Chapter 10 Main Antenna Feeder System Installation
10-3
outdoor lightning protection grounding cable has been in place with the core diameter
more than 50 mm2, whether the distances between the antenna lightning arrester, the
lightning protection grounding point, the outdoor cabling rack, and the antenna pole
meet the design requirement and whether the strength and the wind-withstanding
capability of the pole meet the design requirements. Check the necessary devices and
auxiliary materials and negotiate with the user for specific wiring for the main feeder.
As to the installation of the antenna support, the equipment supplier puts forward
requirements for the antenna structure and dimensions, while the network operator
completes the installation as parts of the equipment room accordingly.
The network operator is also responsible for the installation of the antenna feeder
installation environment such as the outdoor cabling rack, the lightning arrester, the
lightning protection grounding peg, and the outdoor lightning protection grounding
cable. The installation of the main feeder entry window requires the holing operation
on the wall or roof of the building. It may deal with the infrastructure of the equipment
room and should be implemented by the network operation, as a condition of the
equipment room.
10.1.3 Checking the Safety Measures
Caution:
Operators on the tower must wear safety belt. Persons under the tower must wear
safety helmet. Never climb the tower with loose clothes and slippery shoes.
1. Emphasize the safety precautions to the engineering staff.
2. Arrange the outdoor construction of the antenna feeder at daytime in clear
weather and without strong wind.
3. Set up distinct marks at the engineering site to keep off people irrelevant. The
persons under the tower are responsible for supervising the irrelative persons,
especially kids, to be away from the construction field. The tools used on the
tower, which may drop and injure the persons under the tower, must be treated
seriously. For example, the tools and metal installation parts are cased in the
canvas bag securely once they are not used. The canvas bag keeps enclosed
unless a tool or part is to be taken out.
Summary of Contents for ZXC10 BTSB I1
Page 4: ......
Page 16: ......
Page 22: ... ii Table C 2 1 BTSB Board Indicators C 2 ...
Page 76: ......
Page 91: ...Chapter 7 Cable Installation in Cabinet 7 15 Fig 7 3 5 RF Cable Interface in RFS ...
Page 96: ......
Page 106: ......
Page 114: ......
Page 157: ...Chapter 12 Board Installation 12 11 Fig 12 5 1 Positions of Boards ...
Page 158: ......
Page 174: ......
Page 180: ......