Joining Cable

[peterniss]

For joining cable in inaccessible places (under floorboards) is it acceptable in regs to twist and solder, and insulate with tape? (I mean 1.0 1.5 2.5mm sq single core cables.)

Thanks Peter

 

[oharaf]

Twist I would probably not, soldering is fine, insulation tape NO,

The simplest method I think is Crimp and heat shrink!!!

If you solder then Heat shrink!! not tape

 

[davelx]

Co-incidently I had to do a soldered joint over the weekend.

I strip about 2cm of each core, lie them side-by-side and wrap round with a strand from a 1.5mm conduit single.

Then solder. Then heat-shrink over each conductor, and overall heat-shrink. Staggering the joints as with crimps makes it neater/easier.

 

[ban-all-sheds]

davelx - you might enjoy reading this:

http://www.markhellerelectric.com/solder.pdf

 

[davelx]

That would be quite a joint using 2.5mm^2, let alone 4 or 6!

I pulled some of that old braided cloth covered rubber stuff (disused) out at the same time - looked fine until you bent it then the insulation dropped right off.

 

[ricicle]

For joining cable (under floorboards)and insulate with tape? (I mean 1.0 1.5 2.5mm sq single core cables.)

 

[mjrawlinson]

get a nice set of crimpers and use crimps as mentioned above and stagger the joints!

 

[peterniss]

Thanks for the advice. I had done it twisted and soldered and taped it but got myself a crimping tool and some heat shrink sleeve today and have re-done it. It worked very well and much neater.

Regards

Peter