UFC 3-560-01
6 December 2006
Including change 1, 7 December 2006
CHAPTER 8
ENERGIZED WORK
8-1
WORK ON ENERGIZED CIRCUITS. Do not work on energized electrical
circuits operating at 50 V or more except when required to support a critical mission,
prevent human injury, or protect property. In all instances of work on energized
electrical circuits, workers must be qualified for energized line work and all required
protective equipment and special tools must be available at the work site. OSHA 29
CFR 1910.333 limits work on live energized electrical equipment as follows: "Live parts
to which an employee may be exposed shall be deenergized before the employee
works on or near them, unless the employer can demonstrate that deenergizing
introduces additional or increased hazards or is not feasible due to equipment design or
operational limitations." Refer to Paragraph 1.5 for specific requirements for each
service.
WARNING
Only workers qualified by electrical training can work in areas on or with
unguarded, uninsulated energized lines or parts of equipment operating at
50 V or more. All electric lines and equipment will be treated as energized
unless deenergized, locked, tagged, and tested for no voltage. In
addition, grounding shall be in accordance with Chapter 7. Maintain the
specified minimum clearances based on the voltage range. The flash
protection boundary distance requires the wearing of arc rated clothing.
No energized work can be performed during adverse weather conditions
(ice storms, high winds, and electric storms) unless there is an emergency
and the work has been approved by the designated authority.
For the Air Force, work on energized electrical equipment is prohibited
except in circumstances when justified to and approved by the Base Civil
Engineer (BCE) or equivalent in accordance with AFI 32-1064, Electrical
Safe Practices.
8-1.1
Energized Work Permit: Reference NFPA 70E for complete energized work
permit requirements. Permits must be prepared in advance and, as a minimum,
include:
Description of work and location.
Justification for why the work must be performed in an energized
condition.
Description of work practices to be followed.
8-1
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