
Low-voltage Surge Protective Devices Part 22: Surge Protective Devices Connected To Telecommunications And Signalling Networks - Selection And Application Principles
出版:National Standards Authority of Ireland

專家解讀視頻
Describes the principles for the selection, operation, location and coordination of SPDs connected to telecommunication and signalling networks with nominal system voltages up to 1000 V r.m.s. a.c. and 1500 V d.c.
IEC 61643-22 : 2.0 - Identical
CLC/TS 61643-22 : 2016 - Identical
CLC/TS 61643-22:2016 - Identical
CLC/TS 61643-22:2006 - Identical
IEC 61643-22 Ed. 1.0 - Identical