What size cable to feed consumer unit??

Also think of the viabilty of the use of metalclad DB's etc..

Nowt worse then trying to gland into plastic DB's and then ending up by remote glanding into metal box and pulling to DB from that.

 

what's wrong with terminating swa in an insulated db?
Gland at a metalclad switchfuse, earth the armour there. Assuming you're using 3 core, Just run swa straight into db, cut off armour neatly. Job done.

 

> what's wrong with terminating swa in an insulated
db?
Gland at a metalclad switchfuse, earth the armour
there. Assuming you're using 3 core, Just run swa
straight into db, cut off armour neatly. Job done.

Nothing if you a 'proper' spark.

Not like some of the 5 day wonders on ere!

 

what's wrong with terminating swa in an insulated
db?
Gland at a metalclad switchfuse, earth the armour
there. Assuming you're using 3 core, Just run swa
straight into db, cut off armour neatly. Job done.

Nothing wrong..however plastic DB's are flimsy and the SWA might distort the casing thus not allowing a snug fit when front is screwed on.

 

if this is conversion into flats i would assume that the extra costs of using split con would hardly me noticed on the total invoice value ???

 

No one down our way uses split con because it's just too dear. I was quoted nearly £700 for about 80m.

 

No one down our way uses split con because it's just
too dear. I was quoted nearly £700 for about 80m.

you get a quote for 3 core 25mm swa then :^O

 

http://www.tradingdepot.co.uk/DEF/product/!!6943XL25.0!!/A004002/Electrical/Cable/Steel%20Wire%20Armoured%20Cable/6943XL%2025.0mm%203%20-%20Core%20SWA%20Cable,%20priced%20per%20metre

£526 for 80m

so not much more to do the job right

 

blimey, that's dear!!
That's got me thinking...I will have to check my wholesaler prices, I'm sure it's nowhere near that. I think

 

I have seen 16 t&E used alot in flat conversions. Done one myself but went safe and used 16mm2 earth as main earth from board in flat to supply. Question is do I really need a main earth from the board or will the main earth run from the isolator switch by the supply and the cpc from the 16mm2 be sufficient to the isolator / met so long a satisfy all the testing?
As I have said I have always run a main earth but not too familiar with distribution circuits and can't find any specific advice in regs. Any comments?

 

Funny that..when we did out flat conversions the DNO (REC then) insisted on the use of SWA for the individual risers to flats..

Must say one thing..the CPC of the 16mm T + E is no good at all for the scenario portrayed.

Would strap it with a 16mm Earth myself..no ifs or buts on that one.

 

......what about a 'maybe'?

 

No what I mean is Sine..

1..Maybe the cabinet in corridor is TN-S.

2..If the supply was run with a 10mm strapper on t'16mm T + E then if it was changed to PME then maybe no good and stuff..despite the parallel thing with the T + E cpc.

3..Still reckon all feeds to flat DB's should be in SWA although that split con sounds good..never used it though so cannot comment on that cable.

4..I don't nuffink else..

 

Pardon?

 

That 166mm T&E costs a fortune Sine



it´s no wonder you haven´t heard of it

 

Ah!


Thought it was just me being daft then!