NPFC - MIL-STD-104
LIMITS FOR ELECTRICAL INSULATION COLOR
|Publication Date:||31 October 1986|
This standard establishes definite limits for electrical insulation colors as used on wire and cable insulations. The limits of a specified color define the extremes established for that color. The nominal defines the hue, lightness and saturation (chroma) considered most desirable for the specified color.
Colors shall be in two classes as specified. When the class is not specified, either class may be used.
Class 1: Colors in this class are for the most part, highly saturated, bright high-gloss colors for plastic and other insulating materials where the characteristics of the material permit the use of these colors.
Class 2: Colors in this class are characteristically less saturated, low-gloss colors, for fabric, rubber and other insulations for which Class 1 colors are not practicable.
Class 1 colors are applicable to all insulation materials which will accept bright, highly saturated (high chroma) pigments. In general, plastic insulations intended for use where exposure to... View More
Class 1 colors are applicable to all insulation materials which will accept bright, highly saturated (high chroma) pigments. In general, plastic insulations intended for use where exposure to direct sun-light is infrequent can be furnished in Class 1 colors. Wherever possible, Class 1 colors are preferred to Class 2 colors and should be specified. Violet may be used where purple is specified.
Class 2 colors are applicable to all insulation materials which will not accept Class 1 colors particularly where color permanence is a factor. In general, fabric and rubber materials may require use of Class 2 colors, although Class 1 colors should be specified if their use is practicable.View Less