IEC TR 62222:2021
(Main)Fire performance of communication cables installed in buildings
Fire performance of communication cables installed in buildings
IEC TR 62222:2021 describes the test methods for various parameters relating to the reaction to fire properties of metallic and optical fibre communications cables. The parameters have particular importance for cables intended to be installed within buildings and other structures. This document also maps the test methods and associated limits applied to the fire hazards created by particular installation conditions and which can be referenced by other international, regional and national standards. For example, it is important that compliance with the requirements and recommendations for installation methods in ISO/IEC 14763-2 taking into consideration this document improve safety concerning fire.
This third edition cancels and replaces the second edition published in 2012. This edition includes the following significant technical changes with respect to the previous edition:
- Scope rewritten to clarify and bring into line current understanding from other technical sources;
- Normative References updated to be in line with the most recent technical definitions and new additions;
- new additional terms and definitions added to Annex F since these are not used in the document;
- new inclusions to the list of abbreviated terms, some corrections;
- project reports are now in Annex E, for information only;
- Subclause about mitigation of fire hazards, about fire protection, updated with clearer information on standards plus updates where new standards have been published or amended;
- test methods, test methods conclusions and fire performance updated.
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IEC TR 62222 ®
Edition 3.0 2021-01
TECHNICAL
REPORT
Fire performance of communication cables installed in buildings
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IEC TR 62222 ®
Edition 3.0 2021-01
TECHNICAL
REPORT
Fire performance of communication cables installed in buildings
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.220.40; 33.120.20 ISBN 978-2-8322-9240-2
– 2 – IEC TR 62222:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 16
4 Communications cabling in buildings . 16
4.1 Installations and associated fire danger . 16
4.2 Mitigation of fire hazards . 18
5 Fire hazard . 19
5.1 Fire hazard considerations . 19
5.2 Performance assessment . 21
6 Test methods . 23
6.1 Review . 23
6.2 NFPA 262 . 23
6.3 EN 50399 . 24
6.4 IEC 60332-3 (all parts) . 24
6.5 UL 1666 . 25
6.6 UL 1685 and CSA FT4 . 25
6.7 Other considerations . 26
6.8 Test method conclusions. 26
7 Fire performance . 27
7.1 Parameters . 27
7.2 Heat . 27
7.3 Effluent smoke . 28
7.4 Propagation . 29
7.5 Ignitability . 29
7.6 Damaging effects of fire effluents . 29
7.7 Flaming droplets . 29
7.8 Toxicity . 29
8 Legislation and regulation examples . 29
Annex A (informative) Typical communication cable installations . 32
Annex B (informative) Fire hazards/installations/applications/test methods for
communication cables in buildings . 33
Annex C (informative) Review of test methods . 34
Annex D (informative) Fire performance requirements . 40
Annex E (informative) Recent project for regulation – The FIPEC project . 41
Bibliography . 42
Figure A.1 – Typical installation locations . 32
Table 1 – Traditional ranking of fire hazards . 18
Table 2 – Cable fire performance test methods . 23
Table 3 – Severity . 23
Table 4 – Examples of materials for communication cables . 28
Table 5 – Heat requirements of EN 13501-6 . 28
Table 6 – Smoke requirements comparisons . 29
Table 7 – Class structure of EN 13501-6 . 30
Table B.1 – Fire hazards/installations/applications/test methods for communication
cables in buildings . 33
Table C.1 – Ignitability . 34
Table C.2 – Vertical tests . 35
Table C.3 – Horizontal tests for forced air systems . 38
Table C.4 – Indirect measurement of smoke . 39
Table D.1 – Fire performance requirements . 40
Table D.2 – Single cable burn test . 40
– 4 – IEC TR 62222:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIRE PERFORMANCE OF COMMUNICATION
CABLES INSTALLED IN BUILDINGS
FOREWORD
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IEC TR 62222 has been prepared by subcommittee 46C: Wires and symmetric cables, of IEC
technical committee 46: Cables, wires, waveguides, RF connectors, RF and microwave passive
components and accessories. It is a Technical Report.
This third edition cancels and replaces the second edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Scope rewritten to clarify and bring into line current understanding from other technical
sources;
b) Normative References updated to be in line with the most recent technical definitions and
new additions;
c) new additional terms and definitions added to Annex F since these are not used in the
document;
d) new inclusions to the list of abbreviated terms, some corrections;
e) project reports are now in Annex E, for information only;
f) Subclause 4.2 Mitigation of fire hazards, about fire protection, updated with clearer
information on standards plus updates where new standards have been published or
amended;
g) test methods, test methods conclusions and fire performance updated.
The text of this Technical Report is based on the following documents:
DTR Report on voting
46C/1151/DTR 46C/1156/RVDTR
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