Chapter
8
Installation
of Primary Antenna Feeder System
8-17
the lower end of the cable. Stick a formal label after the cable is led into the
equipment room.
2) Assemble the connectors before raising the primly feeder cables, thus shortening
the time for working at heights and ensuring the quality of the connectors.
8.6.4 Raising Primary Feeder Cable
When the antenna feeder system is to be installed on a tower, the pulley block will be
used to raise the primary feeder cables, as shown in Fig. 8.6-8. The operations are as
follows:
1. Check the labels at both ends of the primary feeder cable to ensure that it is the
right cable.
2. Wrap the feeder cable connector with a piece of flax cloth or an antistatic plastic
bag filled with foam, and then bundle it tight.
3. Tie a knot with the rope on the feeder cable at the place 0.4m away from the
connector and then another knot about 3.4m away from the connector, for the
purpose of facilitating the cooperation between the installation personnel on and
under the tower to raise the cable and preventing the feeder cable and its
connector from being damaged due to hit with the tower.
4. After the primary feeder cable is pulled to the tower top, fasten it tight.
Caution:
Raise the primary feeder cable with care to avoid damaging the sheath of it. If
not, the whole piece of the cable will be wasted.
Mind your own safety also when raising the cable.
