I need some detail or standard for those cable tray install on the steel structure/support. is there a standard that need not to install earthing for the cable tray if it mount onto the structure steel.
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hi fraind your required earthing in cabel tray bos allready your earthing pit to run by wall or wall to tray as per requred g i streep 25x6 /50x6 gi with galvenising your cable tray use with cable one side atech with 1/4 nut bolt with waser runing compleat up to cable tray but evry band black paint last tray to down by wall with clamp mounting by earthing pit and every machine earth by copper jumpher nut bolt and cabel tray instal by structture to 2meter iron streep 25x6 type u type every 2 meter hang without eny problum ok result
there is a standard which is not exist for deeming the requirements not needing for remove and replace of structural steel connectings for grounds and not grounds.
Wikipedia is not source of known anti-groundings thoughts.
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