Hi, can anyone give me an idea of what questions are asked at job interviews for a domestic or commercial electrician and what answer you'd give or expect? much appreciated, Bryn
I have lad working with me at present on a outside job really quick learner, good with his hands and uses his head but yesterday he asked why is the primary insulation so tough and why is the copper so brittle in SWA I have never though about it I just accepted it answers, anyone,
PIct
" The supply to the detached workshop has been installed using a two-core steel wired armoured cable (SWA). Describe the most appropiate method of testing continuity of CPC to this distribution circuit "
stop asking “a quick question” as a thread title. You may get someone who has a slight interest to answer.
I can’t even be arsed to open a “quick question” anymore because even though the subject may interest me, 9 times out of 10 it contains utter drivel.
If you’ve something worth asking...
question probably how would you test resistance of electrode on a tt system on a stand by generator.
firstly ask permission and notify the customer that the standby generator will be locked off thus premisses will be with out a back up power supply.
generator isolated lock it off and retain...
hi ya i have a home work question which is:
What additional protection is required on a TT system, justify your answer, Stating what regulation from bs7671 requires additional protection.
I am sure that answer is a rcd but i just cant fine the reg that states that you need a rcd the closest i...
Hi guys,
Just wanted to get your advice on answering a 2391 question.
If i was to get a question "Describe how to carry out an IR test on a radial socket circuit of a new installation" for example , would i be able to mention the safe isolation procedure like this
1)Seek Permission /Inform...
hi guys. if i calculate maximum demand like i got 6 circuit
32a cooker
32a upstairs ring
32a down s. ring
20a,radial
6a upstairs light
6a down stairs light get the higgest one and add the rest together get 40% of it and finally add to highest one.. do u thing is that right??
and also do...
Hi all just replaced oven and cooker hood new for old , replaced hood noticed metal capping run at angle that had been nicked with old screw ? Anyway did IR test etc everything fine, switched both on just to make sure I put my testers from cooker to hood and got 3/4 or 5 volts varying ???? Any...
I've just come across this C & G 2357 sample question & in my opinion after a quick look at the regulations I would say non of the answers are valid or are they just badly worded....or is it just me!
1. Under the Electricity at Work Regulations live working is only permitted:
a) when other...
lister101
Thread
answer
electrical work
live
question
reasonable
testing
working
working live
Have a customer with no heating at all in 2 of her bedrooms ( No gas supply also ) both rooms are around 6 x 3 meters .. Any suggestions for a decent panel/convector heater that will heat these rooms adequately?
Welshsparky
Thread
answer
close
contactor
heater
panel
source
thermostats
i want to know the formula for voltage drop calculation for 3 core x50mm2 hv cable feeding 1000kva transformer 13.8kv. the cable is xlpe ,armored..it is connected from Ring main unit
chance1111
Thread
answer
cable
calculation
electrician
voltage
voltage drop
volts
FIT is link to inflation (RPI). But what would happen if we were to enter a period of deflation? would the FIT reduce or would be be capped at its current level at the time?
Thanks
Am i right in thinking a 600 KVA 3 phase supply is approx 1400 amps per phase.
Read more: http://www.electriciansforums.net/electrical-forum-general-electrical-forum/67069-kva.html#ixzz2BMgYxgmu
well hear i am asking for your help again i really don't know what i would do with out this site and the people who answer the questions i ask
so thanks for all you help
- Which of the following is classed as 'Minor Work'?
a) Adding extra lighting points to an existing circuit
b) Installing...
hi all, can someone if the following answer is correct. would as teacher but 2 days till class.
a coil of inductance of 0.2H is connected across a 230V 50Hz supply. What will be the current flowing in the circuit, if we assume that there is no resistance?
XL= 2pie fL
XL= 2pie * 50 * 0.2 =...
the question i am struggling with is this, im new to the calculating of things and am not sure where to start.
A two core cable supplies two loads from a 230v supply, the first load is 70m from the supply and takes a current of 40A, the second load is 100m from the supply and takes 20A. find...
Hi all in the forum
A tea time discussion has created a non decisive answer, and there is a cup of tea swinging on the solution.
When testing an rcd, should the protective bonding conductors be disconnected? We have agreed to accept the general consensus of this forum as our decisive answer...
Hi
I have seen a couple of posts on this subject but they go back a bit and dont appear to have a definitive answer. I have a MEM Memera 2000 CU, where I need to provide RCBO protection to the lighting circuit to cover some additions I have made in the bathroom. There is already a Eaton 16A...
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