Insulation resistance test on shower!!

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Can somebody help me please.... I am Studying inspection & testing and loooking to get part p registered. I am confused when bringing this to real world testing... when doing an insulation resistance test on a shower circuit protected by a 63A 30ma RCCB external to the consumer unit, would i need to leave the rccb on in order for the whole coircuit to be tested???
 
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I would love to know how you will conduct an insulation resistance test on a live circuit!
 
Can somebody help me please.... I am Studying inspection & testing and loooking to get part p registered. I am confused when bringing this to real world testing... when doing an insulation resistance test on a shower circuit protected by a 63A 30ma RCCB external to the consumer unit, would i need to leave the rccb on in order for the whole coircuit to be tested???

It wouldnt be a live circuit! where did you get that from?

From your original post in red

I can only assume you mean do you leave the cct connected - answer no - you would disconnect conductors from RCCB to carry out IR test
 
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Ok thanks but what about the cable that runs from the rccb to the mcb and consumer unit, thats part of the same circuit nd would need to be tested to wouldnt it??
 
Disconnect the RCD and connect L-L and N-N, leave the CPC's in the earth terminal.
 
whats confused me is that i was told the test could be done from the consumer unit and the RCD wouldnt be affected but and RCBO would in which case i would disconnect the cables and do the test, but in the case of the RCBO it would run straight from the CU. I appreciate anybodys help
 
Thanks GaryMo, I pressume i would use a connection block for L-L and N-N
 
Its for an EIC, In my 2391 training it only specifies regulations and PIR's, but in the real world a consumer unit doesnt always have an RCD, and in my case this shower has an RCCB in its own unit.....
 
You must remember not to terminate the shower switch if it has a neon unless it can be easily disconnected. If it can't then link out the switch too.
 
The shower doesnt have a neon, it is like a cooker switch which says "ON" when its on. I dont think showers definetly need neon indicators as long as they have a double pole switch? i aprreciate your help on the RCD though, obviously for a continuity test the rcd could stay on for this
 
No worries Danny, it was more a case of if it had a neon.
Good luck with your 2391, it's nowhere near as bad as many make out, in fact you'll come out of the written and wonder what all the fuss was about!

Continuity (of protective conductors)? If so then yes, just connect line and cpc at CU and measure at the shower (test method 1).
 
Take care and good luck with your work, your obviously NOT one of the many cowboys out there!! :D
 

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