雷易

Special grounding lead out device for subway platform

1、 Product Introduction

The grounding lead out device, drawing on advanced foreign technology, consists of several parts such as protective tube, lead out copper bar, fixing ring, water stop ring, insulation filling material, etc. It is a waterproof lead out device specially developed for special systems. The product has been used in the grounding network of subways and urban railways for a long time. When the grounding of subway platform power equipment, signal equipment, lightning protection grounding, and comprehensive grounding network are connected, it can effectively prevent groundwater leakage and meet the requirements of fault current (stray current) protection.

In the subway grounding system, the grounding grid is located below the structural base plate. Due to the protection requirements for fault current (stray current), when the electrical equipment of the subway platform is grounded, it must be connected to the grounding grid through grounding down conductors to achieve reliable grounding. In the past, grounding down conductors were usually led directly from the structural bottom plate or through PVC pipes. By adopting this measure, it is easy to fail to meet the requirements for fault current (stray current) protection, and groundwater is prone to seep out from the grounding lead out line, which does not meet the requirements of subway grounding design. The use of GL grounding lead out device can effectively solve this problem.

2、 Product Features

◆ Specially developed for subway and urban rail

The most advanced technology from abroad, specifically developed for subway and urban rail grounding.

◆ Waterproof and corrosion-resistant

Made of various special materials, waterproof and corrosion-resistant.

◆ High insulation resistance

The protective tube is filled with high-quality modified epoxy resin, anti shrinkage agent, and accelerator, with an insulation resistance of ≥ 20.5M Ω and a water pressure test of ≥ 0.6Mpa.

3、 Product specifications