Discuss IR testing on CU upgrade in the Electrical Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

Inapplicable could apply to all of the test results for out going circuits when conducting a CU change.
Not all of them as you need to verify that you've correctly reconnected them and that ADS will operate. Certainly some of it may not be applicable though.
 
Inapplicable could apply to all of the test results for out going circuits when conducting a CU change.

As above. Circuit protection is often altered in these upgrades. (3036 to 60898 OCPD's for example) so to confirm ADS, Zs would have to be taken and recorded as a minimum. Additional protection by RCD may well have been added too and these would also need testing and recording to prove satisfactory.
 
I always test each circuit individually and record all Insulation Resistance and Zs values when doing a CU change,as well as the RCD/RCBO operating times,Ze and PSC etc, surely that's the right way to prove the circuits are safe for reconnection ?
 
As above. Circuit protection is often altered in these upgrades. (3036 to 60898 OCPD's for example) so to confirm ADS, Zs would have to be taken and recorded as a minimum. Additional protection by RCD may well have been added too and these would also need testing and recording to prove satisfactory.
If you’re changing from BS 6036 to BS EN 60898, then you should be checking Zs beforehand, especially now we have Cmin.
Yes, if you’ve installed RCDs, they will need testing, because it’s part of the work you have done.
 

Reply to IR testing on CU upgrade in the Electrical Forum area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock