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Is it ok to do insulation resistance test on RCBO at 500v?

I know you are not supposed to do a insulation test on circuits that are protected by an RCD at 500v because it may damage the electronic components inside the RCD so that's why you switch the RCD off before you test the individual circuits, however, what if the circuits are all protected by...
- David345
- Thread
- Nov 11, 2020
- dead test domestic testing fault finding insulation insulation resistance insulation resistance test insulation resistance testing ir test live test rcbo resistance test test and inspect testers testing testing and commisioning
- Replies: 6
- Forum: UK Electrical Forum
K
AM2 testing

Hi everyone, a few questions here Ze: In the AM2 is it just a 2hi test between L1 - Earth, L2 - Earth and L3 - Earth. Then take the highest reading out the three? and while doing that take the PEFC reading at the same time? after reconnecting the Main earth would I record my test result...
- kingkai
- Thread
- Aug 24, 2019
- am2 earth fault loop impedance live test pefc pfc pssc testing
- Replies: 36
- Forum: Electrical Testing & PAT Testing Forum
J
How do you live test an off peak CU ?

I've changed an off peak CU that had fuses in it to a board with Mcb's . does anyone know how to get around the problem of there being supply only at off peak time or would it be permissable to note it in limitations ?
- jonthesparks
- Thread
- Oct 6, 2011
- live live test off peak test
- Replies: 3
- Forum: Periodic Inspection Reporting & Certification

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