We have had 2 metal steps installed to cover main supply cables (out to flats) from a Ryefield .
when measured IR from MET to steps i got 0.091 MegOhms.
The usual calculations are for when a 30 ma RCD is protecting (which is not the case here)
91 Kohm is above the usual value of 23 Kohm I...
what’s your guy’s opinions on metal panel locks on fibreglass/plastic enclosures. The reason for asking is I’ve seen a few of these enclosures fitted with metal locks and I know the likely hood of the lock being made live it extremely low but would you still class the locks as exposed conductive...
I'm a bit out of touch re 18th edition.
Is it really necessary to fit loads of additional metal saddles inside trunking when it's only 400mm above the concrete ground floor of a sports hall?
All the stuff about premature collapse makes sense, but where, in this case, if the cable going to...
hi guys probably been asked a thousand times before but i wanna change plastic light switches on wall to metal ones but there are only 2 red wires inside metal back box with no earth wires so do i need to stick with plastic switches?
Hi guys looking for advice here,
Voltage on light casing!
Just been out and bought a new light fitting (I will attach the photo of said light) simple 2 core and earth terminal connections.
After install i wanted to check the lower ring of the light to see if it had earth continuity from the...
Hey All,
So query I have had for a long time is this:
Why supply special entry glands for a metal unit (top and bottom) to help stop the spread of fire/dust ingress/water/fingers etc
then go and have a bloody great big knockout at the back which only needs a grommet strip to protect the...
Hi guys
I'm after some advice please on with 18th edition and requirement of fixings.
I'm wondering what fixings people are using in brick,thermalite and concrete with rebar??
Also do your change your fixings depending on type of clips used like cleats for example??
Thanks
Hi,
I have just had work done but not sure if this is acceptable as i am having doubts.
I have an existing 10 way 'Plastic' consumer unit, fitted in 2004.
Electrician has now added a new 2 way METAL unit to feed the dormer Ring mains and Lights & the tails are fed to inside the old 10 way...
While adding come circuits to my garage I realized that some existing circuits were not done correctly. These are 240v 30 amp circuits to run power tools ( tablesaw, bandsaw ...etc ) There is 10ga 2 wire romex ( so black, white, bare copper) feeding a metal box holds a 240v receptacle...
What is everyones opinion about fridge magnets being used on a consumer unit? I understand edi-currents and that it’s not recommended, but is there solid reasoning why?
Just for some context, I work for a large housing association in the West Midlands UK completing the electrical safety...
In a communal electric intake room for flats (meter room) there is lots of bonded trunking and tray, also the metal door frames were found to have extraneous parts linked to earth , these have now been bonded.
They have now fitted a metal floor , i have not conducted a IR test to earth as yet...
So, my brother just moved into a 1980s built semi and some of the dimmers werent working and some other stuff needed replacing like cracked sockets.
He wanted brushed chrome so being a fairly new build I though easy no problem...
Just dropped down a few of the dimmers , one of them being an...
Hi all, hoping everyone has enjoyed their bank holiday weekend. I hope this post goes in the right place as I've just joined. I'm looking to swap a two way light switch and two double plug sockets from bog standard plastic ones to stainless steel ones, the existing wiring (old colours) has an...
Im after a metal clad 1g switch plate with a 1g switch and em light test key switch on same plate. Doesn't seem to be one anywhere. I know I can use a grid switch or Scolmore Click. Anyone know why this is?
I want to PAT a coffee machine. It has a sealed plug; no class 2 mark; a round
cable that suggests twin and earth; and no visible metal. Please how should
I proceed? thank you.
HI all,
I need to bond metal stud work on new build houses, 4mm from socket to an upright, uprights have roof baton for noggins, then socket screwed to the baton, does the bond need access for testing at all?
I'm looking into metal noggins for continuity,i think it will be better, just...
I have a customer who has installed a second empty meter cabinet for a consumer unit to feed several garden circuits. Can a standard metal csu be fitted in here, does it have to be in an ip65 enclosure also or can a ip65 plastic csu be used.
I get csu has to be non combustible within a dwelling...
I have seen a few metal back boxes that have no earth terminal lug. Do the regs state the metal back box must have an earth wire to it? The earth on the socket/FCU is earthed to the backbox via the socket faceplate securing screws.
Hi . Im running some conduit , a long horizontal with metal clad boxes , with vertical runs to a term box for light fittings and a couple of smoke alarms . Was going to use 4 way boxes dropping down to the sockets and up to the light s. Is it acceptable to run them through the metal clad boxes...
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