ASTM B979-12(2018)

Annotation of standard text ASTM B979-12(2018) :

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)