ITU-T K.28-2012 PDF

Scope: Recommendation ITU-T K.28 defines the parameters,test circuits and performance values of thyristor-based surge protective devices (SPDs) used for the protection of telecommunication installations (for example, exchange equipment, access equipment, telecommunication lines and subscriber or customer equipment).This Recommendation should be used for the harmonization of existing or future specifications issued by thyristor-based SPD manufacturers, telecommunication equipment manufacturers,administrations or network operators.

ITU-T K.28-2012 Referenced Document

ITU-T K.20-2011 (Pre-Published) Resistibility of telecommunication equipment installed in a telecommunications centre to overvoltages and overcurrents*， 2024-04-20 Update
ITU-T K.21-2011 Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents Study Group 5*， 2024-04-20 Update
ITU-T K.45-2011 Resistibility of telecommunication equipment installed in the access and trunk networks to overvoltages and overcurrents Study Group 5*， 2024-04-20 Update
ITU-T K.82-2010 Characteristics and ratings of solid-state@ self-restoring overcurrent protectors for the protection of telecommunications installations (Study Group 5)

2012 ITU-T K.28-2012 Parameters of thyristor-based surge protective devices for the protection of telecommunication installations (Study Group 5)
1993 ITU-T K.28-1993 Characteristics of Semi-Conductor Arrester Assemblies for the Protection of Telecommunications Installations - Protection Against Interference (Study Group V) 14 pp