Installation Manual – Antenna & Feeder System Installation
BTS3802C & RRU
Chapter 2
Installing RF Antenna & Feeder System
2-33
2.11 Cutting Feeders
The feeders can be cut prior to the hoisting. Alternatively, they can also be cut after
being hoisted and fixed in position. In the latter case, sufficient feeder shall be left for
the cutting.
Cutting procedure is as follows:
1) Determine the length of the feeder required in each sector according to the
engineering design drawings.
2) Cut the feeder based on the determined length, and take a slack of 1~2 m. When
cutting the feeder, do not bend it and prevent it from being rolled or stepped on
by vehicles or pedestrians.
3) Attach the corresponding temporary label to both ends and the middle of the
feeder after cutting each piece.
Note:
z
For information about feeder label, please refer to "B.2 Engineering Label of Feeder"
z
The content of the temporary label is the same as that of the formal engineering label. Please tear
out the temporary labels before binding (plastering) the formal ones.
2.12 Hoisting and Fixing Feeders
Caution:
Be careful during the hoisting. No violent hoisting is allowed to avoid damage to the feeder skin.
1) Wrap the feeder end in a piece of gunny cloth (or antistatic bag) after the
corresponding connector is completed. Bind the cloth up using the rope or
binding tape.
2) Knot the lifting rope round the feeder at the point 0.4 m from the end and tie
another knot at the point 4.4 m from the feeder end to prepare for the hoisting, as
shown in Figure 2-32. The person on the tower pull up the rope and the person
on the ground shall keep pulling the rope to avoid any damage to the antenna
due to possible collision with the building or with the tower.
