shall be maintained in first-class condition and their length confined to that
necessary to permit free working conditions. Wand and bonding straps shall be so
restrained as to prevent them from falling below the bottom of the platform.
necessary to permit free working conditions. Wand and bonding straps shall be so
restrained as to prevent them from falling below the bottom of the platform.
4.2.8 Special Minimum Distance Precautions. When observing distances specified in
No portion of the insulating section of the aerial-lift equipment is permitted to be less
than the phase-to-ground distance, as shown in column (a), from an external
grounded part, or from any grounded parts such as the lower arm sections or
portions of the vehicle. This requirement is particularly important when work is being
performed with an articulating-boom-type assembly in either a low or a jackknifed
position.
than the phase-to-ground distance, as shown in column (a), from an external
grounded part, or from any grounded parts such as the lower arm sections or
portions of the vehicle. This requirement is particularly important when work is being
performed with an articulating-boom-type assembly in either a low or a jackknifed
position.
No portion of the grounded section of the aerial-lift equipment is permitted to less
than phase-to-ground distance to an energized conductor, as shown in column (a)
than phase-to-ground distance to an energized conductor, as shown in column (a)
No portion of a workman, tools, aerial platform, or insulating section of the aerial-lift
equipment is permitted to be less than phase-to-phase distance to another
energized conductor, as shown in column (b).
equipment is permitted to be less than phase-to-phase distance to another
energized conductor, as shown in column (b).
For work at the energized terminal end of a bushing on a circuit with a phase-to-
phase voltage of less than 200 kilovolts, the aerial platform must be positioned so
that none of the bushing insulation is shunted by the aerial platform, with distances
from grounded parts and other phases not less than specified in
phase voltage of less than 200 kilovolts, the aerial platform must be positioned so
that none of the bushing insulation is shunted by the aerial platform, with distances
from grounded parts and other phases not less than specified in
For work at the energized terminal end of a bushing on a circuit with a phase-to-
phase voltage of 200 kilovolts or more, the aerial platform must be positioned so that
no more than 10 percent of the bushing insulation is shunted by the aerial platform,
with distances from grounded parts and other phases not less than specified in
phase voltage of 200 kilovolts or more, the aerial platform must be positioned so that
no more than 10 percent of the bushing insulation is shunted by the aerial platform,
with distances from grounded parts and other phases not less than specified in
4.2.9 Distance Tables. The minimum distance tables as shown in
shall be printed on a plate of nonconductive material and shall be mounted in or
near the aerial platform(s) so as to be visible to the operator of the aerial-lift
equipment.
near the aerial platform(s) so as to be visible to the operator of the aerial-lift
equipment.
4.2.10 Safety Belts. When working aloft, both legs shall be inside the aerial platform
at all times, with at least one foot on the bottom of the aerial platform. Workmen shall
be belted in with approved-type safety belts.
at all times, with at least one foot on the bottom of the aerial platform. Workmen shall
be belted in with approved-type safety belts.
14 (FIST 3 - 29 5/90)