ASTM B979-12(2026)

Detail information

Designation: ASTM B979-12(2026)

Publication date: 01/04/2026

Pages: 2

Country: American technical standard

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Anotation

This specification covers non-specular surface finishes on overhead aluminum electrical conductors to establish a uniformity of conductor finish that is acceptable to the user. Such a specification will furnish a basis for consistent manufacturing process control. Overhead aluminum electrical conductors, when installed, tend to have a "reflective" or "specular" surface that can make a transmission line more noticeable in appearance against the background landscape. A factory treatment process of the outer surface of the aluminum wires can turn the surface finish into a dull, non-reflective, or "de-glared" matte grey finish that allows the conductor to become less visible when observed from a distance and enables the transmission line to blend in with the skyline or landscape background. This specification addresses ordering information, equipment, test procedure, requirements, and retest.


Keywords:
deglared, non-specular, overhead electrical conductors,, ICS Number Code 29.240.20 (Power transmission and distribution lines)