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IEC - 61643-21 AMD 1

AMENDMENT 1 Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods

inactive
Organization: IEC
Publication Date: 1 April 2008
Status: inactive
Page Count: 46
ICS Code (Power transmission and distribution networks): 29.240
ICS Code (Substations. Surge arresters): 29.240.10
scope:

This International Standard is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoItages.

The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.

Document History

July 1, 2012
Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods
This International Standard is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient...
July 1, 2012
AMENDMENT 2 Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods
A description is not available for this item.
April 1, 2009
Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods
This International Standard is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient...
61643-21 AMD 1
April 1, 2008
AMENDMENT 1 Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods
This International Standard is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient...
September 1, 2000
CORRIGENDUM 1 Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
This International Standard is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient...
September 1, 2000
Low Voltage Surge Protective Devices - Part 21: Surge Protective Devices Connected to Telecommunications and Signalling Networks - Performance Requirements and Testing Methods
A description is not available for this item.

References

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