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Just sat this tonight. What does everyone that sat it tonight think of the paper?
Discuss 2391-10 Written Exam - 01/12/11 in the Electrician Courses : Electrical Quals area at ElectriciansForums.net
Just sat this tonight. What does everyone that sat it tonight think of the paper?
What was the special location that cant be connected to a TN-C-S system??
Q1 I think was the list on page 17 of GN 3?
Q4 was something along the lines of why do we do an initial verification:-
1, Confirm installation/circuit complies with designer's intentions
2, Designed, Installed and Inspected & Tested to comply with BS7671
3, Not damaged so as to impair safety
Just seen it in some notes, not sure where it came from though as nothing in GN3.
Don't you have to add a x1.2 correction factor to the volt drop formula to allow for the rise in temp when the circuit is under load?
Good luck to everyboby, only a couple of months to wait.
v drop Q.... was it.... (R1+RN) X Ib
0.38 ohms x 30A = 11.4 ???????
250 v for surge protection
What did you all put for the two types of instruments that mease phase sequence - i werent sure if it was trying to get the two types of phase sequence testers in i.e the indicator and the digital one something along them lines
all though i just guessed the other one as a method of polarity i.e low resistence(reading) oh meter for DEAD and approved voltage indicator for LIVE
also i think i cocked up on the R1 + R2 on the lighting circuit as i didnt include the photocell just put the extremity of the circuit test r1+r2 and so on
Same here with the Q1 and 4, tht threw me a bit, then Q5 two things about the supply tht only find out from the supplier, I put frequency and earthing arrangement. section B I screwed up on ze test forgot it was a three phase board duh. Guess i'll be sitting it in Feb then lol
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