welding circuits and a designated ladder cable tray requirements

[cmelguet]

Hi,

NEC 2011, article 630.41 and 392.10 (B)(1)(b) requires for welding cable to be run on a dedicated cable tray.

My question: i have and MCC which supply power to the 63 Amps welding socket, 100 m away. I will use cable tray and conduits to run the cable from the MCC to the welding socket. This mean i have to used a dedicated cable ladder to run this cable?, Why cant i use the same ladder we used to run cables to motors in the same area of the welding socket?. Whats the point on the requirement of the article 630.41?

Regards.

 

[stookeyfpe]

You may want to consider asking this question in the IEEE forum. The audience is more oriented towards the details in the NEC.

 

[HTNeighbors]

The NEC Articles referenced are for 'Welding Cable' not necessarily the feeders for the welding machines. Welding cable must be installed as noted, but you certainly don't have to use welding cable to feed your power circuit to the machine. 'Welding Cable' is referring to the secondary cables from the welding unit, most commonly referred to as the welding leads.