Having drilled through the twin and earth suppy to a 13amp socket outlet, we are told it is OK to use butt crimps to make the repair. But is it best if we use parallel insulated crimps, or would those with funnel ends be better? Also, when making the repair do we strip back sufficient insulation from the two damaged ends so that both ends will go right through the crimp (one put in from each end)?
I use the Insulated Crimp Terminal - Butt Splices, which are just a straight insulated coupler. You'll find they will not be to much room for the cables to cross over within the butt. So need to make sure you make enough off cable to enter butt without any conductor showing and get a good contact. A good pair of rachet crimps, to crimp up with would be recommended too.
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