3.4 Earthing Connection

3.5 Main Earthing Conductor

3.6 Earthing Conductor

3.7 The Types of Equipotential Bonding

3.8 The Accessing Ways of Various Cables

3.9 The Layout Requirements of Earthing Conductor

3.10 The Protection of the Computer Network Interface and Control Terminal Interface

3.11 The Earthing of Centralized Monitoring System and the Interface Protection

3.12 The Layout of Cables in the Bureau

3.13 Power Distribution System

3.14 The Earthing of Auxiliary Equipment in the Equipment Room

3.15 The Lightning Protection and Earthing of Optical Fiber Cable

4 The Lightning Protection and Earthing of Comprehensive Telecommunication Building

4.1 General Requirements

4.2 The Types of Earthing and Bonding

4.3 The Types of Internal Equipotential Bonding

4.4 Earth Grid

4.5 The Earthing of the Cables Entering into Bureau

4.6 The Earthing of Telecommunication Equipment

4.7 The Earthing of Power Supply System

4.8 The Earthing of Other Facilities

4.9 The Lightning Protection Design of Building

5 The Lightning Protection and Earthing of Cable Telecommunication Bureaus（Stations）

5.1 Exchange Bureau and Data Bureau

5.2 Access Network Station and Module Bureau

5.3 Broadband Access Sites

5.4 Fiber Cable Repeater Station

5.5 The Earthing of DC Power Distribution System for Telecommunication Equipment

6 The Lightning Protection and Earthing of Mobile Telecommunication Base Station

6.1 General Requirements

6.2 Earth Grid

6.3 Direct Stroke Protection

6.4 The Earthing of Antenna and Feeding Cable

6.5 The Lightning Protection and Earthing of DC Remote Feeding System

6.6 The Lightning Protection of Earthing of GPS Antennas and Feeding Cables

6.7 Internal Equipotential Bonding

6.8 The Handling of Earthing Connection and Indoor Earthing

6.9 The Earthing of Other Accessing Cables

6.10 The Earthing of DC Power Distribution System for Telecommunication Equipment

7 The Lightning Protection and Earthing of Small Telecommunication Station

7.1 General Requirements

7.2 Earth Grid

7.3 Direct Lightning Protection

7.4 Others

8 The Lightning Protection and Earthing of Microwave and Satellite Stations

8.1 The Lightning Protection and Earthing of Microwave Stations

8.2 The Lightning Protection and Earthing of Satellite Stations

9 The Design of Lightning Over-Voltage Protection for Telecommunication Bureaus（Stations）

9.1 General Requirements

9.2 The Application Requirements of SPD

9.3 The Principles of Lightning Over-Voltage Protection for the Power System in Telecommunication Bureaus（Stations）

9.4 The Installation Requirements of Power SPD

9.5 The Principles of Lightning Over-Voltage Protection Design for Computer Networks and Signal Cables

Appendix A The Statistics Tables of the Average Number of Thunderstorm Days in One Year on Major Cities

Appendix B The Nationwide Zoned Map of the Average Number of Thunderstorm Days in One Year

Appendix C The Requirements of SPD Protection Mode

Appendix D Mesh，Star and Star-Mesh Mixed Earthing System

Appendix E The Test of Earthing Resistance

Appendix F The Measurement of Earth Resistivity

Appendix G Lightning Protection Zones

Explanation of Wording in This Code

List of Quoted Standards

Explanation of Provisions

Instructions of Formulation

1 General Provisions

2 Terms

3 Basic Requirements

3.1 General Requirements

3.2 Composition of Earthing System

3.6 Earthing Conductor

3.9 The Layout Requirements of Earthing Conductor

3.10 The Protection of Network Interface of Computer and Control Terminal Interface

3.11 The Earthing of Centralized Monitoring System and Protection of the Interface

3.13 Power Distribution System

3.14 The Earthing of Auxiliary Equipment in the Equipment Room

4 The Lightning Protection and Earthing of Comprehensive Telecommunication Building

4.1 General Requirements

4.2 The Types of Earthing and Bonding

4.6 The Earthing of Telecommunication Equipment

4.8 The Earthing of Other Facilities

5 The Lightning Protection and Earthing of Cable Telecommunication Bureaus（Stations）

5.1 Exchange Bureau and Data Bureau

5.2 Access Network Station and Module Bureau

5.3 Broadband Access Sites

6 The Lightning Protection and Earthing of Mobile Telecommunication Base Station

6.2 Earth Grid

6.4 The Earthing of Antenna and Feeding Cable

6.6 The Lightning Protection of Earthing of GPS Antennas and Feeding Cable

6.7 Internal Equipotential Bonding

7 The Lightning Protection and Earthing of Small Telecommunication Station

7.1 General Requirements

7.4 Others

9 The Design of Lightning Over-Voltage Protection for Telecommunication Bureaus（Stations）

9.1 General Requirements

9.2 The Application Requirements of SPD

9.3 The Principles of Lightning Over-Voltage Protection for the Power System in Telecommunication Bureaus（Stations）