terminations

[theo32]

right then...

im in my 2nd year of my 2330 level 2, working for a contractor anyway when im doing terminations in switches say my boss has told me never to double the conductor over when putting into the switch.

but when i was at college by tutor was saying thats its bad practise not to double it over.

is there a right or wrong way? which do you guys do?

cheers

 

[RF Lighting]

It depends.

Normal practice is to double the end over if there is only one conductor in a terminal, and leave the cable unbent if there are two or more conductors.

The reason for doubling over is that there is a risk of the terminal screw missing the conductor altogether, or just pinching the very edge of it. If you double the end over, there is less chance of this happening.

Also a doubled over conductor has a larger surface area in contact with the accesory terminal, therefor the connection will have a lower resistance.

 

[Qedelec]

Rule of thumb is to get as much copper in the terminal as possible. Double all single conductors up to 2.5mm.

 

[securespark]

Ask you boss why he thinks this way. Seems very odd to me, but don't tell him that!!

 

[pdcelec]

bending the conductors is causing stress in the cable. Not bending the conductors is causing stress to the boss. Catch 22