Injury Illness Prevention Plan - Flipbook - Page 43
Before assembly or disassembly of a crane or lift, the Superintendent must determine if
it could come within 20 feet of a powerline (up to 350 kV). If so, the teammate must take
one of the following actions:
x Confirm with the power company that the line is de-energized and visibly
grounded at the worksite.
x Ensure no part gets within 20 feet of the powerline.
x Follow Table A, which has minimum clearance distances listed based on voltage.
If the line is not de-energized, then the Superintendent must take the following actions:
x Conduct a meeting with the crane/lift crew to review measures to prevent
encroachment.
x Use only NONCONDUCTIVE tag lines, and warning signs near overhead power
lines.
x Use a dedicated spotter, a proximity alarm, a range control warning device, an
automatic limit device or an elevated warning line/barrier placed in view of the
crane operator.
Cranes and lifts cannot be assembled/disassembled below an energized power line or
within Table A clearances from a powerline.
x If Table A is used, the owner/utility must provide the powerline voltage to the
employer within two days of request.
x Powerlines are assumed to be energized until written confirmation is provided
that they are de-energized and visibly grounded.
x Warnings about electrocution hazards must be posted conspicuously in the
crane cab and outside the cab in view of the operator (except for overhead
gantry and tower cranes).
The work zones must be demarcated 360 degrees around the equipment to prevent
encroachments within 20 feet of a powerline. If the line is not de-energized, a meeting
must also be held with the crew before operations begin to review the location of the
lines and procedures to prevent encroachment. Measures similar to those required
during assembly/disassembly must be taken to prevent encroachment, but in this case an
insulating link between the load line and the load is also an option.
Operators and crew members of any crane or lift must be trained:
x On procedures to follow in the event of power line contact
x To presume that powerlines are reenergized until confirmed and visibly
grounded
x To presume that powerlines are not insulated until otherwise confirmed by the
owner or a qualified person.
x On the limits of insulating links and other devices (e.g., proximity alarms)
x On proper grounding procedures and their limitations
x Spotters will also be adequately trained.
Revised: October 2023
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