ATC (m.v. transformers)

Air terminal compartment (i.e., air-filled as
opposed to oil-filled). Space in which to
terminate cable connections to a transformer.

ASTM

American Society for Testing Materials

Armature (motor)

An assembly composed of the rotor and the shaft

ANSI 49

Shade of gray paint color. Standard means of
describing paint color with the number indicating
the percentage of reflected light. (ANSI 0 would
be black, ANSI 100, totally reflective).

ANSI American National Standards Institute ANSI 49

American National Standards Institute
ANSI 49