25mm cable ???

[AndyPRK]

I assumed as much.

I'm having cable run for 1 electric oven/separate hob (or perhaps integrated oven/hob) and 1 boiler.

Oven is about 9meters from consumer unit.

Boiler is about 10 meters.


Read more: //www.diynot.com/forums/electrics/25mm-cable.407364/#3152012#ixzz37SpV20wX[/QUOTE]

Assuming the boiler is gas, it does not require 6mm cable.
Some of the 2.5mm can be used if your having it on its own MCB.

Not sure if you are having the hob & oven on the same cable.

I noticed you haven't mentioned any 3C+E for 2 way lighting. 1mm

 

[DaftPunk]

Yeah just get 100m of 1mil and 2.5. Should be funny when they can only wire 2 thirds of the house

Alternatively you could employ a proper electrician and leave it up to them to do the entire job for you.

 

[PrenticeBoyofDerry]

I don't think its physically possibly to get the consumer unit closer to the meter, less than 1meter it is! On the same wall lower down

If that's the case you will probably need about 1.5m of each core and possibly some 16mm earth conductor at something similar in length.

I assumed as much.

I'm having cable run for 1 electric oven/separate hob (or perhaps integrated oven/hob) and 1 boiler.

Oven is about 9meters from consumer unit.

Boiler is about 10 meters.

Including horizontal and vertical runs.

well if you include isolation for cooking appliances add about 4m to that length.
If the boiler is a standard combi on separate circuit then I would be putting in 2.5mm cable for that.

I'm having the p**s taken out of me and now worried that these are cowboys. Don't know how to approach the subject with them now.

If you doubt they are up to the job, look in to the contract you have agreed with them and the materials they have asked you to supply and cancel it.

Despite being 6 foot and bulky I'm being treated like a 5'6 blond bimbo with big ****

If that is the case, I dread to think what the electrician's next intentions are.

Also, 150meters of 1mm2 and 150meters of 2.5mm2 he's asked for. Perhaps I should just get one 100metre reel of each.

I would be concerned if this is the shopping list you have been given.
I would say possible 3 reels of 1.00mm t&e could be needed, I would expect something left.
And I would expect at least 2 reels of 2.5m t&e, but I would also be using some 3 core 1.00m also and possibly 16m earthing conductor and 10mm for bonding. I also tend to pop 4.0mm rads in the kitchen!

All of this will knock of (I'm expecting) half the price off. It's currently £720 including vat ! Abysmal

So material cost are £720.00?
3 bed semi standard rewire including CU, updating of bonding, I would say about £450 material costs.

 

[SparrowHawk99]

Oh crap, well I read the list price wrong and actually it was saying the 100m price but actually billing for 1 meter !

I accused him off pulling the wool, but what is worse when I discussed this with my neighbor who is an ex-sparky he offered to do the runs for free for something to do!

The price is still £720 including vat but looks like I'm getting the labor for next to nothing! I slipped the guy 100 for his trouble and all is now well. lol. Going to do the runs with the neighbor and have it tested separate lol

 

[SparrowHawk99]

I assumed as much.

I'm having cable run for 1 electric oven/separate hob (or perhaps integrated oven/hob) and 1 boiler.

Oven is about 9meters from consumer unit.

Boiler is about 10 meters.


Read more: //www.diynot.com/forums/electrics/25mm-cable.407364/#3152012#ixzz37SpV20wX[/QUOTE]

Assuming the boiler is gas, it does not require 6mm cable.
Some of the 2.5mm can be used if your having it on its own MCB.

Not sure if you are having the hob & oven on the same cable.

I noticed you haven't mentioned any 3C+E for 2 way lighting. 1mm

There's 50 meters of 3C+E in there

Does hob and over need to be same cable ?

On a completely unrelated matter there's a tiny money spider dangling right in front of my computer screen lol

 

[SparrowHawk99]

I don't think its physically possibly to get the consumer unit closer to the meter, less than 1meter it is! On the same wall lower down

If that's the case you will probably need about 1.5m of each core and possibly some 16mm earth conductor at something similar in length.

I assumed as much.

I'm having cable run for 1 electric oven/separate hob (or perhaps integrated oven/hob) and 1 boiler.

Oven is about 9meters from consumer unit.

Boiler is about 10 meters.

Including horizontal and vertical runs.

well if you include isolation for cooking appliances add about 4m to that length.
If the boiler is a standard combi on separate circuit then I would be putting in 2.5mm cable for that.

I'm having the p**s taken out of me and now worried that these are cowboys. Don't know how to approach the subject with them now.

If you doubt they are up to the job, look in to the contract you have agreed with them and the materials they have asked you to supply and cancel it.

Despite being 6 foot and bulky I'm being treated like a 5'6 blond bimbo with big ****

If that is the case, I dread to think what the electrician's next intentions are.

Also, 150meters of 1mm2 and 150meters of 2.5mm2 he's asked for. Perhaps I should just get one 100metre reel of each.

I would be concerned if this is the shopping list you have been given.
I would say possible 3 reels of 1.00mm t&e could be needed, I would expect something left.
And I would expect at least 2 reels of 2.5m t&e, but I would also be using some 3 core 1.00m also and possibly 16m earthing conductor and 10mm for bonding. I also tend to pop 4.0mm rads in the kitchen!

All of this will knock of (I'm expecting) half the price off. It's currently £720 including vat ! Abysmal

So material cost are £720.00?
3 bed semi standard rewire including CU, updating of bonding, I would say about £450 material costs.

Can I put the list on here for you guys to comment on in that case?

I'm having spot lights throughout keep in mind, fire rated.

Should I upload list ?

 

[PrenticeBoyofDerry]

Tested by who?
You will very likely need to fill in a three signature form, for design, construction and inspection/testing.

 

[PrenticeBoyofDerry]

Can I put the list on here for you guys to comment on in that case?

Yes

I'm having spot lights throughout keep in mind, fire rated.

You mean downlights, not all areas are required to be fire rated and if certain provisions are in place they can be excluded. I tend install them regardless.

Should I upload list ?

Crack on.

 

[PrenticeBoyofDerry]

Does hob and over need to be same cable ?

Doesn't need to be same circuit or same cable, but some thoughts on designing the circuit and calculation on load and cable sizing would be required

On a completely unrelated matter there's a tiny money spider dangling right in front of my computer screen lol

You need a big one, those tiny ones are next to no good, just like the leprechauns!

 

[SparrowHawk99]

Tested by who?
You will very likely need to fill in a three signature form, for design, construction and inspection/testing.

By a proper spark mate don't worry. This is list :



2 heat detectors
1 fire detectors
19 2 gang socket
9 spec switch + socket box 25mm 2 gang
10 2 gang 35mm dry lining box
5 spec switch + socket box 25mm 1gang
19 fire rated down lights - white
4 low voltage downlights - white
19 50w halogens
4 50w mr16 lamp
4 junction box
50metres of 1mm 3c+e grey
150 metres of 2.5mm twin + earth grey
150 metres of 1mm t&e grey
6 1g 2w switch
1 2g 2w switch
1 metre of 25mm blue/grey
1 metre of 25mm brown/grey
eight room tvfm combiner/booster
3 1g tv coax female
3 1 gang d/p sw socket
2 13a switched fused spur
2 28mm single moulder pattress
5 ultimate 1g 2w 400w dimmer
48 element high digital aerial
10 metres of 6mm t&e grey
50a vertical switch c/w led
1 spec switch + socket box 47mm 1g
1 2 gang 47mm dry lining box
2 specified pendant set 6''
guardian pir sensor light white
100a consumer unit 10 mcbs


2 bedrooms, 1 bathroom, 1 lounge, 1 kitchen, 1 hall

 

[EFLImpudence]

TWENTY THREE 50W lamps ???

 

[Monkeh]

And a load of cheap TV stuff.. but no coax.

And no provision for ethernet.

 

[ban-all-sheds]

Tested by who?
You will very likely need to fill in a three signature form, for design, construction and inspection/testing.

By a proper spark mate don't worry.

Let's look at the second of the three signatures first.

my neighbor who is an ex-sparky he offered to do the runs for free for something to do!

How "ex"? Does he have recent enough qualifications to justifiably sign this:

FOR CONSTRUCTION
I being the person responsible for the construction of the electrical installation (as indicated by my signature below), particulars of which are described above, having exercised reasonable skill and care when carrying out the construction hereby CERTIFY that the said work for which I have been responsible is to the best of my knowledge and belief in accordance with BS 7671:2008, amended to 2011 except for the departures, if any, detailed as follows:

What types of installation work is he experienced in?


So that leaves design, and inspection and testing.

Who is going to do the design? Not you, because you aren't competent.

Not your neighbour, he's just doing the construction.

So who?


And then inspection & testing. Have you found an electrician prepared to put his name to an EIC signed by two other people, one retired, who he doesn't know?

And what about Building Regulations compliance? You're not going the route of an electrician who can self-certify, there are no 3rd-party certifiers yet, so you'll need to put in an application before you start (which will eat up a chunk of the savings you think you'll make) and that will mean being able to explain to the council how you will comply with the Building Regulations.


I'm not convinced you've thought this through properly.

19 fire rated down lights - white
4 low voltage downlights - white
19 50w halogens
4 50w mr16 lamp

Mad. And probably won't be acceptable to LABC.

100a consumer unit 10 mcbs

Nope.

 

[ban-all-sheds]

TWENTY THREE 50W lamps ???

And a load of cheap TV stuff.. but no coax.

And no provision for ethernet.

It's clearly been "designed" by a fool.

 

[SparrowHawk99]

TWENTY THREE 50W lamps ???

lol

5 spots to lounge, 6 to kitchen, 4 to one bedroom, 4 to other bedroom, 4 to bathroom

and i think the 50w are bulbs