What cable is this?

[ProDave]

Honestly not seen this one before.




It's a 3 core flat cable form, with red yellow and blue cores all insulated and no sign of a CPC not even one cut off and not used.

 

[roys]

I was going to say the stripped inside of a 3 core SWA cable pre 2004 until you said it was flat mmmmmmm

 

[Andy™]

3 core no earth. same era as twin no earth, just not as common. looks like it was connected to a socket though, only really seen it on lighting

 

[ProDave]

Yes the whole ground floor sockets circuit is wired in this stuff. Definitely large enough for a ring final, I assume it is an imperial multi stranded cable, I am not sure if it is 7 or 9 strands. What date did twin / 3 core with no earth end? I thought this house was about 1960's / 70's so would have been too recent.

I once encountered a ring final wired with 1.5 3 core and earth, using yellow as earth and CPC not used. I put that one down to the apprentice first fixed, picked up the wrong drum of cable (very similar size and weight to 2.5 t&e) and it was an "oh sh!t what are we going to do" moment when they went to second fix.

 

[Andy™]

iirc 14th edition in 1966 required lights to be wired with cpc so around then

 

[ProDave]

Someone using old stock cable then in a creative fashion after the regs changed.