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Beijing and Shanghai Chinese Translation Service in The field of Lightning earth


防雷接地   Lightning earth.

1、本建筑预计雷击次数小于0.06次/a，按三类防雷建筑物设置
Lightning stroke times of the building is predicted to be less than 0.06 times/a, and is set up according to grade 3 lightning protection building.

2、屋顶设避雷带及避雷网，采用?12镀锌圆钢，做法详见03D501-3，利用建筑物组合柱内钢筋作防雷引下线，利用两根主筋（?大于12）作一组引下线，上下连通，利用基础底板钢筋作接地极，成闭合环状。（整个结构底板为一个整体，除结构绑扎外，主钢筋纵横交接处尚应焊接。）
Lightning protection zone and lightning protection net are provided on the roof, which adopt ?12 galvanization round steel (for details, refer to 03D501-3). Steel bars inside the combination column are taken as the lightning protection downlead; two main reinforcements (greater than ?12) are used as the downlead and are connected from top to bottom; steel bars of foundation slab are taken as the grounding electrode of closed loop shape. (total structure base plate is taken as a whole; cross connection of the main bar shall be welded in addition to the structure binding).

3、引下线在室外地坪下0.8m甩出1.2m ? 12 圆钢，外侧四角引下线预留检测点。
1.2m ?12  round stock of the downlead shall be lead out 0.8m under the outdoor terrace with check points left for outside foursquare downleads.

4、采用TN-S系统   TN-S system is adopted.

5、本工程做总等电位联结，卫生间做局部等电位联结，参见02D501-2。
The project adopts total equalpotential linking, and the toilet takes partial equalpotential linking. Refer to 02D501-2.

6、保护接地、防雷接地、等电位接地联成一个系统，总的接地电阻不大于1欧。
Protective earthing, lightning earthing and equalpotential earthing are connected to form a system; total earth resistance shall not exceed 1 ohm.

7、电缆桥架、弱电金属线槽分别敷设40×4镀锌扁钢，与总等电位端子箱联结
Cable bridge frame and weak current metal trunking are laid with 40×4 galvanization flat steel and is linked with total equalpotential terminal box.

8、进出楼的上下水管、采暖管、燃气管，采用40×4镀锌扁钢与防雷引下线作等电位连接。
Up and down water pipes, space heating pipes and fire gases pipes in and out of the building adopt 40×4 galvanization flat steel to be equipotential connection with lightning protection downlead.

9、所有竖向金属管道应在地下一层及顶端和底端与防雷装置连接。
All vertical metal pipes shall be connected with the lighting protection at B1, top and bottom.

10、金属门窗、栏杆等较大的金属物应与防雷装置连接。
Larger metal structures such as metal door window and handrail shall be connected with the lighting protection.

11、突出建筑物面的金属构件与构筑物均应与避雷带可靠焊通，屋面建筑装饰物应敷设避雷带保护，屋面露台金属栏杆可以用作接闪器，但必须与避雷带可靠焊通。
Metal ware and structures protruding the building shall be welded throughout with the lightning protection zone.  Ornamentals of roofing construction shall be laid with lightning protection zone protection.  Metal handrail of the roofing terrace could be used as lightning receptor, however it must be welded throughout with the lightning protection zone.

12、所有电气设备正常不带电金属外皮均应可靠接地。
Normal neutralness metal sheet of all electrical equipments shall be earthed reliably.

华译网北京翻译公司翻译过大量有关防雷接地的文件资料。
Beijing Mandarin Chinese Translation Service Company has translated many technical documents in the field of Lightning earth.

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