Chapter
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6-3
under the feeder window or on the rainproof wall of the feeder well on the roof top. In
principle, it is better to put it close to the feeder window.
During the practical installation, first determine the installation position of the
grounding copper bar by following the engineering design drawing, and then install the
grounding copper bar on the wall with the expansion bolts. See Fig. 6.2-1 for the
structure of the grounding copper bar.
Fig. 6.2-1 Profile of the Grounding Copper Bar
6.2.2 Installing the Feeder Grounding Clip
Caution:
No installation of grounding clip should be performed in case of any lightning strike,
lest bodily injury may be incurred.
When installing the grounding clip, keep the feeder at the joint of the grounding clip
and the feeder straight.
6.2.2.1
Grounding Principles of Main Feeders
1. Usually, each main feeder should be grounded with grounding clips at least at
three positions: on the tower platform, at the place where the main feeder leaves
the tower for the outdoor cabling rack, and before the cable enters the equipment
room. When the main feeder is over 60m, grounding clips should be added in
the middle of it. Generally, a grounding clip is installed on the feeder every 20m.
