elo guys, when filling out a PIR on the section about number and type of live conductors do we count the earth in a tncs system.
so for example in a single phase system would we mark this as a single phase 2 wire or 3 wire?
Hi, when determining a grouping factor for a galvanised trunking containing 3 phase tails, and when consulting table 4C1 BS7671 to determine the factor does each phase/tail count as a seperate circuit or are the tails considered in themselves one three phase circuit?
Thanks
Was round a job over the weekend,, asked the customer where the consumer unit was,,,,, led me to the cupboard under the stairs, not really a surprise.... but wasn't expecting this,, !! Lol...!!
Worst I've ever seen,,, !!! Although, it's an old Re-wirable Wylex, probably...
Ok pretty new to fault finding. Went to a property this is my fibdings
Mcb trips NOT rcd
Split ring main tested at socket got 0.22 on l-n insulation resistance on one leg
Tested at board got o.oo on both legs??? Wtf
Circuit has sky lights and underfloor heating on it.
What is the best...
Hi I'm looking on replacing some damaged lid on a dado trunking
the existing trunking is MK VTS1.
can anybody tell me went is the new MK manufacturers code so I can replace the lid
cheers
i wired kitchen florescent loop in method then i took live feed for outside light (flood light with sensor) direct to switch then to light.when i switch kitchen light on the outside light switch come on as well.can anybody help me with this please.
Hi. I need to replace a light switch and have researched how to do it and feel confident I can achieve it. The only thing that worries me is the potential for an electric shock. I'm on a budget and I'd rather not shell out on a mains tester if I don't need to. Also, I've heard they can give you...
I'll start this off, just to see what people reckon....
inner suburbs / downtown - Hamilton Ontario
Just off queen st in Auckland (mate was approached by a bloke with knife in broad daylight - ran away and the would be mugger just stood their gawping)
Some of the smaller villages/towns near...
I'm after a new certification software as I've been using the Napit desktop software, my free trial is up and don't really fancy paying for the renewal.
Anyone using anything better?
personally I think the Napit one is rubbish but I haven't had much experience with any others.
Any help...
This may be of interest...
?Neutral to Earth? faults | Professional Electrician & Installer
and something else to think about...
You've got a circuit additionally protected by an RCD, MCB off, why does chopping the cable with your conducting cutters trip the RCD?
Hi,
just a practical question re the filling on of a 'standard' Dom EICR form..
Take a domestic installation where alongside the main CU at the orgin sit 2 other DBs (later additions just feeding a couple of circuits each, all internal to the house) All 3 are sitting next to each other with...
Hi i have a homework question i am not sure about the question is (word for word)
"State the requirements of bs7671 for pfm may not permit the use of a bs 3036 semi enclosed device as a means of over current protection for this installation"
the only reason i can think of is that the breaking...
Hi all my situation is an awkward one and I need clarification please.
I am an installation/service/integrated electronic security/door access multi-skilled technician - wow a mouthful!
I have been in this industry 27 years - I have 236 pt 1 and 2 I have c+g 185 pt 1 2 3 intruder alarms and 16th...
Hello everyone, wonder if anyone can help me with this, I,ve just installed two outside pir security lights on a 5 year old extention to an existing switched feed from the downstairs lighting circuit, nice neat job, they work fine,
two days later i get a call, "when you switch off the...
ACTUAL PASSPORT LETTER:
This, apparently, is an actual letter received by the UK Passport Office.
Dear Sirs,
I'm in the process of renewing my passport, and still cannot believe how is it that Sky Television has my address and telephone number and knows that I bought a bleeding satellite...
Customer just called me and said his dimmer switch is incredibly hot for his 9 downlights. Also after a while the lights trip..have not yet been to see this was just x what could be out there.
Hi guys, was just wondering if anyone could help me with a problem that I've been having recently.
In my new flat, whenever I plug my laptop in, the electric trips. I then have to go to the RCD and switch it back on, but the problem remains whenever I plug in my lap top.
My question is, seeing...
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