Wiring Colour Codes and Standards (control panel & machine) ?

[WorkshopChris]

I hope this is the best place to post this.

Was wondering what the collective experience was with regards to wiring colour codes and standards for machine wiring?

A few hours of googling has come up with nothing consistent.
I have a upcoming project that require a re build, re wire with modifications and alterations.
At the moment the cables are either black or blue , this appears to be a random choice.

The only consistent standard i can find is:-
Mains Ac Power = Black.
From then on everything i read said something different.

Quite a few references say all neutrals in Blue.
That doesn't help with mixed voltage supplies.

Was thinking of going with.

Black = All Mains Power

Brown = 230v Ac Control
Blue = 230v Ac Control

Red = Remaining mixed low voltage AC. (under 110V)

Purple = 15v Dc

Light Blue = 24v Dc

Pink = 110v Ac

Grey = 110v Dc

Yellow = 5V Dc

White = Digital control low voltage.

All will be Tri Rated with numbered sleeves on each end.


Any suggestions welcome , trying to make sure future diagnostics are as easy as possible.

 

[daleyd]

We use brown and blue for mains (240), 24 v is pink, though it depends if customers have specific requirements. (Systems of varying age seem to have all sorts of different colour schemes). We don't use much else apart from these, unless 3 phase is involved.

We do have a document somewhere detailing the entire range of colours we specify for projects, I will see if I can find find it and post it.

 

[Ton-up]

I work on many various machines in the woodwork industry from Europe, Far East and America- they are all different!

As long as a drawing is available, your selection would be fine!

 

[Robotstar5]

EN 60204 is your bible for machine wiring, a bit of googling can save buying a copy

 

[WorkshopChris]

Thanks everyone for the advise, think i will go with colour as posted,
I agree nearly every machine have worked on has something slightly different.

EN 60204 is your bible for machine wiring

Thanks found something relevant( for once i have something to thank the Chinese for)

Only something out of Europe would state :-

13.2.3 Identification of the neutral conductor.
The colour of this conductor shale be BLUE.
Then in
13.2.4 Identification by colour
Where colour coding is used for identification conductors, it is recommended they be colour coded as follows:-
BLUE dc control circuits.