4-20mA loop color code

[jle]

What is he (+) and (-) 24vdc loop color code? I see brown and orange, but dont't know which is which. Simple question, but I haven't found the answer yet.

 

[jsummerfield]

In the USA few insulation colors are assigned by codes and standards. Black and white are common wfor 4-20 mAdc signals ith the 24 Vdc source being black. Black and red are also common. See corporate specification requirements.

NEC color examples include gray, green, white, blue.
200.6 Means of Identifying Grounded Conductors. ...


John