definition

  1. W

    Question about the Definition of #6 wiring standards for Thailand?

    Question about the Definition of #6 wiring standards for Thailand as of 2023? I am having a House/Villa built in Thailand and I wanted to wire one room with both 110 & 220 capability? The contractor wrote back and said the cannot provide the 110 volt out let, but that they can wire it with #6...
  2. S

    Escape routes definition

    Hi. Looked at a job this morning for remedial work on an EICR. The inspection has noted the plastic consumer unit within the hallway cupboard and given it a C2 rating citing regulation 422.2. The flat is on the second floor so the hallway would be the primary means of escape for the occupants...
  3. S

    USA What is the definition of a "Junction Box"?

    A client of ours is developing an add-on "adapter" for exit signs where wires from the adapter have to be connected to the battery wires within the exit sign as well as splicing the hot/neutral. The question was asked if by making these additional connections in the exit sign enclosure turns it...
  4. Lucien Nunes

    What's your definition of 'ghost voltage' ?

    I don't like the term 'ghost voltage' a.k.a. 'phantom voltage*' much, not least because it's rather loosely defined and probably means different things to different people. I also suspect that quite a few people use the term without really understanding what it is they are referring to. My...
  5. HappyHippyDad

    What is the legal definition of an electrician?

    I have scoured the internet to see if I can find a 'legal' definition of an electrician. I cannot! I have found this: What Is A "Qualified Electrician"? | My Local Electrician which distinguishes between a qualified and non-qualified electrician but a 'non-qualified' electrician still has...
  6. S

    supply cable definition

    Hi, in COP 4th Edition does supply cable mean detatchable power cable? thanks
  7. E

    Quick Definition Help needed (No ref books with me right now)

    Would anyone be so kind as to reply to this post with the BS7671 wording of the definitions “Exposed Conductive Part” and "Extraneous Conductive Part". At work right now (without ref books) and trying to remember if the definition of “Exposed Conductive Part” is restricted to part of an...
  8. M

    Borrowed lighting definition required

    For the purposes of emergency lighting can anyone define borrowed lighting for me. I have seen a number of different Fire Authorities guides and recommendations and these are some of the definitions of Borrowed Lighting I have found: light obtained from another nearby source of emergency...
  9. S

    Definition of a 'Clean Earth'

    Who would like to give their definition of a 'clean earth' when being used with IT/data equipment? My understanding would be an earth that goes back to the Original MET of the buildings incomer, by-passing any earthing terminals found in sub-boards? Here's my scenario- Condition Report on a...
  10. O

    PIR testing 10% definition ?

    Hi all when doing a PIR say on a 8 way Wylex CB DB how many of the circuits do you test and what is your interpitation of 10% testing. Now I will declare I alway test all the circuits at the DB Insulation. R1+R2 and with sockets I test the Zs at each outlet and the Zs at the furthest away...
  11. W

    electrician tools definition

    hi can anyone help with further information on elctrician tools and their uses..for my nvq level 2 course..thanks
  12. L

    Definition of Faults

    Hey Guys I am working on my NVQ level 3 and i know what these faults are but im looking for a better definition of these faults below could someone please give me a hand thanks Overload Earth Leakage Open circuit Short Circuit Incomplete Circuit Over-sensitvie RCD High Resistance Joint...
  13. Worcester

    Definition of "Occupied" / Autonomous / stand-alone

    We have an interesting project and wondered if anyone else has come across this. One of my customers, a farmer, pumps his water up remotely from ground source, it is an electric pump housed in its own building, with it's own metered supply. The pump is running all the time 24 x 7 x 365 to...
  14. lurch

    definition of safety circuit

    Can somone confirm exactly waht is meant by "safety circuit" under "prevention of mutual detrimental influence " in the schedule of inspections please. thanks in advance
  15. P

    definition of earth leakage

    just need a quick simple description of earth leakage have changed aconsumer board from an old wylex rewireable (the shower fuse had been updated to an mcb)on this board shower runs ok however on the new board with mcb's covered by a thity ma rccd it trips have rulled out any problems with...

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