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4)
The minimum bending radius of the primary feeder cable should be no less than
20 times of its semi-diameter. The minimum one-time bending radius is 90mm,
and the minimum repeated bending radius is 200mm.
5)
The maximum interval between hangers is 1.65m.
2.
Cabling procedures:
1)
In principle, a hanger should be installed on the tower or cabling rack every
about 1.5m. For onsite installation, the interval can be lengthened or shortened
depending on the actual situation, but the maximum interval cannot exceed
1.65m. Install the hangers with even distance in the same direction. If two rows
of hangers are installed on one cabling ladder, keep them in parallel and in order.
See Fig. 8.6-9 for the appearance of a hanger.
2)
Arrange the primary feeder cables before leading them into the equipment room.
3)
Fasten the primary feeder cables from top downward with hangers. Keep the
cables straight all the way. Do not fasten the feeder cables at both ends
simultaneously.
4)
If the antenna feeder system is installed on the top of a building, the network
operator should install the cabling ladder on the wall. In this case, fasten the
primary feeder cables with hangers along the ladder before leading them into the
equipment room.
Chapter 8 Installation of Primary Antenna Feeder System
Fig. 8.6-9 Appearance of a Hanger
8-19
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