Rules For The Latvian Et Seq Of The Lbn 261-15 "building Internal Wiring"

Original Language Title: Noteikumi par Latvijas būvnormatīvu LBN 261-15 "Ēku iekšējā elektroinstalācija"

Read the untranslated law here:

Cabinet of Ministers Regulation No. 294 in Riga on 9 June 2015 (pr. No 28 20. §) rules on the Latvian et seq of the LBN 261-15 "" internal wiring of buildings Issued in accordance with article 5 of the law on construction of the first part of paragraph 3 of rule 1 et seq of Latvia confirmed the LBN 261-15 "building" the internal wiring. 2. The Ministry of economy in cooperation with the relevant technical standards Committee recommends that national bodies for standardisation in relation to these provisions, the reliance and designing standard applicable list. 3. National standards institution Web site publishes the list of Latvian National standards which are applicable in the Latvian et seq of the LBN 261-15 "internal wiring of buildings". 4. Projects which are developed in or submitted to the būvvald reconciliation rules for the entry into force of the corresponding period in the normative requirements need not be processed according to the Latvian et seq of the LBN 261-15 "internal wiring of buildings". The Prime Minister is the Rapidity of economic Newsletters, Minister Dana Reizniec-oak approved by Cabinet on 9 June 2015 regulations no 294 Latvian et seq of the LBN 261-15 "building internal wiring" i. General questions 1 et seq of the guideline requires (up to 1 kV) design and installation to ensure human and environmental protection against electric current, lightning and lightning discharge surge current caused by shocks, fires, explosions (explosion), burns and electric powered car an unexpected movement of the motor as well as to ensure the functioning of the guideline according to the intended purpose. Et seq does not include detailed technical requirements, which change the modification of technical progress. 2. the terms used in the et seq: 2.1. normal operating mode-working conditions for which the equipment or installation; 2.2. normal operating mode-working conditions, which are different from those for which the equipment or installation (for example, environmental conditions, voltage, mechanical or electrical load); 2.3. the lightning protection system, a unified system for the building of its parts, the guideline, and other objects of protection against lightning and direct effect which includes external and internal lightning protection, as well as the surge protection device. 3. Et SEQ apply to: 3.1 AC power circuits with a nominal voltage up to 1000 V (included) or DC power circuits with a nominal voltage of up to 1500 g (inclusive); 3.2. the apparatus for internal wiring to outsiders chains, a voltage greater than 1000 V, and part of the structure of a power not exceeding 1000 V AC voltage supply; 3.3 wiring that does not fit into the device; 3.4. electrical protection systems; 3.5. the horizon outside the buildings directly to the implementation of related buildings; 3.6. fixed electronic communications, signalling and control circuits, excluding internal wiring of apparatus; 3.7 lightning protection and surge protection of buildings. 4. Et SEQ does not apply to: 4.1 rail and electric transport facilities (including rolling stock and signāliekārt); 4.2. the car (including the battery), electrical equipment, ships and aircraft; 4.3. appliances in mines, as well as mobile and fixed offshore platforms; 4.4. radiointerferenc damping of equipment (other than equipment, associated with the safety of the installations); 4.5. electrical shepherds (fences). 5. the internal wiring of the building project in accordance with this and other et seq regulations in the field of construction. 6. the internal wiring of the building design standards which are applied in the list at the Web site is published by the national standardization bodies. II. Basic requirements

7. The implementation of the project, shall be provided and check the appropriate būvspeciālist if other laws and regulations unless otherwise specified. 8. The implementation of the project and arranged so as to ensure the safe use and to avoid the risks of fire, explosions, people and pet health and life threatening shock, burns or other forms of risk. 9. Designing, implementation takes into account information on the available power supply: 9.1. power; 9.2. the power driving the type and number of nutritious in the grid system; 9.3 power failure protection measures used, the grounding system; 9.4. the electrical supply to the specific requirements of the company; 9.5. voltage and voltage deviation (this 1 et seq., annex tables 1 and 2); 9.6. the frequency and the frequency deviation; 9.7. maximum permissible power strength; 9.8. expected short circuit current; 9.9. the duration of the blackout. 10. Elektroapgaism, supply, management, alarm, electronic communication and other needs required electrical circuit number and type of fixed taking into account: 10.1. disposition of electrical loads; 10.2. the various chains expected loads; 10.3. the load variability of day and year; 10.4. the ambient conditions; 10.5. the requirements for the control, signalling, electronic communications and information technologies; 10.6. various special conditions. 11. The design of the emergency power supply, identify: 11.1. emergency source of electrical supply feed chain; 11.2. sources of supply (type, characteristics); 11.3. the conditions to be complied with to prevent the incorrect voltage supply to various sources connected circuits. 12. Electrical equipment shall be so arranged that: 12.1. should have enough space for the electrical equipment for the initial installation and replacement of certain elements for later; 12.2. free access to electrical equipment operation, inspection, inspection, service and repair. The minimum distances of operating and servicing the routes determined in accordance with this annex 2 et seq. 13. Electrical equipment must be suitable for nursing network maximum stable voltage (effective value of AC voltage supply) and expected surges. 14. Electrical equipment to ensure the highest possible long-term power flow into the machine during normal operation as well as time--the power flowing the plant during normal operation (for example, protection devices). 15. If the electrical characteristics are dependent on the frequency, electrical nominal frequency must correspond to the frequency, a potential chain. 16. Electrical power characteristics to ensure its intended tasks during normal operation, taking into account the capacity factor. 17. the level of fire protection of electrical equipment must be such as to withstand foreseeable mechanical and electrical load, as well as the environmental conditions that are specific to the place of installation (annex 3 of this et seq). 18. Electrical equipment that does not meet the following performance installation location environmental conditions may be provided and be used only if using adequate protection, ensuring normal operation of electrical equipment in accordance with the installation and operation of the technical provisions. 19. Electrical equipment during normal operation (including switching operations) must not interfere with other electrical equipment or worsen the power supply. 20. The power driving the cross-sectional area is chosen, taking into account: 20.1. Power Manager permissible maximum temperature (this et seq 4. table 1 of the annex); 20.2. the permissible voltage drop; 20.3. expected electromechanical loads and other mechanical load, the power manager can be exposed in the event of short circuits; 20.4. the maximum full resistance required to ensure zemesslēgumaizsardzīb and īsslēgumaizsardzīb for proper operation. 21. Minimum cross-sectional area of conductors shall be determined in accordance with this annex 4 et seq 2. table. The cross-sectional area of the Zemētāj and aizsargvadītāj of the minimum cross-sectional area shall be determined in accordance with this annex 4 et seq tables 3 and 4. 22. to ensure that the system is more economical arrangements, can be applied to larger cross-sectional area than needed for security. 23. Wiring and installation methods is dependent on: 23.1. the installation site (e.g. space, building, area) forest fire and explosion; 23.2. installation for wall or other part of the building characteristics; 23.3. human and pet access wiring; 23.4. voltage; 14.6. the forthcoming elektromehāniskaj loads in the event of short circuits; 14.7. other stresses (e.g. mechanical, heat, open flame-related stress), which the wiring may be subjected to its installation or during operation. 24. the classification and characteristics of Space by choosing the type of wiring and installation methods, determined according to annex 3 of the et seq. 25. Protection device characteristics are chosen based on their intended task, which can be a protection against: 25.1. pārstrāv (overload or short circuit current); 25.2. zemesslēgum power or surges; 25.3. voltage reduction or disappearance; 25.4. lightning current and surge. 26. Protection devices must be activated when you reach a certain power, voltage and time values corresponding to the relevant characteristics of the chains and the degrees of danger. 27. According to the applicable standards for the implementation of specific requirements applicable in the following locations: rooms with bath 27.1 or shower; 27.2. swimming pools and other basins; 27.3. where a sauna heater; 27.4. construction sites; 27.5. agricultural and horticultural areas; 17.1. the spaces with the delimitation of the strāvvadoš; 17.2. residential caravans and stāvlaukumo; 17.3. amusement parks, fairs, shows and stalls; 17.3. outdoor lighting devices; 27.10. ceiling and floor heating systems; 27.11. fire and explosive areas, buildings and areas. 28. Where necessary the immediate interruption of the power supply to prevent the risk of persons or property shall be easily visible, effective and fast down the driven device. 29. the service, inspection, or repair the damage discovery expected to mute the device, which enables you to turn off the implementation chain or individual machine elements. 30. the Implementation shall be so arranged that, in the implementation between the different buildings and electrical appliances not avoid mutually negative impact, taking into account their electromagnetic compatibility. III. installation Guideline

31. every single electrical equipment used, the implementation must meet the relevant requirements of the applicable standard. If the individual installation applicable standards are not defined, this machine chosen by agreement between the customer and the installer. 32. in accordance with the electrical equipment used for protection against electric shock shall be classified in accordance with this annex 5 et seq. 33. Guideline used in the installation of suitable materials. 34. When installing the equipment, to achieve a secure contact (circuit elements electrically connected to a sufficiently small and stable transition resistance) connections between conductors, as well as between conductors and electrical equipment. 35. Installing the implementation may not impair the electrical parameters and cooling conditions provided for them. 36. People and pets from direct contact with spriegumaktīv to protect the parts of the installation by using one of the following methods: 36.1. prevent power flowing through the body of a human or pet; 36.2. limit the power flowing through the body of a human or pet to a value that is less than the allowable electrical shock value. 37. People and domestic animals protects against accidents arising from indirect contact (with the parts of the structure that controls the power and, under normal conditions, not spriegumaktīv, but spriegumaktīv can become insulation damage, short circuit or other accident), using one of the following methods: 37.1. prevents damage to current flow through the human body or pets; 37.2. the limited damage to the current that flows through the body, up to a value that is less than the allowable electrical shock value (potential equalization); 37.3. relevant standards applicable within the time automatically interrupted power supply, if there is a defect that can cause current to flow through the body, which is in contact with the exposed parts of the strāvvadoš, if the current value is equal to the permissible limit for electric shock value or more for it. 38. The implementation shall be so arranged as to prevent ignition of combustible materials the risk of high temperature or electric arc, as well as the outbreak of fire and explosion explosive zones and burn risk to humans and pets. All electrical equipment that can cause high temperature or electrical arcs, protected or placed at a safe distance to prevent ignition of combustible materials option. If the electrical part of the detected temperature may cause injury to people, then this part of the protected or placed at a safe distance to prevent accidental contact with them. 39. A series away part of the available electrical temperature limit during normal operation may not exceed the 6 et seq. referred to in table 1 of the annex. 40. the man and the environment protected against accidents resulting from high temperatures or electromechanical loads caused by the spriegumaktīvo of pārstrāv conductors using one of the following methods: 24.9. automatically turns off the pārstrāv before it reaches dangerous values, taking into account the duration of the flowing pārstrāv; 40.2. the maximum limit for safe power pārstrāv to the value and duration of the flow. 41. Electrical parts that run power, and under normal circumstances is not spriegumaktīv, but which may damage the power (especially zemesslēgum's power and leakage currents) flowing, be able to drive this current does not reach a dangerously high temperature. IV. installation of lightning protection lightning protection system provides 42. to prevent lightning effect of electric and electronic equipment, as well as the surge of the risks for the parts of the building and to human life. Lightning protection system designed and installed by ensuring this building's lightning protection set out in et seq level or under applicable standards. 43. Lightning protection system are divided into classes, describing the probability with which the zibensstrāv parameter set of the possible values of the observed natural lightning does not exceed this maximum and minimum of the parameter estimates. Set of four lightning protection system class, which provides the building lightning protection level amounting to: 43.1.  Class I – 98%; 43.2. Class II – 95%; 43.3. Class III-90%; 43.4. class IV – 80%. 44. Lightning protection necessarily made for the third group of buildings. In other cases the installation of lightning protection need to be fixed, taking into account the characteristics of the building and risk criteria laid down in the applicable standard EN 62305-2: EN 2012 "lightning protection. Part 2: Risk Management (IEC 62305-2:2010, modified) ". 45. Class I lightning protection system provides: 45.1. air traffic control building; 45.2. highly flammable liquid (flash point below 55 ° c) storage and production buildings; 45.3. ammonium nitrate and other explosive storehouses, and other buildings with potentially explosive environment; 28.2. elevators and other facilities for the storage of bulk substances – in rooms that ugunsslodz is greater than 1200 MJ/m2; 28.3. industrial production buildings, in which more than 1200 ugunsslodz MJ/m2; 45.6. the chemical and oil chemical processing plant in explosive zones; 28.4. buildings with combustible gas equipment intended for a building's heating, installing the equipment this explosive zones of buildings; 28.5. radioactive and hazardous waste storage facilities. 46. at least II class lightning protection system provides: 46.1. hospitals; 46.2. the maternity homes; 46.3. the water parks and pools open; 46.4. information technology, controller and other control centres (including the waterworks dispatching centres in); 46.5. the gas station buildings except customer service building; 46.6. burning liquid (flash point is greater than 55 ° c) storage; 29.0. chemical and oil chemical processing plant buildings and areas which have not been defined in paragraph 45 of this et seq; 29.1. wind generators; 46.9. telesignalizācij towers, telecommunication towers; 46.10. biogas plants. 47. at least class III lightning protection system provides: 29.3. residential buildings; 47.2. in buildings intended for housing; 47.3. in buildings that are used 24 hours a day and staying at reliant or isolated users, and which are not mentioned in this paragraph of the 46 et seq; 47.4. the measures to public buildings; 29.5. schools and educational institutions; 29.6. the airport passenger terminals; 29.6. the closed basin of the buildings; the design of the buildings from 47.8. flexible housing; 29.8. the protection of monuments exposed buildings with historical importance or cultural objects for storage buildings; 47.10. buildings, which are typically used in the day and resident users, who are familiar with the area, and which are not mentioned in this paragraph of the 46 et seq; 47.11. industrial production buildings, which reside in the users, who are familiar with the area, and which are not mentioned in the 45 and 46 of this et seq.;. 47.12. and more than two two-storey garage surface parking lots, including built-in. 48. Lightning protection system can not fix up buildings that are completely located in another building lightning protection zone established under applicable standards. 49. Two or more buildings that are interconnected (būvtehnisk and functional) requirements for lightning protection level is flat, and lightning protection level to provide them under the building, which the lightning protection system of the highest class. 50. Building which corresponds to the number of buildings listed in this et seq uses for lightning protection level must be provided, as appropriate to the purpose for which a higher set of lightning protection system class. V. the Guideline making installation work

51. Guideline for installation work shall be adopted by the contractor or the owner of the distribution network according to the intentions of the construction documentation, subject to the regulations and standards applicable to the relevant implementation. 52. The implementation of signed distribution in comparison with construction after conception and then installed the documentation system and the grid parameter checks. Electrical checks before their commissioning, and after significant changes, to ensure that work is carried out according to the respective et seq and the applicable standards. 53. The buildings, which contain implementation, adopted into service in accordance with the laws and regulations in the field of construction. Acceptance report shall be accompanied by the following documents to the Protocol (if the work is made): 53.1. autoruzraudzīb adjust the order of construction intentions in a set of drawings of the documentation and detailed drawings; 53.2. passport of equipment and materials used in the attestation of conformity; 53.3. cover the adoption of legislation in the works for installation of the guideline; 53.4. approved opinions on the wire and cable for electrical resistance test, a full electrical resistance measurement loop "phase-zero", on the ground of the edge leakage check electrical resistance and for the links between the electrical resistance test zemētāj and sazemējam elements; 13. automatic adjustment installations and electrical circuit diagrams; 53.6. system description of use and safety instructions; 53.7. staff training protocols on system operation. 54. The implementation of prior to their adoption into service check the insulation resistance. Guideline for electrical insulation resistance the minimum value of this annex 6 et seq 2. table. Economy Minister Dana Reizniec-oak annex 1 et seq of Latvia LBN 261-15 for "internal wiring of buildings" (approved by Cabinet of Ministers on 9 June 2015 by Regulation No. 294) Guideline of voltage class of Guideline 1 class under AC voltage supply rated voltage specified in table 1. AC voltage supply range (effective value) table 1 class directly in the ground system to land directly connected between phases of the system between phase and Earth between phases I U