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Type A rcd . EICR coding ? etc

aligarjon
Hi Guys.   Not been on for a long time, just had a bit of a search and couldn't really find anything so thought i would ask and see what you all thought.


1.  Are we or will we be coding type AC rcd's if there are LED's or induction hobs, lots of electronics  etc  present.

2. How much DC leakage does it actually take to saturate an rcd and cause  problem?

3. How much does a standard LED lamp or induction hob  leak ?

If we test an AC RCD with no load and it's fine then re-test it with all LED lights, induction hobs etc turned on and it operates correctly could we then say that it is ok with a note on EICR  OR EIC if installing any of the above.  


Obviously also on an EICR if the RCD then doesn't operate with it all on it becomes a C2 ?


Any thoughts



Gary
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    It is somewhat interesting to look at those Andy, but you will notice that we are now protecting against faults AFTER the appliance rectifiers, causing leakage to Earth. All of these faults are of a double fault kind, in other words, the fault and the lost Earth connection must both be present to present a trip scenario to prevent danger. If the Earth is satisfactory there is no danger to persons touching anything. Why are we doing this? Appliance faults are nothing to do with BS7671, and the appliance standards should be the ones providing protection. This is feature creep of a fairly major kind, and should NOT be addressed by the fixed wiring standards. It suggests the failure of class 2 products or class one products with an open circuit Earth connection. These are very rare and show a complete change of attitude to product design. Is this an influence from China, where standards seem to be ignored? Adequate product internal fusing would see off 99% of these dangers anyway. Again we are addressing the wrong problem.
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  • 0
    It is somewhat interesting to look at those Andy, but you will notice that we are now protecting against faults AFTER the appliance rectifiers, causing leakage to Earth. All of these faults are of a double fault kind, in other words, the fault and the lost Earth connection must both be present to present a trip scenario to prevent danger. If the Earth is satisfactory there is no danger to persons touching anything. Why are we doing this? Appliance faults are nothing to do with BS7671, and the appliance standards should be the ones providing protection. This is feature creep of a fairly major kind, and should NOT be addressed by the fixed wiring standards. It suggests the failure of class 2 products or class one products with an open circuit Earth connection. These are very rare and show a complete change of attitude to product design. Is this an influence from China, where standards seem to be ignored? Adequate product internal fusing would see off 99% of these dangers anyway. Again we are addressing the wrong problem.
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