Holiday Flats - electrical test - consumer units - supply cables - very worried!!!!

[tony mc]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

Brace yourself for the DNO' s cost re the 3 phase supply!

 

[john999uk]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

Oh no. Electrician 'guessed' at over £1000 for DNO 3 phase but 'didn't really know'. Any guesses at what that might cost? Is it possible/better to get trench dug myself or get DNO to do digging, if that is something they do?

 

[High Tower]

Dig any trenches across your own land yourself it will make it much cheaper!.
But you will need their guidance as to route, depth, with, preparation and ducting spec first.

Last 3ph conv I was involved in about a year ago was £3k

 

[Guest55]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

the elecy board will charge you between £6,000- £10,000 to convert to 3 phase depending on the level of work.
the fact that your main service fuse hasnt blown suggests you might not need it

 

[john999uk]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

OH sugar....... As for the current 100amp supply, although it has not blown I don't think it should really be supplying 6 electric cookers, 6x7.5kw showers not to mention 6 microwaves, 7 rings mains, 7 light circuits, 1 immersion heater to mention non of the potential loads!!! God knows why it has never blown. I know that diversity plays a part but 100amp supply with a potential for over 4 times that!!!!!!!

Anyone know if I can have a 3 phase supply fitted and still retain the single phase? Ideally so I can move 1 flat at a time over to the new supply? Otherwise it is going to be a night mare with no power till all main subs and new CU's are put in. Not to mention any additional work required that can't be seen until test.

This getting to be a nightmare....... Why hasn't the gov mandated that EICR's be carried out as part of a Home Information packs. Not that would have helped me

Cheers.

 

[Guest55]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

its obvious why the fuse hasnt blown - because your using less than 100a continous.
and it will take at least 130a to blow that fuse anyway.

 

[john999uk]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

its obvious why the fuse hasnt blown - because your using less than 100a continuous.
and it will take at least 130a to blow that fuse anyway.

In that case it does sort of make a mockery of the diversification calcs. Well I guess it does as I worked out that just showers and cookers could, at a max, be pulling is well over 450amps!!!! Can't believe that the diversity calc would estimate supply at 25% of max load? Guess most visitors eat out and don't have many showers

Biff are you sure you are not interested in the job?
If it is OK with electrician and regs I would happily lay all cables and trunking etc in ready for test/connections etc.
I did work as a 'supervised' sparky for about 12months about 20 years ago. So while I don't know regs, given guidance I could do a lot of the manual work.
Still not interested, maybe on your weekends off

Cheers.

 

[ayjay]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

ffsake just leave the supply as is, as biff said 100 amps on one phase is ok
you worry too much, just rent them out and tuck the money away in an offshore account

 

[john999uk]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

ffsake just leave the supply as is, as biff said 100 amps on one phase is ok
you worry too much, just rent them out and tuck the money away in an offshore account

Must admit I do worry about the H&S of my guests and my family, maybe too much. I would not like to stay somewhere that was not safe so I try and make my place as safe as possible. Like getting Fire alarm serviced every 6 months, Fire extinguishers every 12 months, yearly Pat Testing etc.

As others have stated 100amp fuse has not blown so I can't be pulling more than 130amps continuously, but to get a fully legal EICR certificate I think most accredited sparks would want a bigger supply. Then again they may not be bothered by supply as long as rest is safe?

Off shore banking I wish

Thanks.

 

[Guest55]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

i'm not part p registered i'm afraid john so i cant notify
and domestic is , er , not my bag lol.

 

[john999uk]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

cheers Biff. Know any reliable Sparks in Blackpool that can do job?

 

[malcolmsanford]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

Tell the electrician that suggested you need a 3 phase 100amp supply for 6 units to see my solicitors Hadaway and Sh###e

Talk about one extreme to another I know 10 story block of flats that do not have that amount of supply let alone 6 small domestic units.

And please do not try and work out diversity using something like the OSG, it is obvious that in the 7 years that you have known the fuse as not blown, it is never drawing enough load ever to trip it.

Make the units safe by all means, very commendable of you, some new boards with either RCD/MCBs or even better but a little more expensive individual RCBOs

 

[Guest55]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

cheers Biff.

no problem.
make a donation to the donkey sanctuary with the crap load of cash i've just saved you.

;-)

 

[Guest55]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

And please do not try and work out diversity using something like the OSG, it is obvious that in the 7 years that you have known the fuse as not blown, it is never drawing enough load ever to trip it.

your average dno allow 25-30amps per house on a load assessment for an entire street.
thats what you call proper diversity ;-)

 

[john999uk]

Re: Holiday Flats - electrical test - consumer units - supply cables - very worried!

Contacted DNO for quote. Good news is that 3 phase is on pavement outside, so only about 6 meters away from meter location, although that is in basement!
Had a quote come through from first sparky for EICR. £1000 !!!!!!!! for testing all circuits with no faults rectified. So that is about 30 circuits at a calculated £33 a circuit. Not that impressed with him as he suggested that I contact United Utilities for new supply when according to nationalgrid DNO page United Utilities is not listed!

Seems a bit expensive to me.
What do you guys think?