6 December 2006
Including change 1, 7 December 2006
If the vehicle is in transit with its structure lowered, the clearance may be reduced
to 4 ft. (122 cm). If the voltage is higher than 50kV, the clearance shall be
increased 4 in. (10 cm) for every 10 kV over that voltage.
If insulating barriers are installed to prevent contact with the lines, and if the
barriers are rated for the voltage of the line being guarded and are not a part of
or an attachment to the vehicle or its raised structure, the clearance may be
reduced to a distance within the designed working dimensions of the insulating
If the equipment is an aerial lift insulated for the voltage involved, and if the work
is performed by a qualified person, the clearance (between the uninsulated
portion of the aerial lift and the power line) may be reduced to the distance given
10-14.2.10 Insulated aerial lifting devices used for working on energized electrical
systems must be specifically designed for that sole function. Use the aerial lift only for
10-14.2.11 Stay clear of pressurized oil or air escaping from a ruptured line or fitting.
The pump, compressor, or engine must be stopped as soon as a leak is detected.
10-14.2.12 All hydraulic and pneumatic tools that are used on or near energized
equipment must have non-conducting hoses rated for no less than normal operating
10-14.2.13 Do not exceed the manufacturers' boom and bucket load limits.
10-14.2.14 Articulating boom and extensible boom platforms, primarily designed as
personnel carriers, shall have both platform (upper) and lower controls. Upper controls
must be in or beside the platform within easy reach of the operator. Lower controls
must provide for overriding the upper controls. Controls must be plainly marked as to
their function. Lower level controls must not be operated unless permission has been
obtained from the worker in the lift, except in case of emergency. All controls must be
clearly identified as to their function and protected from damage and unintentional
actuation. The boom position and carrying attachment controls shall return to their
neutral position when released by the operator.
Note: The aerial lift may become energized when the boom or the aerial basket comes
in direct contact with energized conductors or equipment.
\ 10-14.3 Training
10-14.3.1 The operator must be trained in accordance with the manufacturer's
operation manual and the applicable ANSI standard. Any ground safety personnel