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It has a "tester" sound to it.
Yeah close enough eh
Discuss Insulation resistance test on a ring final circuit in the UK Electrical Forum area at ElectriciansForums.net
It has a "tester" sound to it.
0.5mA not much to munch on.500v/1MΩ minimum how many amps is that?
0.5mA not much to munch on.
I know it's a test done on an deenergized board/circuit but you still send 500V through the circuit so it's kind of live.
Sorry mate, I'm not a linguistics engineer, what's the principal difference between "sending" and "applying" in this context.
So you virtually can't get a shock from it?
Back in the day when pretty much everything I did was pyro or steel there were hours of entertainment to be had charging up pyro's prior to your mate second fixing.You can also get the same little shock from a cable which has been IR tested (if the IR is very high) as the cable acts as a capacitor and stores the charge. IR testers automatically discharge this stored charge from the cable if you let go of the test button before disconnecting the leads, it only leaves the cable charged if you disconnect the leads with the tester latched on.
Back in the day when pretty much everything I did was pyro or steel there were hours of entertainment to be had charging up pyro's prior to your mate second fixing.
Who provided that jug of cold water, Dave?Pyro always gets associated with this, but it is equally possible to do with any other multicore cable.
It's very entertaining until you forget and touch one of the charged cables yourself.
Can anyone say if the term 'ring main' was EVER actually, officially, used as a term for a ring final circuit, according to regulations.
The term was used in general (and still is to some extent). I served my time with it, but, even in the 14th edition regulations, the circuits are referred to as ring final sub circuits. I'm sure they were known as RM's when I was at Tech and it was certainly never insisted upon that we refer to them otherwise.
It seems it was just an accepted term.I don't believe it has ever been the correct terminology for the ring final circuit.
Ring mains exist in gas, water, HV distribution and LV distribution but I don't think it has ever been used for LV final circuits.
Reply to Insulation resistance test on a ring final circuit in the UK Electrical Forum area at ElectriciansForums.net
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