10 mm cable joimt

[Fizza]

Morning quick question i went to replace a cooker switch at my parents which should be a 10 min job the issue was whoever fitted the socket have left the cables to short, the insulation was totally ecposed on the neutral etc,

There is no slack on the cable to refit the socket and need to extend the cable i dont think its 6mm as i could use yellow crimps, what is the best wsy to ectend 10 mm cable pls

 

[Harry Bloomfield]

Morning quick question i went to replace a cooker switch at my parents which should be a 10 min job the issue was whoever fitted the socket have left the cables to short, the insulation was totally ecposed on the neutral etc,

You could fit sleeving, over the damaged insulation?

 

[ebee]

I read it differently, if the insulation is exposed then the sheath is missing, if the conductor is exposed then the insulation (and sheath) is missing.
So is it missing outside the back box or within it, is conductor exposed and if so to the extend of potential for s short circuit to something or is it just something tgat needs additional care when opening up to make a connection but otherwise when in normal use is it ok?

If its just some sheathing missing from the conductor then Harrys suggestion of sleeving is perhaps the way forward.

 

[chivers67]

Needs a photo

 

[Fizza]

Hi there thank you for your reply the cabes are too short in the back box so i need to extend them to wire the socket

 

[Taylortwocities]

i dont think its 6mm

Are all three conductors stranded =10mm
Or is the earth solid = 6mm (or 4mm).

If you have yellow crimps then they will tell you if it’s 6mm.

 

[Fizza]

Hi there the red and black are stranded and the earth is solid soi would like to extend the red and black if the feed and load thank you

 

[Taylortwocities]

That makes your cable 6mm² then. Yellow crimps would do it, but you'd need a proper set of ratchet crimpers to make the joint failure proof.

Personally I hate junctions in high current applications. They are often doomed to failure. May be better to use a high -current terminal block, like these https://docs.rs-online.com/e07e/0900766b81587ec9.pdf

 

[Fizza]

Thank you for your help

 

[Fizza]

just so i understsnd the stranded red and black is 6 mm and not 10mm

 

[Taylortwocities]

If your cable has red & black stranded and solid central earth wire then it will be either 4mm² or 6mm².
For that age of cable, on a standard cooker circuit 99% of installations were 6mm².

Outside sheath dimensions differ by manufacturer, but roughly speaking
6mm = Nominal O.D - 13.5mm x 7mm
10mm=Nominal O.D - 17.1mm x 10mm

 

[Fizza]

Excellent thank you

 

[JohnW2]

I read it differently, if the insulation is exposed then the sheath is missing, if the conductor is exposed then the insulation (and sheath) is missing.
So is it missing outside the back box or within it, is conductor exposed and if so to the extend of potential for s short circuit to something or is it just something tgat needs additional care when opening up to make a connection but otherwise when in normal use is it ok? ... If its just some sheathing missing from the conductor then Harrys suggestion of sleeving is perhaps the way forward.

All agreed. In fact, if it is just the sheathing that is missing, then that is surely 'normal' within a back box, isn't it?

If the insulation of the neutral is also missing then, as Harry said, one could presumably just add some appropriate sleeving, or heat-shrink?

 

[sparkwright]

A yellow crimp should fit a 6mm2 cable but not a 10mm2 cable.

If it is a T+E cable, and the earth is solid (ie not standed) then it is not a 10mm2 T+E.

They do lever wagos to fit 6mm2 cable - probably the easiest way to extend the wires.

 

[ebee]

Personally I am not over enthusiastic on crimps or Wagos,

I am a fan of the Wago itself but am not quite easy of mind at the higher end.
Now that is just me , my peculiarity, and I accept that.
Give them another 50 years of use and no problems reported and I might accept them capable of everything they claim.
But - it might well prove a Tadd difficult to get my opinion then because I am approaching 70 years now, when I reach towards 120 years old I probably will not be too bothered about it.
I am more than happy to use them on lighting circuits and small power circuits though.

Crimps, well there are some well manufactured crimps and crimpers about so providing those are used rather than any cheap rubbish then ok as are Wagos.
Indeed their big brother crimps using hydraulic crimpers are used well by the big boys.