Huawei Airbridge cBTS3612 Installation Manual page 39

Installation Manual
Airbridge cBTS3612 CDMA Base Station
A.2.5 Treatment of the Wall and Roof .......................................................................A-3
A.2.6 Dustproof Requirements of the Equipment Room .............................................A-3
A.2.7 Shock-proof Requirements ..............................................................................A-3
A.3 Design Requirements for Power Supply of Cabinets...................................................A-4
A.3.1 Estimates on the Equipment Power Consumption.............................................A-4
A.3.2 Power Supply .................................................................................................A-4
A.3.3 AC Power Supply ............................................................................................A-5
A.3.4 DC Power Supply............................................................................................A-5
A.4 Illumination and Lighting Requirements......................................................................A-7
A.5 Air Conditioning and Ventilation .................................................................................A-7
A.5.1 Humidity and Temperature ..............................................................................A-7
A.5.2 Calculation of the Equipment Heat Productivity ................................................A-8
A.5.3 Air Conditioning Capacity ................................................................................A-8
A.5.4 Anti-Interference Protection .............................................................................A-8
A.6 Fire Fighting ...........................................................................................................A-10
A.7 Lightning-Protection and Grounding System ............................................................A-11
A.7.1 Lightning-Protection and Grounding ...............................................................A-11
A.7.2 Grounding Bars .............................................................................................A-12
A.7.3 Cabling Rack ................................................................................................A-13
A.7.4 Grounding Lead-in, Grounding Pole and Grounding Resistance......................A-13
A.8 Design Requirements for the Environment Monitoring System of Equipment Room ...A-16
Appendix B Grounding Regulations................................................................................... B-1
B.1 Functions of the Grounding System ...........................................................................B-1
B.2 Composition of the Grounding System .......................................................................B-1
B.3 Underground Network of the Building.........................................................................B-1
B.4 Indoor Part of the Grounding System .........................................................................B-2
B.4.1 Grounding of the Equipment Room..................................................................B-2
B.4.2 Grounding of the AC Power Supply..................................................................B-3
B.4.3 Grounding of Cabinets ....................................................................................B-4
B.5 Outdoor Part of the Grounding System ......................................................................B-4
B.5.1 Outdoor Grounding of the Building and the Steel Tower....................................B-4
B.5.2 Grounding of the Antenna and Feeder System .................................................B-5
Appendix C Installing Grounding Bar................................................................................. B-1
C.1 Introduction to Grounding Bar ...................................................................................B-1
C.2 Installing Grounding Bar............................................................................................B-1
C.2.1 Installing the Indoor Grounding Bar..................................................................B-1
C.2.2 Installing the Outdoor Grounding Bar...............................................................B-3
Appendix D Installing Cabling Rack ................................................................................... D-1
D.1 Structure ................................................................................................................. D-1
D.1.1 Cable Trough................................................................................................. D-1
D.1.2 Parts of Cabling Rack .................................................................................... D-3
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