Discuss Black PVC twin (and earth) cable in the Electrical Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

mattg4321

-
Esteemed
Arms
Reaction score
2,043
Has anyone come across black PVC twin lighting cable before? Working in a house, probably late 50's/early 60's yesterday and found all the lighting wired in black twin PVC cable. No cpc, solid tinned copper core.

I immediately assumed rubber when I saw it but it didn't feel like rubber at all. Quite the opposite. Almost certainly PVC. No signs of any insulation coming off as you would expect with rubber. Very difficult to strip actually. I couldn't pull a conductor to strip away the sheathing, I had to run a knife down the middle.

Never come across this before in 15 years of doing this! Anyone else?
 
Could it be some sort of festoon lighting cable??
Probably pinched from the pits back in the day!
 
Could it be some sort of festoon lighting cable??
Probably pinched from the pits back in the day!
Could be but the festoon stuff I used to play with was VIR, and full of holes from the ----- ons funnily enough...
 
I've come across black PVC 7/029 twin and earth once. It was feeding a bathroom wall heater from a FCU in the airing cupboard. The feed to the FCU (spur off the ring) was normal grey stuff.

I also assumed it was rubber but like you when I touched it it was certainly PVC.
 
I've never seen this stuff for real. If anyone can liberate some for the museum it would be much appreciated!
 
Not black PVC but found some white rubber t+e during a rewire this week. Only seen it once before. I don't know why this short piece was there between a socket and FCU as all the other wiring was PVC. Marked British Insulated Cables Limited. Cable is 3/.029Black PVC twin (and earth) cable Rubber - EletriciansForums.net
 
I have a load of that cloth covered poly butyl jute cable somewhere in a few sizes. On the subject of unusual cable, anyone else come across 2.5mm 3core and earth? This cable is made by BICC and has a 1mm CPC. Was used for a 3 phase supply to a fan motor for a hot air heating system.
Black PVC twin (and earth) cable bicc - EletriciansForums.net
 
I'm sure I have seen black sheathed twin in the past. Never thought much about it at the time though, and it was some time ago. Maybe I didn't though, dunno!! I have a feeling it was slightly like a number eight in shape when viewed in cross section. But with the pinched middle section more angular and squared in shape
I have around 20 rubble bags of scrap to weigh in, and will have a little scan through it before doing so.
 

Reply to Black PVC twin (and earth) cable in the Electrical Forum area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock