Discuss 18th edition question in the UK Electrical Forum area at ElectriciansForums.net
I’m asking,I’ve already ticked the answer,so just wondering logically,what do you reckon.with a fault current of 115A, what do you think will trip i 200mS or less?
Yea,I actually ticked the 300 ma,being the max,obviously the ideal would be the 30ma.Is that actually a genuine 18th Ed question or something from online.
Yea that is interesting,20 amp?
nope. you'd have 30mA for final circuits. if you had a 30mA for fault protection, that would contravene the division of circuits and discrimination of RCDs in series.Yea,I actually ticked the 300 ma,being the max,obviously the ideal would be the 30ma.
Yea ,agree just panicked I think,it’s the max,then churned me upnope. you'd have 30mA for final circuits. if you had a 30mA for fault protection, that would contravene the division of circuits and RCDs in series.
You can get an rcd shunt trip that can be set for a range of currents up into the amps.Yea that is interesting,20 amp?
never seen one of them.You can get an rcd shunt trip that can be set for a range of currents up into the amps.
Yea this will be the last I do,done 14,15,16,17 th,this was the most difficultist,its the new regs that disturb you.at my age, i won't be taking the 18th, but if it was anything like 17th, i'd finished in 50 minutes, scored 87%, and that was at the age of 65. i could have done a bit better if i'd taken the time to look a couple of things up, but the pub was open.
Reply to 18th edition question in the UK Electrical Forum area at ElectriciansForums.net
We get it, advertisements are annoying!
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.