Hi everyone. I am really puzzled by this, but I suppose there is an obvious answer / reason!
Anyway, Table I1 in the OSG says the mΩ/m value for copper with a CSA of 25mm2 is 0.727. However, when I calculate the R value using the formula: I get 0.688... Does anyone know why the values aren't...
I did a domestic installers course around 10 years ago (blimey time flies!). This is a level 2 qualification. I then registered with Stroma who fully accepted the course as being a sufficient qualification. All Stroma CPS members are now with Napit. I have had one assessment with Napit, they...
I live in the UK but really admire some of the interior lighting in Spanish houses etc. In particular nice bright LED panels often found on kitchen ceilings. Not marvellous aesthetically, but they give a really useful, bright light. I can't seem to find anything resembling that online here...
Struggled with this yesterday & cocked up, would it still be ok to leave this & mark the appropriate terminals differently.
Load in the wrong terminals,it’s a 35mm Swa sub main, still got tails to connect into
Can anyone please tell me how to wire 3 8Pin relays together? Those 3 relays are for access control controlling the doors, so when the fire alarm triggered will disenergized those 3 relays and unlock the doors. Thanks
A small domestic job in a new-build yesterday.
Task 1:
Take down 3-spot fitting and install new 3 pendant affair.
Task 2.
Take down another 3-spot thingy, and fit a simple pendant.
What could possibly go wrong?
Task 1:
Where is the switch for this light?
Just this one here.
oh, any other...
Business established in 2006 in the Grantown on Spey area (Scottish Highlands for those who dont know :)) 5 employees at present. Mostly domestic work but a fair bit in the industrial category.
Hi Guys. Firstly, am glad to join the group. Secondly I am very curious to hear from those who have TNC-S as their electrical supply I have 2 questions (1) Are you required to install an earth rod (stake or mesh) on the homeowners property? and (2) what are your regulations regarding its...
I havent purchased one myself yet but has anybody bought one of those cable pulling tongues yet..
A couple of the premium tool brands have them out such as super rod, ck etc... some glow in the dark.
What were your thoughts? I am unsure how useful it really is? how flexible is it?
I use the...
are you one of those people affected by T.COOK .by buying a holiday or flight it a shame a company like that gone ,but who next . I know a spark that booked a family holiday ,he is not happy.
Add a few sockets to existing install....holiday cottage. partition walls, back to back with other sockets. First one went without problem. Onto number 2.
Plug in socket and see to identify mcb..... buzzes constantly.... off, off, off..... hmmm. Not on any of these socket circuits? Turned off...
You know the ones,bolts attached to the back,fit the front,then fiddle with the dome nuts.
Bottom entry,you don’t have achance &1.5 mm cables,I nearly smashed it to bits.
I've been working for a firm for a number of years now with jobs on the side, recently gone full time solo. Everything I've done up until now has been either day rate, or price work.
I'm based in Surrey / Middlesex by the way, most of my work is in the areas surrounding Heathrow airport and...
Hi all,
just wondering if anyone can tell me where I can get a replacement plug as shown in the pic as the foxes have chewed through it. It goes to an AC adapter for chriChris lights .
Many thanks,
Martin
Hi all,
What size is the gap in red please?
In particular, the FFC2 size clips for MMT2 are what I'm interested in, but is it the same dimension for all clip sizes, or can you fit fatter screws in the larger ones?
Thanks, Gaz :cool:
Silly question but, when designing your final circuits did you have to calculate the voltage drop in the main supply cables from the service head to the main distribution board?
I know it will be bugger all but just wondering if your tutor asked this of you?
I was only going to do from the...
Afternoon all...
Just reading through Professional Electrician and got to the article about the self employed chap with the broken wrist.
This poll is just for those self employed as if you're employed you can probably get sick pay.
I'm considering getting this insurance and wondered how many...
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