leanto power

[bluewispa]

Hi all,
i have a leanto which i want to run power to my plan is to use the cooker supply which is not being used and run a cable from there to a consumer unit which i have (wylex nh206/63) and from there run a strip light and 4 power sockets the unit is 2 way so i can fuse the light and power from there own mcb.
The power sockets will only be used for drills and household diy tools no welding.
Does this sound ok and safe ?.

 

[PrenticeBoyofDerry]

What CSA is the cooker cable, does your current CU have RCD protection and does the CU you intend to use have RCD protection?
You will be installing new circuits so it is notifiable under part p of building regulations.
Fee charged approx £130 for application, unless you use a registered (competent) electrician

 

[bluewispa]

What CSA is the cooker cable, does your current CU have RCD protection and does the CU you intend to use have RCD protection?
You will be installing new circuits so it is notifiable under part p of building regulations.
Fee charged approx £130 for application, unless you use a registered (competent) electrician

Hi what do you mean by csa ? the cable from the house fuse box is rated 45amp both cu have rcd protection is this the information you need to advise me ?.
Thankyou for your help.

 

[ban-all-sheds]

Hi what do you mean by csa ?

Cross Sectional Area.

the cable from the house fuse box is rated 45amp

Are you sure? How do you know?

Or are you going by the rating of the MCB that the cable is on?

both cu have rcd protection

Shouldn't have two lots of RCD protection really.

What type of supply do you have, and are there extraneous-conductive-parts in the lean-to?

Do you know how to design final circuits, i.e, for a circuit to supply a <thing> (doesn't matter what), how would you go about deciding what cable and protective device to use? Do you know how to calculate cable capacity given how it's installed, voltage drop, and do you understand Ib <= In <= Iz?

Do you know what the rules are concerning cables concealed in walls, partitions and under floors?

Do you know which circuits should be RCD protected?

Can you explain what tests you would carry out on the installation - the sequence you'd do them in and at what point you would energise the new CU and it's circuits, and for each test explain what is being measured, why it is important, how you would carry out the test, what sort of results you would expect to get if everything was OK?

Do you want to end up with a Building Regulations completion certificate when the job is all done?

It's difficult to advise you without knowing what you do/do not know, and whether you want the electrics to be legal.

Installing a CU is a far from trivial task, and there are lots of things you need to know and be able to do to get it right.

 

[bluewispa]

Hi what do you mean by csa ?

Cross Sectional Area.

the cable from the house fuse box is rated 45amp

Are you sure? How do you know?

Or are you going by the rating of the MCB that the cable is on?

both cu have rcd protection

Shouldn't have two lots of RCD protection really.

What type of supply do you have, and are there extraneous-conductive-parts in the lean-to?

Do you know how to design final circuits, i.e, for a circuit to supply a <thing> (doesn't matter what), how would you go about deciding what cable and protective device to use? Do you know how to calculate cable capacity given how it's installed, voltage drop, and do you understand Ib <= In <= Iz?

Do you know what the rules are concerning cables concealed in walls, partitions and under floors?

Do you know which circuits should be RCD protected?

Can you explain what tests you would carry out on the installation - the sequence you'd do them in and at what point you would energise the new CU and it's circuits, and for each test explain what is being measured, why it is important, how you would carry out the test, what sort of results you would expect to get if everything was OK?

Do you want to end up with a Building Regulations completion certificate when the job is all done?

It's difficult to advise you without knowing what you do/do not know, and whether you want the electrics to be legal.

Installing a CU is a far from trivial task, and there are lots of things you need to know and be able to do to get it right.

Hi the cooker supplly is rated 45amp at the mcb.
All i want is to have some power for lights and sockets to do a bit of diy stuff i thought it would be safe to run this from my cooker supply as i was going to use another cu.
My plan was to use 6mm cable from the cooker supply to cu about 6m away going through wall then run 2 twin sockets from it one 2m away the second 3m from the first makeing it 5m from the cu the sockets would be run from a 32amp mcb i would then run lights from a 6amp mcb are you saying this is not safe to do ?.

 

[ban-all-sheds]

Hi the cooker supplly is rated 45amp at the mcb.

So in other words you don't know if the cable is?

All i want is to have some power for lights and sockets to do a bit of diy stuff i thought it would be safe to run this from my cooker supply as i was going to use another cu.

So does that mean that you can't answer the questions above? They aren't designed to be a condescending way to highlight any ignorance - they really are things you should know and understand . Installing sub-mains, a CU and new final circuits is not a trivial task - it's not just a case of connecting cables.

And installing a CU and new circuits is notifiable - do you want to end up with a Building Regulations completion certificate when the job is all done?

My plan was to use 6mm cable from the cooker supply to cu

6mm² is not suitable for a 45A circuit for most installation methods - see Appendix 6 in the On-Site Guide and Section 2.3 & Chapter 4 in the Electrician's Guide To The Building Regulations, both of which you should have, and should have studied, before starting this job.

about 6m away going through wall then run 2 twin sockets from it one 2m away the second 3m from the first makeing it 5m from the cu the sockets would be run from a 32amp mcb i would then run lights from a 6amp mcb are you saying this is not safe to do ?.

It might be, or it might not be.

What size cables?

What type of circuits?

Will the lights be on the same RCD as the sockets?

How will you test the new circuits to verify that they are safe?

What mechanical protection will the cables and accessories need in that environment?

 

[bluewispa]

Hi the cooker supply is rated 45amp at the mcb.

So in other words you don't know if the cable is?

All i want is to have some power for lights and sockets to do a bit of diy stuff i thought it would be safe to run this from my cooker supply as i was going to use another cu.

So does that mean that you can't answer the questions above? They aren't designed to be a condescending way to highlight any ignorance - they really are things you should know and understand . Installing sub-mains, a CU and new final circuits is not a trivial task - it's not just a case of connecting cables.

And installing a CU and new circuits is notifiable - do you want to end up with a Building Regulations completion certificate when the job is all done?

My plan was to use 6mm cable from the cooker supply to cu

6mm² is not suitable for a 45A circuit for most installation methods - see Appendix 6 in the On-Site Guide and Section 2.3 & Chapter 4 in the Electrician's Guide To The Building Regulations, both of which you should have, and should have studied, before starting this job.

about 6m away going through wall then run 2 twin sockets from it one 2m away the second 3m from the first makeing it 5m from the cu the sockets would be run from a 32amp mcb i would then run lights from a 6amp mcb are you saying this is not safe to do ?.

It might be, or it might not be.

What size cables?

What type of circuits?

Will the lights be on the same RCD as the sockets?

How will you test the new circuits to verify that they are safe?

What mechanical protection will the cables and accessories need in that environment?

Hi thankyou for your replies as there seems to be more to this job than i first thought i have decided not to go ahead with it i will save up my Penny's until i can afford to pay someone to do it.

Thankyou again for all your advice.