IEC TR 62222:2021

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
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
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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
Full information
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