American 2 Letter Color Abbreviation Standard?

theColonel26 · Jun 4, 2018

Is there an American standard for 2 Letter Color Abbreviation?

I found this for IEC, https://www.hitechcontrols.com/cables/technical-information/48-color-abbreviations.html thought I haven't found an official source for the IEC reference.

Some times I find Black as BL and sometimes BK and some times Blue as BU and sometimes BL. So I always have to find if there is BU or BK to figure out whether BL is Blue or BL is Black.

Also is there a standard definition for 3 Letter reservations?

dogleg43 · Jun 4, 2018

theColonel26 said:
Is there an American standard for 2 Letter Color Abbreviation?

I found this for IEC, https://www.hitechcontrols.com/cables/technical-information/48-color-abbreviations.html thought I haven't found an official source for the IEC reference.

Some times I find Black as BL and sometimes BK and some times Blue as BU and sometimes BL. So I always have to find if there is BU or BK to figure out whether BL is Blue or BL is Black.

Also is there a standard definition for 3 Letter reservations?

I realize my comment does not answer your question but a wise man once said: “The beauty of standards is there’s so many to choose from.”

James Mcquade · Jun 4, 2018

it all depends on what your need is.

for controls, look at nfpa 79. electrical standard for industrial machinery

james

Bit_Bucket_07 · Jun 4, 2018

theColonel26 said:
Is there an American standard for 2 Letter Color Abbreviation?

I found this for IEC, https://www.hitechcontrols.com/cables/technical-information/48-color-abbreviations.html thought I haven't found an official source for the IEC reference.

Some times I find Black as BL and sometimes BK and some times Blue as BU and sometimes BL. So I always have to find if there is BU or BK to figure out whether BL is Blue or BL is Black.

Also is there a standard definition for 3 Letter reservations?

I don't know about the standards, but I've always used BK and BU, just to avoid using BL.

LadderLogic · Jun 5, 2018

Actually, I have been encountering three-letter color abbreviations more often than the two-letter ones. I always use ORG for orange, not ORN as it can be easily confused with GRN.

There is also the unending confusion between PUR and VIO for the same color.

Bit_Bucket_07 · Jun 5, 2018

LadderLogic said:
Actually, I have been encountering three-letter color abbreviations more often than the two-letter ones. I always use ORG for orange, not ORN as it can be easily confused with GRN.

There is also the unending confusion between PUR and VIO for the same color.

Memorizing resistor color codes is what led me to always choose violet over purple. Violet gives willingly.

American 2 Letter Color Abbreviation Standard?

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