Section 5. WORK ON DE-ENERGIZED OR ENERGIZED LINE SAFETY
Electrical Aspects Affecting Safety. Working on or near normally
energized lines or parts requires observance of rules applying to safe working distances,
work methods related to whether the line has been de-energized or left hot, and
recognition of work hazards that require more than one worker for safety.
Safe Working Distances
Only workers qualified by electrical training may work in areas on
or with unguarded, uninsulated energized lines or parts of
equipment operating at 50 volts or more (refer to subsection
4.6.2). All electric lines and equipment will be treated as
energized unless de-energized and grounded. Maintain the
minimum clearances of Tables 11 and 12 based on the voltage
range. The flash protection boundary distance requires the
wearing of flame-resistant clothing (see Table 2).