Circular 31/2014/tt-Bct: Detailed Rules On Electrical Safety

Original Language Title: Thông tư 31/2014/TT-BCT: Quy định chi tiết về an toàn điện

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Number: 31 /2014/TT-BCT
Hanoi, October 2, 2014


Regulation of some content about electrical safety


The Power Law Base on December 3, 2004 and the Amendment Law, added a number of provisions of the Power Law on November 20, 2012;

Base of Protocol 14 /2014/ND-CP February 26, 2014 the Government regulates the Law of Electrical Safety Act;

Base of Protocol 95 /2012/NĐ-CP November 12, 2012 the Government regulates the functions, duties, powers, and organizational structure of the Ministry of Commerce;

At the suggestion of the Director of the Bureau of Safety and Industrial Environment;

The Minister of Public Works of the Ministry of Public Affairs provides detailed information about the safety of electricity.

Chapter I


What? 1. The adjustment range

The information provides details of some of the electrical safety content including: Safe, secure training, and an electric safety card level; connecting the housing's metal texture, the internal structure, and adjacent to the safety of the air grid safety lobby. The voltage from 220 kV to the electromagnetic avoidance chamber; the safety of the sea safely; the agreement when building housing, the building in the corridor protecting the safety of the high voltage power line, the electrical accident report, and the violations of the security corridor. High voltage grid.

What? 2. Subject applies

This information applies to organizations, individuals who have electric power and electricity use on Vietnamese territory, organizations, other individuals involved.

What? 3. Explain words

In this message the words below are understood as follows:

1. Operator, repair of electricity in rural, mountainous, border, sea island. is the worker of the power unit operating under the Co-operation Law, the scope of operations in the rural, mountainous, border, and insular areas.

2. Operator, experiment, build, repair of power lines or electrical equipment in the enterprise. is the labourers of the units: Power generation, electrical transmission, electrical distribution, electrical construction, electricity use to produce (have a separate transformation station) operating under the Enterprise Law.

3. Employers is either the law or the authorized person of the organizations, the individual, the direct unit that manages the worker.

Chapter II


What? 4. The object is safely trained, ranks and level the electrical safety card

1. The person who works the operation, the experiment, the construction, repair of the electrical wiring or electrical device in the enterprise, including the suspension, the removal, inspection, measurement of the measurement system, the counting of electricity; the degree of information.

2. The person who works the operation, corrects electricity in rural, mountainous, border, sea.

What? 5. Theory of Theorem

1. Joint Training Content

a) Map of the electrical system, the safety assurance requirements for the electrical system.

b) The organizational measure to ensure safety upon the conduct of the work: Survey, set up the current (if necessary); planning; registration of the work; organization of the work unit; work on a work order or a work order; the procedure for working; monitoring safety during the work period; the procedure ends work and closes the power back.

c) Technical measures prepare to work safely: cutting electricity and preventing the electricity from returning to work; testing is no longer electricity; land-based; barricades, suspension of signs, signs, signs of safe work zones.

d) How to recognize and measure the risk of causing incidents, accidents at the workplace and the method of separating the victim from the power source, the evacuation of people with an electric accident.

Feature, effect, usage, way of preservation, regulation of testing (experiments) safety devices, vehicles, tools that work in line with the work of the labourers.

2. The training content for the person who makes a specific job

a) To the person who works the operation of the power line, the electrical device

-To the power line:

+ Process processes, process of handling electrical wiring incidents;

+ Safety when: Check the power line; work on the electrical conducer line that has cut power or is carrying electricity; tight, trimping the tree in and near the corridors protecting the safety of the electrical wire; work on high.

-To the electrical device:

+ Operating Procedures, the process of handling the incident, the safety regulation for electrical equipment, power stations;

+ Safety when: Control of electrical equipment; put electrical devices in or out of operation; working with electrical devices, one-way electrical system;

+ Fire Department, fire for electrical power, power station.

b) To the person who works as a power build

-Safe when I dug, and poured out the hoses, and dug out the underground cables.

-Secure, fasten.

-Safe with strep, wire tension, lightning wire;

-It's safe to install an electrical device.

c) To the person who works the electrical experiment

-The operation process, the process of handling the incident, the safety regulation for the equipment of the test station, the laboratory; the organizational measure ensures safety when testing;

-Safety when conducting separate trials such as electric machine testing, voltage transplants, electrical transplants; the insulation of the electrical cable.

d) To the person who works repairing power lines, electrical equipment.

-For the conducer line: Safe when repairs on the power line have either cut power or are carrying independent electricity or in the area of influence of the other line operating;

-For electrical devices: Safe to work with each type of electrical device such as a transmor machine, a cutter, a generator, a high-voltage electric motor, a capacitor, a one-way electrical system.

For the worker to hang, remove, test, test the measurement system, count the power at the installation position.

Safe to hang, remove, test, test the system, count the power at the installed location when there is electricity or no electricity.

What? 6. Administrative Training Content

1. How to use, preserve, test, experiment on safety equipment, vehicles, tools that work in line with the work of the labourers.

2. The method of separating the person is electrocuated from the power source and the evacuation of people with an electrical accident.

3. The action content involved in ensuring the safety is consistent with the work of the worker.

What? 7. Training Organization

1. For the worker who rules at Clause 1 Article 4 This message, the employer is responsible:

a) Build the document and rule the time of training in accordance with the safety and position of the worker's work;

b) The choice of the trainer by regulation at paragraph 3 This is;

c) The organization of training, inspection, ranking and level of electrical safety cards for the worker after the examination is required. If the results of a theoretical test are not required, the actual part of the practice is not required.

d) Manage, monitor the training, rank and power card level at the unit.

2. For workers to stipulate at Clause 2 This April, the Department of Trade is responsible:

a) Building the document and regulates the time of training in accordance with the safety and job position of the operator, repair of electricity in rural, mountainous, border, sea;

b) The choice of the trainer by regulation at paragraph 3 This is;

c) The organization of training, inspection, ranking and level of electrical safety cards for the worker after the examination is required. Where the outcome of the theoretical or the practice is not required, it must be retrained not by the employer's offer.

3. The trainer

a) A theoretical trainer has to have a university degree that is consistent with the training industry and has at least 05 years of work experience in that industry.

b) The manager of the practice has an advanced, fluent, and has at least 05 years of experience working in line with the training industry.

4. Form and training time

a) First training: It is done when the new worker is recruited. Training time for the first time at least 24 hours.

b) recurring training: Years of execution. The training period is at least 8 hours.

c) Training again: When workers switch positions of work or change the degree of safety or there is a change of equipment, technology; when the test results of the worker do not reach a request or when the worker has been on the job for six months or more. Training time is at least 12 hours.

5. Specific conditions, employers may organize their own training in electrical safety based on regulatory content at this Privacy or in conjunction with the training of labor safety, labor hygiene, fire department fire, or other training. It's a law of law.

6. Cost of training, card-grade, paid by the employer.

What? 8. Global safety

The electrical safety level is divided into five steps, from 1 5 to 5/5.

1. Required for each electronic safety degree

a) For order of 1/5:

-First training results in theory and practice reach 80% or more;

-Know the general regulations to ensure safety when the work is delivered;

-Use and manage safety equipment, vehicles, tools that work properly.

b) For the order of 2/5:

-Know the common rules and safeguards when the work is delivered;

-Use and manage safety equipment, vehicles, tools that work properly;

-Know how to separate the victim from the power source;

-You know, the seizures are electrocued.

c) For order 3/5:

-Request as for quadrout.

-It's possible to detect violations, not safe behavior.

-Know how to check, supervising people working on wires or electrical devices.

d) For 4/5:

-Request as for a third of five.

-To understand the responsibility, the scope of the operation of every single task unit when the work is done;

-Knows the safety measures to carry out the work and organization monitoring, keeping track of work workers;

-Analyzing the incident, investigation of the incident, the electric accident.

5 5:

-Request as a 4/5;

-In coordination with other units of work, leadership of the work, the organization conducts safety measures and monitoring of the work.

2. The work is done in safety.

a) Step 1/5 is done with the following work:

-To be made non-contact with the device or wire carrying power;

-Join the work unit for the work unit on the electrical device, the power line.

b) Step 2/5 is done with the following work sections:

-Do the job part of the fifth.

-Working at the site was completely cut off.

c) Step 3/5 is done in the following work sections:

-Do the work of the order of 2/5;

-To work in the place of every part of the power;

-Working directly with the power line, the electrical power grid is on the grid.

-Perform the operation on a high-voltage grid;

-Check the power station, the power line is running.

-Direct command, direct command, allow units to work on work, monitoring unit work on the grid.

d) Step 4/5 is done with the following work sections:

-Do the work of the third quarter.

-Working directly with the power line, voltage-voltage, high-voltage power.

-Work level, work order, direct command, permit units to work, monitor the working unit on the power line, electrical device.

Five-fifth of all work is assigned.

What? 9. Power Safety Card

1. Level Card

a) The new level after the worker is first trained and checks to be required or when the worker converts the job.

b) The issuer when the worker loses, breaks the card.

c) The level of the amendment, the addition of the safety of the worker's safety.

d) The new, radical, radical, licensing of the specified worker cards at Clause 1 Article 4 This is no more than 5 working days, since the day the worker was first trained, recurring training, retraining, inspection at the request. Or the day that the employer receives the worker's text, which breaks down, loses the card.

Now, the new level, the emergency, the amendment level, the card plugin for the worker stipulated at Article 2 Article 4 This is no more than 10 days of work, since the day the worker is trained for the first time, recurring training, retraining, inspection at the request. Or the day the Company has received a written proposal by the employer whose employer is corrupt, loses the card. Employers who have employees of the employer stipulate in Clause 2 Article 4 This is responsible for sending 01 sets of applications recommended for training, granting a card to the Department of Commerce in direct form or via post office. The profile consists of:

-The user's offer of employment: The full name, the work and the current safety of the worker.

-2 photos (2x3) cm and the old electric safety card (if any) of the worker.

e) The card pattern by Annex I issued to this message.

2. Use the card

a) The shelf life: Since granted until the recall.

b) During the course of the work, the worker must carry and publish the electrical safety card at the request of the employer or of the inspectors, check out the electricity safety.

3. Card Capture

a) recall an electrical safety card when the worker moved into another job or did not continue to work at the organization, the former unit.

b) The recovery of the card due to the organization, the card level unit.

Chapter III




What? 10. Land Range

1. Power Level 220 kV: In and adjacent corridors protect the road safety of up to 25 m from the external or bottom line.

2. Electrical voltage of 500 kV: In and adjacent to the corridor security guard the line to 60 m from the external or bottom wire edge.

What? 11. The object must connect the land

1. Housing, construction of roofs made of insulation insulation with soil: Connect the roof. The metal structures under the roof do not have to connect the soil.

2. Housing, the building has roofs not made of metal: Conners all the metal structures with the ground like walls, walls, beams, beams, and doors.

3. Connect the land of insulated metal texture to the ground outside the housing, work such as the iron frame, the sun plate, the TV antenna, the exposure rope.

What? 12. Engineering

1. The ground-taking of the earth made of a diameter steel of no less than 16 mm or square steel has a comparable equivalent or angular steel of less than (40x40x4) mm; the length of the ground buried at least 0.8 m (in vertical direction), a protruding deposit. out of the ground (not as high as 0.15 m); the land deposit site is not caused to be an obstacle to people using housing, the work. Do not paint the insulation materials on the surface of the ground. In places that are prone to corrosion, land deposits must be plated or galvaned.

2. The ground wire can be made of a diameter circular steel that is no less than 6 mm or less smaller size (24x4) mm or a multi-fiber copper wire not less than 16 mm. 2 ; if the land cord made of steel then must be galvansted or painted in the rust.

3. The ground wire is tightly caught with the surface surface on the ground of the earth ' s surface and the metal texture that needs to connect the soil with bolts or welts.

4. The housing case, the building that has the land on the ground is being used, does not need to be able to put more ground on the ground, but just to get the cord to connect the land to the ground with bolts or welts.

What? 13. Land linking and management of land systems

1. Land Accountability

a) For the housing, the building before the construction of the high voltage grid, the owner of the high power grid was subject to all costs and installation of the land-based system.

b) For the housing, the work is behind the high voltage grid, the owner, the employer, the self-installation system, or the unit that manages the high grid operating system installed on the ground, and is subject to all costs.

2. Land Systems Management

The owner, who uses a housing legal, has a metal-connected structure that has to manage the land system. When detection of a damaged land system or an unusual phenomenon, the press release is immediately given to the management of the high voltage grid to coordinate the settlement.

Chapter IV


What? 14. Power Sea Taxation

1. The electricity safety signs are divided into the banned sea, warning signs and sea instructions, namely the following table:


The type and content of the sea


Sea Rule

(Image size and shape-drawing at this Annex II)


Sea ban


Don't climb! The high voltage is deadly.

Figure 1a, 1b

The border and the blinking of a bright red, white background, black letters.


Don't come in! The high voltage is deadly.

Figure 2


No closer! There's a deadly danger.

Figure 3


Don't do it! Someone's working.

Figure 4

The border is bright red, the white background, the black one.


Warning signs


Stop! Stop! There's a deadly danger.

Figure 5

The border and the blinking of a bright red, white background, black letters.


Power cable.

Figure 6

The border, letters and arrows are blue or black, 2 mm; white background.


The sea only leads


Work here.

Figure 7

The background in the background is green, the background in white, the black text.


In this direction.

Figure 8


The land.

Figure 9

The border and the black, the yellow background.

2. In addition to the electrical safety signs stipulated at this 1 Article, the organization, the individual can build signs with other content for internal use, in accordance with the work nature.

What? 15.

1. For the overhead high voltage conducer line, there must be a "FORBIDDEN CLIMB!" THE HIGH VOLTAGE IS DANGEROUS TO DEATH " on all columns of the line at altitudes between 2.0 m and 2.5 m above the ground to the visible side (Figure 1a or 1b Appendix II).

2. For the subway cable that does not use the same technical infrastructure with other types of pipes or cables, must place the "POWER CABLE" signage on the ground or on the milestone, in the position of a cable heart, visible and determined the cable in every position. The distance between the two adjacent signs is no more than 30 m (Figure 6 Annex II).

3. For the power station with the surrounding barrier, must set the sea " BAN ON! HIGH VOLTAGE RISK LETHAL " on the door or Gateway to the station (Figure 2 Appendix II).

4. For the power station hanging on the pole, the booking of the signage is made as specified for the upper high voltage power line.

5. For the closed-type system, the closed-air assembly station, the wiring closet (the Piliar) must set the sea " FORBIDDEN! THERE IS A DEADLY DANGER POWER " on the surface of the station on the visible side (Figure 3 Appendix II).

6. On the control department, the cut-cut device transmission has cut power for the working unit to fly the sea " BAN THE CONSTRUCTION! THERE ARE PEOPLE WORKING " (Figure 4 Appendix II).

7. On the barrier must set the sea " STOP! THERE IS A DEADLY DANGER POWER " on the visible side (Figure 5 Appendix II).

8. At the site where work has been located, if necessary: At the site of the sea-laying area "WORK HERE" (Figure 7 Appendix II); head to the "INTO THIS DIRECTION" (Figure 8), "CONNECTING LAND" (Figure 9). This is the fourth.

9. THE SEA BAN! HIGH VOLTAGE OF DEADLY DANGER "," BAN ON! HIGH VOLTAGE OF DEADLY DANGER, " NO CLOSER! THERE IS A DEADLY HAZARD " regulation at Article 14 This is possible to be painted directly or installed in the form of a sign that leaves the right place.

What? 16. Power safety alert.

The responsibility to set the signage at Article 15 This message is specified as follows:

1. (for the new construction site) or operation management unit (for the work that has put into exploitation, use) is responsible for placing the sea in accordance with the provisions 1, 2, 3, 4, 5, 7 Articles 15.

2. The operator of the operation is responsible for placing the sea by regulation at paragraph 6 Article 15 This message.

3. The direct command of the work unit or the person who allows the unit to work on the duty of the sea in accordance with the provisions of this Article 8 Article 15.

Chapter V.





What? 17. Agreement when building new or renovate housing, the work in the corridor protects the air power line on the air.

The agreement of safe safeguards in paragraph 2 Article 51 Power Law is carried out as follows:

1. Slowly after the 5 working days, since the date of receiving the recommended text of the building's owner, the high voltage grid operating management unit is responsible for sending text to the announcement theme for the time to conduct the site.

2. Survey of the site where construction is expected, renovation of the work and writing agreements with the work owner must be made in the 10-day period of work since the date received the proposed text.

3. The uncompromising case is secured by safeguards, the high voltage grid management unit must answer by writing stating the reason not to make a deal for the owner in the 5-day period of work since the date of the survey.

4. Content of the proposed text, the survey time text, the text of the agreement made by Annex III issued to this message.

What? 18. Reports of electric accidents and violations against the high voltage grid safety guard corridor

In addition to the implementation of the accident declaration by the law of labour, the high grid operating management unit reports the above agency (if applicable) and the Department of Commerce as specified at Point 1 Section 1 Article 17 digital decree 14 /2014/ND-CP It ' s as follows:

1. Power crash report

a) Time of reporting: Within 24 hours of the accident.

b) Content and form of the report: In the form at Annex IV issued by this message, sent by fax or email (PDF file).

2. A 6-month recurring report, annually

a) Time of reporting: By the time of June 5 and December 5 each year.

b) Content and form to report: According to the template at Annex IV issued by this message, sent according to the text and email (file word).

Chapter VI


What? 19.

1. This message has been in effect since November 18, 2014.

2. Repeal Digital 03 /2010/TT-BCT January 22, 2010, the Ministry of Commerce provides some content on the safety grid of the high voltage grid, and the number decision. 34 /2006/QĐ-BCN September 13, 2006, of the Ministry of Industry, the Ministry of Industry issued a regulation on grid safety grid safety techniques.

3. transition regulation

a) The electrical safety signs have the same content but different in terms of the regulation with the signage specified at 1 Article 14 This message must be replaced before July 1, 2016.

b) For the operator of the operation, repair of electricity in rural, mountainous, border, the island has been granted a safety card according to the Digital Decision 34 /2006/QĐ-BCN September 13, 2006, of the Minister of Industry, the employer is responsible for listing and offering the Department of Training, the prescribed electricity safety card at this Smart, to replace the previous card; the time of execution before the end of the year. December 31, 2015.

What? 20.

1. The head of the department's subordinated units, the People's Committee of the Provinces, the Central City, and the organizations, the relevant individual responsible for the organization.

2. The Department of Public Safety and Environmental Services is responsible for guidance, inspector, examination of this information on the country.

3. The Department of Public Affairs is responsible:

a) Build a training plan, test, rank, seat safety card level, and inform organizations, individuals, units that have rules on Article 2 of this Article 4;

b) Guider, inspector, check out this Information implementation on the site of the management range;

c) Statistics, monitoring of electric accidents, violations of the high voltage grid safety lobby on the site and reports of the Department of Commerce (through the Department of Public Safety and Environmental Services) at the time of June 15 and December 15 each year.

4. In the course of the execution, the case is involved in the proposal of organizations, individuals who reflect on the Ministry of Commerce for review, resolve.



The Supreme.