Huawei iSiteC BTS3601C Installation Manual page 127

Installation Manual
iSiteC BTS3601C CDMA Base Station
grounding busbar. If no double shielded cable is avaialble, the transmission cables
must wear the 50m-long metal tubes. And both ends of the tube should be
grounded.
Trunk cable should be labeled after the distribution.
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II. For power cables
1) Gists for indoor installation
Power cables should not be cross-connected or in parallel with signal cables.
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Cables distributed on the wall must be protected by PVC cabling trough, which
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should be fixed on the wall with wall fixing clips. And cables should be distributed
horizontally and straight. Even if turns are unavoidable, the minimum angle at
each turn should not be smaller than 120°.
Power cables should be labeled after the connection. Figure 2 -49 shows the
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appearance of a power cable label.
Figure 2-49 Power cable label appearance
2) Gists for outdoor installation
It is strongly prohibited to tie AC power cable on the iron objects and then lead it
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into BTS3601C. Instead, the cable should be first connected to porcelain insulator,
then to BTS3601C.
Power cables distributed along the iron object and pole must be protected by
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currgated tubes, as well as the transmission cables. The tubes should be fixed
with black ties. Cables should be distributed as horizontally and straight as
possible. If turns of cables are unavoidable, the turns should be be made smoothly
via circular arcs.
III. For grounding cables
As the requirements for grounding cable connections are comparatively complicated.
Following is to describe them in terms of varied installation modes.
1) Installing BTS3601C on tower
The grounding of BTS3601C system and tower lightning protection system must
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share the same grounding body.
When the BTS3601C is close to the transformer for power distribution (straight
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distance less than 30m), the counterpoise of the BTS3601C system should be
connected to that of the transformer and form a unified counterpoise.
2-49
Hardware Installation
2 Installing Cabinet Hardware