3 phase Cooking Appliance

[timo]

Just been asked to quote for running new supply & connecting a 3 phase cooking appliance in a small bakers. Don't really do much with 3 Phase so just a quick question.

DB has 3 phase 3 pole breaker spare and the run is around 40-45 meters away from the DB
Done a quick calc and the SWA needs to be 6mm 4 core. Whats a good isolator for the other end would you say? Also since this is fixed equipment and am i right it doesnt need to be RCD protected ?

thanks

 

[telectrix]

what's the current per phase?

 

[timo]

30Amp per phase

 

[telectrix]

i concur with your cable choice. 4mm is borderline as regard VD. i'd fit a 45A 4 pole isolator local to the cooker. RCD is not required.

edit: and a 32A MCB.

 

[LankyWill]

what do you mean by 'fixed equipment'? ive never heard this phrase

 

[edrobbo8]

what do you mean by 'fixed equipment'? ive never heard this phrase

It's fixed in place, not portable...

 

[davesparks]

Craig and Derricot isolators are the dogs danglies in my opinion.