T

Tony_spark

Hi there. I’m currently preparing for my Am2. I’m a little confused on how to identify/mark three phase conductors. There is a 3 phase motor to connect up which is wired in 2.5 singles.
I know the Phase colours are Brown Black Grey. My question is; if Black and Grey conductors aren’t available would I just use Brown Singles and mark the cables with Black and Grey PVC Tape to identify the phases? Would I then have to ferrule the conductors with L1 – L2 L3?

Any help would be greatly appreciated.
 
This is covered in Appendix 7 of BS7671.
You can either use tape or alpanumerics, you don't have to do both.
 
if your using alphanumerics check to make sure its not supposed to be U1,V1,W1. ive never seen L1,L2,L3 on motor cabling ( i could be wrong though, just speaking from experience). think id go with the tape personally, no arguing with colours.
 

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3 Phase cable Identification
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