h. Safety Straps.- Except when mounting or dismounting the personnel-support
platform, the workman shall keep his or her safety strap or safety rope attached to
the insulated tower boom or personnel-support platform at all times. A safety
harness may be used instead of the conventional lineman's body belt, particularly
when a bosun's chair, basket or bucket, or conductor cart is used as the personnel-
support platform.
platform, the workman shall keep his or her safety strap or safety rope attached to
the insulated tower boom or personnel-support platform at all times. A safety
harness may be used instead of the conventional lineman's body belt, particularly
when a bosun's chair, basket or bucket, or conductor cart is used as the personnel-
support platform.
4.5
CONDUCTOR CARTS
4.5.1 Voltage Limitation. Conductor carts may be used as personnel-support
platforms for work performed by the barehand technique on circuits or equipment
with a phase-to-phase voltage rating exceeding 60 kilovolts, and with a phase
spacing of at least 10 feet.
platforms for work performed by the barehand technique on circuits or equipment
with a phase-to-phase voltage rating exceeding 60 kilovolts, and with a phase
spacing of at least 10 feet.
4.5.2 Operating Practices. Only certified workmen shall perform live-line work from
conductor carts, except (1) that during training periods, a workman undergoing
training may practice mounting and dismounting the conductor cart and may perform
specific work from an energized conductor cart, and (2) when it is necessary that an
engineer or other specialist participate in a specific test or inspection program
involving the use of an energized conductor cart, such specialist need not be
certified workman as specified in subsection
conductor carts, except (1) that during training periods, a workman undergoing
training may practice mounting and dismounting the conductor cart and may perform
specific work from an energized conductor cart, and (2) when it is necessary that an
engineer or other specialist participate in a specific test or inspection program
involving the use of an energized conductor cart, such specialist need not be
certified workman as specified in subsection
4.1.3. Conductor carts may be used on single or bundled conductors. The
conductor(s) should be of adequate size and strength to support the combined
weight of the conductor cart, workman, and tools. A close visual inspection shall be
made of the insulator assemblies on each end of the span. All components of the
conductor cart shall have a minimum working Ioad rating of 500 pounds
(2,244 newtons) with a factor of safety of 3. The conductor cart shall be metal or
metal lined, and shall be equipped with a spring-mounted grounding wheel attached
to the frame of the conductor cart. The conductor cart shall be equipped with safety
chains or other suitable means to prevent the conductor cart from accidentally falling
free from the conductor(s).
conductor(s) should be of adequate size and strength to support the combined
weight of the conductor cart, workman, and tools. A close visual inspection shall be
made of the insulator assemblies on each end of the span. All components of the
conductor cart shall have a minimum working Ioad rating of 500 pounds
(2,244 newtons) with a factor of safety of 3. The conductor cart shall be metal or
metal lined, and shall be equipped with a spring-mounted grounding wheel attached
to the frame of the conductor cart. The conductor cart shall be equipped with safety
chains or other suitable means to prevent the conductor cart from accidentally falling
free from the conductor(s).
4.5.3 Minimum Requirements. The following minimum basic requirements shall be
observed in addition to
observed in addition to
a. Clothing.- Workmen riding conductor carts shall be completely clothed in
conductive clothing designed for barehand work.
conductive clothing designed for barehand work.
b. Rigging.- The conductor cart normally shall be raised to its position on the
conductor(s) by means of nonconductive rope handlines attached to the
conductor(s) or overhead ground wires on dead-end structures, or at midspan, or to
the tower arm on suspension structures. Running sheaves attaching the
conductor(s) by means of nonconductive rope handlines attached to the
conductor(s) or overhead ground wires on dead-end structures, or at midspan, or to
the tower arm on suspension structures. Running sheaves attaching the
19 (FIST 3 - 29 5/90)