scope:

This standard is applicable to Thyristor Surge Protective Devices. It describes terms and definitions and explains methods for verifying device ratings and measuring device characteristics. The intended users of this standard are those interested in Thyristor Surge Protective Device characterization and rating verification. These devices are used primarily by the telecommunications industry to protect circuits from harmful overvoltages. The Thyristor Surge Protective Device (TSPD) is a semiconductor device that is finding widespread application in the telecommunication industry. The intent of this stand is to provide information on test methods that will reduce the possibility of disagreement and misunderstanding between TSPD vendors and users, and facilitate the determination of device interchangeability.