Hi I may have posted a similar question before so apologies if I’m repeating myself. I was working with another electrician the other day second fixing a house and noticed that he doubled over the cpc’s when connecting socket outlets. Not the line or neutral however. This was using 2.5 t&e with 1.5mm cpc. I personally have experimented with different termination techniques over the years and discovered that there can be no’one rule fits all’ technique as terminal types differ greatly. However on socket outlets the design across the board seems to be a roughly square terminal with rounded sides. I find that 2.5 sit quite well side by side and the screw doesn’t push down on top of them as such but pushes them out to opposite sides of the terminal where they are trapped in the corner and achieves a decent enough connection in my opinion. With the cpc being 1.5 mm2 ,using the same technique works ok but as it is smaller there is less copper for the screw to make contact with and the conductor may attempt to slip up the side of the screw ( however the design of Click sockets that I use looks like that couldn’t happen).
When terminating anything I normally double over a single conductor if there is only one going in the terminal if the terminal allows it but wouldn’t double over if two or more conductors are going in.
With the socket outlets, there is still a lot of empty space in the cpc terminal with two conductors put in straight and with the ‘fill the hole with copper’ voice ringing in my ears, the temptation would be to double over the two 1.5mm2 cpc’s but I don’t like the idea of a single screw trying to equally clamp on what is now essentially 4 x 1.5mm2 cpc’s. When experimenting with straight or doubled over terminations, both pass the pull test ok.
I know that this and similar topics have been discussed to death over the years but keen to hear others opinions. When watching various electricians social media videos, it’s clear that both methods are being used so I’m guessing that it’s down to what way you were taught / personal preference / speed. Who knows!
Thanks
