Selection of optical fibre cable specifications relative to mechanical, ingress, climatic or electromagnetic characteristics - Guidance

IEC TR 62362:2020 is available as IEC TR 62362:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC/TR 62362: 2020 which is a technical report, provides information on the specification of optical fibre cables with respect to the mechanical, ingress, climatic and chemical or electromagnetic characteristics (MICE) as classified in ISO/IEC 11801-1. In this classification system, each letter of the four initials of the acronym are subscripted with a value from one to three to indicate different severities. The current attributes and severities are found in Annex A. This second edition cancels and replaces the first edition published in 2010. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- replacement of references and information from ISO/IEC 24702 and ISO/IEC 11801 with ISO/IEC 11801-1;
- update of the MICE table;
- update of the current optical fibre designations of IEC 60793-2-10 and IEC 60793-2-50.

General Information

Status
Published
Publication Date
13-Sep-2020
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
14-Sep-2020
Ref Project

Buy Standard

Technical report
IEC TR 62362:2020 - Selection of optical fibre cable specifications relative to mechanical, ingress, climatic or electromagnetic characteristics - Guidance
English language
20 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

IEC TR 62362
Edition 2.0 2020-09
TECHNICAL
REPORT
Selection of optical fibre cable specifications relative to mechanical, ingress,
climatic or electromagnetic characteristics – Guidance
IEC TR 62362:2020-09 (en)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2020 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from

either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC

copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC

The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes

International Standards for all electrical, electronic and related technologies.
About IEC publications

The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the

latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org

The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,

variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English

committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.

and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary

details all new publications released. Available online and once 67 000 electrotechnical terminology entries in English and

a month by email. French extracted from the Terms and Definitions clause of IEC
publications issued since 2002. Some entries have been

IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and

If you wish to give us your feedback on this publication or need CISPR.
further assistance, please contact the Customer Service
Centre: sales@iec.ch.
---------------------- Page: 2 ----------------------
IEC TR 62362
Edition 2.0 2020-09
TECHNICAL
REPORT
Selection of optical fibre cable specifications relative to mechanical, ingress,
climatic or electromagnetic characteristics – Guidance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.10 ISBN 978-2-8322-8818-4

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC TR 62362:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms, definitions, and abbreviated terms ....................................................................... 6

3.1 Terms and definitions .............................................................................................. 6

3.2 Abbreviated terms ................................................................................................... 6

4 MICE attributes and severities ......................................................................................... 7

4.1 General ................................................................................................................... 7

4.2 Mechanical ............................................................................................................. 7

4.2.1 Shock/bump..................................................................................................... 7

4.2.2 Vibration .......................................................................................................... 7

4.2.3 Tensile force .................................................................................................... 7

4.2.4 Crush .............................................................................................................. 7

4.2.5 Impact ............................................................................................................. 7

4.2.6 Bending, flexing and torsion ............................................................................ 7

4.3 Ingress ................................................................................................................... 8

4.3.1 Basic consideration ......................................................................................... 8

4.3.2 Particulate ingress ........................................................................................... 8

4.3.3 Water immersion ............................................................................................. 8

4.4 Climatic .................................................................................................................. 8

4.4.1 General ........................................................................................................... 8

4.4.2 Ambient temperature ....................................................................................... 8

4.4.3 Rate of change of temperature ........................................................................ 8

4.4.4 Humidity .......................................................................................................... 8

4.4.5 Solar radiation ................................................................................................. 8

4.4.6 Liquid pollution ................................................................................................ 9

4.4.7 Gaseous pollution .......................................................................................... 10

4.5 Electromagnetic .................................................................................................... 11

Annex A (informative) Details of MICE classification ............................................................ 12

Annex B (informative) IEC optical fibre cable standards ....................................................... 15

Annex C (informative) Fibre specifications and tests ............................................................ 17

C.1 Specifications ....................................................................................................... 17

C.2 Measurements and tests ....................................................................................... 17

C.3 Technical reports .................................................................................................. 19

Bibliography .......................................................................................................................... 20

Table 1 – Resistance to solar radiation ................................................................................... 9

Table 2 – Liquid pollution ........................................................................................................ 9

Table 3 – Gaseous pollution resistance................................................................................. 10

Table 4 – Gaseous pollution resistance................................................................................. 10

Table A.1 – Details of MICE classification (mechanical) ........................................................ 12

Table A.2 – Details of MICE classification (ingress) .............................................................. 12

Table A.3 – Details of MICE classification (climatic and chemical) ........................................ 13

Table A.4 – Details of MICE classification (electromagnetic) ................................................. 14

---------------------- Page: 4 ----------------------
IEC TR 62362:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SELECTION OF OPTICAL FIBRE CABLE SPECIFICATIONS
RELATIVE TO MECHANICAL, INGRESS, CLIMATIC OR
ELECTROMAGNETIC CHARACTERISTICS – GUIDANCE
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 in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

The main task of IEC technical committees is to prepare International Standards. However, a

technical committee may propose the publication of a technical report when it has collected

data of a different kind from that which is normally published as an International Standard, for

example "state of the art".

IEC 62362 which is a Technical Report, has been prepared by subcommittee 86A: Fibres and

cables, of IEC technical committee 86: Fibre optics.

This second edition cancels and replaces the first edition published in 2010. It constitutes a

technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) replacement of references and information from ISO/IEC 24702 and ISO/IEC 11801 with

ISO/IEC 11801-1;
b) update of the MICE table;
---------------------- Page: 5 ----------------------
– 4 – IEC TR 62362:2020 © IEC 2020

c) update of the current optical fibre designations of IEC 60793-2-10 and IEC 60793-2-50.

The text of this technical report is based on the following documents:
Enquiry draft Report on voting
86A/1987/DTR 86A/2029/RVDTR

Full information on the voting for the approval of this technical report can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 6 ----------------------
IEC TR 62362:2020 © IEC 2020 – 5 –
INTRODUCTION

Optical fibre cable specification standards are defined in IEC 60794 (all parts), which are

listed in Annex B. They are organized in a hierarchy similar to the IECQ system. They differ

from the IECQ system in that they are all performance standards. Optical fibre cable

standards specify the attributes and tests on cables intended to verify adequate protection of

fibres against external influences during the cabling process, cable installation handling and

from environmental effects during storage and operation.. The attributes of the fibres within

the cable are defined by reference to optical fibre specification standards of the IEC 60793

series, which are listed in Annex C. A complete and up-to-date listing of standards in the

IEC 60793 and IEC 60794 series is available on the IEC website: http://www.iec.ch.

The different levels of hierarchy are: generic, sectional, family and product. The primary

distinction between these is the level of detail. Typically, more options or wider ranges are

present at the higher level. At a given level, the distinctions are with respect to application or

cable construction. Clause 2 of this document gives a more complete mapping. Parts of the

family specification include blank detail specifications for various attributes that do not have

normative requirements.

At the sectional specification level, the main categories are indoor cables, outdoor cables,

cables along overhead lines, microduct cabling and indoor/outdoor cables. Typically, the

outdoor cables have tougher tests than the indoor cables. At the product specification level,

there is a series of standards intended to support ISO/IEC 11801 (all parts) for premises

cabling, using both indoor and outdoor varieties.

It is not the intention of this document to reproduce the requirements of all relevant

specifications, but rather to discuss typical application situations and mention key options for

tests, while seeking to guarantee the performance of cables in operation.
---------------------- Page: 7 ----------------------
– 6 – IEC TR 62362:2020 © IEC 2020
SELECTION OF OPTICAL FIBRE CABLE SPECIFICATIONS
RELATIVE TO MECHANICAL, INGRESS, CLIMATIC OR
ELECTROMAGNETIC CHARACTERISTICS – GUIDANCE
1 Scope

The purpose of this document is to provide information on the specification of optical fibre

cables with respect to the mechanical, ingress, climatic and chemical or electromagnetic

characteristics (MICE) as classified in ISO/IEC 11801-1.

In this classification system, each letter of the four initials of the acronym are subscripted with

a value from one to three to indicate different severities. The current attributes and severities

are found in Annex A.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their

content constitutes requirements of this document. For dated references, only the edition

cited applies. For undated references, the latest edition of the referenced document (including

any amendments) applies.

IEC 60794-1-22, Optical fibre cables – Part 1-22: Generic specification – Basic optical cable

test procedures – Environmental test methods
IEC 60794-2 (all parts), Optical fibre cables – Part 2: Indoor cables
IEC 60794-3 (all parts), Optical fibre cables – Part 3: Outdoor cables

IEC 61753 (all parts), Fibre optic interconnecting devices and passive components –

Performance standard

ISO/IEC 11801 (all parts), Information technology – Generic cabling for customer premises

3 Terms, definitions, and abbreviated terms
3.1 Terms and definitions
No terms and definitions are listed in this document.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.2 Abbreviated terms
MICE mechanical, ingress, climatic and chemical, electromagnetic
---------------------- Page: 8 ----------------------
IEC TR 62362:2020 © IEC 2020 – 7 –
4 MICE attributes and severities
4.1 General
The MICE classification system has three levels of severity:

1) M I C E describes a typical environment such as that assumed in ISO/IEC 11801-2; (i.e.

1 1 1 1
office premises, etc.);
2) M I C E describes a light industrial environment;
2 2 2 2
3) M I C E describes a harsh industrial environment.
3 3 3 3
See Annex A for a more detailed description of the MICE severity levels.
4.2 Mechanical
4.2.1 Shock/bump

Shock and bump are not specified for optical fibre cables. They are inherently robust in this

respect.
4.2.2 Vibration

Vibration in the industrial premises (as opposed to wind induced vibration on aerially deployed

cables) is not specified for optical fibre cables. They are inherently robust in this respect.

4.2.3 Tensile force

For outdoor cables specified in IEC 60794-3 (all parts), manufacturers specify a rated tensile

force. The requirement is that the fibre shall not exceed a percentage of the proof test strain

(to be agreed between customer and supplier) when the cable is tested at the rated load.

For indoor cables, the different family specifications of IEC 60794-2 (all parts) have different

requirements on the tensile load ranging from 70 N to 400 N.
4.2.4 Crush

For optical fibre cables, the crushing force is applied in a plate to plate test.

For indoor cables, crush is specified at 500 N. For outdoor cables, different levels are

specified depending on whether the cable is armoured or not. For unarmoured cable, values

of between 750 N and 1 500 N are specified. For armoured cable, values between 1 100 N

and 2 200 N are specified.
4.2.5 Impact

For indoor cables, a value of 1 J and a hammer with a striking surface of 12,5 mm radius are

specified. For un-armoured outdoor cables, a value of 10 J and a hammer with a striking

surface of 300 mm radius are specified.
4.2.6 Bending, flexing and torsion
All the family specifications have requirements on these attributes.

For bending, there are multiple tests such as bending under tension, repeated bending and

simple bending. The bending diameter is typically 20 times the cable diameter.

For flexing, the bending diameter is typically 20 times the cable diameter, with 25 cycles

typically applied.
---------------------- Page: 9 ----------------------
– 8 – IEC TR 62362:2020 © IEC 2020

For torsion, the test length, load, and number of turns varies depending on the family

specification. For indoor cables, the length is 125 x cable diameter or 250 mm, loaded at 20 N

with 10 or 20 cycles (per detailed specification) applied.
4.3 Ingress
4.3.1 Basic consideration

Optical fibre cables come in a variety of constructions. Some examples are slotted core, loose

tube, tight buffered. The slotted core and loose tube can be filled or unfilled. These different

constructions have different ingress characteristics.
4.3.2 Particulate ingress

Particulate ingress is not specified for optical fibre cables. They are inherently robust in this

respect.
4.3.3 Water immersion

On cables for which water immersion is specified, the test is different from that found in Annex

A. The requirement is that a pressure equivalent to 1 m of water is applied at or near one end

of a short (< 3 m) cable. After 24 h, no water shall be found at the other end.
It is expected that cables passing this test would pass both I and I severities.
2 3
4.4 Climatic
4.4.1 General

Terminations such as cable closures are generally considered separately from the cables and

are covered by standards from the IEC 61753 series prepared by IEC SC 86B.
NOTE The values that appear in T
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.