Colour coding of electrical panels and transformers 1

[blaar]

Hi everyone

I am trying to find out if there is a standard out there that states which colour electrical panels and transformers should be - according to their voltage.

At one company they make the 380V panels/transformers orange, 11kV panels/transformers green and 66kV panels/transformers grey.

Is this according to a certain standard?

I am looking for a electrical colour coding standard that I can use in a coal mining environment.

Thanks in advance...

 

[sendoUK]

I'm not personally aware of any set standard for ratings of panels, it is normally either whatever the consultant specifies, or manufacturers standards.

 

[davidbeach]

Gray for all voltage levels seems to be the most common "standard".

 

[ScottyUK]

Mid-blue is common in the water industry. Beige is used by manufacturers of horrible kit-form boards from Europe. Grey is pretty much the standard everywhere else.


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[slavag]

Hi.
For the all types of panels today in EU : standard color is RAL7035, some type of gray, before was RAL7032.
Water industry: blue and white .
Regards.
Slava

 

[EEJaime]

I don't think you can go wrong with any color scheme you select. I've seen everything up through bright red for emergency power equipment and yellow/black danger zone striping for MCC's. I would just recommend a thorough, consistent, completely unambiguous equipment nameplate on each and every piece of equipment in your plant. Designation and description, voltage system, amperage ratings, loads served, power source, etc..., all of which should tie in and match the information on the single line diagrams in the plant. Well, one could hope.

 

[jraef]

The only enclosure color scheme I have seen on electrical equipment here in the US is that Fire Pump controls must be red.


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[alehman]

In the U.S. ANSI 61 gray is by far most common, probably followed by various shades of white.

 

[jimgineer]

Yes I am also unaware of any code requirements for the color of equipment. As a matter of fact, I've seen some very oddly colored equipment (non grey, green), and I've seen equipment specified for more 'themed' and specialized applications.

As far as conductors go, yes there are standards:

Others can correct me if I'm wrong but standard practice is for 480V systems:

Brown Yellow Orange for Phase Conductors
White for Nuetral
Green for Ground

120v/208v systems:
Black Blue Red for phase
White for nuetral
Green for ground

Regards

 

[jimgineer]

And you mentioned orange equipment. If this was in a refinary, industrial setting, it might not be a big deal but ultimately remember that the customer pays the bills for the project, and if a customer gets an orange transformer delivered and they hate it, this could be a problem.

I've never seen orange equipment but I have seen plenty of examples where for some reason clients put the aesthetics of a project as a higher priority than the functionality of it.

 

[Blackcountryman]

jimgineer said
"I've never seen orange equipment but I have seen plenty of examples where for some reason clients put the aesthetics of a project as a higher priority than the functionality of it."

So true, once worked on a project where the Architect wanted the fire alarm break point changed to green as the redd stood out too much !!!!!

The laughter in the meeting pointed out the error of his ways