IEC 61643-21
Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods
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| Organization: | IEC |
| Publication Date: | 1 July 2012 |
| Status: | active |
| Page Count: | 140 |
| 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 overvoltages.
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
IEC 61643-21
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...
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
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.
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...