UFC 3-560-01
6 December 2006
Including change 1, 7 December 2006
10-8.2.1 The worker attending the payout reel must wear rubber gloves when pulling
wire over or near energized conductors, and be positioned on an insulated stand of a
size equivalent to or larger than a standard rubber blanket.
10-8.2.2 Ground the payout reel. The authorized individual-in-charge must approve
any deviation in grounding the payout reels.
10-8.2.3 A bull line, which must be of dry polypropylene rope not smaller than 1/2 in
(12.7 mm) diameter, must be placed in position to pull the wire before attempting to
string it. The bull line must be of sufficient length to reach the distance the wire is to be
pulled. Fasten the wire to the end of the bull line and pull it into position.
10-8.2.4 A vehicle used to pull the wire must be positioned so that the driver can see
the signals of the reel operator. Both in pulling in the wire and in sagging it, the pulling
must be slow and steady to prevent swinging the wires into the energized conductors.
The wire must be watched carefully to prevent its hanging up on tree limbs, weeds, and
other obstructions.
10-8.2.5 Do not touch any conductors or wires on the ground without rubber gloves.
10-8.2.6 Wear rubber gloves and use other protective devices, as appropriate when
wires are strung and sagged over, under, or across conductors carrying a voltage of
5,000 V or less. Positively and constantly ground conductors carrying more than
5,000 V during the stringing operation. Ground the wire with standard grounding
devices as soon as it is ready to be dead-ended.
10-8.2.7 Discontinue operations and seek appropriate shelter when notified that a
lightning warning is in effect. Electrical charges can appear on the line from a lightning
strike or from induced static charges from a very dry atmosphere. Be in contact with
the Base Weather Service and cease outside activities when notified of a lightning
warning. Waiting for an indication of lightning can expose a work crew to adverse
weather conditions.
10-8.2.8 Keep wires being strung along or across streets or highways higher than any
expected car or truck traffic. Traffic must be blocked when this line elevation is not
possible.
10-8.3
Grounding. Requirements for grounding of deenergized lines are covered in
Chapter 7. Other grounding requirements are as follows:
10-8.3.1 Permanent ground wires are installed to protect workers. All permanent
grounds must be installed in accordance with the requirements of the NEC or the
NESC, as applicable. If the permanent grounds are not installed, the metallic case,
covering, or mounting support of any energized piece of electrical equipment must be
treated as if it is energized at full voltage.
10-25
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