Definitions for "VW-1"
A rating determined by the Underwriters' Laboratories (UL) optional Vertical Wire Flame Test - the most difficult flame test for tubing. Tubings with a VW-1 rating are highly flame-retardant.
Vertical/Walk-1 HIGH-MACS‚Ì•Ä—¤ŒR‚Å‚Ì–1/4ÌB
A flammability rating established by Underwriters Laboratories for wires and cables that pass a specially designed vertical flame test. Back to Menu