Electricity can increase the energy efficiency of road vehicles and contribute to the reduction of CO₂ in transport. It is the essential source of energy for the development of electric vehicles, including light electric vehicles, which can contribute to improving air quality and reducing noise pollution in urban agglomerations. Suburban and other densely populated areas.

The Government presented on April 6, 2010 the Comprehensive Strategy for the Impulse of the Electric Vehicle, with horizon 2014, with different programs for the implementation of measures that contemplate the phenomenon from its various This is the case for: promotion of demand, industrialisation and R & D & I, horizontal actions and promotion of the infrastructure for charging and managing energy demand. With regard to the latter area, the document stated that the priority supply infrastructure must be an element associated with the acquisition of the electric vehicle itself (related infrastructure), associating the rest of the infrastructure for energy charging services.

The Royal Decree-Law 6/2010 of 9 April, of measures for the promotion of economic recovery and employment, reformed Law 54/1997 of 27 November of the Electrical Sector, among other aspects, to include a new agent of the 'system load manager', the main function of which shall be ' the delivery of energy through the charging of electric vehicle charging services using electric motors or storage batteries under conditions allowing for the supply of electric vehicles convenient and at least cost for the user himself and for the electrical system, by means of the future integration with the technological recharge systems that develop ". This does not prevent the holders of non-public car parks from being able to make the appropriate facilities and manage their own supply or to have an internal impact on expenditure.

In the development of the forecast of said Royal Decree-Law 6/2010, of 9 April, the Royal Decree 647/2011, of 9 May, has regulated the activity of charge manager of the system for the performance of services of energy recharge, to the the time it has created a supervalley access fee, in order to optimize the use of the power of electric generation already existing, available in an optional way both in free marketing and in tariff of last resort, which make it possible to make available to users more economic recharges in the corresponding periods time, while offering the electricity system the possibility to improve its overall efficiency by flattening the demand curve. It is estimated that the needs of up to 5 million electric vehicles could be met without increasing the power of generation.

The definition of the figure of the load manager has subsequently been endorsed by the new Law 24/2013 of 26 December of the Electrical Sector, which in its article 48 defines the services of energy recharge and the obligations and rights of the load managers.

According to article 48 of the Law of the Electrical Sector, the energy recharge service will have as its main function the delivery of energy through electric vehicle charging services and storage batteries in some areas. conditions that allow the load to be efficiently and at least cost to the user himself and to the electrical system. In order to ensure the safety of electric vehicle charging facilities, as well as to facilitate their operation at least cost, the relevant technical standard needs to be developed.

The European Union has been discussing technical issues and preparing policy strategies for the promotion of alternative energies and their use. On 24 January 2013, the European Commission published a Communication to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. Clean energy for transport: European strategy on alternative fuels ", and most recently" Directive 2014 /94/EU of 22 October 2014, of the European Parliament and of the Council, on the implementation of an infrastructure for alternative fuels ", both initiatives aimed at strengthening the so-called" alternative fuels " and, in particular, with regard to the electric car, to the approval of a common connector model for electric vehicles of the European Union and the promotion of the necessary infrastructure for the recharging of the electric vehicle.

According to these European policies, and in particular under Directive 2014 /94/EU, Member States of the European Union must ensure that an appropriate number of publicly available charging points are created to enable the public to Electric vehicles shall circulate at least in urban or suburban agglomerations and other densely populated areas and, where appropriate, within the networks to be determined by those Member States. For example, the number of such charging points accessible to the public should be established by means of national action frameworks to be communicated to the Commission by 18 November 2016, taking into account, inter alia, the Estimated number of EVs registered in the horizons of 2020, 2025 and 2030 in each Member State. By way of indication, the appropriate number of charging points shall be at least equivalent to one charging point for every 10 vehicles, taking also into account the type of vehicles, the charging technology and the available private charging points. The public authorities in each Member State will have to take measures to help vehicle users by ensuring that developers and local managers provide the necessary infrastructure with sufficient recharging points. electric vehicles.

Those, and any other initiatives from the EU, should be taken into account, and the relevant legislative acts, approved by the European Parliament and the Council, should be applied in the terms that are determined, This is the way that the appropriate forecasts should be made to accommodate any new element that comes from these bodies in the future as well. In the same way, depending on the evolution in the introduction of the electric vehicle, a flexible way should be possible to adapt to the possible new needs.

This royal decree finds cover in the first place in the final provision of the aforementioned Law of the Electrical Sector, which enables the government, in general, to dictate the regulatory provisions necessary for the development and implementation of this law. In addition, secondly, more specifically, it is also covered by Article 53.9, which provides that facilities for the production, transport, distribution of electrical energy and direct lines, which are intended for reception by the users, consumer equipment, as well as the technical and material elements for electrical installations must comply with the relevant technical standards of industrial safety and quality, in accordance with the provisions of Law 21/1992, of 16 July, Industry, and other rules applicable to it.

On the other hand, one of the purposes of Law 21/1992, of July 16, of Industry, is to contribute to the compatibility of industrial activity with the protection of the environment, which is intimately linked to efficiency and savings energy and the use of renewable energy. Moreover, Article 12 of the Industry Law provides that the safety regulations shall lay down the technical conditions or safety requirements which, according to their purpose, must be met by the facilities, equipment, processes, equipment, equipment, equipment, equipment, equipment, equipment, equipment, equipment, etc. industrial products and their use, as well as the technical procedures for assessing their conformity with those conditions or requirements.

Likewise, Article 12 of the Industry Law, in paragraph 5, determines that the State-wide industrial safety regulations will be approved by the Government of the Nation, without prejudice to the fact that the autonomous communities with (a) legislative competence on industry, may introduce additional requirements on the same subject matter in the case of installations located within its territory. In the development of the aforementioned legal forecast, the Royal Decree 842/2002 of 2 August, which approved the Electrotechnical Regulation for low voltage, was issued.

Thus, this royal decree finds the appropriate framework in the Law of Industry and the Electrotechnical Regulation for low voltage that is modified and complete, to establish the technical specifications that allow the recharge The safety of electric vehicles in any of the situations to be expected. To this end, a new supplementary technical instruction (JTI) is approved by means of this royal decree, which is added to those already included in the Electrotechnical Regulation for Low Voltage, approved by Royal Decree 842/2002 of 2 August, called ITC BT-52 " Facilities for special purposes. Infrastructure for the charging of electric vehicles ", the purpose of which is to regulate the efficient and safe feeding of charging stations. At the same time several other instructions are modified on what, consequently, are affected.

In accordance with the above new technical instruction for equipment and materials, charging stations with standard and technically secure connection elements should be used, as an instrument of the charge managers or extension of the premises of the individuals.

In addition, by means of the additional provision, minimum allocations of the structure for the recharging of the "electric vehicle" are prescribed in buildings or parking lots of new construction and in public roads, that, finds coverage in the provisions of article 3 of Law 38/1999, of 5 November, of Ordination of the Building and in Articles 82.2, 101 and 104.f) of Law 2/2011, of 4 March, of Sustainable Economy.

In the light of the novelty of the matter, it is appropriate to provide for the elaboration of a technical guide that can give practical guidance to the questions that may arise in the development of the matter, what is made in the provision additional second.

In short, this royal decree constitutes a regulatory standard on industrial safety in energy installations in accordance with the provisions of Law 21/1992, of 16 July, of Industry and Law 24/2013, of 26 of December, of the Electrical Sector, although, its additional first provision must also be put in relation to the Law 38/1999, of 5 November, of Management of the Building, and Law 2/2011, of 4 March, of Sustainable Economy.

For what it does to the order of competence, this royal decree is dictated by the provisions of the rules 13. and 25. of article 149.1 of the Spanish Constitution, which attribute to the State exclusive competences on bases and coordination of the general planning of economic activity and on the basis of the mining and energy regime, respectively. In any event, this regulation is of a basic regulation and contains provisions of a unique and markedly technical nature, which is why the law is not an appropriate instrument for its establishment and its approval is justified. by royal decree.

For its elaboration, this royal decree has been submitted to the hearing procedure prescribed in article 24.1.c) of Law 50/1997 of 27 November, of the Government, including the consultation of the autonomous communities and the more representative of the local authorities, as well as the procedure for information of technical standards and regulations and regulations relating to the information society, regulated by Royal Decree 1337/1999 of 31 July, for the purpose of giving compliance with the provisions of Directive 98 /34/EC of the European Parliament and of the Council of 22 June, as amended by Directive 98 /48/EC of the European Parliament and of the Council of 20 July. It has also been the subject of a report by the Council for the Coordination of Industrial Security, as required by Article 2 (d) of its Rules of Procedure, adopted by Royal Decree 25/1997 of 21 February.

In its virtue, on the proposal of the Minister of Industry, Energy and Tourism, in agreement with the Council of State, after deliberation of the Council of Ministers at its meeting on December 12, 2014,

DISPONGO:

Single item. Approval of the complementary technical instruction (ITC) BT-52, " Facilities for special purposes. Infrastructure for the charging of electric vehicles ', of the electrotechnical regulation for low voltage.

1. The Complementary Technical Instruction (ITC) BT-52, " Facilities for special purposes, is approved. Infrastructure for the charging of electric vehicles ', of the Electrotechnical Regulation for low voltage, approved by Royal Decree 842/2002 of 2 August, the text of which is inserted below.

2. The economic conditions of the system shall be governed by their specific rules.

Additional disposition first. Minimum structure endowments for the recharging of the electric vehicle in newly constructed buildings or parking lots and on public roads.

1. In buildings or parking lots of new construction, the specific electrical installation for the charging of electric vehicles shall be included, executed in accordance with the provisions referred to in that referred to (ITC) BT-52. special. Infrastructure for the recharge of electric vehicles ", which is approved by this royal decree, with the following minimum endowments:

(a) In car parks or collective parking lots in horizontal-owned buildings, a main driving car must be carried out by Community areas (by means of tubes, channels, trays, etc.), make it possible to carry out referrals to the charging stations located in the parking spaces, as described in paragraph 3.2 of the (ITC) BT-52,

(b) in car parks or parking lots of private, cooperative or enterprise fleets, or those of offices, for their own staff or associates, or municipal vehicle depots, the facilities necessary to supply a charging station for every 40 places and

c) in permanent public parking or parking facilities, the facilities required to supply a charging station for every 40 places.

It is considered that a building or parking lot is newly constructed when the constructive project is submitted to the public administration competent for processing at the date after the entry into force of this real. decree.

2. On the public road, the necessary facilities shall be made to supply the charging stations located in the seats for electric vehicles which are provided for in the Supramunitial Sustainable Mobility Plans or municipal.

Additional provision second. Technical Guide.

The industrial safety management body of the Ministry of Industry, Energy and Tourism will develop and keep up to date a non-binding technical guide for the practical implementation of the forecasts of this royal decree, which may establish clarifications to concepts of a general nature included in it.

Single transient arrangement. Deadline for the completion of the installations at the execution stage before the date of entry into force of the royal decree.

The charging facilities for the electric vehicle that are running before the date of entry into force of this royal decree will have the three-year period from that date, for their termination and entry into service without having to be subject to the requirements of the service, for which the holders or, on their behalf, the installation companies which implement them, shall submit to the competent public administration within six months of that entry in force, a list of facilities in this situation. For the purposes of accrediting the execution, the date of the corresponding work licence shall be taken as a reference. The competent bodies of the Autonomous Communities, in the case of objective situations, justified by the holder by means of a technical report, may amend that period.

Single repeal provision. Regulatory repeal.

How many provisions of equal or lower rank contradict the provisions of this royal decree are repealed.

Final disposition first. Amendment of the Technical Supplementary Instruction (ITC) BT-02 of the low voltage electrotechnical regulation.

In the table of Supplementary Technical Instruction (ITC) BT-02, "Reference standards in the low voltage electrotechnical regulation" of the low voltage electrotechnical regulation, approved by Royal Decree 842/2002 of 2 August, the following rules are added:

UNE-EN 61009-2-1: 1996

UNE-EN 61009-2-1/A11: 1999

	Title
UNE-EN 50160: 2011	Characteristics of the voltage supplied by the general distribution networks
UNE-EN 50470-1: 2007	Teams of electrical energy (c.a.). Part 1: General requirements, tests and test conditions. Measurement equipment (class A, B, and C indexes)
UNE-EN 50470-3: 2007	Electrical energy measurement equipment (c.a). Part 3: Specific requirements. Active energy static counters (classification indexes A, B, and C)
UNE-EN 61008-1: 2006 UNE-EN 61008-1/A11: 2008 UNE-EN 61008-1/A12: 2009 UNE-EN 61008-1/A13: 2013	Automatic switches to act by residual differential current, no device protection against over-intensities, for domestic and analogue purposes (ID). Part 1: General Rules. This rule will no longer apply from 19/06/2017
UNE-EN 61008-1: 2013	Switches The invention relates to an automatic method for operating by a residual differential current, without a device for protection against over-intensities, for domestic and analog uses (ID). Part 1: General rules
	UNE-EN 61008-2-1: 1996 UNE-EN 61008-2-1/A11: 1999	Automatic switches for acting by residual differential current, without protection against over-intensities, for domestic and analogue purposes (ID). Part 2-1: Applicability of general rules to functionally independent IDs of power voltage
UNE-EN 61009-1: 2006 UNE-EN 61009-1 CORR. 2007 UNE-EN 61009-1/A11: 2008 UNE-EN 61009-1/A12: 2009 UNE-EN 61009-1/A13: 2009 UNE-EN 61009-1/A14: 2013	Automatic switches to act on residual differential current, with built-in superintensity protection device, for domestic and analogue uses (AD). Part 1: General rules. This rule will no longer apply on 18/06/2017
UNE-EN 61009-1: 2013	Switches automatic to act by residual differential current, with built-in over-intensity protection device, for domestic and analogue uses (AD). Part 1: General rules
Automatic switches for acting by residual differential current, with built-in overintensity protection device, for domestic and analogue uses (AD). Part 2-1: Application of general rules to functionally independent AD AD rules
UNE-EN 60898-1: 2004 UNE-EN 60898-1 ERRATUM 2009 UNE-EN 60898-1/A1: 2005 UNE-EN 60898-1/A11: 2006 UNE-EN 60898-1/A12: 2009 UNE-EN 60898-1/A13: 2013	Electrical Accessories. Automatic switches for domestic and similar installations for protection against over-intensities. Part 1: Automatic switches for alternating current operation
UNE-EN 60898-2: 2007	Electrical Accessories. Automatic switches for domestic and similar installations for protection against over-intensities. Part 2: Automatic switches for operation in alternating current and in continuous current. (IEC 60898-2:2000 + A1:2003, modified).
	UNE-EN 61643-11: 2005 UNE-EN 61643-11/A11: 2007	Pararrays low voltage. Part 11: lightning rods connected to low voltage electrical systems. Requirements and tests. This rule will no longer apply on 28/08/2015
UNE-EN 61643-11: 2013	Devices protection against low voltage transient surges. Part 11: Transitional surge protection devices connected to low voltage electrical systems. Test requirements and methods.
UNE-EN 62208: 2012	Empty envelopes intended for low voltage aparament assemblies. General requirements
HD 60364-5-51: 2010 UNE HD 60364-5-51/A11:2013	Power installations in buildings. Part 5-51: Selection and installation of electrical materials. Common rules
EN 50550: 2012 UNE EN 50550/AC: 2012	Surge protection devices industrial frequency for domestic and analog uses (POP)
UNE-EN 50557:2012	Requirements for automatic rearmament devices (ARD) for automatic switches, AD, and home and analog IDs
UNE-EN 61851-1:2012	Driving system for charging for electric vehicles. Part 1: General requirements
UNE-EN 62196-1:2012 UNE-EN 62196-1/A11:2013	Bases, pegs, connectors vehicle and vehicle entries. Conductive load of electric vehicles. Part 1: General requirements
UNE-EN 62196-2:2012 UNE-EN 62196-2/A11:2013 UNE-EN 62196-2/A12:2014	Bases, pegs, vehicle connectors, and vehicle entries. Conductive load of electric vehicles. Part 2: Dimensional Compatibility and Interchangeability Requirements for Spare and Alveoli Accessories on alternating current
62196-3:2014	Bases, pegs, vehicle connectors, and vehicle entries. Conductive load of electric vehicles. Part 3: Dimensional compatibility and interchangeability requirements for vehicle couplers of spikes and alveoli in continuous current and alternating current/continuous

Final disposition second. Amendment of the Technical Supplementary Instruction (ITC) BT-04 of the Electrotechnical Regulation for low voltage.

Paragraph 3 of the Supplementary Technical Instruction (ITC) BT-04, "Documentation and commissioning of the installations" of the Electrotechnical Regulation for Low Voltage, approved by Royal Decree 842/2002 of 2 August, is hereby approved. redacted as follows:

" 3. Installations that require project.

3.1 For execution, the following new installations are required to be worked out:

Table_table_izq">-Temporary in local or open sites.

Installation Type	Limits
a	Those for industries, in general.	P > 20 kW.
b	The corresponding to: - Wet, dusty or corrosion-risk premises. -Water extraction or lifting pumps, whether industrial or not.	P > 10 kW.
c	The corresponding to: -Wet locales. -Generators and converters. -Isolated drivers for heating, excluding homes.	d
d		d	d	d
P > 50 kW.
	Those of buildings primarily intended for housing, commercial premises and offices, which do not have the consideration of public concurrency, vertical or horizontal building.	P > 100 kW per gral box.
f	The corresponding single-family homes.	P > 50 kW.
g	The car parks or parking lots that require forced ventilation.	Whatever your occupation.
h	The car parks or parking lots that have natural ventilation.	More than 5 parking spaces
i	The corresponding public concurrency locales.	Unbound.
j	The corresponding to: -Lines of low voltage with high voltage common supports. -Lift and transport machines. -Those using special voltages. -Intended Light labels except that low voltage installations are considered as set out in the ITC-BT-44. -Electrical Cercas. -Air or underground distribution networks.	No power limit.
k	-exterior lighting installations.	P > 5 kW.
l	The corresponding to local with fire or explosion risk, except parking or parking lots.	No limit.
m	The operating rooms and rooms	No limit
n	The corresponding pools and sources.	P > 5 kW.
z	The corresponding infrastructure for vehicle recharge power.	P > 50 kW.
	P > 10 kW
All that include stations that include reload mode 4.	No limit
or	All those that, not being In the previous groups, determine the Ministry with competence in the field of safety	As appropriate

[P = Expected power in the installation, taking into account what is stipulated in the (ITC) BT-10].

It will not be necessary to prepare a project for the reloading facilities to be carried out in the installation groups g) and h) existing in housing buildings, provided that the new facilities are not included in the z).

3.2 Furthermore, the following installations will be required to be developed and modified:

(a) The extensions of the facilities of the types (b, c, g, i, j, l, m) and changes of importance of the facilities identified in 3.1.

(b) The extensions of the installations which, being of the types indicated in 3.1, do not reach the expected power limits laid down for them, but which exceed them when enlargement occurs.

c) The installation extensions that originally required project if one or more extensions exceed 50% of the power expected in the previous project.

3.3 If an installation is comprised of more than one group of those specified in 3.1, you will be given the most demanding criteria for those set for those groups. "

Final disposition third. Amendment of the Technical Supplementary Instruction (ITC) BT-05 of the Electrotechnical Regulation for low voltage.

Paragraph 4.1 of the Supplementary Technical Instruction (ITC) BT-05, "Verifications and Inspections" of the Electrotechnical Regulation for Low Voltage, approved by Royal Decree 842/2002 of 2 August, will have the following wording:

" 4.1 Initial inspections. The following installations shall be inspected, after the installation has been carried out, their extensions or modifications of importance and in advance to be documented before the competent authority of the Autonomous Community:

(a) Industrial installations that require project, with an installed power exceeding 100 kW.

b) Public concurrency premises.

c) Local at risk of fire or explosion, Class I, except parking lots or parking lots of less than 25 seats.

d) Wet premises with installed power exceeding 25 kW.

e) Swimming pools with installed power exceeding 10 kW.

f) Quirophans and intervention rooms.

g) External lighting installations with installed power exceeding 5 kW.

h) Installations of the charging stations for the electric vehicle, which require the preparation of the project for execution. "

Final disposition fourth. Modification of the Technical Supplementary Instruction (ITC) BT-10 of the Electrotechnical Regulation for low voltage.

The complementary technical instruction (ITC) BT-10, "Low voltage load forecast" of the electrotechnical regulation for low voltage, approved by Royal Decree 842/2002 of 2 August, is amended in the following terms: which are expressed below:

One. Paragraph 1 shall be drawn up as follows:

" 1. Classification of places of consumption.

The following classification of places of consumption is set:

-Buildings primarily intended for housing.

-Business or office buildings.

-Buildings destined for a specific industry.

-Buildings destined for a concentration of industries.

-Parking or parking lots with infrastructure for charging electric vehicles. "

Two. Section 2.1.2 shall be drawn up as follows:

" 2.1.2 High Electrification. This is the case for housing with a forecast for the use of household appliances in excess of basic electrification or with a view to the use of electric heating or air conditioning systems or with surfaces Housing supplies of more than 160 m², or with an installation for charging the electric vehicle in single-family homes, or with any combination of the above cases. "

Three. A new paragraph 5 is added, with the following wording:

" 5. Load corresponding to the parking areas with infrastructure for the recharging of electric vehicles in newly constructed housing.

5.1 Single-family homes. For the forecast of loads of single-family homes with infrastructure for the charging of electric vehicles, high electrification shall be considered.

5.2 Installation in parking spaces or collective parking lots in buildings or property sets under horizontal ownership. The forecast of loads for the load of the electric vehicle will be calculated by multiplying 3,680 W, by 10% of the total of the parking spaces constructed. The sum of all these powers will be multiplied by the corresponding concurrency factor and its sum with the forecast of power of the rest of the building installation, depending on the scheme of the installation and the availability of a system protection of the power line, as set out in the (ITC) BT-52.

However, the installation project design may provide for a higher installed power when the data is available to justify it. "

Four. Paragraph 5, 'Load forecast', shall become paragraph 6, with the following wording.

" 6. Load forecasting. The forecast of the consumption and charges shall be made in accordance with the provisions of this instruction. The total load provided for in Chapters 2, 3, 4 and 5 is to be considered in the calculation of the drivers of the affected and in the calculation of the liaison facilities. "

Five. Paragraph 6, 'Monofasic Supplies', shall be renumbered as paragraph 7

Final disposition fifth. Amendment of the Technical Supplementary Instruction (ITC) BT-16 of the Electrotechnical Regulation for low voltage.

Complementary Technical Instruction (ITC) BT-16, " Link Facilities. Concentration of counters " of the electrotechnical regulation for low voltage, approved by Royal Decree 842/2002, of 2 August, is subject to modification in the terms that are expressed below:

One. At the end of paragraph 1. Generalities ", the following text is added:

" When smart meters incorporating the telemanagement function are installed in a centralization, the individual derivations with origin in these counters will not require the thread command specified in the (ITC) BT-15, that these counters allow the application of different rates without the need for the wire. "

Two. At the end of the paragraph, "3. Concentration of counters", the following text is added:

-" A functional unit of measurement for the measurement of the recharge of the electric vehicle (according to the type of electrical scheme used for those indicated in BT-52).

-Functional control unit and protection for the charging of the electric vehicle [according to the type of electrical scheme used for those indicated in the (ITC) BT-52].

-Electrical vehicle power line protection system unit (SPL) unit [according to the type of electrical scheme used for those indicated in the BT-52 (ITC) and in the case of a new installation or already existing]. "

Final disposition sixth. Amendment of the Technical Supplementary Instruction (ITC) BT-25 of the Electrotechnical Regulation for low voltage.

The complementary technical instruction (ITC) BT-25, "Indoor installations in homes. Number of circuits and characteristics ' of the electrotechnical regulation for low voltage, approved by Royal Decree 842/2002 of 2 August, is amended as follows:

One. Section 2.3.2 is amended as follows:

" 2.3.2. High electrification. It is the case of dwellings with an important forecast of household appliances requiring the installation of more than one circuit of any of the types described above, as well as with a forecast of electric heating systems, air conditioning, automation, technical management of energy and safety, for the charging of electric vehicles in single-family homes, or with useful surfaces of homes exceeding 160 m². In this case, the following circuits shall be installed in addition to those for basic electrification:

C₆ Additional circuit of type C₁, for every 30 points of light.

C₇ Additional circuit of type C₂, for every 20 general-use-stream or if the housing's useful surface is greater than 160 m².

C₈ Internal distribution circuit, intended for the installation of electrical heating, when there is provision for this.

C₉ Internal distribution circuit, intended for installation air conditioning, when there is a forecast of this.

C₁₀ Internal distribution circuit, intended for installation of an independent dryer.

C₁₁ Internal distribution circuit, intended for the power of the automation system, technical energy management and security, when there is provision for this.

C₁₂ Additional circuits of any of the types C₃ or C₄, when they are provided, or additional circuit of type C₅, when their number of power sockets exceeds 6.

C₁₃ Additional circuit for the electric vehicle charging infrastructure, when one or more seats or spaces for the parking of electric vehicles are planned.

For both basic and high electrification, at least one differential switch of the characteristics set out in paragraph 2.1 shall be placed for every five circuits installed.

In circuit C₁₃, a unique differential switch for this circuit with the characteristics specified in the (ITC) BT-52 shall be placed. In car parks or collective parking lots in buildings or property sets under horizontal ownership, circuit C₁₃ will be replaced by the corresponding connection schemes installed in the common areas as sets the (ITC) BT-52. "

Two. Table 1 of heading 3 is amended as follows:

" Table 1. Electrical characteristics of the circuits⁽¹⁾.

C₅ Bath, kitchen quarter.

Circuit	Take-up power - W	Concurrency factor - Fs	Usage factor - Fu	Take Type - (7)	Automatic Switch - A	Maximum n ° of points using or using circuit	Minimum section drivers - mm2 (5)	- - - mm (3)
1 Lighting.	200	0.75	0.5	light point(9).	10	30	1.5
C2 Tomás for general use.	3.450	0.2	0.25	Base 16 A 2p + T.	16	20		20
C 3 Kitchen and oven.	5,400	0.5	0.75	Base 25 A 2p + T.	25	2	6	25
C4 Washing machine, dishwasher, and electrical thermos.	0.66	0,66	0.75	Base 16 A 2p + T combined with fuses or switches 16 A (8)	20	3	4 (6
3.450	0.4	0.5	Base 16 A 2p + T.	16	6	2.5	20
8 Heating.	(2)	-	-	25		-	-	6	25
9 Airconditioning.	(2)	-	-	-	25		25	25
10 Secadora.	3.450	1	0.75	Base 16 A 2p + T.	16	1	2.5	20
11 Automation.	(4)	-	-	-	10	-	1.5	16
13 Electric Vehicle Recharge.	(10)	1	1		(10)	(10)	3	2.5	20

⁽¹⁾ The voltage considered is 230 V between phase and neutral.

⁽²⁾ The maximum allowable power per circuit will be 5,750 W.

⁽³⁾ External diameters according to ITC-BT-19.

⁽⁴⁾ The maximum allowable power per circuit will be 2,300 W.

⁽⁵⁾ This value corresponds to an installation of two conductors and ground with PVC insulation under embedded tube in work, as per ITC-BT-19 table 1. Other sections may be required for other cable types or installation conditions.

⁽⁶⁾ On this circuit exclusively, each individual take can be connected by a 2.5 mm² section conductor that stops from a 4 mm circuit bypass box².

⁽⁷⁾ The power-taking bases of 16 A 2p + T shall be fixed of the type indicated in Figure C2a and those of 25 A 2p + T shall be of the type indicated in figure ESB 25-5A, both of standard UNE 20315.

⁽⁸⁾ Fuses or automatic switches are not required if separate circuits are available for each device, with 16 A automatic switch on each circuit. the unbending of the circuit for this purpose shall not result in high electrification or the need for an additional differential.

⁽⁹⁾ The point of light will include a protection driver.

⁽¹⁰⁾ The expected power by take, the types of tap bases, and the assigned intensity of the automatic switch for the C₁₃ circuit are specified in the ITC-BT-52. "

Three. Table 2 under heading 4 is amended as follows:

" Table 2.

-

rowspan="3">

Halls or Distributors.

1

C₁

	Circuit	Mechanism	minimum	Superf ./length
	Access.	1	Stamp push button.	1
C1	C1	Point of Light. Switch 10 A.	1 1	-
	C	Base 16 To 2p + T.				1	C1	Point of Light. Switch 10 A.	1 1	Up to 10 m2 (two if S > 10 m2). One for each light point
2	Base 16 A 2p + T.	(1)	One for every 6 m2, rounded to the top integer.
8	Heating take.	1	Up to 10 m2 (two if S > 10 m2)
9	Air conditioning take.	1	Up to 10 m2 (two if S > 10 m2)
Bedrooms.	C1	Points of Light. Switch 10 A.	1 1	Up to 10 m2 (two if S > 10 m2). One for each point of light.
	2	Base 16 A 2p + T.	(1)	One for every 6 m2, rounded to the top integer.
	C		1	-
	C9	Air conditioning take.	1	-
Baths.	C	light points. Switch 10 A.	1
	5	Base 16 A 2p + T.	-	-	-	1	-
- C			-
C1	Points of Light.	1 1	1	One every 5 m length. One in each access.
2	Base 16 A 2p + T.	1	Up to 5 m (two if L > 5 m).
C	Heating Take.
1	C1	Light points. Switch 10 A.	1 1	Up to 10 m2 (two if S > 10 m2). One for each point light.
	2	Base 16 A 2p + T.	2
		25 A 2p + T.	C3	C 1	Kitchen/oven.
	4	Base 16 A 2p + T.	3	Washing machine, dishwasher, and thermos.
	C	Base 16 A 2p + T.	3(2)	Top of the plane job.
	8	Take heating.	1	-
	10
1	1	1		C1	Points of Light.	1 1	1 1	Up To 10 m2 (two if S > 10 m2). C1
		1	C1	C The_table_to_izq"> light points. Switch 10 A.	1	Up to 10 m2 (two if S > 10 m2). One for each point of light
2	Base 16 A 2p + T.		1	Up To 10 m2 (two if S > 10 m2).
13	1	1	1	-

⁽¹⁾ Where the installation of a shot is provided for the TV receiver, the corresponding base must be multiple, and in this case it will be considered as a single basis for the purposes of the number of points of use of the table 1.

⁽²⁾ They will be placed outside a volume delimited by vertical planes located 0.5 m from the sink and from the cooking or cooking countertop.

⁽³⁾ The expected power by take, the types of tap bases, and the assigned intensity of the automatic switch for the C₁₃ circuit are specified in the ITC-BT-52. "

Final disposition seventh. Competence title.

This royal decree is dictated by the provisions of Article 149.1.13. and the 25th of the Constitution, which attribute to the State exclusive competences on the basis and coordination of the general planning of the activity. economic and on the basis of the energy regime, respectively.

Final disposition octave. Enablement for modification of the technical content of ITC BT-52.

The Minister of Industry, Energy and Tourism is authorized, after agreement of the Government Delegation for Economic Affairs, to modify the technical content of the complementary technical instruction BT-52, " Facilities for special purposes. Infrastructure for the charging of electric vehicles " of the electrotechnical regulation for low voltage, approved by Royal Decree 842/2002, of 2 August, in order to keep it permanently adapted to the progress of the technique, as well as to the rules of law of the European Union or other international bodies.

Final disposition ninth. Enabling for the establishment of provisional technical prescriptions.

The Minister of Industry, Energy and Tourism, in consideration of the progress of the technique and at the justified request of the interested party, may authorize, on a provisional basis, with the agreement of the Commission Delegated Commission for Economic matters, and by order to be published in the "Official State Gazette", technical requirements alternative to those provided for in the complementary technical instruction BT-52, provided that they enable a level of safety at least equivalent to the previous ones, as a result of the appropriate modification of the said instruction.

Final disposition tenth. Entry into force.

This royal decree will enter into force for the six months of its publication in the "Official State Gazette".

Given in Madrid, on December 12, 2014.

FELIPE R.

The Minister of Industry, Energy and Tourism,

JOSE MANUEL SORIA LOPEZ

COMPLEMENTARY TECHNICAL INSTRUCTION (ITC) BT-52

Facilities for special purposes. Infrastructure for the charging of electric vehicles

Index

1. Object and scope of application.

2. Terms and definitions.

3. Installation schemes for the charging of electric vehicles.

3.1 Installation in single-family housing parks.

3.2 Installation in car parks or collective parking lots in buildings or property sets under horizontal ownership.

3.3 Other charging facilities.

4. Forecast loads according to the installation schema.

4.1 Collective schema with a common main counter (schemas 1a, 1b, and 1c).

4.2 Individual schema (schemas 2, 3a, and 3b).

4.3 Schema 4 (schemas 4a and 4b).

5. General installation requirements.

5.1 Power.

5.2 Neutral connection systems.

5.3 Canalizations.

5.4 Connection point.

5.5 Secondary energy measure counter.

6. Protection to ensure security.

6.1 Protection measures against direct and indirect contacts.

6.2 Protective measures based on external influences.

6.3 Over-intensity protection measures.

6.4 Surge protection measures.

7. Particular installation conditions.

7.1 Land network for outdoor parking spaces.

1. Object and scope of application

1. The purpose of this Instruction is to establish the requirements applicable to installations for the charging of electric vehicles.

2. The provisions of this Instruction shall apply to electrical installations falling within the scope of the Electrotechnical Regulation for low voltage regardless of whether their ownership is individual, collective or corresponds to a load manager, necessary for the recharging of electric vehicles in public or private places, such as:

a) Parking of single-family or single-owned homes.

b) Collectives or collective parking lots in buildings or property sets of horizontal property.

(c) Parking or parking lots of private, cooperative or enterprise fleets, or offices, for their own staff or associates, those of workshops, car dealers or municipal vehicle depots electrical and similar.

(d) Public or private parking or parking lots, whether public or private.

(e) Public domain Vies intended for the movement of electric vehicles, located in urban areas and in the service areas of the State-owned roads provided for in Article 28 of Law 25/1988 of 29 July 1988, of Roads.

3. This instruction is not applicable to induction charging systems, nor to facilities for recharging batteries that produce gas shedding during their recharge.

2. Terms and definitions

For the purposes of this instruction:

"Collective Recharge Circuit". The inner circuit of the receiving installation, starting from a centralisation of counters or a control and protection frame, is intended to feed two or more charging stations for the electric vehicle.

"Individual reload circuit". Inner circuit of the receiving installation which, based on the centralisation of counters, is intended to feed a charging station for the electric vehicle, or a housing circuit based on the general control and protection table. is intended to power a charging station of the electric vehicle (C circuit₁₃).

"Primary electric counter". Electric power meter for the energy measure consumed by one or more charging stations. These counters will comply with applicable legal metrology regulations and the unified measurement points regulation.

"Secondary Counter". An individual measurement system associated with a charging station, which allows the impact of the costs and the management of the consumption. These individual measurement systems will comply with applicable legal metrology regulations, but they are not subject to the unified measurement points regulation as they are not the border points of the electrical system.

"Electric Mobility Station". Charging infrastructure which has at least two charging stations, which allow the simultaneous charging of a category up to M1 (electric vehicle of at least eight seats-excluding that of the driver-designed and manufactured for the carriage of passengers) and N1 (Electric vehicle, the maximum mass of which does not exceed 3,5 tonnes designed and manufactured for the carriage of goods), according to Directive 2007 /46/EC. Recharging in alternating current (single-phase or three-phase) or on-stream is to be possible.

"Reload station". A set of elements necessary to make the connection of the electric vehicle to the fixed electrical installation necessary for its recharge. Charging stations are classified as:

1. Simple charging point, consisting of the necessary protection, one or more non-specific power-taking bases for the electric vehicle and, where applicable, the enclosure.

2. SAVE (Power System Specific Power System) reloading point.

"Pilot Control Function". Any medium, whether electronic or mechanical, ensures that safety-related conditions and the transmission of required data are met according to the recharging mode used.

"Electric Vehicle Recharge Infrastructure (ELECTRIC VEHICLE)". A set of physical and logical devices, intended for the recharge of electric vehicles that meet the safety and availability requirements for each case, with the capacity to provide full and complete recharging service. An electric vehicle includes charging stations, the control system, electrical channels, the electric control and protection frames and the measuring equipment, when these are exclusive for charging the electric vehicle.

"Load Mode 1". Connection of the electric vehicle to the AC power grid by means of standard sockets, with an intensity not exceeding 16A and the voltage allocated on the power side not exceeding 250 V AC Single-phase or 480 V AC current in three-phase and using active and protective conductors.

"Load Mode 2". Connection of the electric vehicle to the AC power grid not exceeding 32A and 250 V in single-phase AC or 480 V in three-phase current, using monofasic or three-phase normalized power sockets and using the conductors active and protective together with a pilot control function and a protection system for persons, against electrical shock (differential current device), between the electric vehicle and the plug or as part of the control box located on the cable.

"Load Mode 3". Direct connection of the electric vehicle to the AC power network using a SAVE, where the pilot control function is extended to the SAVE control system, being permanently connected to the power plant fixed.

"Load Mode 4". Indirect connection of the electric vehicle to the AC power network using a SAVE incorporating an external charger in which the pilot control function extends to the permanently connected equipment to the power plant fixed.

"Connection point". The point at which the electric vehicle is connected to the fixed electrical installation necessary for its recharge, either to a power outlet or to a connector.

"Electric Vehicle Specific Power System (SAVE)". Set of equipment mounted for the purpose of supplying electrical energy for the recharging of an electric vehicle, including protection of the charging station, the connection cable, (with phase, neutral and protective conductors) and the base of the outlet or the connector. This system shall allow for communication between the electric vehicle and the fixed installation. In load mode 4 the SAVE also includes an alternating-continuous converter.

Note: The definitions of the pilot control function, load modes, and the electric vehicle-specific power system (SAVE) are based on applicable international standards.

"Power Line Protection System (SPL)". System for the protection of the general line of supply against overloads, which avoids the failure of supply for the whole of the building due to the performance of the fuses of the general protection box, by the momentary decrease of the power intended for the charging of the electric vehicle. This system can act by disconnecting loads, or by regulating the recharge intensity when using the 3 or 4 modes. The disconnect and reconnection order can act on a contactor or equivalent system.

"Electric Vehicle (ELECTRIC Vehicle)". An electric vehicle whose propulsion energy is derived, in whole or in part, from the electricity of its batteries using the power of an external source to the electric vehicle, for example, the electrical grid.

"Connection types between the charging station and the electric vehicle". The connection between the charging station and the electric vehicle may be made according to the cases A, B and C described in Figures 1, 2 and 3. Note that figures 1, 2, and 3 do not assume any specific design.

Here are several images in the original. See the official and authentic PDF document.

3. Installation schemes for the charging of electric vehicles

New facilities for feeding the charging stations, as well as the modification of existing facilities, which are fed by the electricity distribution network, will be carried out according to the connection described in this section. In any event, prior to the installation, the installer or, where appropriate, the project operator, must prepare a technical documentation in the form of design or project technical memory, as appropriate in application of the (ITC) BT-04, in the the connection scheme to be used is indicated. The possible schemas will be as follows:

1. A collective or trunk schema with a main counter at the source of the installation.

2. Individual scheme with a common counter for housing and charging station.

3. Individual schema with a counter for each charging station.

4. Scheme with circuit or additional circuits for charging the electric vehicle.

Here are several images in the original. See the official and authentic PDF document.

For the selection between schemes 1a and 1b, the following priority criteria will be applied, first the existing centralisation reserve modules (scheme 1a) will be used, if this is not enough to be extended The existing centralisation using also scheme 1a, in the latter case and for lack of space, will have one or more new centralizations in lockers or premises (scheme 1b).

An image appears in the original. See the official and authentic PDF document.

The protection of charging circuits can be made with fuses or with automatic switches. The centralisation of electric vehicle charging counters can be part of the existing centralisation or be available in one or more new centralizations in lockers or premises.

An image appears in the original. See the official and authentic PDF document.

For scheme 2 in the project or design technical memory, it is justified that the fuse of the centralization protects against short circuits both the individual derivation and the individual recharging circuit, in particular for the minimum short circuit intensity, increasing the section obtained by applying the voltage drop and the overload protection criteria for this circuit, if necessary. The power control function contracted by the client will be performed by the main counter, without the need to install an independent PCI. In case of performance of the power control function, your rearmament will be performed directly from the dwelling.

Here are several images in the original. See the official and authentic PDF document.

For selection between schemes 3a and 3b, the following priority criteria will be applied, first the existing centralisation reserve modules (scheme 3a) will be used, if this is not enough to be extended The existing centralisation using also scheme 3a, in the latter case and for lack of space, will have one or more new centralizations in lockers or premises (scheme 3b).

An image appears in the original. See the official and authentic PDF document.

The installation schemes described in this section do not apply to the connection of charging stations that are fed by an independent network of the alternating current distribution network. used, for example, by means of a continuous current or rail alternating current network, or by means of a renewable source of energy with possible energy storage, in which case the installation designer shall specify the scheme electric to be used.

Note that figures 5 to 12 are only illustrative examples of the different schemes of electric vehicle charging facilities and do not contain all the elements of the installation.

3.1 Installation in car parks of single-family homes. In new single-family homes with parking or a planned area in order to be able to host an electric vehicle, an exclusive circuit for the charging of an electric vehicle shall be installed. This circuit will be referred to as circuit C₁₃, according to the nomenclature of the (ITC) BT-25 and will follow the installation scheme 4a.

Existing installations on which you want to install a charging station will also conform to what is set in this section.

The power of this circuit may be single-phase or three-phase and the installed power shall generally respond to one of the steps in Table 1, as provided for by the installation project. However, the project may justify a higher power, depending on the power forecast per recharging station or the number of places built for single-family housing, in which case the circuit and its protections will be sized according to the expected power.

Table 1. Installed powers normalized in a recharging circuit for single-family housing

	Automatic circuit source protection switch	Installed Power	Circuit Reload Stations
230 V	10 A	2,300 W	1
	16 A	3,680 W	1
	20 A	4,600 W	1
	32 A	7.360 W	1
	40 A	1
	230/400 V	16 A	1	11.085 W	1 to 3
		20 A	13,856 W	1 to 4
		32 A	22.170 W	1 to 6
		40 A	27,713 W	from 1 to 8

To avoid power grid imbalances, monofasic C₁₃ circuits will not have an installed power greater than 9,200 W.

When monofasic stations are connected on a three-phase circuit, they will be distributed in the most balanced way possible between the three phases. The maximum number of recharging stations in Table 1 for each three-phase recharging circuit has been calculated assuming single-phase stations of a unit power of 3,680 W. The projettist may extend or reduce the maximum number if it justifies a power installed by lower or higher charging station respectively.

The power-taking bases or connectors installed on the charging station and its automatic protection switches shall be in conformity with any of the options set out in paragraph 5.4.

3.2 Installation in car parks or collective parking lots in buildings or property sets under horizontal ownership. Electrical installations for the charging of electric vehicles located in car parks or collective parking lots in buildings or property sets under horizontal ownership will follow any of the schemes described above. previously. Different schemes may be used in the same building provided all the requirements laid down in this (ITC) BT-52 are met.

In scheme 4a, the charging circuit will follow the installation conditions described in the (ITC) BT-15, using cables and driving systems of the same types and characteristics as for an individual bypass; the Cable section shall be calculated in accordance with the general requirements of paragraph 5 of this ITC, it is not necessary to provide for an extension of the cable section to determine the transverse diameter or dimensions of the driving system to use.

Schema 4b will be used when the power of the charging stations is projected as an integral part or expansion of the electrical installation that serves the general services of the garages.

Both in existing installations and in new installations, and in order to facilitate the use of the selected electrical scheme, the tables with the general protections will be able to be located in the rooms equipped for or in common areas.

Facilities in new construction buildings or buildings shall be equipped with at least one electrical pre-installation for the charging of the electric vehicle, in order to facilitate the subsequent use of the electric vehicle. any of the possible installation schemes. This will provide the following items:

(a) Installation of cable management systems from the centralisation of counters and the main roads of the car park or parking lot in order to be able to feed the charging stations subsequently can be located in the individual parking spaces or parking spaces, by means of drifts from the cable management system of less than 20 m. The cable management systems shall be sized in such a way as to allow at least 15% of the seats to be fed by any of the possible installation schemes.

b) The centralization of counters shall be sized according to the electrical scheme chosen for the charging of the electric vehicle and as established in the (ITC) BT-16. At least one reserve module shall be installed to locate a main counter, and space shall be reserved for the counter-intensity protection devices associated with the counter, either with fuses or with automatic switch.

When the installation is performed for the first point of connection in existing buildings, the installation of the common elements must be provided, if necessary, in such a way as to adapt the infrastructure to accommodate the installation. of future connection points.

The power-taking bases or connectors installed on the charging station and its automatic protection switches shall be in conformity with any of the options set out in paragraph 5.4.

3.3 Other charging facilities. Electrical installations for the recharging of electric vehicles powered by the electricity distribution network, other than those described in 3.1 and 3.2 shall follow the schemes 1a, 1b, 1c, 3 or 4b described above.

The power-taking bases or connectors installed on the charging station and its automatic protection switches shall be in conformity with any of the options set out in paragraph 5.4.

3.3.1 Self-service charging stations (use by people not trained). These recharging stations, such as those located on the public road, in car parks or parking lots of private, cooperative or business fleets, for their own staff or associates and in public parking or parking lots, free of charge or payment, of public or private ownership, are intended to be used by users not familiar with the risks of electrical energy.

This type of installations can use any load mode.

3.3.2 Recharge stations with assistance for their use (use by trained or qualified persons). These recharging stations, such as those located in car parks for fleet recharge, workshops, car dealerships, municipal electric vehicle depots, as well as other stations dedicated specifically to the recharge of the electric vehicle, are intended to be used or supervised by users familiar with the risks of electrical energy,

This type of facility will preferably have load modes 3 or 4, but they will also be equipped with charging stations in mode 1 or 2, when it is planned to recharge low power electric vehicles such as bicycles, mopeds and quadricycles.

4. Load forecasting according to the installation schema

4.1 Collective schema with a common main counter (schemas 1a, 1b, and 1c). The installation of the SPL shall be optional, in newly constructed buildings at the discretion of the developer and in facilities in existing buildings at the discretion of the holder of the supply, or, where appropriate, of the Board of Owners. The sizing of the link facilities and the forecast of loads shall be carried out by considering a concurrency factor of the electric vehicle loads with the rest of the installation equal to 0,3 when the SPL and 1,0 are installed when not is installed. As input of information the SPL will receive the measure of intensity that circulates through the LGA.

P_{building =} (P₁ + P₂ + P₃ + P₄ ) + 0.3 P&P₅ (SPL is installed)

P_{building =} (P₁ + P₂ + P₃ + P₄ ) + P₅ (SPL is not installed)

Where:

P₁ Load corresponding to the housing set obtained as the number of dwellings by the concurrency coefficient of Table 1 of the (ITC) BT-10.

P₂ Load for general services.

P₃ Charge for business premises and offices.

P₄ Load corresponding to garages other than electric vehicle recharge.

P₅ Expected load for electric vehicle charging.

In the project or technical memory of facility design in existing buildings, the calculation of the maximum number of charging stations that can be fed taking into account the power available in the LGA and Considering the sum of the power installed on all recharging stations with the concurrency factor corresponding to the rest of the installation, as available or not of the SPL.

The number of possible charging stations for each collective recharging circuit and its load forecast shall be calculated, taking into account the expected power of each station with a concurrency factor between the stations of reloads equal to the unit. However, the number of stations per collective recharging circuit may be increased and the concurrency factor between them shall be reduced if a control system is available to measure the intensity of the collective recharge circuit and reduce the intensity available at the stations, avoiding overloads in the collective recharging circuit.

4.2 Individual schema (schemas 2, 3a, and 3b). The sizing of the link facilities and the forecast of loads shall be carried out by considering a concurrency factor of the electric vehicle loads with the rest of the installation loads equal to 1,0.

In schemes 3a and 3b, the power control function contracted for the charging station will be performed with the main counter, without the need to install an external PCI to the counter.

4.3 Schema 4 (schemes 4a and 4b). The load forecast shall be performed by considering a concurrency factor of the loads of the electric vehicle with the other circuits of the installation equal to 1,0. In order to calculate the number of charging stations in a collective reloading circuit and the concurrency between them according to scheme 4b, the following shall apply to paragraph 4.1.

5. General installation requirements

In closed buildings for public or private car parks or parking lots, the battery charging operation may be performed provided that such operation is carried out without release. of gases during recharge and that such premises are not classified as local at risk of fire or explosion according to the (ITC) BT-29. A reflective sign on the charging point identifying that the recharging of batteries with gas shedding is not permitted shall be placed on the premises where the electric vehicle recharge is carried out.

Collective charging circuits will preferably run through common areas.

For schemes 1a, 1b, 1c, 2, 3a and 3b, the main counters shall be located in the premises or cabinet intended to accommodate the concentration of counters or, if not sufficient space is available, a new local or cabinet to the effect in accordance with the requirements of the (ITC) BT-16. When secondary counters are installed, they will be located in a cabinet, surround, or SAVE.

The general power line will be allowed to have minor-section derivations if the protection of such over-intensities is guaranteed. For this purpose, in schemes 1b, 1c and 3b, the necessary protection with fuses or automatic switch may be included in the shunt box.

When a collective recharging circuit is installed that feeds multiple charging stations (according to scheme 1a, or 1b), each circuit will start from an automatic switch for its protection against overloads and short circuits. Upstream of each automatic switch and in the same frame an IGA (automatic general switch) will be installed for the general protection of all recharging circuits.

In car parks and parking lots, the control and protection frame associated with charging stations will be identified in relation to the allocated parking space or parking spaces. The elements to be installed in that table are defined in paragraph 6.

The control and protection tables, or in their case the SAVE with integrated protection, shall have to be fitted with locking systems in order to avoid undue handling of the control and protection devices.

The power installed in the three-phase collective charging circuits according to scheme 1a, 1b or 4b shall generally be adjusted to one of the steps in the following table, although the project may justify a different power, in which case the circuit and its protection shall be sized according to the intended power.

Table 2. Normalized installed power of the collective recharge circuits intended to feed charging stations

230/400 V

		Auto-switch auto-protection circuit reloading	Installed Power	Maximum number of recharging stations per circuit
230/400 V	16 A	11.085 W
230/400 V	32 A	22.170 W	230/400 V
	A	34.641 W
63 A	43,647 W	12

Monofasic recharging stations will be distributed in a balanced way between the three phases of the collective recharging circuit. The maximum number of charging stations for each collective recharging circuit indicated in Table 2 has been calculated assuming that the stations are single-phase and of a unit power of 3,680 W. The projectionist may extend or reduce the number of charging stations if it justifies a power installed by lower or higher station respectively.

The power forecast and the characteristics of the collective or individual recharge circuit provided for load mode 4 will be determined for each particular project.

The lighting system in the area where the recharging is planned shall ensure that during the operations and manoeuvres necessary for the start and completion of the recharge there is a horizontal level of illumination. minimum floor level of 20 lux for outdoor charging stations and 50 lux for indoor charging stations.

The maximum permissible voltage drop in any circuit from its origin to the point of recharge shall not exceed 5%. The drivers used shall generally be copper and their section shall not be less than 2,5 mm², although they may be made of aluminium in installations other than housing or collective car parks in residential buildings, in which case the Minimum section will be 4 mm². Whenever aluminium conductors are used, their connections must be made using appropriate techniques to prevent the driver's deterioration due to the occurrence of dangerous potentials, which are caused by galvanic pairs of metals. different.

In installations for electric vehicle recharge, which gather more than 5 charging stations, for example in stations specifically dedicated to the charging of the electric vehicle, the project will study the need for installing harmonics correction filters, in order to ensure that the harmonic distortion of the voltage is maintained according to the limits characteristic of the voltage supplied by the general distribution networks, so that other users who are connected at the same point in the network are not harmed.

The circuit that feeds the charging point must be a dedicated circuit and must not be used to power any other electrical equipment except auxiliary consumption related to the recharging system itself, among which include the lighting of the charging station.

The fixed installation for the charging of the electric vehicle shall have the power-taking bases corresponding to the charging mode and the location of the charging station in accordance with paragraph 5.4, in such a way as to avoid the use of extensions or adapters by users of the recharge services.

In all cases, but especially in existing buildings, the designer of the installation will check that the permissible intensity of the general power line (or the individual shunt in case of the case) is not exceeded. single-family homes), taking into account the expected power of each charging station and the concurrency factor as appropriate as referred to in paragraph 4.

The installation for charging the electric vehicle can be projected as an extension of the existing low voltage installation or with a direct power supply of the distribution network through a link installation independent of the existing one.

For any installation dedicated to the charging of electric vehicles, the following general requirements shall apply:

5.1 Power. The nominal voltage of the electrical installations for the charging of electric vehicles powered from the distribution network shall be 230/400 V in alternating current for charging modes 1, 2 and 3. When a three-phase power charging station is required to be installed, and the existing power voltage is 127/220 V, it shall be converted to a three-phase 230/400 V.

In load mode 4, the power voltage refers to the input voltage of the alternating-continuous converter, and may be up to 1000 V in alternating current and 1500 V current.

5.2 Neutral Connection Systems. In order to allow protection against indirect contacts through the use of differential protection devices in special cases where the installation is powered by a TN scheme, it will only be used in the form TN-S.

5.3 Canalizations. The channels required for the installation of charging points must comply with the requirements set out in the different JTIs of the REBT according to the type of premises where the installation is to be made (local public). concurrency, local of special features, etc.).

The cables from the SAVE to the point of connection that are part of the fixed installation (see Figure 3, case C of connection form), must be of voltage assigned minimum 450/750 V, with copper conductor class 5 or 6 (suitable for mobile uses) and resistant to all the conditions laid down at the site of the installation: mechanical (e.g. abrasion and impact, shaking or crushing), environmental (e.g. presence of oils, ultraviolet radiation or temperatures extreme) and security (e.g., deflagration or vandalism).

When the power cords of the charging stations run through the outside, these will be of voltage assigned 0 ,6/1 kV.

5.4 Connection point. The connection point must be placed next to the place to be fed, and fixed in an enclosure. The minimum installation height of the sockets and connectors shall be 0,6 m above the ground level. If the charging station is intended for public use the maximum height shall be 1,2 m and in the seats for persons with reduced mobility, between 0,7 and 1,2 m.

To ensure the interconnectivity of the electric vehicle to the charging points, for powers greater than 3,7 kW and less than or equal to 22 kW the AC charging points shall be equipped at least with bases or connectors of type 2. For powers greater than 22 kW the AC charging points shall be equipped with at least type 2 connectors. In mode of load 4 the continuous charging points shall be equipped with at least connectors of type combo 2, in accordance with EN 62196-3.

In the case of monofasic recharging stations of alternating current power less than or equal to 3,7 kW installed in single-family dwellings or in car parks for buildings of horizontal property the point of AC recharging may be equipped with any of the power-taking bases or connectors indicated in Table 3.

In load modes 3 and 4 the bases and connectors must always be embedded in a SAVE or equivalent system that does the SAVE functions.

According to the charging mode (1, 2 or 3) the power-taking bases or connectors installed on each charging station and their protection must be in compliance with any of the options in Table 3, depending on the location of the load. charging station, and that the power is single-phase or three-phase.

Table 3. Possible connection points to install based on your location

reload station power	Power socket or connector of type described in: (1)	Connection point allocated intensity	Automatic protection switch of the connection point	Expected load mode	Possible connection point
					-family homes	Buildings in buildings homes	Other
Monofasic	Take-up Base Current: UNE 20315 -1-2. Fig. C2a.	-	10 A(2)	1 or 2	Yes	Yes
	Base: UNE 20315 -2-11. Fig. C7a.	-	10 A(2)	1 or 2	Yes	Yes
		UNE-EN 62196-2, type 2(3)	16 A	(4)	3	Yes	Yes
UNE-EN 62196-2, type 2(3)	32 A	(4)	3	Yes	Yes
Triphasic	UNE-EN 62196-2, type 2(3)	16 To	4)	3	Yes	Yes
	UNE-EN 62196-2, type 2(3)	32 A	(4)	3	Yes	Yes
	UNE-EN 62196-2, type 2(3)	63 A	(4)	3	No	No	No

⁽¹⁾ The recharging of electric buses may require very high power charging stations, so in these cases other standard outlet bases and standard connectors other than the ones may be used. indicated in the table.

⁽²⁾ An automatic 16 A may also be used, provided that the manufacturer of the base ensures that it is protected by this automatic in the operating conditions intended for the slow recharging of the vehicle 8-hour daily top-ups, 16 A.

⁽³⁾ Charging stations other than those intended for recharge mode 4 that are located in public places, such as shopping centers, public use garages, or public roads, will be prepared for recharge 3 with type 2 outlet bases, except in those places intended to recharge low-power electric vehicles, such as bicycles, mopeds and quadricycles, which may use other charging modes and take-out bases normalized current.

⁽⁴⁾ The protection against over-intensities of each outlet or connector may be inside the charging station (SAVE) so, in such a case, the choice of its features is the responsibility of the manufacturer. For the protection of the power circuit to the charging station see paragraph 6.3.

The content of this paragraph will be adapted to the requirements that will be mandatory for future European directives or regulations in this field.

5.5 Secondary energy measurement counter. Secondary electrical energy measurement meters shall have at least the capacity to measure active energy and shall be of Class A or higher.

When in schemes 1a, 1b, 1c, and 4b, there is a commercial transaction that depends on the measure of the energy consumed, the installation of secondary meters for each of the charging stations will be mandatory. in:

(a) Parking lots of car parks or collective parking lots in buildings or property sets on a horizontal property basis.

b) In electric mobility stations for charging the electric vehicle.

c) On the charging stations located on the public road.

For schemes 1a, 1b, 1c, and 4b, in commercial, office or industry buildings, secondary counters will also be installed when it is necessary to identify individual consumption. Its installation shall be optional at the choice of the holder for schemes 2 and 4a.

6. Protection to ensure security

6.1 Protection measures against direct and indirect contacts. The general measures for the protection against direct and indirect contacts shall be those indicated in the BT-24 (ITC) taking into account the following.

The circuit for the power of the electric vehicle charging stations must always be provided with a protective driver, and the general installation must be equipped with ground.

In this type of facility only the measures set out in the BT-24 (ITC) against direct contacts under paragraphs 3.1, protection by isolation of the active parts, or 3.2, protection by means of barriers or wrappers, as well as protective measures against indirect contacts in accordance with paragraphs 4.1, protection by automatic cutting of power, 4.2, protection by use of Class II equipment or by equivalent isolation, or 4.5, electrical separation protection.

Whatever scheme is used, the protection of electrical equipment installations must be ensured by means of differential protection devices. Each connection point shall be individually protected by means of a differential current differential protection device-maximum assigned residual of 30 mA, which may be part of the fixed installation or be within the SAVE. In order to ensure selectivity, the differential protection installed at the source of the collective recharge circuit shall be selective or delayed with the installed downstream.

The differential protection devices will be of class A. The differential protection devices installed on the public road will be ready for the installation of an automatic rearmament device and those installed in the public car parks or electric mobility stations shall have a disconnection warning system or be equipped with an automatic rearmament device.

6.2 Protective measures based on external influences. The main external influences to consider in this type of facility are:

For outdoor installations: Penetration of foreign solid bodies, water penetration, corrosion and resistance to ultraviolet rays.

For facilities in public, private, or public parking spaces: competence of persons using equipment.

In all cases, mechanical damage.

The project must pay particular attention to the external influences on the site where the installation is located in order to analyse the need to choose superior or additional characteristics to which are prescribed in this section.

When the charging station is installed on the outside, equipment must ensure adequate corrosion protection. This will take into account the requirements included in the (ITC) BT-30.

Degrees of protection against penetration of solid bodies and access to dangerous parts, against water penetration and against mechanical impacts of charging stations can be obtained through the use of multiple wrappers providing the required degree of protection for the assembly of the fully assembled wrappers. In this case, the method for obtaining the different degrees of IP and IK protection must be perfectly defined in the documentation of the manufacturer of the charging station.

6.2.1 Degree of protection against penetration of solid bodies and access to dangerous parts. When the charging station is installed outside the pipes must ensure minimum protection IP4X or IPXXD.

The charging stations and other electric frames will have a minimum protection degree IP4X or IPXXD for those installed inside and IP5X for those installed outside. The degree of protection specified for the charging station does not apply during the reloading process.

6.2.2 Degree of protection against water penetration. When the charging station is installed on the outside, the installation must be carried out according to the provisions of Chapter 2 of the BT-30 (ITC), thus ensuring an IPX4.

The charging stations and other associated electrical tables will have a minimum protection grade IPX4. When the outlet base or connector does not comply with the previous IP grade, the latter must provide the charging station itself by design. The degree of protection specified for the charging station does not apply during the reloading process.

6.2.3 Degree of protection against mechanical impacts. Equipment installed on sites where electric vehicles are to be used shall be protected against external mechanical damage of the high severity impact type (AG3). The protection of the equipment shall be ensured through one of the following means:

a) Employing electrical equipment at a location where the electrical equipment is not subject to a foreseeable impact risk.

b) Disposing some kind of additional mechanical protection in those areas where the equipment is subject to the risk of impact.

c) Selecting electrical equipment with a degree of protection against mechanical damage as specified in paragraphs 6.2.3.1 and 6.2.3.2.

d) Using the combination of some or all of the above measures.

6.2.3.1 Degree of protection of wrappers. When the protection of electrical equipment from mechanical damage is ensured by means of envelopes, once installed they must provide a minimum level of protection IK08 against external mechanical impacts.

The body of charging stations and other electrical boxes located on the outside will have a minimum degree of protection against external mechanical impacts of IK10. The body of charging stations excludes parts such as keyboard, leds, screens or vents. The degree of protection specified for the charging station does not apply during the reloading process.

6.2.3.2 Degree of pipeline protection. When the pipes are installed in a location subject to the risk of mechanical damage, such as areas of movement of electric vehicles, they shall have adequate resistance to mechanical damage. In such cases, the tubes shall have a minimum resistance to the impact grade 4 and a minimum resistance to compression grade 5. If protective channels are used, they shall present a minimum resistance IK08 to mechanical impacts.

In other driving systems that do not provide mechanical protection for cables, protection shall be ensured by the use of additional mechanical means, for example by using armed cables.

6.3 Over-intensity protection measures. The charging circuits, up to the point of connection, shall be protected against overloads and short circuits with omnipolar, curve C devices, sized according to the requirements of the (ITC) BT-22.

Each connection point must be protected individually. This protection may be part of the fixed installation or be within the SAVE.

In installations intended for load mode 1 or 2 in which the charging point is made up of current sockets conforming to the UNE 20315 standard, the automatic switch that protects each outlet must have an intensity a maximum of 10 A, even if an assigned intensity of 16 A may be used, provided that the manufacturer of the base ensures that it is protected by this automatic switch under the operating conditions laid down for the slow charging of the Electric vehicle with daily recharge of eight hours, at the intensity of 16 A.

In the installations planned for load mode 3 the selection of the automatic switch that protects the circuit that feeds the charging station will guarantee the correct protection of the circuit, avoiding at the same time the The invention also provides a method for the production of the recharging process. For your selection you can use the documentation of the station manufacturer as a reference. The tolerance of the signal corresponding to the load intensity, the internal consumption of the charging station itself and the environmental conditions of the installation, justify that the assigned intensity of the automatic switch is in some cases greater than the sum of assigned intensities that can be supplied by the charging station connection points.

6.4 Surge protection measures. All circuits must be protected against temporary and transient surges. Temporary surge protection devices shall be designed for maximum voltage between phase and neutral up to 440 V. Temporary surge protection devices must be suitable for maximum voltage between phase and expected neutral.

Transitional surge protection devices must be installed in the vicinity of the source of the installation or in the main control and control frame, as close as possible to the source of the installation. power in the building. Depending on the distance between the charging station and the transient surge protection device located upstream, it may be necessary to project the installation with a surge protection device. additional transient along with the charging station. In this case, the two transitional surge protection devices shall be coordinated with each other.

In order to optimize the continuity of service in case of destruction of the protective device against transient surges due to a lightning discharge of intensity exceeding the maximum expected, when the The protection device recommended by the manufacturer, upstream of the surge protection device, must be fitted with the object of protection against the surge protection device, the protection device recommended by the manufacturer must be installed. maintain the continuity of the entire system, thus avoiding the firing of the general switch.

7. Particular installation conditions

7.1 Land network for outdoor parking spaces. This paragraph applies both to the installation of charging points on public roads and to the installation in public parking spaces or parking lots.

The grounding installation will be performed in such a way that the maximum grounding resistance throughout the life of the installation and at any time of the year, cannot produce contact stresses greater than 24 V, on the accessible metal parts of the installation (charging stations, metal frames, etc.). Each charging pole shall have a grounding borne, connected to the general grounding circuit of the installation.

The conductors of the earth network that attach the electrodes may be:

Bare, copper, 35 mm² minimum section, if they are part of the earth network itself, in which case they will go outside the pipes of the power cords.

Isolated, by means of voltage cables of 450/750 V, with green-yellow coating, with copper conductors, of minimum section 16 mm². The protection driver joining each charging point with the electrode or the ground network shall be an isolated unipolar cable, of voltage assigned 450/750 V, with a green-yellow coating, and a minimum section of 16 mm² copper.

All connections of the earth circuits shall be made by means of terminals, staples, solders or appropriate elements that ensure good permanent contact and protection against corrosion.