UNE 21-009-1989
Overhead wires. Wire laid electrodes

Standard No.

UNE 21-009-1989

Release Date

1989

Published By

ES-AENOR

Scope

The pulleys covered by this standard will be designated by the letters Pt followed by a number that will express, in millimeters, the diameter d of the pulley and then the number of this standard. Example of designation of a 240 mm diameter pulley: