Running 10mm swa

[Mighty_G]

Hi all,



I've got a 10mm cable exiting the house (on the left), and an existing 2.5mm cable running to the garage (on the right).

I want to replace the 2.5mm with 10mm swa, and have a wispa box to form the junction, questions are

Do I terminate the 10mm t&e as it exits the house into the box wispa box, or run the t&e up to existing junction box and put the wispa box there?

If I do run the swa cable from the point of exit from the house how do I get it shaped to go around the corner of the house?

Any help / advice appreciated

Thanks

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[sparksburnout]

Perhaps hes got half a dozen of those 100L kettles?

 

[davesparks]

You'd better make sure the catenary is fixed suitably, that's a heavy bit of cable you're putting on it.

You don't want to be up a ladder in a storm trying to fix the hole in the wall where the catenary pulled half a dozen bricks out!

 

[Mighty_G]

You'd better make sure the catenary is fixed suitably, that's a heavy bit of cable you're putting on it.

You don't want to be up a ladder in a storm trying to fix the hole in the wall where the catenary pulled half a dozen bricks out!

Good point

In answer to the questions on the power, there's a bandsaw, table saw, planer thicknesses and extractor, May not need as much as 50 amp but I'm putting the cable in just in case

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[Andy78]

Good point

In answer to the questions on the power, there's a bandsaw, table saw, planer thicknesses and extractor, May not need as much as 50 amp but I'm putting the cable in just in case

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You'll only be using one or two of these at any one time though right ?

 

[Mighty_G]

Yup that's true, sparky and I did have a debate about 6mm, is that 46amp capacity clipped?

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[davesparks]

Yup that's true, sparky and I did have a debate about 6mm, is that 46amp capacity clipped?

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It's not quite that simple, you need to consider all of the other factors which affect the CCC

 

[Mighty_G]

Fair enough

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[hasel5]

Personally I would leave the 2.5 in and leave on the existing breaker.
can't see those bits of kit drawing a huge amount of power if they are all going to fit in a garage.

Mind you the earth loop of the existing may be a bit high

 

[jackhammerJIM]

Hi all,



I've got a 10mm cable exiting the house (on the left), and an existing 2.5mm cable running to the garage (on the right).

I want to replace the 2.5mm with 10mm swa, and have a wispa box to form the junction, questions are

Do I terminate the 10mm t&e as it exits the house into the box wispa box, or run the t&e up to existing junction box and put the wispa box there?

If I do run the swa cable from the point of exit from the house how do I get it shaped to go around the corner of the house?

Any help / advice appreciated

Thanks

Sent from my SM-G903F using Tapatalk

I wouldn't be terminating it into a wispa .

 

[Richard Burns]

If the cable is running solely on the wall and on the catenary then I would be questioning if it needs to have the extra weight of metal provided by the SWA and possibly a less protected cable that would be considerably lighter would be a good idea. Just ensure UV protection.

 

[davesparks]

If the cable is running solely on the wall and on the catenary then I would be questioning if it needs to have the extra weight of metal provided by the SWA and possibly a less protected cable that would be considerably lighter would be a good idea. Just ensure UV protection.

It'd be a bit cheaper too!
I know what I'd go for, especially having seen some SWA which has suffered quite badly in the sunshine on a rooftop recently.

With careful application of the rules you could probably get the size of the overhead section of cable down a bit too.

 

[Octopus]

Yup, discussed and he's happy to sign off, i've done the cabling for the internal renovation and we've worked the same way.

Basically agreed with him i'd run the SWA to the garage, this is to be in place for a couple of years until we build an extension from house to garage. But we didn't discuss the junction box location, hence the questions, however...

....good point on running from the existing wall, i was thinking of simply following the old route directly.

cheers

Paul

I would really question the sense of messing around with a new cable, especially one the size you think you need, if you are going to build an extension in a couple of years......

 

[LeeH]

I have 50A in mine just to prove it isn't that daft a situation...

 

[Mighty_G]

Thanks all, advice has been excellent, going to wait for sparky to get back and discuss it further to make sure we're both happy, I feel a lot better informed now

Paul

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[Octopus]

Thanks all, advice has been excellent, going to wait for sparky to get back and discuss it further to make sure we're both happy, I feel a lot better informed now

Paul

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