(A) Unless the electrical conductors or
equipment to be worked on are isolated from all possible sources of voltage or
are effectively grounded, the employer shall
will provide
protective equipment approved for the voltage involved, such as rubber gloves
with protectors, rubber sleeves, hot line tools, line hose, line guards,
insulator hoods, blankets, and access boards. Employees
shall
will be
instructed in the use of such tools and equipment and, when working on or when
working within contact distance of an energized conductor,
shall
will use
such tools and equipment.
(B)
Effective grounding devices shall
will be provided when work is performed on deenergized
circuits or equipment. Employees shall
will be instructed in the use of such grounding
devices.
(C) Protective devices and
equipment shall
will be stored in a clean, dry compartment or box that
will protect such equipment from punctures, snags, or moisture.
(D) Minimum clearance.
Before an employee moves or operates power cranes, shovels,
backhoes or any other type of material hoisting equipment within ten feet of an
energized electrical conductor, the employer shall
will:
(1) Assure that the conductor is deenergized
and grounded, or
(2) Assure that
the conductor is moved, or
(3)
Assure that the conductor is guarded from accidental contact and an employee is
designated to act as signalman to direct the operator in the movement of the
equipment, or
(4) Assure that an
insulated boom or an insulated type guard about the boom or arm of the
equipment and a dielectric insulator link between the load and the block are
installed and an employee is designated to act as signalman to direct the
operator in the movement of the equipment.
(E) Approach distances to exposed energized
conductors and equipment.
(1) The
requirements
specifications of this paragraph apply only to the
electric utility and clearance tree-trimming industries.
(2) No employee
shall
will be required
to approach or take any conductive object closer to any electrically energized
power conductors and equipment than prescribed in table 23-1 to this rule
unless:
(a) The employee is insulated or
guarded from the energized parts (insulating gloves rated for the voltage
involved shall be
are considered adequate insulation); or
(b) The energized parts are insulated or
guarded from the employee and any other conductive object at a different
potential; or
(c) The power
conductors and equipment are deenergized and grounded.
(F) Approach distances to exposed
energized conductors and equipment.
(1) The
requirements
provisions of this paragraph apply only to the
telecommunications industry.
(2) No
employee
shall
will be required to approach or take any conductive
object closer to any electrically energized power conductors and equipment than
prescribed in table 23-2 to this rule unless:
(a) The employee is insulated or guarded from
the energized parts (insulating gloves rated for the voltage involved
shall be
are
considered adequate insulation); or
(b) The energized parts are insulated or
guarded from the employee and any other conductive object at a different
potential; or
(c) The power
conductors and equipment are deenergized and grounded.
Table 23-1
ALTERNATING CURRENT - MINIMUM DISTANCES
|
Voltage Range (phase to phase) kilovolt
|
Minimum Working and Clear Hot Stick
Clearance
|
|
2.1 to 15
|
2 ft. 0 in.
|
|
15.1 to 35
|
2 ft. 4 in.
|
|
35.1 to 46
|
2 ft. 6 in.
|
|
46.1 to 72.5
|
3 ft. 0 in.
|
|
72.6 to 121
|
3 ft. 4 in.
|
|
133 to 145
|
3 ft. 6 in.
|
|
161 to 169
|
3 ft. 8 in.
|
|
230 to 242
|
5 ft. 0 in.
|
|
345 to 362
|
*7 ft. 0 in.
|
|
500 to 552
|
*11 ft. 0 in
|
|
700 to 765
|
*15 ft. 0 in
|
* NOTE: For 345-362kv. 500-552kv.
and 700-765kv. the minimum working distance and the minimum clear hot stick
distance may be reduced provided that such distances are not less than the
shortest distance between the energized part and a grounded surface.
Table 23-2
Approach Distances to Exposed Energized Overhead Power Lines
and Parts
|
Voltage range (phase to phase, RMS)
|
Approach distance (inches)
|
|
300 V and less
|
(1)
|
|
Over 300V, not over 750V
|
12
|
|
Over 750V not over 2kV
|
18
|
|
Over 2kV, not over 15kV
|
24
|
|
Over 15kV, not over 37kV
|
36
|
|
Over 37kV, not over 87.5kV
|
42
|
|
Over 87.5kV, not over 121kV
|
48
|
|
Over 121kV, not over 140kV
|
54
|
1Avoid contact.
(G) The
requirements
provisions of paragraph (E) of this rule
shall
do not
apply to employees in insulated vehicle-mounted elevating and rotating work
platforms.
