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PostPosted: Sun Jul 29, 2018 10:01 pm 
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8.5 kw
/ 230 = drawing 36.95 AMPS
Best MCB = 40amp
My cable will be leaving the CU, next 4 metres in conduit in a hallway, then through the ceiling to first floor. Under the floorboards for another 1 metre.
From this point another 2 to 3 metres to the above shower.
Method of insulation B is the best fit in my eyes
Appropriate cable size 10mm2 according to table 2.3.1 = REGs
Assuming that the temperature will not be great using B method.
Can you please confirm that the above is correct - Great if you can

Second question: shower isolating switch that I will install outside the shower, what rating should it be?
Thanks


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PostPosted: Sun Jul 29, 2018 11:06 pm 
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I presume you mean Trunking not conduit?

Trunking being white, with a removable lid on its length. (you can also get it in red and black)

10mm will be fine, you can also use a pull cord for isolation, I would opt for a 50A one

and RCD?

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Take it easy, a forum is only a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link. to find out more.

No such thing as "Thou shalt put this wire here, Thou shalt put that wire there" .............Take a picture BEFORE you do the job.

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PostPosted: Mon Jul 30, 2018 8:20 am 
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Trunking - you are correct and thanks
Thanks for other info, all makes sense.

Tell me, understanding I now know what trunking is: Rectangle shape with removable lid --- What is condit please.
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PostPosted: Mon Jul 30, 2018 6:40 pm 
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No idea what condit is, but conduit Click here

_________________
Take it easy, a forum is only a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link. to find out more.

No such thing as "Thou shalt put this wire here, Thou shalt put that wire there" .............Take a picture BEFORE you do the job.

If gloom had a voice, it would be me. :mrgreen:

:idea1: How to post a picture on this forum Click here


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