Sample Installation Standard of BTS.pdf

7/25/2019 Sample Installation Standard of BTS.pdf

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Feeder

. When a feeder window is installed on

the top of building to lead the feeder

cable into the room, it must be sealed

well.


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Feeder

. The antenna jumper and the feeder cable before the feederwindow must have waterproof bends.


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Feeder

. When the feeder cable is bent on the top of a building and then

extended downward along the wall, the protective means should

be used for the parts of contact with the wall corner. When the

feeder cable enter to room along the roof, the feeder clips should

be used to fix the feeder cable.


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Lightning-proof and Grounding

. The lightning-proof arrester must be earthed according to

specification for GSM macro base station. All ground cables are

connected to the outdoor protection ground bar of equipment room

after collecting.


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. The outside grounding bar must be wiped off rust and cleaneddirt before they are connected, in order to ensure their reliable

connection. The outside grounding bar must be anticorrosion

and antirust processed by using self-spray paint or other

protection materials after they are connected in order to ensure

their long-term good contact. Each connecting terminal should

be installed correctly and firmly together with flat washers and

spring washers.


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. The feeder grounding clip is directly fixed on the steel sheet of the

tower perfectly. The installation of this clip must accord with the

standard requirement. The antirust, anticorrosive and waterproof

measures are adopted for the grounding clip and reliable connection.


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. When the tower is more

than 60 meters, add a

grounding clip to the

feeder in the middle of

the tower.


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. The feeder cable should be earthed at three points at least betweenthe top of tower and the equipment room (within one meter away from

the platform on the top of tower, within one meter between the tower

body and the outdoor cabling ladder, and within one meter between

the feeder cable and the feeder window). The feeder cable is tied

firmly at the grounding points and has perfect waterproof treatments.


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. If the length of feeder cable from the tower to the room on the

roof (or cabling ladder) is more than 20 meters, a lightning-

proof protection grounding clip should be added on the roof

(or cabling rack).


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Sample Installation Standard of BTS.pdf