Chapter 13 Hardware Installation Check
13-7
3. The RF lightning arrester and the GPS lightning arrester should be mounted
between two crosspieces of the cable rack without touching the cable rack.
Insulation from the cable rack is required.
13.10 Checking the Lightning Arrester Rack
Requirement:
1. The lightning arrester rack installed should be insulated from the cable rack.
2. The lightning arrester should be installed on the lightning arrester rack in a firm,
reliable and beautiful way.
3. The grounding copper cable of the lightning arrester rack must be routed to the
outdoor grounding copper bars for reliable grounding.
4. When led outdoors, the grounding copper cable of the lightning arrester rack
must be insulated from indoor conductors.
13.11 Checking the Primary Feeder Cables and GPS Feeder Cables
Requirements:
1. To make a main feeder connector, you have to use a special cutter. The profile
of the main feeder should be flat and smooth. The main feeder has no copper
scraps in its copper tube. The feeder connector should meet the standards and be
connected tightly.
2. 7/8" feeder connector should be tightened with a big spanner and installed in
place to avoid any abnormal SWR caused by false connections.
3. The feeder between the tower top and the equipment room should be grounded
in at least three points. The first location is within 1 m from the tower up to the
platform. The second is within 1 m from the tower to the front of the outdoor
cable rack. The third is within 1m between the feeder and the feeder window.
The grounding points should be bound firmly with proper waterproof measures.
Where a grounding kit is installed, the sheath of a feeder is removed according
to the kit size. When installing the grounding kit, pay attention to waterproof
measures. The terminal of the grounding kit connected with a grounding cable
should face downward lest any rainwater should flow into the feeder along the
grounding cable.
Summary of Contents for ZXC10 BTSB I1
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