Domestic moving cu.

Discuss moving cu. in the Electrical Forum area at ElectriciansForums.net

i=p/u

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Arms
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seemed to have bagged another house extension happening in my street. way hey..

but he wants to move cu about 1m to a box on the new wall. but keep existing dno equipment where it sits

as its under 3 meters i can just install new tails.in a duct in the ground going up cavity of the wall.

rcd the tails or not?????????????

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all existing ciruits and new circuits will be rcd'dddddddddddd
 

Strima

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Arms
Esteemed
SWA from an isolator?
 

i=p/u

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Arms
  • Thread Starter Thread Starter
  • #4
16mm swa sounds good as only 60/80A fuse on the carrier. what sort of box would i use to gland the swa at meter equipment as im using plastic cu aat new position..
 

i=p/u

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Arms
  • Thread Starter Thread Starter
  • #5
you dont just gland it and and attatch to banjo, seems ruff
 

Strima

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Arms
Esteemed
Gland and banjo will work but you could gland into a galvanised adaptable box or steel trunking then leave enough cable to go straight though and terminate in the CU, also helps you maintain the IP rating of the CU. I would personally use three core and some decent size cable to bond the box/trunking so both ends of the SWA are earthed.
 

i=p/u

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Arms
  • Thread Starter Thread Starter
  • #7
yh was just looking at metal adaptable boxes... i am under the impression i only have to bond at one end if using 3 core??? correct me if you think im acting the monkey
 

Strima

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Arms
Esteemed
You only have to bond at one end however I believe it's still best practice to do both, with the gland kit you normally get enough to do both and you'd get no earthing problems... :)
 

i=p/u

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Arms
  • Thread Starter Thread Starter
  • #9
so 16mm pvc/pvc from dno equipment to isolater , 16mm pvc/pvc from isolater to metal adaptable box, swa from adaptable box to new cu on front wall of house( about 1.5m max) and gland and attach swa to platic cu and having fly lead to earth bar in cu.

would i have to have iscos inside adaptable box
 
G

Guest55

.......... correct me if you think im acting the monkey
banana.jpg

couldnt resist lol.
 

i=p/u

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Arms
  • Thread Starter Thread Starter
  • #14
yeah its under 3m and will be going up centre of cavity i think.. which is 100mm brick each side
 

i=p/u

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Arms
  • Thread Starter Thread Starter
  • #15
will i be the one in a million that uses the the pipe as cpc,
 
B

Barry Rathbone

Can you get cables through cavity? If so I would use cavity, over 50mm deep a A-B horizontal. 25mm Tails + 16mm earth drawing /dimension left with owner.Simples...(sorry!)
As accurate as I can without actually seeing job of course.....legal advice see the ex wife's solicitor!!
 

i=p/u

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Arms
  • Thread Starter Thread Starter
  • #18
i think going to be bit of 2inch hard pladstic pipe going under floor and up cavity into cu box on wall, into isolator then to cu. i have seen it done this way only with a switch/fuse inline , but has been over 3m
 
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