Discuss RCD Protection on 3 phase in the Commercial Electrical Advice area at ElectriciansForums.net

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Hi all,

I have a customer who has a farm and they are using a 3 phase roller mill outside, the mill has a DOL attached to the side and the cable from this is trailed indoors and plugged into a 32 amp 5 pin socket in the barn.

The socket is fed from the 3 ph DB via a 16a MCB (c type) the DB has a 100a main switch.

My questions are is this acceptable? I assume this should normally be wired as fixed equipment via an isolator etc for indoor use, what is the best way to offer protection for use outdoors?:confused:

I am assured that the mill is only used in dry weather and kept covered over to protect the motor & DOL etc.

Your help would be greatly appreciated.

Mark
 
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