Portable earthing and earthing short circuits - Photo ID 84917 

Portable earthing and earthing short-circuit are used for temporary earthing of electric power and rail transit during
overhaul construction to ensure the safety of workers.
Performance Standard: DL/T879 -2004 portable earthing and earthing short circuit equipment for live working�¯�¼ï¿½
Material requirements: high purity copper wire, copper purity�¢ï¿½�¥99.999%
Technical parameters: the grounding wire is made of many strands of soft copper wire, the
diameter of the single wire is not more than 0.2 mm, and the surface is covered with
transparent insulating layer (including the grounding wire, where it is connected with the end
clamp of the grounding wire) , the thickness of the protective layer is not more than 1.5 mm.
The installation of the terminal adopts the secondary drawing process. The transparent
sheath of the grounding line is installed in the pipe and the spring is added to form the secondary protection, therefore, the copper wire can not be broken during the use, and the
transparent heat-shrinkable tube is used for the terminal sheath to observe whether the ground wire has been broken or not