This standard stipulates the manufacture and use of standard air gaps for voltage measurement, and is applicable to the measurement of the following voltage peaks: a) power frequency AC voltage; b) standard lightning impulse full-wave voltage; c) operating impulse voltage; d) DC voltage. Air gaps fabricated and used in accordance with this standard are mainly used for performance testing of high-voltage measuring systems.
GB/T 311.6-2005 history
2005GB/T 311.6-2005 Voltage measurement by means of standard air gaps
1983GB/T 311.6-1983 High voltage test techniques--Part 5:Sphere-gaps for voltage measurement