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eLibrary > BS EN IEC 62368-3:2020 Audio/video, information and communication technology equipment - Safety aspects for DC power transfer through communication cables and ports >

BS EN IEC 62368-3:2020 Audio/video, information and communication technology equipment - Safety aspects for DC power transfer through communication cables and ports, 2020

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BS EN IEC 62368-3:2020 Audio/video, information and communication technology equipment - Safety aspects for DC power transfer through communication cables and ports, 2020

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Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
English [Go to Page]
CONTENTS
FOREWORD
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms [Go to Page]
3.1 Terms and definitions
3.2 Abbreviated terms
4 General requirements
5 Power transfer using ES1 or ES2 voltages [Go to Page]
5.1 General requirements
5.2 Electrical-caused injury, electrical sources and safeguards
5.3 Electrical-caused fire, power sources and safeguards [Go to Page]
5.3.1 DC power transfer interconnection to building wiring
5.3.2 DC power transfer interconnection to other equipment
5.4 Safeguards to protect against a single fault condition in the PSE [Go to Page]
5.4.1 Requirement for the PSE
5.4.2 Requirement for the PD
6 Power transfer using RFT [Go to Page]
6.1 General requirements
6.2 Connection to ICT networks
6.3 Electrically caused injury [Go to Page]
6.3.1 Classification and limits of electrical energy sources
Figures [Go to Page]
Figure 1 – Maximum current after a single fault [Go to Page]
6.3.2 Accessibility to electrical energy sources and safeguards
Figure 2 – Maximum voltages permitted after a single fault [Go to Page]
6.3.3 Safeguards
6.3.4 Installation instructions
6.4 Electrically caused fire [Go to Page]
6.4.1 Classification of RFT power sources
6.4.2 Fire protection requirements
Figure 3 – Limits for capacitance values of RFT circuitsof the total system
Table 1 – RFT-V circuits, power and current limitations
Annex A (informative)Remote power feeding [Go to Page]
A.1 Overview
A.2 Operational considerations
A.3 Safety considerations
A.4 Principle of remote power feeding [Go to Page]
A.4.1 RFT-C circuits
Figure A.1 – Example of a remote power feeding RFT-C system
Figure A.2 – Example of a remote power feeding RFT-C system with repeater [Go to Page]
A.4.2 RFT-V circuits
A.5 Safety aspects [Go to Page]
A.5.1 Steady-state body current
Figure A.3 – Example of a remote power feeding RFT-V system [Go to Page]
A.5.2 Body resistance
A.5.3 Charged capacitance
Annex B (informative)Rationale for 5.4
Bibliography [Go to Page]

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BS EN IEC 62368-3:2020 Audio/video, information and communication technology equipment - Safety aspects for DC power transfer through communication cables and ports, 2020

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