To my mind, you can use any colour you like, except for green, cream, and green/yellow, these are reserved for PEN, earth, and bonding cabled. All other colours can be over sleeved.
Except for vehicles, where green means fused ignition supply with the old Lucas wiring colours. The trace shows what it does.
Why green was selected when red/green colour blindness is the most common, not a clue. Brown would have seemed to look more like earth!
To my mind, you can use any colour you like, except for green, cream, and green/yellow, these are reserved for PEN, earth, and bonding cabled. All other colours can be over sleeved.
Except for vehicles, where green means fused ignition supply with the old Lucas wiring colours. The trace shows what it does.
Why green was selected when red/green colour blindness is the most common, not a clue. Brown would have seemed to look more like earth!
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