GB 51120-2015 通信局（站）防雷与接地工程验收规范（英文版）.pdf
- word版文件下载：
-
特别提醒：word版是本站通过人工智能从pdf转换成的word版本，正确率只有90%左右（正在通过训练继续提高准确率），排版恢复的也并不完全准确，没有进行任何人工校对，VIP会员直接免费下载即可，普通会员无法通过点数下载，算是给VIP的活动。
特别提醒：word版是不完美的，错误较多，只能参考，有需要的可以少打一些字，别下载了找我们说word内容有问题，这是送给VIP会员的。
- 文档部分内容预览：
GB 51120-2015 通信局（站）防雷与接地工程验收规范（英文版）
4.1.14 The earthing resistance or the size of earthing grid shall meet the engineering design requirements.The earthing resistance shall be tested with the method specified in Appendix A.
4.2EarthingLead
4.2EarthingLead
5 DirectStrokeProtectionSystem
布线标准6EquipotentialBonding
6EquipotentialBonding
EarthingBusbarandMainEarthingOmnibu
6.3Earthing Conductor
.1Permanent marks shall be set somewhere close to the terminal of the earthing conductor, rk shall also indicate the position of the other end. 2It is strictlyforbidden to install any switch orfuse in and between earthing conductors.
EarthingandProtectionofCables
ZlFeeder Line
earthing conductors, the metal sheathes of vertical cables or the vertical steel pipes shall be earthed to the nearest lightning strips or earthing conductors atbothends at least. 7.2.8Cables entering the equipment room from the roof and feeder cables of solar cells shall be armored cables,and their armor layers shall be welded and connected to the nearby lightning strips at the entrance.
SurgeProtectiveDevice
9 Acceptance
AppendixAMeasurementofEarthingResistance
the earthing resistance is measured with the triangle method,the circuit shall be connected in e with Figure A.0.4.The distance,di,between the current electrode and the earthing grid shall the distance,d2,between the voltage electrode and the earthinggrid,and they shall be greater 2times themaximum diagonal length of theearthinggrid.The included angle is about 30°
0.5In the measurement of earthing resistance of earthing grid,the current and voltage electroo Il be guaranteed to be earthed reliably, and the measuring instruments shall be connected w ulatedwires.Earthing resistancemeasurement shall notbemade immediately after rain
B.o.2Inspection and acceptance forms for earthing connection 1Acceptanceresult.
节能标准规范范本2Inspectionrecord
B.0.5Inspection and acceptanceforms for equipotential bonding 1Acceptanceresult
B.0.6Inspection and acceptanceforms for earthing andprotection of cables 1Acceptanceresult.
B.o.7Inspection and acceptanceforms forpower supply surgeprotective devices. 1Acceptanceresult.
防火标准规范范本B.0.8Inspection and acceptance forms for signal surge protective devices 1Acceptanceresult.
Explanation of Wording inThis Code
....- 通信标准
- 相关专题： 防雷