在地铁接地系统中,由于故障电流防护要求,接地网位于其结构底板下面,因此地铁站台的电气设备接地时,必须通过接地引下线与接地网连接,确保整个接地系统稳定可靠。在地铁接地设计中通常是采取直接从结构底板中引出接地引下线或通过PVC管引出接地引下线。但是这种方案容易出现故障电流防护要求不达标。地下水容易从接地引下线处溢出等缺陷。

In the metro grounding system,due to the requirement of fault current protection,the grounding net is iocated below the structural plate,so the electrical equipment of the metro station must be connected with the grounding net through the grounding down lead,so as to ensure stable and reliable grounding system.In the metro grounding design,grounding down lead is usually drawn from the structural plate or via PVC pipe;however,this scheme may easily cause fault current,unqualified current protection and spill of underground water form the grounding down lead.

金羽牌接地引出装置是依据地铁接地系统的特殊要求而设计开发的。该产品具有高效导电泄流能力、强耐腐蚀性和稳定的密封性能。通过该产品与地铁站台电力设备接地、信号设备接地和防雷接地与综合接地网连接时,在达到杂散电流保护要求的同时能有效防止地下水渗出。

Rentong Ground lead Equipment is designed according to the special requirements of the metro grounding system.This product has efficient electric conduction & diverge capacity,strong anti-corrosionand stable sealing performance.This product is connected with electrical equipment grounding,signal equipment grounding,lightning proof grounding and comprehensive grounding net of the metro station,realizing protection of stray-current and prevention seeping of the underground water.