ZXC10 BTSB (V1.0) cdma2000 Base Transceiver Station Installation Manual
2-6
may be reduced by burying the stake deeply into the ground. Grounding stakes are
usually made of galvanized materials in proper size. The connection cables from the
grounding stake to the equipment should adopt copper-sheathed wires of good
conductivity (core wire section area less than 50 mm
2
, and length as short as possible).
If necessary, anti-erosion protection can be provided to the grounding connection parts
to guarantee low-resistance connection.
The working ground refers to the loop formed through the earth to transmit energy and
information. For instance, the 3-phase AC power supply neutral line ground and the
positive battery ground are both working grounds. This grounding approach can resist
electromagnetic interference and cross talk.
The protection ground refers to the grounding of the metal shell of the power supply
equipment to prevent hazards to human body due to power leakage.
In addition, the ground for lightning protection should be used to prevent lightning
stroke from damaging the equipment and to protect the safety of lives and properties.
2.1.5 Checking the Outdoor Installation Environment for the Antenna Feeder
System
1. Check whether the height and size of the feeder window comply with the
requirements of the BTSB equipment and the engineering design drawing.
2. Check whether the height, weight bearing and grounding of the outdoor cabling
rack comply with the engineering design.
3. Check whether the height, weight bearing and grounding of the indoor cabling
rack comply with the engineering design.
4. Check the height, diameter, weight bearing, wind resistance, grounding,
lightning protection and position of the antenna pole of the BTSB on the roof to
make sure they comply with the BTSB equipment requirements and the
engineering design drawing.
5. Check the height, diameter, weight bearing, wind resistance, grounding,
lightning protection and position of the antenna pole of the BTSB on the iron
tower to make sure they comply with the BTSB equipment requirements and the
engineering design drawing.
Summary of Contents for ZXC10 BTSB I1
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Page 22: ... ii Table C 2 1 BTSB Board Indicators C 2 ...
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Page 91: ...Chapter 7 Cable Installation in Cabinet 7 15 Fig 7 3 5 RF Cable Interface in RFS ...
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Page 157: ...Chapter 12 Board Installation 12 11 Fig 12 5 1 Positions of Boards ...
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