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Discuss Running cable in cavity in the Electrical Forum area at ElectriciansForums.net

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telectrix

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Mentor
Arms
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you running it up cavity or just straight through, inside to outside?
 
  • Thread Starter Thread Starter
  • #5
well basically one end of the cavity is currently open so it easy to run the cable - I am running it down from the ceiling to a socket in the cavity wall
 

Midwest

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Arms
Esteemed
Personally, I would avoid running cables in cavities if at all possible. If it becomes damaged from contact with a cavity tie, you might not see it.

If you must, wouldn’t some sort of flexible plastic conduit be better?
 
Just been looking at regs for this. Using flexible conduit should provide strain relief and a compliant bend at the top cavity point of entry - that's where most of the mechanical stress would be (reg 522.8.4 and .5). It would also provide protection from falling debris (reg 522.6.2).
 

GBDamo

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Supporter
Dont like it.

Anything in a cavity that shouldn't be there has the, very real, potential to bridge and cause damp.
 

DPG

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Arms
Esteemed
Dont like it.

Anything in a cavity that shouldn't be there has the, very real, potential to bridge and cause damp.
Agree. Never a good idea. And there's the risk of someone drilling through the wall and not having any clue that it's there.
 
Agreed - avoid cavity installs wherever possible - but the original query was about an internal cavity and mechanical protection.
 

Pete999

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Arms
Esteemed
Describe your internal cavity wall to us . Is it part of en extension where an external wall is now no longer external ?
Was done as a norm many moons ago any evidence ot danger????
 

DPG

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Arms
Esteemed
Bearing in mind it was from February, I think he will have sorted it by now.
 

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