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wersolaruk
No concept?
They really don't bend me over mr Skelton
No concept?
Never said I would have a rcd at both ends, either a mains switch at mains with a local rcd in garage or rcd at mains with main switch in garage. So there would only ever be one rcd. Am no fool so please don't make out or judge my competence engineer54 I several years experience from bms, hvac inverter drives, trend plc programming from running a 56 flat domestic installation. I am no dummy but far from the best and always look to learn more
Is RCD needed at both ends of armour feed to outbuilding
If you had two 30mA RCDs at each end of your sub-main, there is no guarantee which one would trip first, or even both would trip together, this means they won't discriminate with each other.
I usually prefer to have the RCD local (in the out building), as it is more convenient to re-set if it trips, instead of having to walk (possibly in darkness) some distance away to re-set.
Never said I would have a rcd at both ends, either a mains switch at mains with a local rcd in garage or rcd at mains with main switch in garage. So there would only ever be one rcd. Am no fool so please don't make out or judge my competence engineer54 I several years experience from bms, hvac inverter drives, trend plc programming from running a 56 flat domestic installation. I am no dummy but far from the best and always look to learn more
I was just stating that a napit assessor had told me to when doing a garage or outbuilding installation u had to use a earth rod for the earth in the garage, I would of normally brought a 3core swa across and used a core for the earth. I just gave a brief description of how I would of done the job, then all hell broke loose
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I had a NAPIT mcs assessor attempting to give me a non-conformity for not bonding the PV array frame to the MET on a system using an isolating transformer inverter.I was just stating that a napit assessor had told me to when doing a garage or outbuilding installation u had to use a earth rod for the earth in the garage, I would of normally brought a 3core swa across and used a core for the earth. I just gave a brief description of how I would of done the job, then all hell broke loose
Yeah my napit assessor is a spark and to be fair he knows his stuff and generally asks me some good questions which I always have to go and pull my regs book from its holster. But this earth rod thing just got me thinking why? Surely taking a earth from met is Not going to create a major increase to the pfc via a additional parallel path or am I totally wrong here
It's just a bit crack, it's a forum after all ! I honestly cannot stand people for a disgusting attitude chill out