wrote:
Pet @ www.gymratz.co.uk wrote:

TheScullster wrote:

So what method of joining is used if you wish to extend cables that

are to

be buried/plastered over?

Replace back to the previous joint/socket etc that's accessible ?


Clearly impractical in many cases. Soldering is good, but proper
mechanical support of the joint is essential, as solder is very weak.
The effective way to give this support is to twist the 2 copper wires
together for many turns. The far ends will not move relative to each
other. But insulation?


Esy. Slip heatshrink over the cables before soldering, and then slide
over the joint and shrink.

A larger bore piece goes over the complete cable.


I await the day when we spot weld all joints.


NT