LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 22: SURGE PROTECTIVE DEVICES CONNECTED TO TELECOMMUNICATIONS AND SIGNALLING NETWORKS - SELECTION AND APPLICATION PRINCIPLES
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Description of technologies
5 Parameters for selection of SPDs and appropriate tests
from IEC 61643-21
6 Risk management
7 Application of SPDs
8 Multiservice surge protective devices
9 Coordination of SPDs/ITE
Annex A (informative) - Voltage-limiting components
Annex B (informative) - Current-limiting components
Annex C (informative) - Risk management
Annex D (informative) - Transmission characteristics related
to IT systems
Annex E (informative) - Coordination of SPDs/ITE
Annex F (informative) - Protection of Ethernet systems
Annex G (informative) - EMC impact of SPDs
Annex H (informative) - Definition of internal port (Source:
ITU-T K.44)
Annex I (informative) - Maintenance of SPDs for Information
Technology
Annex J (informative) - Earth potential rise (EPR)
Annex K (informative) - References and examples of risk
management based on IEC 62305-2
Bibliography
Defines 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.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 37 |
