Recommendation ITU-T K.50 Corrigendum 2 (07/2021) Safe limits for operating voltages and currents in telecommunication systems powered over the network
Summary
History
FOREWORD
Table of Contents
1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Voltage and current limits
     6.1 General
     6.2 Method 1: Voltage-limited RFT (RFT-V) circuits
          6.2.1 Limits under normal operating conditions
          6.2.2 Limits under single fault conditions
          6.2.3 Limits with one conductor earthed
     6.3 Method 2: Current-limited RFT (RFT-C) circuits
          6.3.1  Limits under normal operating conditions
          6.3.2 Limits under single fault conditions
          6.3.3 Limits with one conductor earthed
          6.3.4 Installation instructions
          6.3.5 Coordination with surge protective devices
7 Work practices
     7.1 General work practices
     7.2 Special work practices
Appendix I  Specialized remote powering at TNV (ES1 & ES2) voltages
     I.1 Introduction
     I.2 Fibre to the distribution point, FTT(dp), reverse power feeding (RPF)
Bibliography
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