ELECTRICAL SAFETY - CLASSIFICATION OF INTERFACES FOR EQUIPMENT TO BE CONNECTED TO INFORMATION AND COMMUNICATIONS TECHNOLOGY NETWORKS
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
3.1 Definitions from IEC 60950-1
3.2 Definitions from IEC 60950-21
3.3 Additional definitions for this document
3.4 Abbreviations
4 Reference configuration
5 Safety categories of interfaces provided for connection
to an information and communications technology network
5.1 SELV circuits
5.2 TNV circuits
5.3 User information
5.4 RFT circuits
6 Phenomena affecting the safety of interface ports
6.1 Network Environment 0
6.2 Network Environment 1
7 Determination of circuit type
Annex A (informative) Consideration of interface phenomenon
Annex B (informative) Worked examples of certain network
interfaces
Annex C (informative) Conditions for Network Environment 0
Annex D (informative) Voltage ranges of SELV circuits and
TNV circuits
Bibliography
Applies to equipment interfaces. It covers equipment appropriately interconnected.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 74 |
