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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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20mm PVC electric conduit Capacity
I am going to install a ring main in my back room, and will be laying
the 2.5mm cabling in PVC conduit. Can I fit both 2.5mm t&e in one 20mm PVC conduit, and will there be any room for a 1.5mm lighting cable, or will I have to use 2 lengths of 20mm conduit? -- Posted via Mailgate.ORG Server - http://www.Mailgate.ORG |
#2
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20mm PVC electric conduit Capacity
"Lawrence Zarb" wrote in message news:1f2ccc7899dca5009dc42c3c4872d8c1.52329@mygate .mailgate.org... I am going to install a ring main in my back room, and will be laying the 2.5mm cabling in PVC conduit. Can I fit both 2.5mm t&e in one 20mm PVC conduit, and will there be any room for a 1.5mm lighting cable, or will I have to use 2 lengths of 20mm conduit? -- Posted via Mailgate.ORG Server - http://www.Mailgate.ORG You will need to run two tubes if the cable is twin and earth. Steve |
#3
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20mm PVC electric conduit Capacity
Lawrence Zarb wrote:
I am going to install a ring main in my back room, and will be laying the 2.5mm cabling in PVC conduit. Can I fit both 2.5mm t&e in one 20mm PVC conduit, and will there be any room for a 1.5mm lighting cable, or will I have to use 2 lengths of 20mm conduit? What conduit are you using? Sounds like the round section stuff like this: http://www.tlc-direct.co.uk/Products/MT20.html That is intended to take non-sheathed wires, ie you run the live, neutral and earth wires separately - you'll have a hell of a job trying to stuff all your sheathed cables down there. Can you describe your application - are you wanting surface-mounted wiring rather than (eg) burying it under plaster? If so, trunking is the stuff - something like: http://www.tlc-direct.co.uk/Products/MTMIN3.html David |
#4
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20mm PVC electric conduit Capacity
Lawrence Zarb wrote:
Can I fit both 2.5mm t&e in one 20mm PVC conduit Yes you can, but it'll be "interesting" getting it through any inspection elbows/tees without kinking/scuffing it. and will there be any room for a 1.5mm lighting cable I don't think you'll get away with that |
#5
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20mm PVC electric conduit Capacity
Lawrence Zarb wrote:
I am going to install a ring main in my back room, and will be laying the 2.5mm cabling in PVC conduit. Can I fit both 2.5mm t&e in one 20mm PVC conduit, Just about for short runs. Corners and Tees will be difficult though. and will there be any room for a 1.5mm lighting cable, No chance! will I have to use 2 lengths of 20mm conduit? Conduit is really designed for "singles" - not PVC clad cable. What are you trying to achieve? -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#6
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20mm PVC electric conduit Capacity
I have a 2in perimeter trench around the floor to lay the cable in, and
will fill the trench with concrete once the cable is laid -- Posted via Mailgate.ORG Server - http://www.Mailgate.ORG |
#7
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20mm PVC electric conduit Capacity
Lawrence Zarb wrote: I have a 2in perimeter trench around the floor to lay the cable in, and will fill the trench with concrete once the cable is laid I pity the poor bugger who is going to rewire that in 20 yrs P. |
#8
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20mm PVC electric conduit Capacity
"Lawrence Zarb" wrote in message news:cac52b3098f513f5300872ff277b86ae.52329@mygate .mailgate.org... I have a 2in perimeter trench around the floor to lay the cable in, and will fill the trench with concrete once the cable is laid Then you would be better off using ducting designed for burying in concrete floors. It would make rewiring much easier at a later date too. Your local electrical wholesaler should be able to supply it. Colin Bignell |
#9
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20mm PVC electric conduit Capacity
Lawrence Zarb wrote:
I have a 2in perimeter trench around the floor to lay the cable in, and will fill the trench with concrete once the cable is laid I would be tempted to use the absolute maximum size of conduit I could get in. 32mm PP drain pipe is cheap and works well. |
#10
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20mm PVC electric conduit Capacity
On Sat, 1 Apr 2006 13:56:15 +0000 (UTC) someone who may be "Lawrence
Zarb" wrote this:- I have a 2in perimeter trench around the floor to lay the cable in, and will fill the trench with concrete once the cable is laid Why not do it properly, with suitably sized conduit or trunking? This would have inspection hatches where appropriate (certainly at the corners and where the junctions for the sockets are) and draw strings. Given that you will have mechanical protection up to the sockets why not wire the circuits with singles, rather then twin & earth? Then it can be extended and new circuits added with ease. Is the lighting circuit just passing through the room? -- David Hansen, Edinburgh I will *always* explain revoked encryption keys, unless RIP prevents me http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54 |
#11
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20mm PVC electric conduit Capacity
wrote in message oups.com... Lawrence Zarb wrote: I have a 2in perimeter trench around the floor to lay the cable in, and will fill the trench with concrete once the cable is laid I pity the poor bugger who is going to rewire that in 20 yrs P. You can go a lot longer than 20 years between rewires. I fell sorry for the poor buggers who will have to rewire the chipboard floored houses that they throw up now. Adam |
#12
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20mm PVC electric conduit Capacity
"Ian Stirling" wrote in message ... Lawrence Zarb wrote: I have a 2in perimeter trench around the floor to lay the cable in, and will fill the trench with concrete once the cable is laid I would be tempted to use the absolute maximum size of conduit I could get in. 32mm PP drain pipe is cheap and works well. And is not a safe practice |
#13
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20mm PVC electric conduit Capacity
Stephen Dawson wrote:
"Ian Stirling" wrote in message ... Lawrence Zarb wrote: I have a 2in perimeter trench around the floor to lay the cable in, and will fill the trench with concrete once the cable is laid I would be tempted to use the absolute maximum size of conduit I could get in. 32mm PP drain pipe is cheap and works well. And is not a safe practice Buried in concrete? |
#14
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20mm PVC electric conduit Capacity
However, I had 100m of T&E and 0m of singles.
And no Stanley knife?! :-) Yes Stanley knife. No insulated earth cable, just CPC which is no good! Christian. |
#15
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20mm PVC electric conduit Capacity
Christian McArdle wrote:
However, I had 100m of T&E and 0m of singles. And no Stanley knife?! :-) Yes Stanley knife. No insulated earth cable, just CPC which is no good! Ah, true! (But you can buy 3mm earth sleeving for 2GBP per kilometre from Screwfix: wonder if that would be allowed? Although making diy insulated earth cable would almost be as much fun as stuffing T&E down conduit... |
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