|
THE
GOVERNMENT
|
SOCIALIST
REPUBLIC OF VIET NAM
Independence Freedom Happiness
|
|
No.
106/2005/ND-CP
|
Hanoi,
August 17th, 2005
|
DECREE
DETAILING AND GUIDING THE IMPLEMENTATION OF A NUMBER OF
ARTICLES OF THE ELECTRICITY LAW ON PROTECTION OF SAFETY OF HIGH-VOLTAGE POWER
GRID WORKS
THE GOVERNMENT
Pursuant to the December 25,
2001 Law on Organization of the Government;
Pursuant to the December 3, 2004;
At the proposal of the Industry Ministry,
DECREES:
Article 1.-
Governing scope
1. This Decree details and
guides the implementation of a number of articles of the Electricity Law on
protection of safety of high-voltage power grid works.
2. High-voltage power grid works
include the high-voltage power grid and its safety corridor. High-voltage power
grid is a power network with a nominal voltage of 1,000 V or higher.
Article 2.-
Construction of high-voltage power grid works
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
2. Investors of high-voltage
power grid works must abide by the provisions of Clauses 2 and 3, Article 49 of
the Electricity Law and the provisions of construction law.
In cases where it is necessary
to construct overhead power transmission lines over works of political,
economic, cultural, security, defense, information and communication
importance, places of frequent mass gatherings, historical-cultural relics,
scenic places and landscapes which have been classified by the State, the
following conditions must be satisfied:
a/ Overhead power transmission
line sections stretching over above-said works and places must be reinforced
with power and construction safety measures;
b/ The distance from the lowest
point of the power transmission line in the maximum sagging state to the
natural ground surface must not be shorter than the following:
Voltage
Up to 35 kV
Between 66-110 KV
220kV
Distance
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
12 m
13 m
3. Underground cable sections connected with overhead power transmission
lines at a height of 2 meters from the ground surface must be placed in
protection tubes.
4. Upon completion of
construction of high-voltage power grid works, work investors shall have to
promptly notify such to provincial/municipal Peoples Committees of localities
where exist such high-voltage power grid works for coordinated management .
Article 3:.-
Discharge safety distances for different voltages
1. Discharge safety distances for
different voltages mentioned in Clause 1, Article 51 of the Electricity Law are
specified in the following table:
Voltage
Up
to 22 kV
35
kV
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
220kV
Insulated
wire
Bare
wire
Insulated
wire
Bare
wire
Bare
wire
Discharge safety distance
1.0m
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
1.5m
3.0m
4.0m
6.0m
2. Discharge safety distances for different voltages mentioned
in Clause 4, Article 51 of the Electricity Law mean the minimum distance wire to
the nearest point of working equipment, tool or device within the safety
corridor of a high-voltage power grid work and are specified in the following
table:
Voltage
Up to 22 kV
35kV
66-110kV
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
500kV
Discharge safety distance
4.0m
4.0m
6.0m
6.0m
8.0m
3.
Discharge safety distance for different voltages mentioned in Clause 5, 6 and
7, Article 51 of the Electricity Law mean minimum distances from the power
transmission lien in the maximum sagging state to the highest point of
protected object and are specified in the following table:
Voltage
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
Up to 35kV
66-110kV
220kV
500kV
To the highest point (4.5 m) of railway means of
transport
2.5 m
2.5 m
3.5 m
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
To the highest point (4.5 m) of railway means of
transport and traffic works
3.0 m
3.0 m
4.0 m
7.5 m
To the highest point (7.5 m) of power-operated railway
means of transport and traffic works
3.0 m
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
4.0 m
7.5 m
To the clearance heights according to technical grades
of inland waterways
1.5 m
2.0 m
3.0 m
4.5 m
Aticle 4.- Safety corridors of
overhead power transmission lines
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
a. The length of the corridor is
calculated from the position at which the line stretches from the protection
boundary of a station to the position at which the line runs through the
protection boundary of the next station.
b.The width of the corridor is
delimited by two vertical planes on both sides of the line, running in parallel
with the line and with a distance from the outmost wire to each side when the
wire in the static state, being specified in the following table:
Voltage
Up to 22 kV
35 kV
66-110 kV
220 kV
500kV
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
Bare wire
Insulated wire
Bare
wire
Bare wire
Distance
1.0 m
2.0 m
1.5 m
3.0 m
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
6.0 m
7.0 m
c The height of the corridor is calculated from the bottom of
the post base to the highest point of the work plus a vertical safety distance specified
in the following table:
Voltage
Up to 35 kV
66-110 kV
220 kV
500 kV
Distance
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
3.0 m
4.0 m
6.0 m
2. Safety corridors of various power cable lines stretching on
the ground surface or hung in the air mean the spaces along such power cable
lines and are delimited by a distance of 0.5 m to all sides from the outmost
cable.
Article 5.-
Trees planted inside and outside safety corridor of overhead power transmission
lines
1. With regard to trees inside
safety corridor of overhead power transmission lines, distances are specified
as follows:
a/ For overhead power
transmission lines with a voltage of up to 35 kV in cities, provincial towns or
district townships, the distance from any point of trees to the transmission
lines in the static state must not be shorter than those specified in the
following table :
Voltage
Up to 35 kV
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
Insulated
Bare wire
0.7 m
1.5 m
b/ For transmission lines with a voltage of between 66 kV and
500 kV in cities, provincial towns or district townships, trees must not be
higher than the lowest wire, except for special cases where technical measures
must be taken to ensure safety and provincial/ municipal Peoples Committees so
permit. The distance from any point of trees to the wire when it is static must
not be shorter than those specified in the following table:
Voltage
66-110 kV
220kV
500 kV
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
Bare wire
2.0 m
3.0 m
4.5 m
c/ For transmission lines outside cities, provincial towns or
district townships, the vertical distance from the highest point of trees to
the lowest height of a line in the state must not be shorter than those
specified in the following table:
Voltage
Up to 35 kV
66-110 kV
220 kV
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
Distance
Insulated wire
Bare wire
Bare wire
0.7 m
2.0 m
3.0 m
4.0 m
6.0 m
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
Voltage
Up to 35 kV
66-220 kV
500 kV
Distance
0.7 m
1.0 m
2.0 m
3. Trees which can quickly grow within a short period of time
and threaten to cause unsafety and trees which, when being cut or trimmed, would
no longer be of economic efficiency must be felled and not be re-planted.
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
Article 6:-
Dwelling houses and projects within overhead power transmission line protection
corridors
1. Conditions for dwelling
houses and projects to exits within safety corridor of to-220 kV power grid
works:
a/ Their roofs and surrounding
walls are made of fire-proof materials;
b/ Their roofs, frames and
surrounding walls, if made of metals, must be earthed according to regulations
on earthing technique;
c/ They do not block passages
into high-voltage power grid works for checking, maintenance and replacement of
parts of such works;
d/ The distance from any of
their parts to the static must not be shorter than those specified in the
following table:
Voltage
Up to 35 kV
66-110 kV
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
Distance
3.0 m
4.0 m
6.0 m
dd/ The electric-field intensity at any point outside the house
and one meter from the ground surface must be equal to or smaller than ≤ 5
kV/m, and at any point inside the houses and one meter from the ground surface
must be equal to or smaller than ≤1 kV/m.
2. For dwelling houses and
projects lawfully constructed before the construction of overhead power
transmission lines, which fail to satisfy the conditions specified in Clause 1
of this Article, investors of high-voltage power grid works shall bear costs
of, and organize the modification thereof in order to satisfy such conditions.
In cases where they are partly dismantled while other parts still exist, are
usable and satisfy the conditions specified in Clause 1 of this Article,
compensations for values of the dismantled parts of houses or projects and
expenses for renovation and re-improvement of such house of such houses or
projects shall be paid according to equivalent technical standards of houses
and projects before dismantlement. Investors of high-voltage power grid works
shall have to pay compensations for such dismantled parts. In cases where
houses or projects cannot be modified to satisfy the above-said conditions and
must be dismantled or relocated, compensations therefore and supports for
relocation shall be paid according to provisions of law on compensations,
support and resettlement.
Article 7.-
Underwater power cable safety corridors
The underground or underwater
power cable safety corridors
1. Its length is calculated from
the position where the cable runs out of the protection scope of a station to
the position where the cable gets into the protection scope of the next
station.
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
a/ Outer side of the cable
trough for cables placed in troughs;
b/ Two vertical planes on both
sides of the underground or underwater cable line and separated from the outer
edge of the cable casing or the outermost cable by distances specified in the
following table:
Type of electric cable
Placed directly underground
Placed directly underwater
Stable ground
Unstable ground
Without boat/ship navigation
Without boat/ship navigation
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
1.0 m
1.5 m
20.0 m
100.0 m
3. Its height is calculated from ground surface or water
surface to:
a/ Outer edge of the cable
trough base bottom, for cables placed in troughs:
b/ The depth lower than the
lowest point of the cable casing by 1.5 m, for cables places directly
underground or underwater.
Article 8:-
Transformer station safety corridors
1. The transformer station
safety corridors mean the space surrounding such station and are delimited as
follows:
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
Voltage
Up to 22 kV
35 kV
Distance
2.0 m
3.0 m
b/ For stations without fixed surrounding walls or fences, the
width of their safety corridors are delimited to the outer side of walls or
fences; the height of their corridors is calculated from their deepest base
bottom to their highest point plus a vertical safety distance specified at
Point c, Clause 1, Article 4 of this Decree.
2. Houses and projects
constructed near safety corridors of stations must not cause damage to any part
of the stations; must not encroach upon ways in and out of the stations, water supply
or drainage pipelines of the station, safety corridors of underground cable
lines and overhead power transmission lines; must not block ventilation systems
of the stations; must not let wastewater infiltrate into, thus damaging the
power works.
Article 9:-
Signboards and signals
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
2. Electric posts must be
painted in white-red from the height of 50 meters upward and signal lights must
be placed on top of the posts in the following cases:
a/ Electric posts are 80 meters
or more high;
b/ Electric posts are between 50
and 80 meters high at positions of special requirements.
3. In cases where a high-voltage
power transmission line lies within the boundary of 8,000 meters from the
nearest runway of an airport, the painting of electric posts and putting up of
signal lights shall comply with regulations of the state management agency in
charge of aviation.
4. Along underground power cable
lines, project owners must place market posts or signboards.
Article
10.- Management and operation of high-voltage power grid works
1. Units which manage and
operate high-voltage power grid works have the responsibilities:
a/ To check the safety corridors
of high-voltage power grid works under their management in order to promptly
detect acts of violating regulations on protection of safety of high-voltage
power grid works. When detecting acts of violation, to request violators to
immediately stop their acts and report thereon to and coordinate with local
competent state agencies for making written records on, and handling of such
acts of violation.
b/ To check, regularly repair
and maintain transmission lines within the set time limit. Not to overload
transmission lines stretching over dwelling houses or projects;
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
2. Persons who manage the
operation and repair of power grids must observe regulations on safety
assurance according to technical safety rules.
3. The felling or trimming of
trees to protect safety of high-voltage power grid works shall be conducted by
units managing such works and must be notified to managing such works and must
be notified to managing units or owners of such trees five working days in
advance.
4. Where it is a must to fell
trees for remedying incidents, units managing high-voltage power grid works
shall have to promptly notify the number of trees to be felled and pay
compensations therefore to tree owners. Where they cannot notify such to tree
owners, they shall have to notify such to local commune-level Peoples
Committees before felling the trees.
5. It is strictly prohibited to
take advantage of the protection or repair of high-voltage power grid works to
fell trees without permission.
6. Units managing high-voltage
power grid works which perform the task of periodical repair must notify such
to organizations or individuals using land where underground cable lines run
through or overhead power transmission lines stretch or three days in advance;
notify such organizations or individuals of irregular repairs prompted by
incidents before conducting them. Where they cannot notify such organizations
or individuals of the repairs, they must notify local commune-level Peoples
Committees before conducting them. Upon completing checking and repair, units
managing high-voltage power grid works shall have to restores grounds to their
original state.
7. Organizations or individuals
using land where underground cable lines run through or overhead power
transmission lines stretch over shall have to create favorable conditions for
units managing high-voltage power grid works to check or repair damage of
works.
Article 11.-
Prohibited
1. Entering transformer
stations, disconnecting or climbing onto parts of power grid works when being
not tasked to do so.
2. Stealing, throwing, shooting
and causing damage to parts of power grid works.
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
4. Flying kites or other flying
objects near high-voltage power grid works; flying any objects which may cause
damage to high-voltage power grid works.
5. Installing antennas, drying
wires, scaffoldings, advertising billboards or lamp boxes and other appliances
at positions where such things, when falling down, may hit parts of
high-voltage power grid works.
6. Planting trees or letting
tree branches or creepers encroach upon safety distances, for overhead power
transmission lines; letting trees fall down and hit power lines when spaces
along the lines are cleared of trees.
7. Shooting birds perching on
wires and stations; casting or throwing any object onto power lines and
stations; removing stay wires, earthing cables and other accessories of
electric posts; digging ground thus causing land subsidence at high-voltage
power grid works; embanking earth in encroaching upon safety distances; using
electric posts and stations as houses, huts or stalls or for tying bovine
animals or other cattle.
8. Blasting mines, opening pits,
piling up in storage inflammables, explosives or chemicals which eat away parts
of power grid works; slashing and burning fields, using construction means
which cause strong quakes or damage to power grid works.
9. Operating flying means at a distance
of less then 100 meters to the nearest part of power grid works, except where
such means are performing tasks of managing, maintaining or repairing power
lines under the Industry Ministrys regulations.
10. Other acts violating
regulations on protection safety of high-voltage power grid works.
Article
12.- Responsibilities to protect safety of high-voltage power grid works
1. Upon detecting that a
high-voltage power grid work is encroached upon, destroyed, on fire or struck
by a serious incident, its managing unit, local Peoples Committee, police and
armed force units stationing in the locality shall have to coordinate with one
another in quickly remedying the incident in order to minimize the damage and
put the work back into normal operation.
...
...
...
Please sign up or sign in to your Pro Membership to see English documents.
3. Basing themselves on the
situation in their respective to callities, presidents of provincial/municipal
People Committees shall set up provincial-level steering boards to resolve
problems relating to the protection of high-voltage power grid works. Composition
and operation regulations of steering boards shall be decided by presidents of
provincial/municipal People Commitees.
Article 13.-
Implementation effect
This Decree takes effect 15 days
after its publication in CONG BAO and replaces Decree No. 54/1999/ND-CP of July
8, 1999, on protection of safety of the high-voltage power grids and Decree No.
118/2004/ND-CP of May 10, 2004, amending and supplementing a number of articles
of Decree No. 54/1999/ND-CP of July 8, 1999, on protection of safety the high-voltage
power grids.
Article
14.- Implementation responsibilities
1. The Industry Minister shall
have to monitor, inspect and guide the implementation of this Decree.
2. Ministers, heads of
ministerial-level agencies, heads of Government-attached agencies and
presidents of provincial/municipal Peoples committees shall have to implement
this Decree.
ON
BEHALF OF THE GOVERNMENT
PRIME MINISTER
Phan Van Khai