View the thread, titled "3 phase help." which is posted in Electrician Talk | All Countries on Electricians Forums.

ya 5 by 4

just make sure you connect the right end to the cooker-otherwise it'll cool instead of heating


ask the wholesalers to mark the start and finish on the cable
 
im confused.com now. im not sure what u mean by start and end of cable. also every spark ngives a different answer to the cable size and how many amps the cooker will pull. bloddy hell
 
im confused.com now. im not sure what u mean by start and end of cable. also every spark ngives a different answer to the cable size and how many amps the cooker will pull. bloddy hell


lol

He was taking the pish mate !!

Ok, here is how it goes

20a Type c 3ph breaker, 6mm 4 or 5 core (+/-cpc), 45a rotary isolator, 6mm to oven use all SWA and use CW glands(ip rated)

Ill ask again, will there be a catering engineer there to commision as they are a sod !
 
thanks mate. i only av to supply up to the rotary switch.iv got 16mm cable 4 core ans seperate 16mm earth wire. we bought 16mm as we were gona put a 3 phase board as the owner also wanted a 3 phase chiller. so my cable is too big but who cares, im not paying 4 it. tanx. wat tests will i need to do on that install


lol

He was taking the pish mate !!

Ok, here is how it goes

20a Type c 3ph breaker, 6mm 4 or 5 core (+/-cpc), 45a rotary isolator, 6mm to oven use all SWA and use CW glands(ip rated)

Ill ask again, will there be a catering engineer there to commision as they are a sod !
 
thanks mate. i only av to supply up to the rotary switch.iv got 16mm cable 4 core ans seperate 16mm earth wire. we bought 16mm as we were gona put a 3 phase board as the owner also wanted a 3 phase chiller. so my cable is too big but who cares, im not paying 4 it. tanx. wat tests will i need to do on that install

R1+R2 and Ir mate, only IR to the rotary switch and im afraid you have absolutely no chance of getting 16mm 4 core terminated in the oven, i would buy a 3mtr length of 6mm for that!

I hate to keep asking but who is commisioning the oven ?? because these things need setting up by the installer on first power up, and involve all sorts of set up and calibration, i know on the far superior Rationals it takes about a hour and thats if you know what you are doing!

What size breaker do you have for this and what type is it??

Also the cable from rotary to oven will need to be 5 core as there is absolutely no way of terminateing a seperate earth to these ovens! having said that most ove these ovens are 3ph only and do not require Neuteral, if this is the case do away with the 16mm supp earth, and use the 4th core as cpc, again all of this needs confirming before arrival on site
 
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