UFC 3-560-01
6 December 2006
Including change 1, 7 December 2006
must wear PPE in accordance with Chapter 4 when removing or installing lamps where
lamp changers cannot be used.
10-10.5 Climbing Space. Maintain safe access by hanging street lighting fixtures
clear of the climbing space. All bolts, lag screws, and other hardware used in securing
the fixtures must be cut, filed, or coated to eliminated sharp or protruding edges or
points.
10-10.6 Time Switches. When winding time switches and working on automatic time
switches, workers must not trip the switch "on" without first pulling the transformer
disconnects or first making sure that street lighting circuits can not be energized. On
time clocks with high-voltage connections, workers must always wear rubber gloves and
appropriate personal protective equipment when winding, resetting, or otherwise
maintaining the clock.
10-11
WORKING ON OR NEAR POLE-MOUNTED EQUIPMENT. This paragraph
provides precautions applicable to equipment that is mounted above grade. Be aware
that some local and state safety regulations do not permit grounding of enclosure cases
on wood poles when there is a possibility that an accidental contact with bare aerial
lines could occur. The equipment on the activity might have been installed in
accordance with these regulations. Transformers connected to an energized circuit
must be considered as being energized at the full primary voltage unless positive
verification is made that they are adequately grounded.
10-11.1 Surge Arresters. Check that the permanent ground connection is intact
before any work is done. Do not climb on or strap off to surge arresters.
10-11.2 Switches and Fuses. The maintenance of switches and fuses might require
temporary line modifications to permit repairs while maintaining service continuity.
Engineering guidance must likely be required in preparing a step-by-step modification
procedure. Both sides of fuses must be deenergized in order for repair work to
proceed.
10-11.3 Capacitors. Chapter 9 discusses discharging capacitors. Individual
capacitor banks must be grounded if insulated capacitor mounting racks are not used.
Provide grounding in accordance with the manufacturer's instructions.
10-11.4
Power Transformers and Voltage Regulators.
10-11.4.1 Work on energized pole-mounted transformers is prohibited except for
testing, replacement of fuses, and switching.
10-11.4.2 Observe the following precautions during installation:
10-11.4.2.1 Carefully inspect all frames and tackles used in erecting pole-type
transformers before each use. Repair defects before the frames and tackles are used.
10-30
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