What are the specific regulatory provisions regarding conduit for electrical instrument cables?
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Recently, I came across some issues related to inspections: the requirements for installing conduits for cables and instrument wires, such as those related to burial or passing through walls, as well as requirements for sealing ports. There are also many requirements regarding the material of conduits in explosion-proof areas. I would like to ask for your help here – what specific guidelines are available to guide the process of running cables through ducts? Also, should a wire conduit be called a “guide tube” or a “sheath”?
For the wiring of instruments through pipes, reference should be made to HG/T20512-2014 \"Design Code for Instrument Piping and Wiring\"; for cables, GB50058-2014 \"Explosion Protection Code\" and GB50217-2007 shall be used as references
A small correction: GB50217 has been updated to 2018:P
Thank you very much:handshake