Working Group Details
LV3.6.1 - 3.6.1 LV Gap Type Surge Protective Device Components WG
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PC62.31 - Standard for Test Methods and Preferred Values for Low-Voltage Gas Discharge Tube Surge-Protective Components
This standard applies to low voltage gas discharge tube (GDT) surge-protective components for application on systems with voltages less than or equal to 1000 V rms or 1500 V dc. These protective components are designed to limit voltage surges on balanced or unbalanced communication circuits and on power circuits operating from dc to 420 Hz. This standard contains a series of standard test criteria for determining the electrical characteristics and ratings of gas discharge tube surge-protective components. The tests in this standard are intended as design tests as defined in the IEEE Standards Dictionary [B1] , and provide a means of comparison among various gas discharge tube surge-protective components. Gas discharge tubes are used to provide over-voltage protection in electrical circuits. When the breakdown voltage of the gas discharge tube is exceeded, the normal high-impedance state of the tube changes to a low-impedance state to allow the gas discharge tube to conduct the surge discharge current. After the tube conducts the surge discharge current, it interrupts the flow of power follow current and returns to its high-impedance state.
Superseded. Gas-tube surge-protective devices for application on systems with voltages 1000 V rms or 1200 V dc are covered. These protective devices are designed to limit voltage surges on balanced or unbalanced communication circuits and on power circuits operating from dc to 420 Hz. Test criteria for determining the electrical characteristics of these devices are provided.
C62.32-2004 - IEEE Standard Test Methods for Low-Voltage Air Gap Surge-Protective Device Components (Excluding Valve and Expulsion Types)
This standard applies to air gaps for overvoltage protection applications on systems with operating voltages equal to or less than 600 V rms. This standard contains a series of standard tests for determining the electrical characteristics of these air gap devices. This standard?s test criteria and definitions provide a common engineering language beneficial to users and manufacturers of air gap surge protective devices.
C62.31-2006 - IEEE Standard Test Methods for Low-Voltage Gas-Tube Surge-Protective Device Components
This standard applies to gas-tube surge-protective devices for application on systems with voltages, 1000 V rms or 1200 V dc.