This sould like the perfect response which Ive been looking for thanks!
So let me get this right when doing the IR test on the sockets as it will be on a RCBO I am right in saying disconnect the load side from the fused spur and put the load side into the supply side of the spur. But put it...
Thats great thank you! Can I ask what setting is it set on on the Megger MFT1770 tester I think its called. As in what would you set it to on the test meter to measure PFC. As my exam is monday I dont want to fail on this.
I understand that. I just want guidance to what I am thinking of doing is correct and wont fail the sections as I dont want to resit the am2 test at all etc.
So I would remove the conductors from the RCBO which I understand. But what I am asking is how would you test tripping times of the RCBO as it will be on the lighting circuit. But you cant expose any live parts of the lighting circuit etc. Then you cant expose any live parts on the board...
Hi everyone,
Not going to lie I am crapping my self for my AM2 exam on Monday Morning at 8:00. So I just need a few questions answered:- tell me if I am right or wrong.
I will be using a megger tester by the way.
PEFC testing 3 phase ( 3 probe test) :-
Clamp croc clip on the neutral bar...
I understand that so what I said before is correct with two probe PSCC test Lines to Neutral
PEFC test Lines to Earth.
Also how would you complete RCD testing on a RCBO which is installed on a lighting circuit? I know how to do it for sockets. But not sure how to do it for lights as you cant...
So when I do my am2 I will be aloud to simply use a two lead test on both? PEFC and PSCC there is only RCBO,s which I believe are on the lighting circuit and the ring main circuit. Obvs highest fig doubled and record on the test sheet as Ipf value.
I know there is no place to record it but, the whole point of the two tests is to see under fault conditions if the protective devices installed can withstand the fault current (IpF) and can clear the fault current safely and not blow them to bits.
So on my am2 exam I will simply use the megger...
So testing wise I would do :-
L1-N L2-N L3 -N
L1-E L2 -E L3 -E
I would expext to have 230volts?
Again as you said tick in the confirm supply polarity.
I also have another question carrying out Ipf test you ofcourse have
PEFC ( 3 lead test)
Simply test between Incoming L1- E L2-E L3- E...
I have my AM2 exam and the question I have is how would you confirm supply polarity?
Would you do the following tests:-
L1-L2 L1-L3 L2-L3
L1-N L2 - N L3-N
L1-E L2- E L3-E doing this you should expect 400V reading?
Finally, test Neutral to Earth and expect to be 0 volts.
Would the main...
So another question how would you measure Zs at Main DB if you are not allowed to physically measure but, you have to calculate it using Zs=Ze+ (R1+R2) etc. But, where would you take your R1 and R2 reading etc?
Just baffled.
So I am writr in what I was saying earlier?
That PSCC
Simply test between L1- N L2- N L3-N double highest reading etc
PEFC
L1- E L2- E L3- E the highest value is noted.
I then take the highest figure out of both tests and record this on my schedule of test results etc as Ipf?
Also thanks...
I have just been on the refreshers course for the Am2 exam that I am about to sit on Monday coming. When the tutor was going over PSCC and PEFC. I was confused, completley thrown.
So in my head I would do:-
I would carry out this test on the Incoming Tail side of the 3 phase board?
PSCC:-...
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