What cert?

[Stever_777]

Hi, a customer of mine has just bought a house. He has no elctrical history on the property, he says its never been lived in and that it was a show home 3 years ago. the builder has gone bust and cant be located. the supplier would not put the fuse in until an electrician gave him a "safety certificate" in his words. Im a Domestic installer, so i went along and did an inspection and dead tests which uncovered very poor IR readings on half the circuits.

I didnt leave him with a cert. I am going back tmrw to locate the faults.
Since my last visit the supplier has been back to his property and put the fuse in and told my customer that all I must do when probvlems are solvedis connect the tails into the isolator which is in the meter cupboard.

I am quite new to testing and have only just become a DI so MY QUESTION IS, what certificate shall I give him when faults fixed and full set of satisfactory results recorded.

I cant give him a periodic under the DI scheme and cant issue a EIC cause I did not do the design or installation.

Please help?

 

[GLENNSPARK]

I believe that is what is meant by latent defects.
Personally, I'd investigate any measurement below 10MΩ.

No probs spin mate. Well fancy not knowing what latent means. My mothers an english graduate and wouldn`t be too impressed with me there..lol....:thinking:

 

[Deleted member 26818]

No probs spin mate. Well fancy not knowing what latent means. My mothers an english graduate and wouldn`t be too impressed with me there..lol....:thinking:

In my experiance, no one meets the standards set by their mother.

 

[Stever_777]

as above. but what readings were you getting for your IR 's. ? some guys panic if readings are below 299 Meg. anything over 2 Meg. is a pass, also, are you measuring L/N with loads connected?

when I say low readings, i mean like 0.10 Meg ohms

1 circuit dead short

L-N no loads connected

No signs of damp in the house no rodent droppings etc

Just gonna sort problems then issue a PIR I think......might be easier said than done!

 

[hercule]

I had it as 2 Meg tel...if testing the lot at once (at the tails) but 1 Meg for individual circuits.....parrallel paths n all that.........

Are you getting 1 Meg on all of the circuits when tested individually?