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actually I have 3 years experience on tools and are best part qualified as a sparky, I'm venturing into inspecting and testing,and with my present employer will be conducting or should i say participating with said tests. my experience with three phase is limited and i just wanted some idea if...

hi I could do with some help how do you recogfnise what kind of type opf 3phase system is present in an installation i.e. tnc-s, tn-s single phase I know,but three phase i don't - some pics or links would be great

hi guys. my boss has gone away for a month and has left me to carrying on first fixing on a new job. well the site manager from the previous site has contacted me about the main entrance door not locking properly i.e. the hinges or whatever they are onb the lock that is controlled by the...

I have a hand out from college that covers all about fault finding and most likely causes of - post your e-mail address or something and I'll forward them to you. ________________________ Lynda, moderator please note forum rule 7

An insulation resistance tester needs to be able to supply an output of 1mA at the required test voltage? Can someone please tell me why. I've checked all my books, including GN3, Regs, OSG, and I can't find the answer to my querry Thanks in advance

How long should a D-lock "test" be applied for i.e. how large a current should I apply in D.C to be able to perform an Earth Loop Impedance Test? Thanks in Advance

Thanks for that. I'm a third year apprentice and I could'nt for the life of me find anything on "Soft Testing" in any literature I own including GN3, OSG, REGS Thanks Again

When if doing a soft test on an rcd protected ring how long doe the test have to be taken for? 20mS? 30mS? 40mS? Thanks in advance

Anymore other ways just for future reference. By the way I'm on my second year... and I like to be able to know how to solve a problem before I encounter one. Thanks in advance

A D-Lock is that the meters with the ring at the top? and what is EFL Soz, bit confused Thanks tho

I was undertaking eath loop impedance tests on my sockets today, and the RCD keeps tripping out before I can get a reading. Any ideas? how I can get my readings Cheers

Vapour Proof Conduit can I use normal PVC conduit in an area where there is the possibility of Sparking or should I use normal steel conduit? Will I need to buy special glands/ grommets/ couplers? Thanks in advance

Hi I'm spuring off a double socket in my garage (5A Switched Spur) to a transformer and from the transformer to an inspection pit. Now I know that at the moment my sockets in my garage are 1metre off of the floor. Should I install the transformer to the same height? The transformer will...

If the room has no bath or shower, what is it exactly that makes it a bathroom? Sorry I meant toilet. Is this an existing switch or a new one? Are you supplying the fan from the lighting circuit, or another one? Does the fan have a timed overrun feature? Yes it does (timed overrun...

including an isolating switch thank you

Can anyone please direct me to a diagram on how to wire into a one way one gang switch an extractor fan for a bathroom (no bath or shower) please. I've looked in reference and cn't find anything Thanks in advance

afraid to say but it has to be a brick structure, probalbly the size of a double garage. Anyone help Thanks in advance

Well, my father has decided to start his own handi-crafts busines at the ripe old age of 55! Which is really cool, he's wanting to build a detached garage/ come shed come workshop, on the side of his house to operate his business in. I'm a trainee sparky (you get what he wants from me)...

what size is the light fitting i.e. 20watts, etc then total the number of lights on yopur lighting circuit for the area you wish to install. i.e if outside kitchen wall, whats the number of lights/ downlights on that room and is it on its own circuit? Post back the info ________________...

was the one who spotted it today, my gaffer who has nearnly 40 years experience said he'd never heard of it before (makes you wonder does'nt it). The chippy says the roof may have to be rebuilt in the area effected i.e. most of it! as in left in present condition the roof could come down in...