C3 reminds me of the old C4
Discuss EICR question, OLD AC RCD- code 3 or no code? in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net
Yes i agree it would be remiss....but i see this a lot because the wholesalers were knocking them out cheap to get rid of stock
C3 reminds me of the old C4
Improvement recommended, due to regulatory changes. No work needs to be carried out and nothing is potentially dangerous.
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Whist technically correct, there are many things, in the model forms and other guidance, that suggest that this is not intended, and I have found nothing that backs it up.There is nothing to say a C3 shouldn't warrant and unsatisfactory Report.
That's an interesting way of saying 'covering my arse'Another way to look at this might be that if we do not code an item as C3 because it complied at the time of installation, we are taking away the client's choice to make a significant improvement to the safety of the installation. They would be unaware of the improvements made to the wiring regulations, and of changes that are happening in the world of technology that can both contribute to safety, but also to introduce new potential hazards (in this case the DC blinding of older RCDs).
Coding it C3 at least makes the client aware that an improvement to the safety of the installation is actually an option.
I think the point is C2 is an immediate "unsatisfactory" due to a clearly identified danger following a single fault, whereas C3 are not that dangerous in themselves.But that would be at the inspector's discretion?
Now that you raise this point, I can't help wondering if it is possible to issue a satisfactory report containing a C2?
I think the point is C2 is an immediate "unsatisfactory" due to a clearly identified danger following a single fault, whereas C3 are not that dangerous in themselves.
But if you found an installation where practically everything was so rubbish it merited C3 you might come to the conclusion that overall it is not to a satisfactory degree of safety.
Going back to this point...I then said - in that instance how would you code a voltage operated ELCB- it complied with the regs at the time of the install and you can test it with an RCD tester and the test button works so....
Completely academic now, I know....one of my very old books says the requirement was based on the Ze, if 200 ohms then tripping at <=24v was required and if 500 ohms it had to trip at <=40v.Might be entirely wrong, but I have a recollection that the voltage operated devices had a resistance of around 60 ohms, so about 1.8V on the earth wire to trip it off.
Nonsense, try reading them.Definitely no code, regs are not retrospective.
I’m sure it says on page 1 that they’re not retrospective.Nonsense, try reading them.
Reply to EICR question, OLD AC RCD- code 3 or no code? in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net
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