HELP, testing near Slough.

[trev]

Is this a domestic job? If not then there are no notification requirements under part p. You just fill in the certs and swap them for a cheque

 

[Sparky28]

Hi whitestu, thanks for your input, to be honest I didn't know I could do eic's, just assumed you had to have 2391 and so on?

 

[Sparky28]

Hi trev, thanks for input, its industrial, so just to check, if I fill in the eic's with my test results and hand the to the customer, that would cover everything?? Just don't want to be caught with my pants down (

 

[wade88]

ha! I thought i was the only one who carried out testing in my pants! fancy that. A fellow pants-down tester. Brilliant.

 

[Sparky28]

Wade, I was actually naked but had doors locked so I couldn't get caught helpful input maybe?

 

[wade88]

OK, if you insist on useful...although it strongly goes against my better nature.

As Trev has said. I worked as a domestic spark for some time, now i work in an industrial setting. Part P applies to domestic dwellings only. Good practise on both sides of the coin certainly applies, but in regards to the legalities behind cert signing, where it is an industrial environment you are working in, no requirement under P, so sign away. As long as you feel COMPETENT to do so, your away fella.

It is however, a tricky circumstance that you are in, as your circuitry is applying to a "temporary" domestic environment that is situated within an industrial one. So, in my honest opinion, i feel this would need to be compliant under BS:7671 of course and therefore require proper signatory certs that comply with Part P(iss) spec

 

[Sparky28]

Thank you wade, not sure on your comment about temp domestic? They are temp industrial units with a 3ph supply to each. Would this not make it industrial?? I would even class it as an add on as there are other units on this piece of farmland. Any clearer?? Got another question for you but don't want you pulling me 2 pieces )

 

[wade88]

Ah sorry mate i misunderstood, i thought you were talking about Bunkabins or the like. Places where workers might be sleeping, not sure where i fabricated that from....

In which case your fine to just carry on as you are. If they are not domestic then no problem.

Fire away Sparky, absolutely zero guaranteeing i will be able to answer it, but some smart chap around will no doubt.

 

[Engineer54]

Thank you wade, not sure on your comment about temp domestic? They are temp industrial units with a 3ph supply to each. Would this not make it industrial?? I would even class it as an add on as there are other units on this piece of farmland. Any clearer?? Got another question for you but don't want you pulling me 2 pieces )

Part Pee doesn't apply, so complete certs and get paid!! lol!!

Ask away...

 

[Sparky28]

Right wade here goes:-
Earthing method,
The supply to this farmland is run down a wooden pylon (for want of a better word) you can clearly see the 3 phase and neutral supply cable going to the fuses now the thing I can't get my head round where is the main earth connection!!!

You may be thinking what the f**k??!! But I get a reading of 240 v ph-earth, and I went to another unit with my tester and done a earth fault loop impeadance test on a socket and the value was within range for the protective device

Helpful advice again please mate

 

[Sparky28]

Thanks engineer 54 )

 

[Sparky28]

Eng 54, feel free to read earthing method post £

 

[Engineer54]

Sounds like you have an overhead PME earthing system..... What is the Ze value at the main intake?? Should be 0.35 ohms or under if PME supply.

 

[Sparky28]

Eng, thanks, I've never come across this before ( I have not been able to carry out a Ze test at the mains. I cannot make out the main earth
conductor so how would I do it?? ((

 

[trev]

You have to find the main earth conductor. Quite simple really.

 

[wade88]

Sorry chap went away to route some ply wood, for a nice finish to mount a new CU on.

As Engineer has said, if that N coming is a PEN then you have as suggested, an over head TNC-S.

You must be able to find the main earth? Have you not traced it

 

[Engineer54]

Where have you taken the supply from for your installation?? The overhead supply could be a sub-main from the works main intake, but then would have included a earth conductor. You really do need to do some investigation here. As there are certain rules that need to be taken into account when PME supplies are involved!! Especially if any of these workshops you have supplied have any extraneous services (metallic water/gas/ steelwork etc)

 

[Sparky28]

Honestly chaps I've looked over and over and traced the other earths than run away from the earthing connector block, I've tried breaking it down but still get readings via parallel earths, am I missing the obvious?? Wish I could upload pics then u would see (

 

[Des 56]

Is it just me that's not getting the gist of the set up?

Working from the metering position or positions,what comes next ?
Where does the unit supplies originate etc

 

[Sparky28]

DES, all I have is 3pm and neutral overhead supply to bs 88 fuses then to the meter then to a busbar chamber to supply dis boards.