Have you thought of the Surewire system?Surewire are pre-wired maintenance free lighting electrical junction boxes that have been designed and developed to be a replacement for single junction boxes, the loop-in ceiling rose system and downlighter junction boxes.
Any opinions as to which is best?
I have tried both, and I think the Ideal connector levers are more secure than those on the small Wago 221 version.
On the new small Wago 221 connectors, I have found the levers tend to lift easily.
I have read somewhere, (but I can't locate the source), that because the RCBO's electronic control operates at a very slightly higher potential than earth, there is a very small leakage to earth through the functional earth lead.
Is this correct or is my memory playing tricks?
Thanks.
My thoughts were if buying a new tester it should be accurate.
I won't need traceability to national standards since it won't be used to certify anything. Periodic sanity checks could be done on a known circuit resistor.
Regards,
Mike.
I am looking at buying an earth leakage clamp meter AMECaL ST-9810 (£59) or a Megger DCM305E (on offer at £194).
The only use will be mainly domestic fault finding.
Any opinions will be most welcome.
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