≥6-core flex?

[pete01]

Wireless switching might be easier

 

[JohnW2]

Wireless switching might be easier

Yep, that's always been there as a 'Plan Z', as has digging out a chase for a couple of cables.

However, if, as I suspect/hope, pulling a single small round cable through that short length of conduit proves to be fairly 'easy' that presumably would/will be the simplest/quickest solution of all?

 

[333rocky333]

Is there a reason for not wanting black cores

 

[pete01]

Yep, that's always been there as a 'Plan Z', as has digging out a chase for a couple of cables.

However, if, as I suspect/hope, pulling a single small round cable through that short length of conduit proves to be fairly 'easy' that presumably would/will be the simplest/quickest solution of all?

I dont think you'll do it it looks similar to my house and those conduits are about 16mm, ok for a twin and earth but not much more.

 

[JohnW2]

Is there a reason for not wanting black cores

No, not really - which is why I remain attracted to the TLC YY cable.

 

[JohnW2]

I dont think you'll do it it looks similar to my house and those conduits are about 16mm, ok for a twin and earth but not much more.

Are you talking about the (black-cored) TLC YY? If so, the 0.5 mm² and 0.75² versions are seemingly tiny and more than adequate (even if perhaps arguably 'non-compliant'), but even 1.0 mm² is only 8.3 mm OD. Are you really suggesting that might be a problem? ....

 

[pete01]

If you had it on a bench possibly no problem, installed reaching under floor etc not so easy but....

All you can do is try....plenty of yellow 77 might help

 

[JohnW2]

If you had it on a bench possibly no problem, installed reaching under floor etc not so easy but....

Both ends of the short and straight length of conduit are fully exposed.

All you can do is try....plenty of yellow 77 might help

I remain a little surprised by your doubts - even the 1.0 mm² YY is about the same as 1.5 mm² T+E in one dimension (and a fair bit less than the T+E in the ther dimension) and the 0.5 mm² and 0.75² mm YYs smaller than even that.

I'm certainly tempted to use 0.75² mm. Even though BS7671 'requires' a minimum of 1 mm² for a lighting (or,now, also a 'power') circuit, it has an adequate CCC for a 6A circuit. Would you be happy be that (if Mr Jobsworth was not looking over your shoulder)?

 

[pete01]

Both ends of the short and straight length of conduit are fully exposed.

I remain a little surprised by your doubts - even the 1.0 mm² YY is about the same as 1.5 mm² T+E in one dimension (and a fair bit less than the T+E in the ther dimension) and the 0.5 mm² and 0.75² mm YYs smaller than even that.

I'm certainly tempted to use 0.75² mm. Even though BS7671 'requires' a minimum of 1 mm² for a lighting (or,now, also a 'power') circuit, it has an adequate CCC for a 6A circuit. Would you be happy be that (if Mr Jobsworth was not looking over your shoulder)?

I would definitely use 0.75mm, anything for an easy life

 

[Sureitsoff?]

bit longer than you need but handy for future use...............

https://www.ebay.co.uk/itm/266263956669?_skw=7+core+cable&itmmeta=01KXBBPDMG5T1XF2EP0092DZ6R&hash=item3dfe918cbd%3Ag%3AONIAAOSwxfBkZ62U&itmprp=enc%3AAQALAAAA0GfYFPkwiKCW4ZNSs2u11xCm--Gk1SDVmxd0rk2loDqiE5tNZbok86eHV%2BP9vfFss5937h2okgJJvKfOVqnZGN1deIbgAnv8%2BkCdpjOeEqNV30tmwlPxcspYi0fcYM%2BHypveXzsFQq9DQ3DuRzmWoKAcZLxQk4tA37krZFK49D5QBsYosiZoMmJhQs62eFwIp3uogL6ELqn1gMByD7EVRGVr7Yn8jIbiSObBMhMMH2%2BvOZuIvVCistcmQz%2B8wMJQpCJveSz7vZLnhAeytuqoXmo%3D%7Ctkp%3ABk9SR9Da2evqZw&LH_ItemCondition=3000

 

[JohnW2]

I would definitely use 0.75mm, anything for an easy life

Quite so. This seems to be roughly the situation (comparison of YY to 3C+E), roughly to scale. ....