UFC 3-560-01
6 December 2006
Including change 1, 7 December 2006
8-1.2.1 Workers at Ground Potential. Workers are located on the structure
supporting the conductor or on other work platforms and remain essentially at ground
potential using insulated tools and equipment. Apply the lockout/tagout program with
temporary grounding to ensure that an appropriate ground potential is maintained.
8-1.2.2 Workers at Intermediate Potential. Workers are isolated from grounded
objects by insulating means, such as an aerial lift or an insulating ladder or platform,
and they work with insulated tools and equipment. Specific approval is required for this
work.
8-1.3.3 Workers at Line Potential. Workers are bonded to the energized device on
which work is to be performed and are insulated from grounded objects and other
energized devices that are at a different potential. This is commonly known as the
barehand technique and is prohibited.
8-2
ENERGIZED WORK RULES. With the use of various types of aerial
equipment and hot-line tools, it is possible to perform many operations in the
maintenance of overhead distribution lines while these lines are energized. Exact
compliance with safety precautions is particularly important for energized work, and
personnel engaged in this type of work must be thoroughly trained in the procedures
and the use of tools and equipment. Trained personnel must be familiar with
ANSI/IEEE 516, Guide for Maintenance Methods on Energized Power-lines, and
ANSI/IEEE 935, Guide on Terminology for Tools and Equipment to Be Used in Live Line
Working. The "Lineman's and Cableman's Handbook" also provides pictorial data on
many of the tools, equipment, and techniques used for live-line operations.
8-2.1
Permitted Work. Energized work must not be performed at any facility
without authorization.
8-2.2
Personal Protective Equipment. Refer to Paragraph 4-4.2 to determine the
protective clothing that will be required.
8-2.3
Statement of Qualifications. Each worker authorized to perform work on
energized lines or equipment must be qualified and covered by a written statement that
indicates the highest voltage on which the individual is authorized to work. Local policy
must establish who can issue the statement of qualification. Electricians in upgrade
training must work under the direct supervision of a qualified person.
8-2.4
Work Methods for Voltage Levels. Energized work methods and the
minimum working distances must be in accordance with this UFC. For overhead line
work, use the approved energized work methods given in Table 8-1 while maintaining
the working distance requirements given in Table 3-1. Use insulating (rubber) goods
meeting the requirements of ASTM F 18 standards with color coding meeting the
requirements of Table 5-1. Use leather protectors over rubber gloves. Use insulating
tools meeting the requirements of Table 8-2 and insulating plastic guard equipment
8-3
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