Regarding the issue of cable tray bridging
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Dear colleagues, during the inspection conducted by our safety supervision department, it was pointed out that the connection plates of our cable trays did not have cross-connections in place. They also failed to provide any relevant standards regarding this matter. After checking online, I couldn’t find any regulations stating that cross-connections are necessary at the connections of galvanized cable trays. I’m curious to know what practices are being followed in your companies Is there any standard to support this? The site environment is Zone 2, a blast-sensitive area.
But it doesn’t state that galvanized cable trays must be bonded together; can it be understood that as long as anti-loosening nuts are used, bonding is not necessary?
Where does this standard come from? Thank you
Doing a ground strap is a simple task; there’s no need to argue about it with experts.
I don’t see the ground wire. Under normal circumstances, cable tray manufacturers include these
The cover plate is secured not with clamps, but directly with wire.
Since experts have raised it, corrective actions must be taken; this is always the case with safety issues. Our factory also carried out such rectifications
GB 50303; however, judging from his screenshot, it seems to be based on the old standard, as the relevant provisions are in Article 11 of the new standard.
Previously on site, it was found that all the tray covers were tied together with wire, without the need for clamps. The supervisor didn’t say anything either