Discuss Conduit Support in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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Looking for some advice if anyone can help.

I've been asked to install sockets in a new build business unit. The company deals with software imaging - lots of computing power but no machinery, tools, etc.

The place is pretty much a standard build with a number of heavyweight vertical RSJ's cross-hatched with U-shaped, mild steel beams onto which a potential plasterboard wall could be fixed. The client is leaving this open, though, so I was hoping to hole-cut through the steel beams and run a 20mm plastic conduit through from one end to the other in an L-shape from the CU on one wall a total length of around 20m.

I'm running a radial circuit for four twin sockets as they are all being placed on this one run. Trouble is, the regs say that rigid plastic conduit has to be supported at 1.5m intervals for a horizontal run, and there's approx. 2m space between these. So, i'm considering fixing a 3x1/2" wooden plate along the length of the wall on top of the steel uprights and then fixing the conduit to that. Steel conduit or tray are options, but I'm trying to keep the price as keen as I can. Can anyone suggest another method?

Thanks

Must be a new regulation that as it is not in mine

Also as you say that this radial is going to be provided for IT equipment do you think that your radial design of 4mm conductors and I assume that is a 4mm CPC and not perhaps even a 2.5mm is perhaps the best
 

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