Mimic on the control panels and busbar colour coding

[RRaghunath]

Colour coding of mimic on the Control panels / desks is widely practiced in Substations / power stations.

I am not sure the basis for the same such as IEC / IEEE references etc.
Any help?

Thanks.

 

[cranky108]

We always did it because it reduced confusion. But we only did it where the arrangement might become confused.
We also consitered what someone's thinking processes might be at 3am, with a hangover.

 

[rbulsara]

There is no code or standard on the mimic color that I know of. Reasons put forth by cranky108 are the primary drivers, for clarity and therefore enhancing safety.

 

[cranky108]

As far as color, we just used the same colors the powerpool used on there maps.

 

[RRaghunath]

I have seen National Grid (UK) using Black for 132kV and Green for 33kV OHLs in their power system layout drawings. I find similar practice exists in many other countries in the world including Mid East where I am currently and India.

I think there should be a common code European or American (Like we have code for Protective relay device numbering -IEEE/ANSI C37.2).

 

[cranky108]

If there is a common code I'm sure several of us would like to know what it is.