It's not Part P that's the ass....or is Part P "an ASS"!!!!
Question one: Mixed up on what R2, Ze, R1+R2, Rn, EFLI are?
Question 2: Whens your ELECSA assesment booked for?
sorry mate but you are nowhere near ready for your assessment
EFLI (earth fault loop impedance)
This do nothing and it is more dangerous comes up many times. But we have to also protect our selves. If you think anyone will go to court as say he said it was dangerous but I asked him to do it anyway then your living in cloud cuckoo land.
The problem is there is always a way around the problem and if some one is injured some one with hind sight some one will point it out. Including using a transformer and 50 volt lighting! just one way!
The point given is often well we are not allowed to just switch it off. Then one sees where a RCD has been tested or a R1 + R2 reading is entered ups!! Then who turned it back on?
If you tell some one sorry I am not permitted to turn it back on with these faults. What you do when I leave is up to you. One knows they may well turn it back on when you leave but they are also well aware the installation is faulty. But turn it back on and say "I should not really turn that back on" and the customer does not perceive the same amount of danger.
And my grand parents didn't have electric lights and they did not die because of no light! They has candles and gas lights. Today we have standard lamps and table lamps and to claim there is a great hard ship because the ceiling mounted lights don't work is a load of rubbish.
We all know we can fit wall lights using FCU's and we all know wireless light switches are available to control them from a convenient location. OK maybe there is an issue that if someone trips RCD on sockets you lose lights. Well even that holds little water there are emergency type lights if you are really worried about that.
So lets be honest only reason why you leave lights without an earth is because you want to.
In your own home then again the only reason is that you want to. There is always a way to correct it.
However as to if there is any real danger without an earth or only a perceived danger is another question. Here where we can hand on heart say there is no way the occupier is going to ever fit any thing other than class II fittings I can't really see a danger. Remembering this also means non metallic screws in switch plates. The only place where this could be true is ones own home.
One problem would arise if one wanted to sell it. The same applies to other things in ones own home. Although I do have RCD's on all circuits in my home I suppose following the 17th Edition I could get away with not fitting RCD's to protect cables buried less than the 50mm in my own home. 522.6.7 will allow me because my home in under the supervision of a skilled person not to use RCD's on the lights etc. But what if I want to sell or die? (Not that I would WANT to do that!) Do you really want to leave your loved ones not only sorrowful for their loss but also got to rewire the house before they can sell it?
We all know what we should do is there really any need to debate it on here?
hi duncan 2 books i would recommend to you
inspection,testing and certification ( brian scadden )
practical guide to inspection,testing and certification
of electrical installations ( christopher kitcher )
and if you dont have them yet bs 7671/ the on site-guide and guidance note 3
try and get a bit more practical experience before you book your assessment
speak to elecsa they may be able to help
goodluck
Ok, so are you stating that because that I know that there is a departure but (I) do not correct this and if there is a future problem then I am legally responsible? Should I then get a solicitor to send a letter to my family stating that the wiring does not meet the regs and that I can correct it if they pay me a sum of money? (and if they don't and an accident occurs then I'm indemnified) as they haven't responded/paid, I could easily set up a "contract" for a member of my family stating that the "wiring" does not meet current standards, that I'm financially unable to remidy this but that they will not sue me for any "issue/accident or otherwise" , I could do this as I technically know of the issues but do I really need to do this legally, I'm serious... (it's about mitagation and disclosure etc) As I stated it's not because I don't want to, it's for financial reasons, someone send me £3000 and it'll be "fixed " in 10 days, but the DWP won't "stump" up this cash for this, crisis loan or not!!! but I am prepared to make a "case" from the outcome of this Forum
sorry mate but you are nowhere near ready for your assessment
EFLI (earth fault loop impedance)
Ok! point taken, I just know it as the fault loop impedance, either high (25 Amps) or no trip 15mA type test or Zs, but I give that to u, the latest forms do state "earth fault loop impedance" to be very precise, but of course a fault loop involves R2 and so the cpc and thus earth, I'm just used to checking Zs (and my Megger setting "loop test")
What's the difference between Zt, Zs and (R1+R2), I thought that Zs was the loop impedance, Zt ? and either R1 or R2 can be measured directly or derived from the difference between Zs and Ze, or am I totally confused?!
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