High-voltage AC system composite insulator artificial pollution test DL/T 659-2004

Author: National Development and Reform Commission of the People's Republic of China
Publisher:
Publish Date: 2004-06-01
Features: This standard specifies the determination of power frequency pollution withstand characteristics of composite insulators (hereinafter referred to as insulators) for users of overhead transmission lines, substations, and electrified railway contact nets with a rated voltage higher than 1000V and a frequency of (50~60) Hz alternating current, which are exposed to polluted atmospheric conditions. Line-post insulators, high-voltage pillar insulators for power stations, high-voltage line cross-arm insulators, and composite spacer insulators are within the scope of application of this standard.