The worker has spools with lots of colors, when one runs out they are free to use another.
Assume colors mean nothing, when it comes to internals of devices sold globally.
Originally Posted by john61ct
Which color code scheme you follow is not so critical.
As long as you pick one standard, **you** know what's what, and follow it consistently throughout.
I use yellow for DC negative return,
save black for AC live phase leg, do **not** want those confused ever.