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GB 51120-2015 通信局(站)防雷与接地工程验收规范(英文版)

更新时间:2021-04-20 11:24:33

最新章节:Explanation of Wording in This Code
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Announcement of the Ministry of Housing and Urban-Rural Development of the People s Republic of China

Foreword

1 General Provisions

2 Terms

3 Basic Requirements

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4 Earth-termination System

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4.1 Earthing Electrode and Earthing Grid

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4.2 Earthing Lead

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5 Direct Stroke Protection System

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5.1 Air-termination System

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5.2 Down-conductor System

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6 Equipotential Bonding

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6.1 Earthing Busbar and Main Earthing Omnibus

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6.2 Earthing of Facilities

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6.3 Earthing Conductor

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7 Earthing and Protection of Cables

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7.1 Feeder Line

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7.2 Entry Cables

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7.3 Signal Cables

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8 Surge Protective Device

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9 Acceptance

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9.1 Follow-up Acceptance

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9.2 Final Acceptance

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Appendix A Measurement of Earthing Resistance

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Appendix B Follow-up inspection Forms for Lightning Protection and Earthing for Telecommunication Bureaus(Stations)

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Explanation of Wording in This Code

更新时间:2021-04-20 11:24:33

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