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MINISTRY OF
INDUSTRY AND TRADE
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SOCIALIST
REPUBLIC OF VIETNAM
Independence – Freedom – Happiness
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No.
39/2020/TT-BCT
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Hanoi,
November 30, 2020
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CIRCULAR
INTRODUCING THE
NATIONAL TECHNICAL REGULATION ON ELECTRIC SAFETY
Pursuant to the Law on Technical Standards and
Regulations dated June 29, 2006;
Pursuant to the Government's Decree No.
98/2017/ND-CP dated August 18, 2017, defining the functions, tasks, powers and
organizational structure of the Ministry of Industry and Trade;
Pursuant to the Government's Decree No.
127/2007/ND-CP dated August 1, 2007, elaborating and providing guidance on the
implementation of a number of articles of the Law on Technical Standards and
Regulations, and the Government's Decree No. 78/2018/ND-CP dated May 16, 2018
on amendments and supplements to the Government's Decree No. 127/2007/ND-CP
dated August 1, 2007, elaborating and providing guidance on the implementation
of a number of articles of the Law on Technical Standards and Regulations;
Pursuant to the Government’s Decree No.
14/2014/ND-CP dated February 26, 2014, elaborating on the implementation of the
Law on Electricity in terms of electric safety, and the Government’s Decree No.
51/2020/ND-CP dated April 21, 2020 on amendments to several Articles of the
Government’s Decree No. 14/2014/ND-CP dated February 26, 2014, elaborating on
the implementation of the Law on Electricity in terms of electric safety;
Upon the request of the Director of the
Industrial Safety Techniques and Environment Agency;
The Minister of Industry and Trade herein
promulgates the Circular introducing the National Technical Regulation on
electric safety.
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Reference number: QCVN 01: 2020/BCT
Article 2. Entry in force
1. This Circular shall enter into force as from
June 1, 2021.
2. The Decision No. 12/2008/QD-BCT dated June 17,
2008 of the Minister of Industry and Trade, introducing the National Technical
Regulation on Electric Safety QCVN 01:2008/BCT, shall be invalidated from the
effective date of this Circular.
Article 3. Implementation
1. Ministers, Heads of Ministry-level agencies,
Heads of Governmental bodies, Presidents of People’s Committees of
centrally-affiliated cities and provinces, other organizations and individuals
involved shall be responsible for enforcing this Circular./.
2. In the course of implementing this Circular,
should there be any issue that arises, persons and entities may send timely
feedback to the Ministry of Industry and Trade to request its review and
action./.
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QCVN 01: 2020/BCT
NATIONAL TECHNICAL
REGULATION ON ELECTRIC SAFETY
Foreword
QCVN 01:2020/BCT replacing QCVN 01:2008/BCT is
appended to the Decision No. 12/2008/QD-BCT dated June 17, 2008 of the Minister
of Industry and Trade.
The full text of QCVN 01:2020/BCT is composed by
the Commission on Writing of National Technical Regulation on Electric Safety;
is submitted for approval by the Industrial Safety Techniques and Environment
Agency; is reviewed and made available for use as appended to the Circular No.
39/2020/TT-BCT dated November 30, 2020 of the Minister of Industry and Trade.
NATIONAL
TECHNICAL REGULATION ON ELECTRIC SAFETY
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1. Scope
This Regulation deals with safety precautions for
the construction, operation, business, testing, inspection and repair of
electrical lines, electrical equipment and other types of work according to
regulatory provisions.
2. Subjects
This Regulation applies to all organizations and
individuals engaged in electricity activities and using electricity for
production in the territory of Vietnam.
3. Interpretation
For the purpose of this Regulation, terms used
herein shall be construed as follows:
3.1. Operator is an entity directly managing
and operating electricity facilities.
3.2. Contractor is an entity that repairs,
tests, inspects, builds, commercially uses and performs other works related to
electricity facilities.
3.3. Safe work zone is an area where safety
precautions for people and equipment working inside have been established.
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3.5. Work director is the person responsible
for general management of the work performed by multiple contractors under the
same electricity entity.
3.6. Direct supervisor is the person who is
responsible for assigning, instructing and overseeing a contractor’s staff
while they are at work.
3.7. Permission giver is the person who
carries out the procedures required to allow a contractor to enter a work site
where electric safety has been ensured.
3.8. Electric safety superintendent is the
person having electrical safety knowledge who is appointed to supervise
electric safety for a contractor.
3.9. Lookout is the person who is appointed
to watch out for and alert any workplace safety issue that poses threats to the
local community.
3.10. Contractor’s staff is an employee of a
contractor who directly performs the work assigned by the direct supervisor.
3.11. Order assignee is someone working on
their own according to a work order.
3.12. Work(ing) live is the act of working
on energized parts which is conducted by using dedicated tools and equipment.
3.13. Work(ing) dead is the act of working
on parts which are de-energized in all directions.
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3.15. De-energize (de-energization) or power cut
is an act of isolating an energized part from the electric supply.
3.16. Electricity facility (project) is a
complex of means, machines, equipment and buildings directly supporting the
generation, transmission, distribution, dispatch, sale and purchase of
electricity; electricity facility protection systems; electrical grid safety
corridors; land used for electricity and other auxiliary facilities.
3.17. High voltage is voltage which is 1000
V or above.
3.18. Low voltage is voltage which 1000 V or
below.
II. TECHNICAL
PROVISIONS
II.I. Working with
de-energized parts
4. Steps in taking
safety precautions before carrying out the work
4.1. Turn off electricity and take measures to
prevent power from returning.
4.2. Check whether electricity absolutely goes out.
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4.3.1. The operator connects the earth to create a
safe work zone before handing over the work site.
4.3.2. The contractor sets the additional earth in
place in the worksite if necessary to perform the work.
4.4. Set up barricades and put up safety signs:
4.5. Apply other necessary safety precautions
subject to the contractor's decisions.
5. Numbering
equipment
Electrical equipment and lines must be clearly
labeled and reference-numbered.
6. Making or
breaking circuits to equipment
6.1. Using isolators for making or breaking load
currents is prohibited, except for load isolators which are allowed to perform
on-load making or breaking functions according to the manufacturer's
instructions).
6.2. When operating isolators, it is obligatory to
ensure that electrical lines have no load.
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7. Interlock
circuits
After turning switchgears to the off position, the
worker must:
7.1. Lock the actuator, control circuit and
interlock of each switchgear.
7.2. Put up the safety sign.
7.3. Assign a lookout (where necessary).
8. Releasing
residual charges
8.1. It is obligatory to dump residual charges
(where necessary) and install portable earths before performing works.
8.2. The procedure for dumping residual charges
must be carried out in the normal operating state by using occupational safety
and health equipment.
9. Checking that
there is no electricity
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9.2. In case a de-energized circuit lying near or
passing over or under a live high-voltage circuit, induced voltage must be
checked with a voltage tester. When induced voltage is detected, the contractor’s
staff must report to the direct supervisor. The direct supervisor must give
additional safety precautions and/or appropriate instructions to ensure the
safety of the contractor’s staff, such as carrying out the earthing procedure
and prohibiting the work from being carried out until these additional safety
precautions have been taken.
10. Protecting
against backfeeding
10.1. A portable earth must be installed to prevent
the reverse current flow to the worksite from the secondary side of the
transformer or other low-voltage supplies.
10.2. When cutting off electricity in low-voltage
lines, measures must be taken to prevent electrical backflow to lines from
other standalone power supplies.
11. Several
regulations on installation and disconnection of portable earths at worksites
11.1. The contractor shall install and disconnect a
portable earth according to the direct supervisor’s instructions.
11.2. Once multiple contractors perform the works
related directly to each other, each of them must install a separate portable
earth.
11.3. A contractor can temporarily disconnect a
portable earth to serve the purpose of carrying out their necessary works by
order of the direct supervisor, and must reconnect the earth immediately after
completion of such works.
11.4. When installing and disconnecting a portable
earth on the high-voltage grid, the contractor’s staff must use suitable
insulating poles and gloves; when installing and disconnecting a portable earth
on the low-voltage grid, they must wear low-voltage insulating gloves.
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11.6. When installing a portable earth, an end
driven into the ground is installed first and the other end attached to the
conductive part is installed later. Meanwhile, a portable earth can be
disconnected in reverse order.
12. Applying safety
engineering precautions when different contractors are working on the same
electricity facility project
12.1. When working on an electricity facility
project executed by different contractors, each contractor shall be required to
take separate safety engineering precautions.
12.2. There must be identification signs that help
distinguish contractors’ staff according to their scope of activities.
II.II. Working near
energized parts
13. Electric safety
distances
13.1. When there is no temporary barrier, the
electrical safety distance shall not be less than the values specified in the
following table:
Voltage level
(kV)
Electric safety
distance (m)
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0.70
From greater than
15 to 35
1.00
From greater than
35 to 110
1.50
220
2.50
500
4.50
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Voltage level
(kV)
Electric safety
distance (m)
From 01 to 15
0.35
From greater than
15 to 35
0.60
From greater than
35 to 110
1.50
220
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500
4.50
13.3. When failing to meet the electric safety
distance specified in 13.1, or being unable to build a barrier defined in 13.2,
power cut is required before performing a work.
14. Requirements of
temporary barriers
14.1. Installation of a temporary barrier shall be
decided prior to commencement of a work.
14.2. Requirements of a temporary barrier:
14.2.1. It is made of solid materials.
14.2.2. It is not inclined towards energized parts.
14.2.3. The distance requirement of a barrier set
out in 13.2 herein must be satisfied.
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15. Designation as
a safe work zone
Before working near an energized part, the operator
shall be responsible for providing space for the contractor to work as follows:
15.1. Requirements for establishment of a safe work
zone:
15.1.1. Energized parts near that safe work zone
are not interrupted.
15.1.2. In case of any accident, incident or
emergency that occurs, the contractor's evacuation is not hindered or
encumbered.
15.2. The operator and the contractor cooperate in
defining boundaries of a safe work zone.
15.3. A temporary barrier is installed or proper
measures are applied in order to enable the contractor to visually pinpoint the
boundaries of a safe work zone.
15.4. Handover of a safe work zone is required.
16. Taking over and
working inside safe work zones
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16.2. While at work, the contractor shall be
prohibited from:
16.2.1. crossing the boundaries of the safe work
zone that the operator has designated and handed over to the contractor.
16.2.2. transposing or removing barriers, signs and
signals used for identifying the safe work zone and safety precautions that the
operator has set up.
17. Cautions
In dangerous areas and areas where electrical
devices are installed, appropriate barriers, signs and signals must be placed
to warn of danger.
18. Outdoor
electrical equipment
For outdoor high-voltage electrical equipment, the
following safety precautions must be taken to prevent unauthorized persons from
entering the restricted area:
18.1. Safety perimeters, barriers, enclosures or
other precautions.
18.2. “No entry” signs or signals placed at
entrance or exit ways.
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19. Indoor
electrical equipment
For indoor high-voltage electrical equipment,
appropriate measures must be taken to prevent unauthorized persons from coming
near such equipment.
20. Lighting for
working locations
Proper illumination defined in applicable
regulations shall be maintained at the place of work.
21. Warnings at
worksite
Contractors shall put up safety warning signals in
dangerous areas during the working period to ensure the safety for their staff
and community.
II.III. Working
with energized parts
22. Preconditions
for working live
22.1. To work live, the competent authority’s
consent should be obtained.
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22.3. Work plans and safety precautions must be
approved before use.
22.4. Procedures for carrying out works shall be
designed according to applied technologies.
23. Safety
conditions for working live
23.1. When working with energized parts, safety
equipment, tools or means must be available for use.
23.2. It is obligatory to check that metal
structures in the worksite that workers may contact must be de-energized.
23.3. When working on or near energized parts, the
contractor’s staff is not allowed to wear any jewelry or carry metal personal
items.
23.4. When working live, the contractor’s staff
must identify the nearest live part from their working location.
24. Safety
precautions for working with low voltage
Requirements applied to the contractor’s staff:
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24.2. Cover energized parts to get rid of risks
likely to cause danger (if necessary).
25. Safety
precautions for working with high voltage
25.1. When working with high voltage, i.e.
inspecting, repairing and cleaning live parts or insulators (or other
insulating materials), the contractor’s staff must use equipment and tools
designed to work live, in which case the minimum permissible distances between
them and other surrounding live parts (if not insulated) must correspond to the
working voltage levels of circuits specified in the following table:
Grid voltage
level (kV)
Minimum
permissible distance (m)
From 01 to 35
0.6
From greater than
35 to 110
1.0
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2.0
500
4.0
25.2. When transposing metal tools or components to
utility poles, it is obligatory to ensure that they do not come close to
conductors within the distance specified in 25.1.
26. Using
protective shields
When working with a grid with voltage up to 35 kV
where the distance between the conductor and the utility pole is smaller than
that specified in 25.1, working at the pole body with protective shields made
of insulating materials is allowed.
27. Reinforcement
prior to working live
Repair of an electrical line without power cut is
allowed only when the solidity and durability of the conductor and utility pole
are completely trusted. Where it is discovered that the utility pole is unsafe,
it must be reinforced before performing the work.
28. Equipotential
working
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28.2. While standing on insulating equipment having
equipotential connection to the conductor, exchange of anything that could
cause loss of equipotential is prohibited.
28.3. A worker’s motions on insulating equipment
are prohibited after he/she has had equipotential connection to the conductor. Entry
or exit of the contractor’s staff into/from the working part of insulating
equipment is allowed only after he/she is at the minimum distance specified in
the table below from the conductor, and only after his/her equipotential
connection to the conductor has lost.
Voltage level
(kV)
Minimum
distance (m)
Up to 110
0.5
220
1.0
500
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III. MANAGEMENT
REGULATIONS
III.I. Operators
29. Powers and
responsibilities of operators
29.1. Safely manage and operate electricity
facilities in accordance with regulations in force.
29.2. Authorize contractors to enter the worksite.
29.3. Check, monitor and detect unsafe situations
to take timely actions.
29.4. Suspend the contractor’s work if continuation
in such work causes safety risks.
III.II. Contractors
30. Organization of
a contractor
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30.2. The contractor’s staff may come from
different organizations provided that an organization or individual bears main
responsibility, and an agreement between the parties involved is made.
30.3. Simple works requiring no safety precaution
are allowed to be performed by the single-person contractor.
31. Designating a
direct supervisor and the contractor’s staff
Entities and persons shall be responsible for
designating the direct supervisor and the contractor’s staff suitable for the
works, having professional qualifications and competencies in performing the
works in a safe manner.
32. Designating an
electric safety superintendent
32.1. The operator shall be responsible for
designating the electric safety superintendent when the contractor does not
have expertise in electricity or lacks professional qualification in electric
safety.
32.2. The contractor shall be responsible for
designating the electric safety superintendent who supervises the works
involving extreme electric dangers (e.g. hotline repairs).
32.3. In other cases, the contractor may negotiate
with the operator about designation of the electric safety superintendent.
33. Appoint a work
director
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III.III. Worksite surveys
34. Works requiring worksite surveys
34.1. Worksite surveys shall be applied to the
works, including but not limited to the following:
34.1.1. Works performed according to plans.
34.1.2. Works performed at the sites that involve
dangerous elements, which may cause accidents to persons participating in the
works, or to the community.
34.2. For the works not mentioned in 34.1, the
operator/contractor can decide whether a site survey is conducted.
35. Worksite survey
responsibilities, questions and findings
Contractors shall be responsible for leading and
cooperating with operators in conducting worksite surveys.
III.IV. Designing
electric safety precautions in work plans
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They are the works requiring worksite surveys as
defined in Article 34 herein.
37. Responsibilities
for designing electric safety precautions in work plans
Contractors shall take responsibility for leading
and cooperating with operators on design of electric safety precautions in work
plans.
38. Main contents
of electric safety precautions in a work plan
Main content of electric safety precautions in a
work plan includes (but not limited to) the following:
38.1. Name of the work.
38.2. Permitted area of work.
38.3. Hazards at the worksite, measures to prevent
and ensure safety for participants in works and the community at the worksite;
In case it takes a lot of days to perform the work, the parties concerned shall
reach an agreement on this.
38.4. Personnel arrangement.
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39. Approving and
revising or updating electric safety precautions included sin work plans
39.1. Electric safety precautions included in a
work plan must be approved by the operator before commencement.
39.2. Revising and updating electric safety
precautions in a work plan (without changing the main content) must be agreed
upon and notified to the relevant units by both parties.
III.V. Registering
works
40. Planning and
registering works
40.1. The contractor cooperates with relevant units
(the operator or other contractor) on formulation of a work plan corresponding
to the work content and sequence.
40.2. The contractor is obliged to register a work
plan with the operator in accordance with regulations in force.
40.3. The operator registers power cut in
accordance with regulations in force, and notifies this to the contractor.
41. Cancelling or
rescheduling works due to weather-related issues
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41.2. In case of rain, fog or inundation, all
outdoor works are prohibited.
III.VI. Work
requests or orders
42. Work requests
42.1. A work request is a permit document that
allows works with electrical equipment and lines.
42.2. When working according to a work request,
each contractor must be granted an approved work request to a type of work.
42.3. Each work request may exist in the physical
or electronic form.
43. Work orders
A work order is a physical, electronic or oral
order for execution of works with electrical equipment or lines. Before
commencement of a work, an order needs to be certified by parties involved, and
the content of each order is deposited.
44. Other
regulations for work requests or orders
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44.2. In case of an accident that occurs, a work
request or order, together with the case file, must be kept.
44.3. When working on an electrical line or
equipment that has been de-energized continuously for a multi-day work, a work
request needs to be issued to allow that multi-day work to be performed before
each working day. In this case, the contractor must follow permission-giving
procedures for the work.
45. Works requiring
work requests or orders as a precondition
45.1. Work requests are required as a precondition
for application of safety engineering precautions in preparation for worksites
for such works as:
45.1.1. Working dead.
45.1.2. Working near live or energized parts.
45.1.3. Working live.
45.2. Working according to work orders, including:
45.2.1. Works not requiring implementation of
safety engineering precautions for preparation of worksites.
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45.2.3. Works to be performed as response to any
accident under the superintendence of an in-charge shift worker.
45.2.4. Works with low voltage under a unit head’s
decision.
46. Contents of
work requests
A work request shall include, but not limited to,
the following main information:
46.1. Reference number of the work request.
46.2. Full name of the issuer of the work request.
46.3. Full name of the work director (if any).
46.4. Full name of the electric safety
superintendent (if any).
46.5. Full name of the permission giver.
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46.7. List of the contractor’s staff members.
46.8. Work items or activities.
46.9 Work location.
46.10. Working time (including working hour, day,
month and year).
46.11. Preconditions for commencement of the work
(i.e. deciding whether electricity is off; working near energized parts).
46.12. Scope of activities.
46.13. Safety precautions to be taken at the
worksite.
46.14. Instructions or cautions issued by the
permission giver to the contractor.
46.15. Other necessary work items (if any).
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46.17. Invalidation of the work request.
47. Main content of
a work order
47.1. Reference number of the work order.
47.2. Full name of the work order issuer.
47.3. Full name of the direct supervisor (the work
order assignee).
47.4. List of the contractor’s staff members.
47.5. Work items or activities.
47.6 Work location.
47.7. Working time (including working hour, day,
month and year).
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47.9. Completion of the work.
The work order form is given in Appendix B.
48. Responsibilities
of the work request/order issuer
48.1. Complete and sign in the form before it is
handed out.
48.2. Hand out the completed form, and provide
instructions about specific requirements and hazards for commencement of the
work.
48.3. Check and sign to certify the expiration of
the work request/order when it is handed back.
49. Responsibilities
of the work director
Cooperate in the contractor's operations during the
period of performance of works.
50. Responsibilities
of the permission giver
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50.2. Show the contractor equipment that has been
de-energized, the parts of the equipment that are still live, and safety
precautions that need special attention.
50.3. Sign to authorize the contractor to enter the
worksite, and hand a safe worksite over to the contractor.
51. Responsibilities
of the electric safety superintendent
51.1. Join with the direct supervisor in taking
over the worksite.
51.2. Work full-time at the worksite to supervise
electric safety for the contractor's staff without being allowed to undertake
any other part-time job.
52. Responsibilities
of the direct supervisor.
52.1. Collaborative responsibilities
Work closely with related organizations, command
and inspect the contractor to ensure safety at work and maintain safety for
community.
52.2. The direct supervisor must clearly understand
the content of the assigned work and the safety precautions appropriate to the
work, and must:
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52.2.2. conduct the re-inspection and inspection of
full implementation of necessary safety precautions.
52.2.3. conduct the inspection of compliance with
safety regulations of the contractor’s staff.
52.2.4. conduct the inspection of quality of safety
tools and equipment used at work.
52.2.5. Directly, or assign the contractor’s staff
to, place, move or dismantle electrical safety signs, barriers or portable
earths when they are at work, and notify these activities to all staff members
of the contractor.
52.3. Responsibilities for assignment of duties
Assign the contractor’s staff to enter the worksite
only after obtaining approval from the permission giver, and examining and
taking necessary safety precautions.
52.4. Explanatory responsibilities
Before authorizing the contractor to enter the
worksite, the direct supervisor must explain to the contractor’s staff the
scope of activities involved in the work and steps in performing the work, as
well as safety precautions.
52.5. Supervisory responsibilities
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52.6. Responsibilities for taking over and
returning the worksite
Sign to check with the permission giver whether the
worksite is taken over or returned.
53. Responsibilities
of the contractor’s staff
53.1. Thoroughly grasp and fully comply with
work-related safety regulations; identify hazards and become proficient in
applying first aid methods to victims of electrical accidents.
53.3. Perform the authorized works only.
53.4. When an accident occurs, all staff members of
the contractor must seek to offer victims first aid and medical emergency care,
and immediately notify the nearest medical facility.
54. Responsibilities
of the work order assignee
54.1. Become well aware of the time, place and
details of the assigned work, and safety precautions appropriate to the
requirements of that work.
54.2. Carefully read the content of the work order.
If such order is not normal or clear, they must immediately check it with the
order issuer again.
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54.4. Inspect and implement safety precautions
before commencement of the work.
55. Responsibilities
of the lookout
55.1. Join with the direct supervisor in taking
over the watched position, and always be present at the watched position to
ensure safety for the community.
55.2. Cooperate with the direct supervisor to
ensure the work is performed in a way that protects safety for the community.
III.VII. Performing
works
56. Confirming
safety precautions before commencement of the work
Before carrying out the work, the direct supervisor
is required to confirm safety engineering precautions at worksite that have
been prepared in a due and sufficient manner.
57. Inspecting
tools
Before each work, the contractor’s staff must examine
occupational safety and protective equipment, instruments and machinery.
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In case of temporary suspension of the work, safety
precautions that have been applied, such as portable earths, barriers, warning
signs, must be continued without interruption during the period of such
temporary suspension. If no one stays at the worksite at night, the contractor
must take appropriate measures to prevent the possibility that an accident is
likely to occur. Before resuming the work, all safety precautions must be
re-checked to ensure that they remain appropriate and sufficient.
59. Responses to
abnormalities of equipment
59.1. When detecting any damage to equipment that
is potentially dangerous to human life, the contractor’s staff must immediately
report it to the person in charge after applying urgent measures to avoid
causing any risk to human life.
59.2. Upon receipt of a report of damage to
equipment potentially hazardous to human life, the person in charge must
immediately take appropriate action.
59.3. If there is a risk of electric surge or
shock, cutting off electricity immediately shall be required. In case the power
cannot be cut off, appropriate measures, such as assigning a lookout, must be taken
to avoid any accident to human life.
60. Actions to be
taken in case of an accident or incident
If an accident or incident occurs, the direct
supervisor and the contractor’s staff must immediately stop working and comply
with the following principles:
60.1. Appropriate measures should be taken to
prevent further hazards, and any approach to the damaged equipment that is
likely to cause danger shall be prohibited.
60.2. Victims involved in such accident or incident
must be given first aid care, and the immediate contact with the nearest health
facility must be needed.
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61. Terminating and
temporarily suspending the work
61.1. The contractor shall be required to interrupt
the work:
61.1.1. during the break time.
61.1.2. when any weather change causes risks to
safe working.
61.1.3. when any sign of hazard appears at the
worksite.
61.1.4. when the direct supervisor or the electric
safety superintendent or the lookout fails to fulfill their duties, or is
forced to leave the worksite without their substitute.
61.1.5. when any accident or incident related to
the worksite occurs.
61.2. Requirements for resumption of the work
Before resuming the work, the direct supervisor shall
re-examine the worksite, and allow the contractor to continue to perform the
work if safety precautions have functioned.
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62. Substituting
the contractor’s staff
Substitution of a staff member or the number of
staff members of the contractor shall be decided by the contractor’s person in
charge after receiving the permission giver’s consent sought by the direct
supervisor.
III.VIII. Completing
the work
63. Pre-handover
activities
The direct supervisor shall be required to follow
the steps hereunder:
63.1. Directly re-examine the completed work, the
packing up of tools, and the cleaning up of the worksite.
63.2. Order the contractor’s staff to withdraw from
their working positions, except for those who are in charge of dismantling
safety precautions.
63.3. Order the dismantling of safety precautions
that the contractor takes before commencement of the work.
63.4. Check whether workers, tools, materials and
safety equipment have been fully counted up.
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64. Handing over
the worksite
The contractor can hand over the worksite to the
operator only when all the works have been completed, and portable earths that
the contractor installs have been disconnected.
After completing the steps specified in Article 63,
the direct supervisor shall enter and sign in the section “completion of works”
in the work request, and hand over the worksite to the permission giver.
65. Resting at the
end of the working day and starting the next working day
65.1. If it takes days to perform a work, after
each working day, the contractor shall be required to clean up the worksite and
ensure that safety precautions remain in position.
65.2. When starting the work in the following day,
the permission giver and the direct supervisor need to re-check safety
precautions, and carry out the procedures for grant of permission to work.
65.3. Till the next working day, the direct
supervisor may authorize the contractor's staff to enter the worksite only
after receiving the permission giver's consent, and must re-check whether
safety precautions remain appropriate and sufficient according to the
requirements of the work.
IV. REGULATIONS
APPLIED TO SPECIFIC TYPES OF WORK
IV.I. Occupational
safety and health protection equipment (OSH equipment)
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66.1. All of the contractor’s staff must properly
and fully use occupational safety and health protection equipment suitable for
the assigned work. The direct supervisor shall check whether the contractor’s
staff uses OSH equipment at work.
66.2. When working near the line with voltage of
220 kV or more, and facing the possible risk of electric shock due to inductive
electrification, the contractor’s staff must be furnished with dedicated
protective equipment.
67. Testing OSH
equipment
67.1. Electric safety tools and equipment must meet
testing and usage standards.
67.2. OSH equipment needs to be tested, trialed and
stored according to in-house specifications of the manufacturer and regulations
of laws in force.
68. Daily
inspection
68.1. Before use, users should inspect and use OSH
equipment only when they are satisfied that such equipment satisfies the given
requirements.
68.2. After use, OSH equipment needs to be cleaned,
dried and stored according to regulations in force. If there is any sign
indicating the abnormal condition of OSH equipment, a report on this should be
sent to the supervisor.
69. Using tools and
equipment when working live
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70. Conducting the
periodic inspection and maintenance of tools and equipment used for energized
repair works
70.1. Tools and equipment needed for energized
repair works must be periodically inspected according to standards, and
maintained and stored according to regulations in force.
70.2. Use of OSH tools and equipment for energized
repair works of which the time limit for inspection is exceeded; which is
expired; or which show any abnormal sign shall be prohibited.
71. Transporting
OSH tools and equipment
OSH tools and equipment should be stored in
specialized packages to protect against damage, deformation, fuel, dirt and
moisture penetration during transportation.
IV.II. Ensuring
safety during construction of electricity facilities
72. Performing pole
footing and utility trench excavation works
72.1. When digging a pole footing or utility
trench, the contractor must apply appropriate measures to prevent landslides.
72.2. The contractor must take appropriate measures
to prevent people from falling into a pit, such as setting up barriers, warning
lights and assigning lookouts when necessary.
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73. Distance
requirements for excavation works
73.1. When performing excavation work, construction
equipment, such as vehicles, excavators, etc., must be at least 01 (one) meter
from the electric cable line; vibrator-mounted excavators must be at least 05
(five) meters from the cable line.
73.2. When performing excavation work right above
the underground electric cable line, the first thing to do is to excavate a
trial pit to investigate the position and depth of that underground electric
cable under the supervision of the equipment operator. From the depth of 0.40
meter above the underground cable line, a handheld shovel must be used for
further excavation.
74. Erecting and
dismantling utility poles
74.1. It is forbidden to place hoisting or lifting
equipment to erect a utility pole right under the conductor for the
high-voltage transmission line in use.
74.2. Hoisting cable and decelerating cable must be
fitted properly to prevent the slipped or broken cable from being thrown
towards the operative line. The minimum permissible distance from the hoisting
and decelerating cable to the live line is as follows:
Voltage level
(kV)
Minimum
permissible distance (m)
Up to 220
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500
8.0
74.3. Only a rope may be used as a guy wire to pull
the utility pole in the direction of the operative line. The minimum
permissible distance from a guy rope to the live conductor is as follows:
Voltage level
(kV)
Minimum
permissible distance (m)
Up to 35
4.0
Up to 220
6.0
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8.0
At the risk of transposing a guy wire towards the
live conductor at a distance less than that specified in the table above
(because the wire is broken; the mooring line is not fixed in position, etc.),
another counterbalancing guy wire should be used to pull the utility pole in
the opposite direction.
74.4. When standing up a utility pole, the
following components should be grounded:
74.4.1. Body of the lifting staywire winch.
74.4.2. All guys should be made of metal if it is
an iron utility pole to be erected.
74.5. Necessary measures should be applied to pole
erection or dismantling activities in order to prevent leaning or collapse.
74.6. When erecting and dismantling a utility pole
near an electrical line, appropriate measures must be taken to prevent any
accident caused by encroaching the safety distance corresponding to the voltage
level of the line.
IV.III. Safety for
working with electrical lines
75. Working near
high-voltage lines
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75.2. The contractor’s staff is required to work at
a safety distance from the live line. Safety distances corresponding to voltage
levels shall be defined as follows:
Grid voltage
level (kV)
Minimum
permissible distance (m)
From 01 to 35
0.6
From greater than
35 to 66
0.8
From greater than
66 to 110
1.0
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2.0
From greater than
220 to 500
4.0
75.3. In case of failure to meet the distance
requirements specified in 75.2, electricity must be switched off.
76. Working with
low-voltage lines
76.1. If there is a risk of electric shock to the
contractor’s staff due to other low voltage lines, the direct supervisor must
request the contractor’s staff to cover the live parts with protective devices
to protect against hazards.
76.2. The contractor’s staff must use appropriate
protective clothing and equipment when covering live parts.
77. Replacing or
stretching electrical lines
77.1. For a repair work that, when performed, is
likely to cause the conductor line that needs repairing to be downed or droop,
if that line suspended between the opposite poles passes under another live
conductor line, de-energization of these lines is not required.
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78. Working with
lightning arrester wires
When working with a lightning arrester wire on a
utility pole located within the affected zone of live lines, a shortcut
connector between the lightning arrester wire and the body of the intended iron
pole, or the ground wire for the intended concrete or wooden pole must be
placed to eliminate induced voltage. When working with a conductor, in order to
protect the contractor’s staff from hazards caused by induced voltage, it is
necessary to connect the portable earth of the conductor with the beam of the
iron pole, or set the ground wire for the wooden or concrete pole at the
worksite.
79. Using steel
cables
79.1. The minimum permissible distance from the
(decelerating or hoisting) steel cable and the steel guy wire to the conductor
of the live line is specified as follows:
Working voltage
(kV)
Minimum
permissible distance (m)
From 01 to 35
2.5
From greater than
35 to 110
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From greater than
110 to 220
4.0
From greater than
220 to 500
6.0
79.2. If a guy wire is likely to move near the live
conductor at a distance less than those specified in 79.1, a mooring line shall
be used to pull the guy wire sufficiently away from the conductor. (Pulling)
steel cables must be installed so that, if broken, they will not be thrown
towards the live line.
80. Working on a
de-energized line carried on the same pole as a live line
80.1. Works that involve climbing up a pole
carrying a de-energized circuit of a multi-circuit line while the other circuit
is still live are only allowed provided that the distance between the two
nearest conductors of those two circuits is not less than the distance
specified as follows:
Working voltage
(kV)
Minimum
permissible distance (m)
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3.0
66
3.5
110
4.0
220
6.0
500
8.5
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80.3. Working on conductors of two circuits when a
circuit is still live in case of strong winds that can sway the ropes and
cables, and make it difficult for people working on the pole, shall be
prohibited.
81. Working with
conductors
When mounting or removing electrical conductors,
the following requirements must be fulfilled:
81.1. Check the normal working condition of
supporting structures and guide cables, and take additional measures to prevent
falling and collapse.
81.2. Community safety measures, such as placing
danger warning signals, setting up barricade tapes or barriers for danger
restricted areas, and arranging lookouts when necessary, should be applied.
IV.IV. Safety for
working at power plants or stations
82. Power cut for
works
82.1. When closing or cutting off the circuit
energizing equipment, appropriate safety equipment should be used.
82.2. Power cut for works shall be carried out to
ensure that, after being de-energized, the intended part of the equipment is
seen as isolated from the live parts from all sides (except for GIS equipment).
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83.1. When working on equipment in stop mode, such
as generators, synchronous compensators and transformers, disconnecting all
switching devices from electrical lines and equipment in order to prevent
unexpected power surges occurring on the equipment side is mandatory.
83.2. Generator tests are allowed when that
generator is rotating without excitation, and these tests are conducted
according to the approved test procedures.
84. Flammable
materials
84.1. If there are flammable and explosive
substances, e.g. gasoline, oil, gas, hydrogen, acetylene, at or near a work
zone, the operator and the contractor must cooperate on implementation of
suitable fire safety measures.
84.2. When a generator or synchronous compensator
operates with a hydrogen cooling system, formation of combustible and explosive
mixtures of hydrogen gas shall not be allowed. These mixtures are prone to
explosions when hydrogen gas accounts for 3.3% to 81.5% of the air.
84.3. When operating electrolysis equipment,
formation of explosive mixtures of Hydrogen and Oxygen shall be prohibited.
These mixtures are prone to explosions when hydrogen and oxygen account for
2.63% to 95% of the air.
84.4. When performing the repair work in the choke
oil and air system of a generator, hydrogen-cooled compensator, or electrolyzer
in stop mode, fire and explosion prevention measures, such as ventilating the
air system, the work zone, or separating the system from the running systems,
must be applied.
84.5. Works involving fire or producing sparks in
direct contact with the casing of a generator, compensator, electrolyzer, or on
the pipeline of an oil and gas system containing hydrogen.
84.6. Works involving fire, such as electric
welding, oxy-fuel welding... at a distance of more than 15 m from an oil and gas
system containing Hydrogen can be performed. If less than 15 m, special safety
measures, such as placing a screen, and checking to ensure that hydrogen does
not exist in the air at worksite,... should be taken.
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85. Working with
electric motors
85.1. When working on an electric motor without
needing to disconnect it from the electric circuit, the actuator and the power
source for the motor control must be locked, and a sign must be set up to
prevent mistaken re-energization.
85.2. When working on a motor that requires
disconnection of poles from a power supply circuit, a 3-phase short circuit
current must be connected, and portable earthing must be set for three power
supply poles on the power supply side.
85.3. Motor outlets and cable hoppers must be
protected by guards and secured with bolts. Removing these guards while the
motor is running is prohibited. Rotating parts of the motor, such as slip ring,
flywheel, shaft coupling, and blower, must be guarded.
85.4. Before starting work on a pump or blower
motor, reverse rotation measures should be taken.
86. Working with
switchgears
86.1. Before working with switchgear that can be
automatically started and remotely controlled, the following measures should be
taken:
86.1.1. Separate the circuit for control power
supply.
86.1.2. Put up the safety sign.
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86.3. During operation, all switching actions must
be controlled remotely. Pressing the call-to-action button right at the control
box of the circuit breaker is prohibited. Switching off the circuit breaker by
pressing this call-to-action button is allowed in case of needing to prevent
incidents or rescue victims of electric accidents.
86.4. Switching off the circuit breaker by pressing
the on-site call-to-action button is prohibited if the circuit breaker is not
switched off, or all terminals have not been completely turned off, in spite of
being remotely shut down.
86.5. Dumping of insulating substances used for
operation of switchgears in the environment is prohibited.
87. Raising or
lowering electrical equipment
When raising, lowering or dismantling electrical
equipment, appropriate measures must be taken to prevent falling, collision or
accident due to encroachment of the safety distance between the equipment and
the electrical conductors or other electrical equipment.
88. Instrument
transformers
When working with a protective measuring circuit,
the contractor’s staff must be careful not to impede the grounding part on the
secondary side of the voltage and current transformer. In particular, open
circuit condition in a current transformer on the secondary side is not
allowed.
89. Working with
battery systems with dielectric liquids
89.1. A neutralizer suitable for the battery system
must be made ready for use.
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89.3. Do not smoke or bring fire into the battery
room. Outside the door of the battery room, a "Battery room - no fire - no
smoking" sign must be mounted.
89.4. The battery room must be well-ventilated to
prevent poisoning or fire due to gases emitted from the battery system.
90. Safe working
with GIS equipment
90.1. During normal operation, all actions must be
performed by remote control via the human-machine interface (HMI), or the
supervisory control and data acquisition (SCADA) system. Local control is
allowed only when the gas insulated switchgear (GIS) is not energized.
90.2. SF6 gas pressure, and SF6 leak condition
during operation or repair, must be checked. When a leak is detected, measures
must be taken to prevent and deal with it.
90.3. When isolating equipment by stages, at each
isolation point, lockout and mounting of a warning sign are required.
90.4. Determining whether or not a GIS has been
isolated is based on the on-site command over operation of the switchgear and
voltage parameters of the GIS.
IV.V. Safety for
working at height
91. Checking before
climbing up supporting frameworks
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91.1.1. Condition of that supporting platform,
framework or pole.
91.1.2. Position of that supporting framework and
ways to climb up safely; configuration of that pole or conductors mounted on
that pole.
91.1.3. whether necessary OSH equipment are ready
for use.
91.2. Where it is necessary to climb up a pole that
is not stable enough, appropriate reinforcement measures must be taken to
ensure safety before performing the work.
91.3. The direct supervisor must issue an order to
stop the work if detecting signs of threats to the safety of people and
equipment.
92. Checking power
cut and leakage
When climbing up a utility pole, the contractor’s
staff must check whether power is off or leaked.
93. Using climbing
equipment
When working at a height or depth of more than 02 m
from the ground, the contractor’s staff must use appropriate means of ascending
and descending.
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When working at height, the contractor’s staff must
use safety belts. The safety belt must anchor (hook) to a fixed and secure
position.
95. Preventing
materials and tools from falling
When using materials and tools at height, and when
ascending/descending tools and materials, the worker must take appropriate
measures to prevent them from dropping down.
IV.VI. Safety for
inspection of electrical equipment and tools
96. Barriers,
safety distances and earthing
96.1. High voltage zones inside test stations or
laboratories should be isolated by barriers.
96.2. The distance from the conductive part of the
test equipment to the earthed fixed barrier shall not be less than the distance
specified in the following tables:
96.2.1. For impulse voltage (amplitude value)
Voltage level
(kV)
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From 01 to 100
0.5
From greater than
100 to 150
0.75
From greater than
150 to 400
1.0
From greater than
400 to 500
1.5
From greater than
500 to 1000
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From greater than
1000 to 1500
4.0
From greater than
1500 to 2000
5.0
From greater than
2000 to 2500
6.0
96.2.2. For power frequency voltage, r.m.s. voltage
and d.c.:
Voltage level
(kV)
Distance (m)
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0.1
From greater than
6 to 10
0.2
From greater than
10 to 20
0.3
From greater than
20 to 50
0.5
From greater than
50 to 100
1.0
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1.5
From greater than
250 to 400
2.5
From greater than
400 to 800
4.0
The distance to the temporary barrier must be twice
the above value.
96.3. The height of a fixed barrier must not be
less than 1.7 m; the height of a temporary barrier must not be less than 1.2 m.
The structure of the barrier must ensure that people cannot accidentally touch
the live part.
96.4. The door of a barrier must open outwards or
be of the side swinging type. The door must be automatically locked and can
open from the inside of the barrier without a key.
96.5. It may not be necessary to lock the barrier
at the test site located inside the test station in case of making sure that
unauthorized persons cannot enter.
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Voltage level
(kV)
Distance (m)
From 01 to 10
1.5
From greater than
10 to 35
2.0
From greater than
35 to 110
2.5
96.7. A transformer used for the insulation test
requires a circuit breaker that automatically cuts off the power when the
insulation is breached, and a resistor to reduce short-circuit currents.
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96.9. The following earthing actions are required:
Frames, enclosures, bodies of objects to be tested and test equipment, portable
test benches, handheld power tools, metal barriers, measuring instruments with
metal casing must be earthed. If the metal casing of the measuring instrument
cannot be grounded due to certain condition, a barrier shall be provided.
96.10. In the diagram of a function generator and a
cascade DC generator, a device must be set in place to automatically ground all
capacitors when the power is cut off from the rectifiers.
96.11. Equipment with large capacitance, if not
included in the test scheme, but located in the test ground, shall be
short-circuited and earthed.
96.12. When testing products with large
capacitance, such as capacitors and cables, devices used for short-connecting
and short-circuiting the tested products to earth must be in place.
96.13. At the end of the test, capacitors must be
electrically discharged and earthed. When capacitors are connected in series,
each capacitor must be electrically discharged. Electrical discharge must be
discharged until all sparks are gone.
97. Periodic inspection
of laboratory equipment and instruments
The operator of a test station or a laboratory must
periodically inspect test equipment and instruments. Those which are measuring
equipment must be inspected and calibrated in accordance with regulations in force.
Equipment that fails to meet the requirements after inspection and calibration
shall not be used.
98. Confirming test
circuits
98.1. Before starting a test, the test circuit to
the test instruments must undergo the confirmatory check to ensure the accuracy
of the test diagram.
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98.3. Before connecting a circuit to the test
diagram, it is necessary to check to prevent and isolate the sides of the
transformer.
99. Discharge tests
Before performing a discharge test, or other
potentially hazardous tests or experiments, the test conductor should take the
following measures:
99.1. Make sure no one is in the danger zone.
99.2. Make sure no unauthorized person is in the
worksite.
99.3. Set up warning signals and lock fences to
prevent unauthorized people from entering the test area.
100. Circuit-connected
capacitors
100.1. The circuit supplying power to the terminal
capacitor shall be provided with a switching device and have visible open
points and be placed at the primary circuit of the test transformer.
100.2. Objects to be tested may be placed and
removed only with approval from the direct supervisor, and after electricity is
cut off from the circuit-connected capacitator.
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When testing the mechanical strength of insulators
(made of porcelain, glass, synthetic resins...), people are not allowed to stand
near the test site. Measures must be taken to protect the contractor’s staff
from accidents caused by splashing out debris.
102. Precautions
for test voltage
102.1. To prevent the test voltage from affecting
the working voltage, the distance between the two parts with these voltage
levels must be ensured as follows:
Rated voltage of equipment (kV)
Up to
10
15
20
35
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0.15
0.20
0.25
0.50
102.2. When using a mobile test vehicle or a
stationary testing machine, the following conditions shall be observed:
102.2.1. The test machine shall be divided into two
distinct parts, including one part accommodating low-voltage equipment with
space for the worker, and the other part accommodating all high-voltage
equipment and conductors.
102.2.2. High-voltage electrical equipment must be
carefully fenced to prevent people from approaching.
102.2.3. Doors of high-voltage electrical equipment
must have interlocks using electrical contacts so that, when the door is
opened, the high-voltage voltage is cut off, and there is an indicator light
when this part of the equipment is energized.
102.2.4. All low-voltage electrical equipment must
be arranged in such a way that it is convenient for operation and inspection.
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103. Placing
barriers
The contractor must take appropriate measures, such
as placing barriers, if necessary, around the worksite so that unauthorized persons
cannot enter to cause accidents and injure themselves. Especially, in the case
of working with underground electric cables, the contractor must take measures
to prevent people from falling down the pit.
104. Warning signs
The contractor must put up warning signs before
working to ensure the safety of the community.
105. Working on
the road
105.1. When using roads for works, such as
construction and repair, the contractor can impose restrictions on the passage
of vehicles and pedestrians to keep the community safe.
105.2. When restricting vehicles from using roads,
regulations of relevant authorities must be strictly observed and the following
requirements must be satisfied:
105.2.1. Set up warning signals and assign
personnel as instructors to avoid danger to the community.
105.2.2. The width of the road for vehicles to pass
through must conform to the regulations of the road management agency.
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105.4. When the work is carried out near railway,
road, waterway, or at the crossroads between the power lines and the
aforementioned roads, the contractor must contact the relevant authorities and
request these authorities to assign their staff to give assistance at work to
ensure the safety of people and vehicles using roads, if necessary.
IV.VIII. Safety for
working with vehicles used for operation and repair of electrical lines and
equipment
106. Operation
106.1. Only those who have been fully trained in
professional skills and have relevant certificates as prescribed by law can
operate special-use vehicles.
106.2. The vehicle operator must check the
special-use vehicle before starting.
107. Regulations
on speed limits
When driving in the power station area, the
driving speed of a vehicle must not exceed 10km/h.
108. Minimum
distance
When driving in the power station area, the
minimum distance from any part of the vehicle to the live part is not less than
the distance specified in the following table:
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Distance (m)
From 01 to 35
1.0
From greater than
35 to 110
1.5
220
2.5
500
4.5
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When performing partially dead or live works near
energized zones, platforms of cranes, ladder trucks and mobile forklifts must
be grounded.
110. Responses to
vehicle-related issues
110.1. In case of the electric discharge into a vehicle,
people shall be prevented from touching, leaving or getting on the vehicle
before the power supply causing such discharge is turned off.
110.2. If a vehicle catches on fire before power
cut, the driver must jump out of the vehicle and move away to avoid step
voltage.
111. Periodic
checks
Special-use vehicles must be checked periodically.
112. Prohibiting
operation
Operation of cranes, ladder trucks and forklifts
shall not be allowed in case of scale-5 or higher-scale strong winds.
113. Procedures
for operating vehicles
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IV.IX. Other types
of work:
114. Vegetation
near electricity facilities
114.1. Trees that are likely to threat electrical
safety must be handled (i.e. cutting, pruning, moving,...). Organizations and
individuals must cooperate with the operator on this before performing the
work.
114.2. Before taking action, it is necessary to
check and apply necessary measures to ensure safety for workers, electricity
facilities and the community.
115. Working with
electrical equipment and lines in shared-use technical infrastructure works
115.1. The intended electrical equipment or line
must be identified correctly.
115.2. Hazards of shared technical infrastructure
(if any) must be identified.
115.3. Safety for shared-use technical
infrastructure works must be ensured.
116. Safety for
lifting or lowering loads When lifting or lowering a load, the following
principles must be observed:
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116.2. The load carrying cable must have strength
suitable for the load.
116.3. Hooks and pulleys withstanding cables and
loads must be locked to prevent falling.
117. Transporting
oversize or overweight items
When transporting oversize or overweight items,
appropriate measures must be applied to ensure safety and compliance with
regulations in force.
118. Preventing
incapacitation as a consequence of working with vibrating tools
When working tools causing vibration, such as
chainsaws, compactors, etc., appropriate safety measures must be applied.
119. Working with
DC power transmission systems, underground substations, indoor substations in
high-rise buildings, GIS stations, uninterruptable power supply units, wind
power plants, solar power plants
For DC power transmission systems, underground
substations, indoor substations in high-rise buildings, GIS stations,
uninterruptable power supply units, wind power plants, and solar power plants,
in the absence of current safety regulations of Vietnam on working with the
foregoing, the manufacturers’ in-house specifications and international
regulations shall prevail provided that they do not conflict with regulations
of Vietnam.
120. Working with
unwatched transformer stations
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120.2. There is a process of operation management
and cooperation among units.
120.3. Conditions for remote control and monitoring
must be ensured according to current regulations.
120.4. When there is a contractor working at an
unwatched transformer station, working with it must be the same as working with
a watched one.
121. Live-line
insulator cleaning
121.1. Water quality and pressure must ensure
conformity to the cleaning process. Using water that does not meet insulation
standards to clean hotline insulators shall be strictly prohibited.
121.2. The cleaning work is allowed only in normal
weather condition. Performing the cleaning work when scale-4 or higher-scale
wind; when there is drizzle, thunderstorm, thunder, fog or humidity that is not
safe according to the given process shall be prohibited.
121.3. During the period of working, if there is a
sign of rain or thunder, workers must stop working and withdraw from the
worksite.
122. Working with
live lines (hotline repairs)
122.1. For high-voltage lines (up to 35 kV):
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122.1.2. Performing the work under such conditions
as raining; wet, foggy weather; thunderstorm or scale-5 or higher-scale wind;
in the dark or through lack of light shall be prohibited.
122.1.3. Suitable personal protective equipment,
insulating tools and dedicated means must be used at work.
122.1.4. Auto-reclosing devices should be locked
before proceeding with the work.
122.2. For high-voltage lines (110kV):
122.3. The worker must be trained and drilled to
fit for working with the provided equipment, process and technology; must be
tested to meet theoretical, practical standards, construction, repair and
maintenance methods of the live grid.
122.3.1. In order to perform the works involving
repair and maintenance of electrical lines, conducting surveys, formulating
work plans, registering performance of the work with the operator, and issuing
a work request should precede.
122.3.2. Before starting a work, auto-reclosing
equipment must be locked automatically while manual reclosing must be
prohibited.
122.3.3. Wearing any jewelry or carrying metal
personal items at work shall be prohibited.
122.3.4. Health checks (including body temperature,
blood pressure, eyesight, hearing ability) for the contractor’s staff at
worksite must be carried out before starting the work.
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122.3.6. Working in excess of the working load
(mechanical load) and the operating voltage of working equipment and tools
shall be prohibited.
122.3.7. Do not perform work:
122.3.7.1. in the dark or at night; at a poorly
illuminated worksite (at the work location, the contractor’s staff is required
to clearly notice the nearest live part).
122.3.7.2. in the absence of safe working
conditions; lack of manpower; in the absence of the direct supervisor,
electrical safety superintendent; when personal protective equipment, OSH
equipment or working tools are not sufficient, below the given quality
standards, or not fitted into the technological process.
123. Working in
confined spaces
QCVN 34:2018/BLDTBXH on occupational safety for
working in confined spaces issued as an attachment to the Circular No.
29/2018/TT-BLDTBXH dated December 25, 2018 of the Ministry of Labor, War
Invalids and Social Affairs, and other regulatory documents stating
modification or replacement thereof (if any), shall prevail.
V. RESPONSIBILITIES OF ORGANIZATIONS AND
INDIVIDUALS
124. Implementation
responsibilities
124.1. Entities and persons shall have the duty to
comply with this Regulation and be subject to the inspection of state
regulatory authorities in accordance with regulations in force.
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VI. IMPLEMENTATION
PROVISIONS
125. Responsibilities
for dissemination of information and guidance on implementation hereof
125.1. Departments of Industry and Trade of
provinces and cities shall be responsible for disseminating and providing
guidance on the implementation of this Regulation to organizations and
individuals engaged in performing electrical works and using electricity for
production purposes under the management of provincial authorities.
125.2. Industrial Safety Techniques and Environment
Agency under the Ministry of Industry and Trade shall be responsible for
disseminating information about and providing guidance on the implementation of
this Regulation to Departments of Industry and Trade; organizations and
individuals engaged in performing electrical works and using electricity for
production purposes nationwide.
126. Handling issues
arising from implementation hereof
In the course of implementation hereof, if there is
any issue that arises, the Ministry of Industry and Trade should be promptly
informed to consider taking relevant actions./.