Wot a job to start back to

[Aindowsimon]

A test of a 2008 flat . Expecting an easy one boy was I wrong hear's some pics

And....

O why isn't this socket not live ??? ......

Oooooohh

That's nice
Why can't I plug in my tester????

Ohhhh .Yes on the live pin !
Nice termination

At least it's not just the one flat .....

I could have been taking photos all day but I'm not a paparazzi I'm electrician and had quite a lot to do as flats getting handed over tomorrow.
And have 4 more flats to test

 

[sparks123]

Why would you expect a Ryefield board on the DNO side of this installation, when it is clear that each flat/apartment has a sealed DNO service head??

its more easy for installation to have a ryefield board than busbar..eliminate one steps..now i dont know how they install them but i expect DNO cutout fuse protected + tails to busbar +35mm cable to flats cut out..

before 3 years i install a 15 flats meter room and my design its DNO to fuse protected cut out + tails to 18 way 3p ryefield board..from there to meter + 63A switch fused + 16mm SWA to flats..on this way i think its best design..

The switches are NOT switch fuses, they are isolator switches or DP MCB's!!

how they protect 16mm SWA cable when im sure cutout service fuse its 100A..Definitely need 63A switched fuse between meter and head of SWA cable..

very poor design ..there its many mistakes ..

 

[Pete999]

What size is the swa 10 or 16?
DNO stuff (including cables) very neat.
Why different types of meters?
Is the swa used at the other end? How is it terminated to the comsumer units.
Exposed single cores of an armour are not D.I.

Boydy

Boydy a quick question, What does DI mean?

 

[DPG]

Double Insulated. Daz

 

[Clive P]

Hi,

I think what Boydy means is Double Insulated as in tails.

Regards.

 

[Aindowsimon]

really im surprised how 12 x 35mm cable its connected to main DNO..Please investigate them because i think its another cowboy jobs..

im curious to know that switch after meter its just switch or fused switch..

Not been back as of yet but 12 x concentric cable(each flat)+one landlord db probably not found that yet , 3 phase only 4 flats per phase, that's likely DNO connection I think !! . Like I say I've not been back today, there tomorrow though. Probably more horror/pics

 

[guest119]

My money is on a Lucy/Ryefield/Bemco unit at the incomer.
100a fuse per supply and 80a in the series 7 units adj. meters.
You will possibly not be able to access this as it will/should have a DNO suite padlock.

Oh, and D.I. is Detective Inspector :biggrin5: (Think Taggart)

Boydy

 

[7029 dave]

Those subs are a disgrace!!, plus only a bit of string lol.

 

[Engineer54]

We'll just have to wait and see, when the OP comes back with some photo's we can make sense of!!

To be honest i've never seen a multi way Ryefield board being used as the service head fusing. ...And can't see the point of the DNO having 3 points of fusing if the service head is a typical fused TP+N . I know how they would have installed such an installation in years gone by, and that reflects what i posted earlier, ...eg, via from service head to a sealed busbar chamber.

Plenty wrong with the contractors side of things though!! lol!!

 

[guest119]

3 points of fusing was what I meant Eng. not direct to the distribution.
Seen it before, eg 300a head feeding a Bemco, 100a fuse per supply, 80a fuse per cut out.
Outgoings was in plastic trunking, stuffer for 16split risers and meter slots so no colours on show.
Was 16 flats in the middle of glasgow. Landlords supply, lift, fire alarms etc.

Boydy

 

[Engineer54]

3 points of fusing was what I meant Eng. not direct to the distribution.
Seen it before, eg 300a head feeding a Bemco, 100a fuse per supply, 80a fuse per cut out.
Outgoings was in plastic trunking, stuffer for 16split risers and meter slots so no colours on show.
Was 16 flats in the middle of glasgow. Landlords supply, lift, fire alarms etc.

Boydy

You may well be right, but as i say, i haven't seen such a system by the DNO, and can't really see the point of it either!!

What i can see, is virtually no discrimination between the Ryefield 100A fuses and the 80A cut out fuses. Seen plenty of DNO sealed Busbar chamber set up's though!!

 

[Aindowsimon]

Sori for the side view no key to open the door

Hears another for clarification , if it helps ??

 

[Aindowsimon]

Ok then one more ......

On db side on 2nd flat

 

[Aindowsimon]

Db side

 

[ipf]

There you go then.
The landlord's too ?

 

[Engineer54]

What happened to the photo in post # 27??

Still no real conclusion, but it does look like this is a service head extension, which i'll still say is more likely to be a busbar chamber than a multi fuse distribution fuse set-up!!