Advice on garage supply

[Sparks321]

Hi i'm looking for some advice, i have been to look at a job to wire a garage. In the garage will be 3 double sockets and 3 lights. What my idea was is to run a 6mm 3core swa from a non rcd protected way on 40amp mcb to 40amp rcd double switch in a 2way garage unit which will be feeding a 20amp radail and 6amp lighting circuit. The length of the swa will be approx 22m run under the floor cavity and out to garage.

 

[MDJ]

Yes and Punctuation.

 

[Octopus]

Yes will b tested and notified. Thought these forums were for help n not for giving abuse

By whom .......

We help but not step by step guides

 

[MDJ]

Yes and Punctuation.

Yes will b tested and notified. Thought these forums were for help n not for giving abuse

They are here for Electricians to discuss challenges in our Industry.
Sorry you feel a little upset at the responses, however we just know from a post whether the person writing it is competant or not. I have to be honest, I get the impression you are out of your depth.
If you can tell us a bit about yourself it may help us when we reply

 

[Sparks321]

Yes cable sizing. Looked at table it'll b method d and current carryin capacity 44a. A little help wouldn't go a miss here

 

[Sparks321]

Not out of depth and you have to start somewhere in learning how to design a system.

 

[MDJ]

Yes cable sizing. Looked at table it'll b method d and current carryin capacity 44a. A little help wouldn't go a miss here

Hello, Yes I looked at the appropriate table and in my opinion it was method D. The current carrying capacity is shown as 44 Amps. I would appreciate it if you could all help me with my problem, Thank you.

 

[DPG]

Yes cable sizing. Looked at table it'll b method d and current carryin capacity 44a. A little help wouldn't go a miss here

But you keep avoiding questions that you have been asked. What are your volt drop calcs? Just saying 'it should be ok on a SWA' is not a calculation. And what is the earthing system of the installation?

This is a good forum, but it's a two-way thing!

 

[Spoon]

Not out of depth and you have to start somewhere in learning how to design a system.

I'm happy to help you. This is why I'm asking the questions.
I will not give you the answer thought. I would like you to work it out, with our help. That way you learn things.
How long have you been an electrician?
What qualifications do you have?
This way we know your knowledge base and can reply accordingly. We all love to learn.

 

[Sparks321]

Volt drops calcs i could do with studying up on if am being honest, the system is a tn-s. Max load from what they say is the tumble dryer which is bout 10-11amps, they will b runnin no heavy power tools or machines.

 

[Spoon]

And what is the earthing system of the installation?

"Earthing is tn-s": post 25.

 

[Sparks321]

Fully qualified, city n guilds, 17edition, started wen i was 17 am an industrial electrician always worked in factories and big installation jobs.

 

[Pete999]

Your

"Earthing is tn-s": post 25.

You're fighting a losing battle Spoon.

 

[Spoon]

Volt drops calcs i could do with studying up on if am being honest,

We can help with that. Look up the formula for volt drop.
Post it on here. Under that write it out again but replace with the figures you have. Look at the manufacturers data sheet or BS7671 for cable for Volt Drop figure.
Do you have a the BS7671 book?

 

[Spoon]

You're fighting a losing battle Spoon.

I'm in a happy mood and want to help out a bit.
Us industrial Electricians have to stick together...

 

[Sparks321]

Power fsctor as 1?