Audio/Video, Information and Communication Technology Equipment - Safety - Power transfer between Communications equipment ports using Communications cabling at ≥ 60 Vd.c. and AC

Equipements des technologies de l'audio/vidéo, de l'information et de la communication - Sécurité - Transfert de puissance entre les accès d'équipements de communication au moyen de câblages de communication ≥ 60 V en courant continu et en courant alternatif

Oprema za avdio/video, informacijsko in komunikacijsko tehnologijo - Varnost - Prenos moči med vrati komunikacijske opreme z uporabo komunikacijskih kablov pri ≥ 60 Vd.c. in AC

General Information

Status
Not Published
Public Enquiry End Date
16-Apr-2023
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
02-Feb-2023
Due Date
22-Jun-2023
Completion Date
21-Apr-2023

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SLOVENSKI STANDARD
oSIST prEN IEC 63316:2023
01-april-2023
Oprema za avdio/video, informacijsko in komunikacijsko tehnologijo - Varnost -
Prenos moči med vrati komunikacijske opreme z uporabo komunikacijskih kablov
pri ≥ 60 Vd.c. in AC
Audio/Video, Information and Communication Technology Equipment - Safety - Power
transfer between Communications equipment ports using Communications cabling at ≥
60 Vd.c. and AC
Equipements des technologies de l'audio/vidéo, de l'information et de la communication -
Sécurité - Transfert de puissance entre les accès d'équipements de communication au
moyen de câblages de communication ≥ 60 V en courant continu et en courant alternatif
Ta slovenski standard je istoveten z: prEN IEC 63316:2023
ICS:
31.020 Elektronske komponente na Electronic components in
splošno general
33.160.01 Avdio, video in avdiovizualni Audio, video and audiovisual
sistemi na splošno systems in general
oSIST prEN IEC 63316:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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108/799/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63316 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-01-27 2023-04-21
SUPERSEDES DOCUMENTS:
108/773/CD, 108/792/CC

IEC TC 108 : SAFETY OF ELECTRONIC EQUIPMENT WITHIN THE FIELD OF AUDIO/VIDEO, INFORMATION TECHNOLOGY AND
COMMUNICATION TECHNOLOGY
SECRETARIAT: SECRETARY:
United States of America Ms Valara Davis
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:


Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of
• any relevant patent rights of which they are aware and to provide supporting documentation,
• any relevant “in some countries” clauses to be included should this proposal proceed. Recipients are
reminded that the enquiry stage is the final stage for submitting "in some countries" clauses. See
AC/22/2007.

TITLE:
Audio/Video, Information and Communication Technology Equipment – Safety – Power transfer
between Communications equipment ports using Communications cabling at ≥ 60 Vd.c. and AC

PROPOSED STABILITY DATE: 2027

Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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NOTE FROM TC/SC OFFICERS:

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1 CONTENTS
2
3 FOREWORD . 5
4 INTRODUCTION . 7
5 1 Scope . 8
6 2 Normative references . 9
7 3 Terms and definitions . 10
8 3.1 Terms and definitions . 10
9 3.2 Abbreviated terms . 13
10 4 General requirements . 13
11 5 Communications power transfer using ≥ 60 V DC but ≤ 120 V DC, classified as
12 external ES2 circuit . 13
13 5.1 General Requirements . 13
14 5.2 Electrical-caused injury, electrical sources and safeguards . 14
15 5.3 Electrical-caused fire, power sources and safeguards . 14
16 5.3.1 DC power transfer interconnection to building wiring (3.1.1) . 14
17 5.3.2 DC power transfer interconnection to other equipment . 15
18 6 RFT-V and -C Network Powering (ES2 or ES3) . 15
19 6.1 General requirements . 15
20 6.2 General . 15
21 6.3 Connection to ICT networks operating at RFT . 16
22 6.4 Electrically caused injury . 17
23 6.4.1 Classification and limits of electrical energy sources . 17
24 6.4.2 Accessibility to electrical energy sources and safeguards . 24
25 6.5 Electrically caused fire . 26
26 6.5.1 Fire Protection requirements for RFT power sources . 26
27 7 AC/DC Power transfer of Hazardous Voltage Coax power circuits used by Cable TV
28 utility service providers . 26
29 7.1 General requirements . 26
30 7.2 Electrically caused injury . 27
31 7.2.1 Classification and limits of electrical energy sources . 27
32 7.2.2 Accessibility. 27
33 7.2.3 Safeguards . 27
34 Annex A (informative) Remote power feeding . 28
35 A.1 Overview . 28
36 A.2 Operational considerations . 29
37 A.3 Safety considerations . 29
38 A.3.1 Work practices . 30
39 A.4 Principle of remote power feeding . 30
40 A.4.1 RFT-C circuits . 30
41 A.4.2 RFT-V circuits (3.1.7) . 31
42 A.5 Safety aspects . 32
43 A.5.1 Steady-state body current . 32
44 A.5.2 Body resistance . 33
45 A.5.3 Charged capacitance . 33
46 Annex B (normative) Flammability test for fire enclosure materials of equipment . 35
47 Bibliography . 36
48

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49 Figure 1 –Field of application. 15
50 Figure 2 – Maximum current after a single fault. 18
51 Figure 3 – RFT-C circuit capacitance limits . 19
52 Figure 4 – Charge and body resistance versus touch voltage . 20
53 Figure 5 – Basic charge measuring circuit . 20
54 Figure 6 – Characterization circuit . 22
55 Figure 7 – Maximum voltages permitted after a single fault . 24
56 Figure 8 – ES3 CATV Network Example . 26
57 Figure A.1 – Field of application of this recommendation . 28
58 Figure A.2 – Example of a remote power feeding RFT-C system . 31
59 Figure A.3 – Example of a remote power feeding RFT-V system with a repeater . 31
60 Figure A.4 – Example of a remote power feeding system . 31
61
62 Table 1 . 13
63 Table A.1 . 33
64
65

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66 INTERNATIONAL ELECTROTECHNICAL COMMISSION
67 ____________
68
69 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY
70 EQUIPMENT – SAFETY – POWER TRANSFER BETWEEN
71 COMMUNICATIONS EQUIPMENT PORTS USING COMMUNICATIONS
72 CABLING AT ≥ 60 V D.C. AND AC –
73
74 FOREWORD
75 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
76 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
77 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
78 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
79 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
80 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
81 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
82 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
83 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
84 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
85 consensus of opinion on the relevant subjects since each technical committee has representation from all
86 interested IEC National Committees.
87 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
88 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
89 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
90 misinterpretation by any end user.
91 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
92 transparently to the maximum extent possible in their national and regional publications. Any divergence between
93 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
94 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
95 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
96 services carried out by independent certification bodies.
97 6) All users should ensure that they have the latest edition of this publication.
98 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
99 members of its technical committees and IEC National Committees for any personal injury, property damage or
100 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
101 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
102 Publications.
103 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
104 indispensable for the correct application of this publication.
105 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
106 rights. IEC shall not be held responsible for identifying any or all such patent rights.
107 IEC 63316 was prepared by IEC Technical Committee 108, Safety of electronic equipment within
108 the field of audio/video, information technology and communication technology. This standard
109 is intended to replace Clause 6 of IEC 62368-3 upon publication.
110 The text of this International Standard is based on the following documents:
Draft Report on voting
108/XX/FDIS 108/XX/RVD
111
112 Full information on the voting for its approval can be found in the report on voting indicated in
113 the above table.
114 The language used for the development of this International Standard is English.
115 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
116 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

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117 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
118 described in greater detail at www.iec.ch/publications.
119 The committee has decided that the contents of this document will remain unchanged until the
120 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
121 specific document. At this date, the document will be
122 • reconfirmed,
123 • withdrawn,
124 • replaced by a revised edition, or
125 • amended.
126

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127 INTRODUCTION
128 This standard prescribes safeguards, test methods and compliance requirements intended to reduce
129 the risk of fire associated with voltage and current at voltages greater than 60 V DC and AC.
130

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131 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY
132 EQUIPMENT – SAFETY – POWER TRANSFER BETWEEN
133 COMMUNICATIONS EQUIPMENT PORTS USING COMMUNICATIONS
134 CABLING AT ≥ 60 V D.C. AND AC
135
136
137
138 1 Scope
139 This standard applies to equipment ports intended to supply and receive operating power from
140 communications equipment ports using communication wires and cables. It covers particular
141 requirements for circuits that are designed to transfer AC or DC power from a power sourcing
142 equipment (PSE) to a powered device (PD), including repeaters, amplifiers, Optical Network
143 Units, Remote DSLAMS, service provider terminating equipment, remote telecommunications
144 cabinets and equipment, and midspan passive equipment connected to the PSE and PD.
145 The power transfer of equipment ports covered by this standard uses non-mains AC voltages or
146 DC voltages
147 ≥ 60 V DC classified as ES2 as defined in IEC 62368-1:2018 or, in some very controlled cases,
148 classified as ES3 as defined in IEC 62368-1:2018 .
149 EXAMPLES
150 - DC power transfer using voltages ≥ 60 V DC but ≤ 120 V DC, classified as ES2;
151 - Some telecommunications networks where the voltage was formerly called TNV-3 (see IEC 62368-1:2018, Table
152 W.3), typically used for line/span/express powering outside North America, Long Range Reverse Power Feeding,
153 HDSLx line powering ISDN, Line Powering Primary Rate E1.
154 - Some North American telecommunications networks between the utility service providers´ PSE and service
155 providers side of the PD at the PNI.
156 - For DC power transfer using voltages ≥ 120 V DC at ES3: RFT circuits and the associated telecommunications
157 network equipment and cabling used by communications service providers and communications utilities (for
158 example, line powered E1/T1, HDSLx, SHDSLx, xDSL, repeaters, and telecommunications line powering
159 up/down converters), Optical Network Units, remote DSLAMS, etc. These RFT circuits are used between the
160 utility service providers PSE and service providers side of the PD at the PNI. The customer facing ports of this
161 equipment are ≤ 60 V DC that are covered by IEC 62368-1:2018, see Annex A for deployment topologies.
162 - For AC/DC remote powering voltage above ES1 over coaxial cable in circuits used by cable television utility
163 service providers for repeaters, amplifiers, Optical Network Units. The customer facing ports of this equipment
164 are ≤ 60 V DC that are covered by IEC 62368-1:2018.
165 NOTE 1 Any communications cable that permits power transfer between communications equipment is considered a
166 communication cable even if communication does not take place. For example, a line-powering
167 upconverter/downconverter used to power remote telecommunications equipment, may just provide limited
168 communications RFT power and not necessarily any superimposed data or signalling.
169 This standard does not cover equipment ports within the scope of IEC 63315, which covers
170 equipment intended to supply and/or receive charging and/or operating power from ICT ports
171 such as PoE, USB, HDMI, audio/visual, etc. This standard does not cover ringing signals that
172 are in the scope of IEC 62949:2017.
173 This standard does not cover traditional telecommunications technologies which operate at ≤ 60
174 V DC (circuits classified as ES1 and Table ID1 in IEC 62368-1:2018) with or without ringing
175 signals (classified as ES2 and external port ID1 in IEC 62368-1:2018) as those are adequately
176 covered in IEC 62368-1:2018. Examples include Analogue Telephony, ISDN, T1, E1, VDSL,
177 SHDSL, DDS, etc.
178 NOTE 2 Communications over mains and high-voltage power transmission and distribution lines are beyond the scope
179 of this standard.

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180 2 Normative references
181 The following documents are referred to in the text in such a way that some or all of their content
182 constitutes requirements of this document. For dated references, only the edition cited applies.
183 For undated references, the latest edition of the referenced document (including any
184 amendments) applies.
185 IEC 60479-1:2018: Effects of current on human beings and livestock - Part 1: General aspects
186 IEC TS 60479-1:2005/AMD1:2016: Amendment 1 - Effects of current on human beings and
187 livestock - Part 1: General aspects
188 IEC TS 60479-1:2005/COR2: Corrigendum 2 - Effects of current on human beings and livestock
189 - Part 1: General aspects
190 IEC 60479-2: Effects of current on human beings and livestock - Part 2: Special aspects
191 IEC 60664-1:2020: Insulation coordination for equipment within low-voltage supply systems -
192 Part 1: Principles, requirements and tests
193 IEC 60695-11-5:2016: Fire hazard testing - Part 11-5: Test flames - Needle-flame test method
194 - Apparatus, confirmatory test arrangement and guidance
195 IEC 60728-11: Cable networks for television signals, sound signals and interactive services -
196 Part 11: Safety
197 IEC 60749-11: Semiconductor devices - Mechanical and climatic test methods - Part 11: Rapid
198 change of temperature - Two-fluid-bath method
199 IEC 62368-1:2018: Audio/video, information and communication technology equipment - Part
200 1: Safety requirements
201 IEC 62368-1:2018: Audio/video, information and communication technology equipment - Part
202 1: Safety requirements
203 IEC 62368-3: Audio/video, information and communication technology equipment - Part 3:
204 Safety aspects for DC power transfer through communication cables and ports
205 IEC 62949:2017: Particular safety requirements for equipment to be connected to information
206 and communication technology networks
207 IEC 62949:2017: Particular safety requirements for equipment to be connected to information
208 and communication technology networks
209 IEC 63315: Audio/Video, Information and Communication Technology Equipment – Safety –
210 DC power transfer between ICT equipment ports using ICT cabling at ≤ 60 Vd.c.
211 ISO/IEC/IEEE 8802-3:2021: Telecommunications and exchange between information
212 technology systems - Requirements for local and metropolitan area networks - Part 3: Standard
213 for Ethernet
214 ITU-T K.50: Safe limits for operating voltages and currents of telecommunication systems
215 powered over the network
216 ITU-T K.50:2018: Safe limits for operating voltages and currents of telecommunication systems
217 powered over the network

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218 ITU-T K.64: Safe working practices for outside equipment installed in particular environments
219 ATIS 0600337: Requirements for Maximum Voltage, Current, and Power Levels Used in
220 Communications Transport Circuits
221 DIN VDE 0800-3: Part 3: Safety of installations with remote power feeding
222 IEEE 802.3: IEEE Standard for Ethernet
223 NFPA 70: National Electrical Code
224 Telcordia GR-1089-CORE: Electromagnetic Compatibility and Electrical Safety
225 UL 2391: UL LLC Outline of Investigation for Equipment with Remote Feeding
226 Telecommunication Circuits Intended for Backwards Compatibility in Legacy
227 Telecommunication Equipment
228 3 Terms and definitions
229 3.1 Terms and definitions
230 For the purposes of this document, the terms and definitions given in IEC 62368-1:2018 and
231 the following apply. Terms and definitions from IEC 62368-1:2018 are indicated in bold.
232 ISO and IEC maintain terminology databases for use in standardization at the following
233 addresses:
234 • IEC Electropedia: available at https://www.electropedia.org/
235 • ISO Online browsing platform: available at https://www.iso.org/obp
236 3.1.1
237 building wiring
238 ICT and AV wires or cables that are intended to be installed wholly within a structure
239 EXAMPLE 1 Wire or cables installed in walls, under floors, in plenums, risers, etc. in a building or structure, that are
240 used to connect ICT and AV equipment in different locations within the building and that is not mains. It also includes
241 devices associated with the interconnection of the equipment. The cables may be conductive or non-conductive, such
242 as Fiber Optic cable and connectorization.
243 Note 1 to entry: Under certain circumstances, building wiring (3.1.1) may run outside the building for connection to
244 equipment (for example, a video camera outside of the building).
245 Note 2 to entry: Within this standard building wiring (3.1.1) excludes dedicated controlled wires and cables for
246 connecting known equipment on each end at the time of installation.
247 3.1.2
248 power sourcing equipment
249 PSE
250 equipment, other than dedicated external power supply unit intended to supply specific
251 equipment, supplying AC or DC power from a communications port to other communications
252 equipment through communications wiring or cables
253 Note 1 to entry: It should be noted that ISO/IEC/IEEE 8802-3:2021 has a similar but different definition, however PoE
254 is not covered by this document.
255 3.1.3
256 powered device
257 PD
258 equipment supplied with AC or DC power by a PSE (3.1.2) into a communications port from
259 communications wiring or cables

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260 Note 1 to entry: It should be noted that ISO/IEC/IEEE 8802-3:2021 has a similar but different definition, however PoE
261 is not covered by this standard
262 Note 2 to entry: Some in-line devices may just function as a PSE (3.1.2) to inject power into the cable connecting
263 to PD (3.1.3) equipment.ISO/IEC/IEEE 8802-3:2021 identifies such devices as Midspan PSE (3.1.2), however PoE is
264 not covered by this document.
265 Note 3 to entry: Some PD (3.1.3) equipment may also have a PSE (3.1.2) output to pass on unused power to other
266 PD (3.1.3) equipment, such as repeaters and in-line amplifiers.
267 3.1.4
268 information and communication technology network
269 ICT network
270 metallically terminated transmission medium and its associated equipment and ICT wiring and
271 communication cables
272 Note 1 to entry: The cable or wiring consists of two or more conductors intended for communication and/or power
273 transfer between the various pieces of communications related equipment. The equipment may be located within the
274 same or separate structures, buildings or locations, excluding: the mains system for supply, transmission and
275 distribution of electrical power, if used as a communication transmission medium; a dedicated HBES/BACS network.
276 End customer terminal equipment and associated wiring and cabling that is operating at ES1 DC voltages, as defined
277 in IEC 62368-1:2018.
278 Note 2 to entry: This may include twisted pairs, and may include circuits, that are subjected to transients as indicated
279 by Table 13 of IEC 62368-1:2018 (assumed to be 1,5 kV).
280 Note 3 to entry: An ICT network may be: - publicly or privately owned; - subject to longitudinal (common mode) as well
281 as transverse (differential) voltages and currents induced from nearby power lines or electric traction lines.
282 Note 4 to entry: Examples of ICT networks addressed within this standard are:
283 ﹘ a telecommunication service provider or utility’s RFT T1/E1, HDSLx, or span/line-powering network that is
284 metallically isolated from the end customers terminal equipment (see Annex A);
285 ﹘a RFT public data network located in the service providers utility space;
286 ﹘a Long Range reverse powering network operating above 60 V DC;
287 ﹘a private RFT network with electrical interface characteristics similar to the above;
288 ﹘a cable television network located in the service providers utility space;
289 Note 5 to entry: For information about circuit voltages and signals, which may be present, see Annex B of
290 IEC 62949:2017. For RFT, see ITU-T K.50. For high voltage coax, see IEC 60728-11.
291 3.1.5
292 remote feeding telecommunication circuit
293 RFT circuit
294 equipment circuit, without a direct mains connection, or a limited current circuit or an ES1 PS2
295 and some ES2 PS2 circuits, intended to supply or receive DC power, at voltages, currents and
296 powers that do not exceed defined values under specified operational conditions when
297 connected to paired-conductor communications network on which overvoltages are possible
298 Note 1 to entry: A telecommunications signal is not required to be present on an RFT circuit (3.1.5), but the power
299 delivered must be used to provide a telecommunication service.
300 Note 2 to entry: Specified conditions include normal operating conditions and single fault conditions and may include
301 abnormal operating conditions and safeguard failure conditions.
302 Note 3 to entry: In the context of this standard, RFT circuits (3.1.5) can be regarded as ES3 a
...

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