ITU-T K.77
Characteristics of metal oxide varistors for the protection of telecommunication installations
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| Organization: | ITU-T |
| Publication Date: | 1 July 2019 |
| Status: | active |
| Page Count: | 40 |
scope:
This Recommendation:
- gives the characteristics of metal oxide varistors (MOVs) used in accordance with [b-ITU-T K.11] for the protection of power supply circuits and signal circuits of telecommunication installations against overvoltages;
- does not deal with combinations of MOV with other over voltage protective component such as gas discharge tube (GDT), avalanche breakdown diode (ABD), etc.;
- does not deal with mountings and their effect on MOV characteristics, the characteristics apply to MOV as a component, mounted only in the ways described for the tests;
- does not deal with mechanical dimensions;
- does not deal with quality assurance requirements.
Document History
ITU-T K.77
July 1, 2019
Characteristics of metal oxide varistors for the protection of telecommunication installations
This Recommendation:
– gives the characteristics of metal oxide varistors (MOVs) used in accordance with [b-ITU-T K.11] for the protection of power supply circuits and signal circuits of...
December 1, 2013
Characteristics of metal oxide varistors for the protection of telecommunication installations Amendment 1: New Appendix III – Characterizing thermally protected MOVs using a.c. step stress testing
A description is not available for this item.
May 1, 2011
Characteristics of metal oxide varistors for the protection of telecommunication installations Corrigendum 1
This Recommendation:
– gives the characteristics of metal oxide varistors (MOVs) used in accordance with [b-ITU-T K.11] for the protection of power supply circuits and signal circuits of...
January 1, 2009
Characteristics of metal oxide varistors for the protection of telecommunication installations
This Recommendation:
– gives the characteristics of metal oxide varistors (MOVs) used in accordance with [b-ITU-T K.11] for the protection of power supply circuits and signal circuits of...