EN 62134-1:2002

SLOVENSKI SIST EN 62134-1:2004

STANDARD
september 2004
Garnitura optičnih vlaken – 1. del: Splošne specifikacije (IEC 61134-1:2002)*
Fibre optic enclosures - Part 1: Generic specification (IEC 61134-1:2002)
ICS 33.180.20 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 62134-1
NORME EUROPÉENNE
EUROPÄISCHE NORM May 2002
ICS 33.180.99
English version
Fibre optic enclosures
Part 1: Generic specification
(IEC 62134-1:2002)
Enveloppes pour fibres optiques Lichtwellenleitergarnituren
Partie 1: Spécification générique Teil 1: Fachgrundspezifikation
(CEI 62134-1:2002) (IEC 62134-1:2002)
This European Standard was approved by CENELEC on 2002-05-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62134-1:2002 E
Foreword
The text of document 86B/1642/FDIS, future edition 1 of IEC 62134-1, prepared by SC 86B, Fibre
optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to
the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62134-1 on 2002-05-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2005-05-01
Annexes designated "normative" are part of the body of the standard.
In this standard, annex ZA is normative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62134-1:2002 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 62134-1:2002
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1)
IECQ 001001 - IEC Quality Assessment System for--
Electronic Components (IECQ) -
Basic Rules
IECQ 001002-2 1998 IEC Quality Assessment System for--
Electronic Components (IECQ) -
Rules of Procedure
Part 2: Documentation
IECQ 001002-3 1998 Part 3: Approval procedures - -
1)
IEC Guide 102 - Electronic components - Specification--
structures for quality assessment
(Qualification approval and capability
approval)
IEC 60027 Series Letter symbols to be used in electrical HD 245 Series
technology
1)
IEC 60050-731 - International Electrotechnical --
Vocabulary (IEV)
Chapter 731: Optical fibre
communication
1)
IEC 60410 - Sampling plans and procedures for--
inspection by attributes
IEC 60617 Series Graphical symbols for diagrams EN 60617 Series
1)
2)
IEC 60695-2-2 - Fire hazard testing EN 60695-2-2 1994
Part 2: Test methods -
Section 2: Needle-flame test
1)
IEC 60793-2 - Optical fibres --
Part 2: Product specifications

1)
Undated reference.
2)
Valid edition at date of issue.

Publication Year Title EN/HD Year
1)
IEC 60794-2 - Optical fibre cables --
Part 2: Product specifications
1) 2)
IEC 60825-1 - Safety of laser products EN 60825-1 1994
Part 1: Equipment classification, + corr. February 1995
requirements and user's guide + A11 1996
+ corr. July 1997
1) 2)
IEC 61073-1 - Mechanical splices and fusion splice EN 61073-1 2000
protectors for optical fibres and cables
Part 1: Generic specification
IEC 61300-2 Series Fibre optic interconnecting devices and EN 61300-2 Series
passive components - Basic test and
measurement procedures
Part 2: Tests
1) 2)
IEC 61300-2-16 - Part 2-16: Tests - Mould growth EN 61300-2-16 1997
1) 2)
IEC 61300-2-30 - Part 2-30: Tests - Solar radiation EN 61300-2-30 1997
1) 2)
IEC 61300-2-36 - Part 2-36: Tests - Flammability (fire EN 61300-2-36 1997
hazard)
IEC 61300-3 Series Part 3: Examinations and EN 61300-3 Series
measurements
1) 2)
IEC 61753-1-1 - Fibre optic interconnecting devices and EN 61753-1-1 2001
passive components performance
standard
Part 1-1: General and guidance -
Interconnecting devices (connectors)
1)
IEC/TR3 61930 - Fibre optic graphical symbology - -
1)
ISO 129 - Technical drawings - Dimensioning ---
General principles, definitions, methods
of execution and special indications
1)
ISO 286-1 - ISO system of limits and fits --
Part 1: Bases of tolerances, deviations
and fits
1)
ISO 370 - Toleranced dimensions - Conversion--
from inches into millimetres and vice
versa
1)
ISO 1101 - Technical drawings - Geometrical--
tolerancing - Tolerancing of form,
orientation, location and run-out -
Generalities, definitions, symbols,
indications on drawings
NORME CEI
INTERNATIONALE IEC
62134-1
INTERNATIONAL
Première édition
STANDARD
First edition
2002-03
Enveloppes pour fibres optiques –
Partie 1:
Spécification générique
Fibre optic enclosures –
Part 1:
Generic specification
 IEC 2002 Droits de reproduction réservés  Copyright - all rights reserved
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électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch  Web: www.iec.ch
CODE PRIX
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PRICE CODE
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International Electrotechnical Commission
Международная Электротехническая Комиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

62134-1 © IEC:2002 – 3 –
CONTENTS
FOREWORD.7
INTRODUCTION.9
1 General .11
1.1 Scope.11
1.2 Normative references .11
1.3 Definitions .15
2 Requirements .17
2.1 Classification.17
2.1.1 Type.19
2.1.2 Style.19
2.1.3 Variant.21
2.1.4 Arrangement.21
2.1.5 Normative reference extensions .21
2.1.6 Environmental category – Recommended service categories.23
2.1.7 Assessment level.25
2.2 Documentation .27
2.2.1 Specification system.27
2.2.2 Symbols .31
2.2.3 Drawings .31
2.2.4 Measurements.31
2.2.5 Tests .31
2.2.6 Instructions for use.33
2.3 Standardization system .33
2.3.1 Specification standards .33
2.3.2 Interface standards.33
2.3.3 Performance standards.35
2.3.4 Reliability standards .35
2.3.5 Interlinking.37
2.4 Design and construction .41
2.4.1 Materials .41
2.5 Workmanship .41
2.6 Quality.41
2.7 Performance.41
2.8 Identification and marking.41
2.8.1 Variant identification number .41
2.8.2 Component marking.43
2.8.3 Package marking.43
2.9 Storage conditions.43
2.10 Safety.43
3 Quality assessment procedures.45
3.1 Primary stage of manufacture.45
3.2 Structurally similar components.45

62134-1 © IEC:2002 – 5 –
3.3 Qualification approval procedures .45
3.3.1 Fixed sample procedure .47
3.3.2 Lot-by-lot and periodic procedures.47
3.3.3 Qualifying specimen .47
3.3.4 Sample size.47
3.3.5 Preparation of specimens .47
3.3.6 Qualification testing.49
3.3.7 Qualification failures.49
3.3.8 Maintenance of qualification approval.49
3.3.9 Qualification report .49
3.4 Quality conformance inspection.49
3.4.1 Lot-by-lot inspection .51
3.4.2 Periodic inspection .51
3.5 Certified records of released lots.53
3.6 Delayed deliveries.53
3.7 Delivery release before completion of group B tests .53
3.8 Alternative test methods .53
3.9 Unchecked parameters.55
Figure 1 – Standardization system .39
Figure 2 – Standards interlink matrix.39
Figure 3 – Quality assurance options .39
Table 1 – Multilevel IEC specification structure .29

62134-1 © IEC:2002 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
———————
FIBRE OPTIC ENCLOSURES –
Part 1: Generic specification
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62134-1 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/1642/FDIS 86B/1670/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
The committee has decided that the contents of this publication will remain unchanged
until 2005. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
62134-1 © IEC:2002 – 9 –
INTRODUCTION
IEC 62134, which is a generic specification, is divided into three parts.
Part 1, entitled “General”, contains pertinent explanatory and reference information.
Part 2, entitled “Requirements”, contains all of the requirements that are to be met by fibre
optic enclosures covered by this specification. The requirements for classification,
documentation, design and construction, quality, performance, identification and marking,
storage conditions, and safety are covered in this part.
Part 3, entitled “Quality assessment procedures”, contains all of the procedures that are to be
followed for proper quality assessment of products covered by this standard.

62134-1 © IEC:2002 – 11 –
FIBRE OPTIC ENCLOSURES –
Part 1: Generic specification
1 General
1.1 Scope
Enclosures comprise a broad component family that functions to protect, secure and store
passive fibre optic components (such as splices or connectors) or other non-interconnecting
devices (such as optical branching devices). They are installed at either indoor or outdoor
locations, and provide access to the optical path of one or more cabled optical fibres. They
also generally provide for the orderly management, routing, and storage of optical fibres (such
as splice organizers or connector mounting plates). Configuration definitions may specify
integrated functions, or permit grouped combinations of compatible independent sub-units.
Specific classification requirements vary, and may or may not include isolation from
environmental hazards (such as water ingress), structure codes (such as fire safety), or other
appropriate considerations.
Enclosures are not intended to provide the primary packaging or structure for uncabled optical
fibre splices (such as a rigid mechanical splice shell, or a fusion splice protection sleeve).
Specification for those devices is defined in IEC 61073-1.
It is also intended that enclosures specified under this standard are not sufficiently
characterized for continuous brine or deep-water submersion. Examples of this are oceanic or
lake-crossing applications. Cables, closures and installation methods suited to this use are
highly specialized and are not within the scope of this standard or supporting test procedures.
Due to the diverse variety of subordinate specifications possible under this generic
specification, the sectional specification level has been retained (see 2.2.1). This format will
aid definition clarity for individual component sub-families and requirements, and provide
relevant associated blank detail specifications.
This standard establishes uniform requirements for the following:
– fibre optic enclosure generic requirements;
– qualification approval and quality assessment procedures.
1.2 Normative references
The following referenced documents are indispensable for the application 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.
IECQ 001001, IEC Quality Assessment System for Electronic Components (IECQ) – Basic
Rules
62134-1 © IEC:2002 – 13 –
IECQ 001002-2:1998, IEC Quality Assessment System for Electronic Components (IECQ) –
Rules of Procedure – Part 2: Documentation
IECQ 001002-3:1998, IEC Quality Assessment System for Electronic Components (IECQ) –
Rules of Procedure – Part 3: Approval procedures
IEC Guide 102, Electronic components – Specification structures for quality assessment
(Qualification approval and capability approval)
IEC 60027 (all parts), Letter symbols to be used in electrical technology
IEC 60050(731), International Electrotechnical Vocabulary – Chapter 731: Optical fibre
communication
IEC 60410, Sampling plans and procedures for inspection by attributes
IEC 60617 (all parts), Graphical symbols for diagrams
IEC 60695-2-2, Fire hazard testing – Part 2: Test methods – Section 2: Needle-flame test
IEC 60793-2, Optical fibres – Part 2: Product specifications
IEC 60794-2, Optical fibre cables – Part 2: Product specifications
IEC 60825-1, Safety of laser products – Part 1: Equipment classification, requirements and
user’s guide
IEC 61073-1, Mechanical splices and fusion splice protectors for optical fibres and cables –
Part 1: Generic specification
IEC 61300-2 (all parts), Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures – Part 2: Tests
IEC 61300-2-16, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-16: Tests – Mould growth
IEC 61300-2-30, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-30: Tests – Solar radiation
IEC 61300-2-36, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-36: Tests – Flammability (fire hazard)
IEC 61300-3 (all parts), Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures – Part 3: Examinations and measurements
IEC 61753-1-1, Fibre optic interconnecting devices and passive components performance
standard – Part 1-1: General and guidance – Interconnecting devices (connectors)
IEC 61930, Fibre optic graphical symbology

62134-1 © IEC:2002 – 15 –
ISO 129, Technical drawings – Dimensioning – General principles, definitions, methods of
execution and special indications
ISO 286-1, ISO system of limits and fits – Part 1: Bases of tolerances, deviations and fits
ISO 370, Toleranced dimensions – Conversion from inches into millimetres and vice versa
ISO 1101, Technical drawings – Geometrical tolerancing – Tolerancing of form, orientation,
location and run-out – Generalities, definitions, symbols, indications on drawings
1.3 Definitions
For the purpose of this standard, the definitions given in IEC 60050(731) together with the
following definitions apply.
1.3.1
cable splice
permanent or separable joint between two or more optical fibre cables. It may consist of
optical fibre joints, organizers, enclosures, or other safety devices
1.3.2
fibre splice
permanent or separable joint between two or more optical fibres
1.3.3
optical fibre enclosure
housing or compartment of generally closed construction, utilized for the storage, distribution,
or protection of one or more cabled fibre joints. It frequently restores the mechanical,
environmental, strain relief, and moisture resistance, which are provided by cable jackets,
removed at outdoor cable splice locations
1.3.4
hybrid enclosure
enclosure that is used to protect cable joints comprised of both optical fibre and electrically
conductive media
1.3.5
enclosure hardware
any of the individual apparatus elements of an enclosure
1.3.6
pressurized enclosure
sealed enclosure that provides protection from water ingress by maintaining a continuous
positive internal gas pressure
1.3.7
non-pressurized enclosure
enclosure that provides protection from water ingress by permanently sealed construction.
It may optionally utilize filling compound that shall not directly contact uncabled optical fibres

62134-1 © IEC:2002 – 17 –
1.3.8
cabinet
container that may enclose connection devices, terminations, apparatus, cabling, and
equipment. It may be either wall-mounted or self-supporting
1.3.9
pedestal
secure outer enclosure that provides external mechanical and weather protection at a cable
splice or distribution location. It is typically installed above ground-level on a prepared site,
and provides entry for below-grade cables
1.3.10
pedestal enclosure
secondary interior enclosure that is installed inside a pedestal. It may provide environmental
isolation, and it may selectively restrict or provide simple access to individual cabled optical fibres
1.3.11
distribution frame/panel
structure with terminations for connecting the permanent cabling of a facility in a manner that
inter-connection or cross-connection may be readily made and rearranged to facilitate cabling
administration
1.3.12
splice organizer
structure that organizes and controls storage of fibre splices in an orderly manner, together
with the associated excess uncabled fibre lengths. It is defined as an enclosure, although it
provides mechanical protection only, and is intended for installation within another enclosure
1.3.13
telecommunications outlet
fixed connecting device where the horizontal cable terminates. The telecommunications outlet
provides the interface to the work area cabling
2 Requirements
The common requirements for fibre optic enclosures covered by this specification are
specified in this clause. Additional or more severe requirements may be imposed by a
relevant subsidiary specification.
2.1 Classification
Fibre optic enclosures shall be classified by the following categories. The evolution of fibre
optic technology and technical progress may alter or add terms.
–Type
–Style
– Variant
– Arrangement
– Normative reference extensions
– Climatic category
– Assessment level
62134-1 © IEC:2002 – 19 –
2.1.1 Type
Enclosure type identifies a general category that indicates the functionality or application
service use. It may also further identify an appropriate intended service location.
– Type name
Examples:
• Pressurized splice enclosure
• Non-pressurized splice enclosure
• Pedestal enclosure
• Distribution panel
• Splice organizer
• Telecommunications outlet
– Service location
Examples:
• Aerial (overhead cable strand mounting)
• Above ground (exterior building or earth surface placement)
• Buried (direct sub-surface earth placement)
• Underground (within accessible buried protective compartments, usually joined by
cable ducts)
• Inside building (protected habitable environments)
• Universal (no placement restrictions)
2.1.2 Style
Enclosure style further differentiates categories within a type and may indicate end use
suitability, specialized capabilities, or limitations. A sectional specification may further identify
characteristics to define the enclosure capabilities or specialized requirements. Style is not
intended to define material or design.
– Installation capability
Examples:
• Full service (all ports split to accept cut or uncut cable/fibre entry)
• New construction (ports accept cable/fibre ends only)
• System expansion (primary ports split, secondary port openings accept cable/fibre
ends only)
– Configuration
Examples:
• Inline (cables/fibres enter both ends)
• Butt (cables/fibres enter one end)
• Branch (primary cables/fibres one end, multiple secondary cables/fibres other end)
• Add/drop (majority of cabled fibres are uncut, coiled internally for storage)

62134-1 © IEC:2002 – 21 –
2.1.3 Variant
Variant categories define the functional attribute details necessary to specify the closure
capacities, as well as safety and serviceability requirements, where appropriate.
– Size capacity
Examples:
• Maximum fibre splice storage
• Perimeter envelope dimensions
• Minimum interior volume
– Entry port capacity
Examples:
• Number and size of primary entry ports
• Number and size of secondary entry ports
• Number and size of expansion options
– Access and reuse provisions
Examples:
• Unrestricted (entry and closing without new materials or rework)
• Undamaged (new sealing materials or accessory hardware required)
• Single use (destructive enclosure removal, undamaged cable/fibre joint)
• Permanent (no future access provisions)
– Metallic cable grounding/shielding
Examples:
• Ground fault surge protection
• Insulated continuity across cable joint
• EMI/RFI radiation
2.1.4 Arrangement
Arrangement defines the delivered form of the enclosure or sub-component accessory.
Examples:
• Kit (components supplied for field installation)
• Special use kit (requires specialized or use-restricted field installation tooling/fuels/
energy)
• Replacement seals or hardware
• Preassembled enclosure
• Preterminated enclosure (supplied with integral cabled fibre)
2.1.5 Normative reference extensions
Normative reference extensions may be used to selectively identify and merge independent
standards, specifications, or other reference documents into blank detail specifications or
detail specifications. When used, they consolidate requirements defining integrated and
hybrid components without duplication or contradiction. They may also be used to incorporate
technical expertise other than fibre optics.

62134-1 © IEC:2002 – 23 –
Published reference documents produced by IEC, ISO, or ITU that are consistent with the
scope statements of the relevant specification may be utilized. Published reference
documents produced by other regional or national standardization or regulating organizations
such as TIA, ETSI, JIS, etc. may be referenced by an informative annex to the blank detail
specification or the detail specification.
Some enclosure configurations or classifications require unique specification and qualification
provisions that are design-dependent and are not necessary to impose universally. This
accommodates individual designs, specialized field tooling, or unique application processes. It
also provides for complete specification, repeatable performance, and ensures adequate
safety. These extensions are mandatory whenever used to prepare, assemble, or install an
enclosure for field usage, or to prepare qualification test specimens. The relevant
specification shall identify all stipulations; however, design and style-dependent extensions
shall not be imposed universally.
Requirements imposed by a normative reference extension are mandatory unless specific
exemptions are defined. In the event of conflicting requirements, precedence shall be given,
as follows: generic over sectional over blank detail specification over detail specification.
Examples:
– Utilizing IEC 60695-2-2 or other references to establish flammability or smoke generation
limits for enclosures installed within buildings.
– Merging a splice organizer specification with an enclosure specification to define an
integrated configuration.
– Utilizing IEC 60793-2 and IEC 60794-2 to partially define an enclosure incorporating
preinstalled optical fibre cables.
– Some commercial and residential building applications may require direct reference to
specific safety codes and regulations, or incorporate other specific material flammability or
toxicology requirements for certain locations.
– Specialized field tooling may require normative reference extensions to implement specific
ocular safety, electrical shock, burn hazard avoidance requirements, or require isolation
procedures to prevent potential ignition of combustible gases.
2.1.6 Environmental category – Recommended service categories
Enclosures shall be classified by environmental category. This category defines, in a
generalized way, the climatic conditions of cold temperatures, hot temperatures, and
exposure to moisture or other environmental hazards for which an enclosure is suited. This
category is also related, in a generalized way, to the typical service locations (see 2.1.1) for
which the enclosure is intended.
Environmental category designations shall, whenever possible, be taken from IEC 61753-1-1
or other relevant performance standards, and utilize the following general operating service
environments and definitions:
62134-1 © IEC:2002 – 25 –
For enclosure component applications providing primary protection:
Category Operational Qualification Environment
temperature range temperature range
°C
°C
A –40 to +65 –40 to +70 Aerial (overhead, >3 m height)
G –25 to +60 –25 to +70 Ground level (base/wall <3 m height)
S –10 to +50 –25 to +60 Subterranean (buried, underground)
C  0 to +40 –10 to +60 Controlled (regulated)
For enclosure component applications utilizing external protection:
Category Operational Qualification Environment
temperature range temperature range
°C °C
E –40 to +75 –40 to +85 Extreme
U –25 to +60 –25 to +70 Unregulated
C  0 to +40 –10 to +60 Controlled (regulated)
2.1.7 Assessment level
Each detail specification shall specify one or more assessment levels, and each shall be
designated by a capital letter. The assessment level defines the relationship between groups
A and B inspection levels/acceptable quality levels (AQL) and groups C and D inspection
periods.
The following are preferred specification levels:
Assessment level A
– Group A inspection: inspection level II, AQL = 4 %
– Group B inspection: inspection level II, AQL = 4 %
– Group C inspection: 24-month periods
– Group D inspection: 48-month periods
Assessment level B
– Group A inspection: inspection level II, AQL = 1 %
– Group B inspection: inspection level II, AQL = 1 %
– Group C inspection: 18-month periods
– Group D inspection: 36-month periods
Assessment level C
– Group A inspection: inspection level II, AQL = 0,4 %
– Group B inspection: inspection level II, AQL = 0,4 %
– Group C inspection: 12-month periods
– Group D inspection: 24-month periods
When an assessment level other than one of the above is used, it shall be designated with the
capital letter X.
62134-1 © IEC:2002 – 27 –
2.2 Documentation
2.2.1 Specification system
This specification is a part of a multilevel IEC specification system. Subsidiary specifications
shall consist of sectional specifications, blank detail specifications and detail specifications.
This system is shown in table 1.
2.2.1.1 Sectional specification
Sectional specifications define component sub-families or types (see 2.1.1). Each sectional
specification shall be limited to one classification type with at least one identified service
location (see 2.1.1). However, one sectional specification may be the basis for multiple blank
detail specifications – each suited to an individual or combination of service locations.
Each sectional specification shall contain at least:
– a definition of a single enclosure type in at least one service location;
– an additional relevant specific terminology and symbology;
– a qualification or capability approval procedures;
– one or more blank detail specifications.
2.2.1.2 Blank detail specification
Blank detail specifications are not, by themselves, an independent specification level. They
are associated to the sectional specification.
Each blank detail specification shall be limited to one environmental category.
Each blank detail specification shall contain at least:
– the preferred format for stating the required information in the detail specification;
– the enclosure classification type and (optionally) style;
– one or more assessment levels;
– the minimum mandatory test schedules and referenced performance requirements;
– normative reference extensions mandatory to all relevant detail specifications.
2.2.1.3 Detail specifications
Detail specifications shall specify the following minimum information:
– type (see 2.1.1);
– style (see 2.1.2);
– variants (see 2.1.3);
– arrangement (see 2.1.4);
– normative reference extensions, if applicable (see 2.1.5);
– environmental category (see 2.1.6);
– assessment level (see 2.1.7);

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– essential drawings, dimensions and limits of tolerance required for all components and
installation tooling (see 2.2.3);
– qualification procedure method (see 3.3);
– part identification number for each variant (see 2.8.1);
– quality assessment test schedules (see 3.3);
– performance requirements (see 2.1.6).
Table 1 – Multilevel IEC specification structure
Specification level Examples of information to be included Applicable to
Assessment system rules
Inspection rules
Optical measuring methods
Environmental test methods
Sampling plans
Identification rule
Basic Two or more component families
Marking standards
Dimensional standards
Terminology standards
Symbol standards
Preferred number series
SI units
Specific terminology
Specific symbols
Specific units
Generic Component family
Preferred values
Classification definition and format
Marking
Quality assessment procedures
Additional terminology
Additional symbols
Classification for a specific component sub-family
grouping
Component sub-family
Sectional
Relevant normative reference extensions
Preferred values specific to the component sub-family
Qualification approval and/or capability approval
procedures
Quality conformation test schedule
Types and/or groups of styles and
Inspection requirements
Blank detail variants having a common
Information common to a number of types
classification or test schedule
Relevant normative reference extensions
Individual values
Specific information
Detail
Completed quality conformance test schedules Individual component(s)
Relevant normative reference extensions

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2.2.2 Symbols
Graphical and letter symbols shall, whenever possible, be taken from IEC 60027, IEC 60617,
and IEC 61930.
2.2.3 Drawings
The essential drawing and dimensional information given in detail specifications shall not
restrict details of construction, nor shall they be used as manufacturing drawings. Drawings
shall also provide supplementary information critical for enclosure installation (such as
minimum clearance to adjacent physical obstructions).
2.2.3.1 Projection system
Either first-angle or third-angle projection shall be used for document drawings covered by
this specification. All drawings within a document shall use the same projection system and
define which system is used.
2.2.3.2 Dimensional system
– All dimensions shall be given in accordance with ISO 129, ISO 286-1, and ISO 1101.
– The metric SI system of units shall be used in all specifications. Inch dimensions may be
added in detail specifications.
– Conversion between systems of units shall be in accordance with ISO 370. When units are
converted, a note shall be added in each detail specification.
– Dimensions shall not contain more than five significant digits.
2.2.3.3 Intermateability
All enclosure intermateability requirements shall be specified in the relevant detail specifi-
cation and shall utilize appropriate interface standards, whenever available.
2.2.4 Measurements
The examination and measurement methods for all optical and mechanical characteristics and
requirements shall be defined and preferentially selected from the relevant IEC 61300-3
series of standards. In the event suitable standards are not available, normative reference
extensions may be utilized (see 2.1.5).
2.2.4.1 Measurement method
The detail specification shall specify all size measurement methods to be used for dimensions
with a total tolerance zone less than 0,01 mm.
2.2.4.2 Gauges
Gauges, if required, shall be specified in the detail specification.
2.2.5 Tests
The test procedures for all optical, mechanical, climatic, and environmental characteristics
and performance requirements shall be defined and preferentially selected from the relevant
IEC 61300-2 series of standards. In the event suitable standards are not available, normative
reference extensions may be utilized (see 2.1.5).

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2.2.5.1 Test data reports
Test data reports shall be prepared for each test conducted by detail specification
requirements. The data reports shall be included in the qualification report (see 3.3.9) and in
the periodic inspection report (see 3.4.2.6).
Data reports shall contain the following information:
– title of test and date;
– specimen description, including all relevant variant identifications (see 2.1.3);
– test equipment used and date of latest calibration, if applicable;
– all applicable test details;
– all measurement values and relevant observations;
– sufficiently detailed documentation to provide traceable information for failure analysis
(see 3.3.7 and 3.4.2.5).
2.2.6 Instructions for use
Instructions for use shall be given by the manufacturer and shall consist of:
– installation and assembly instructions;
– disposal instructions for all consumable materials and waste;
– operational instructions, calibration schedule, and safety hazard restrictions for any
required installation tools, fuels, or power sources;
– information for recommended future handling (such as entry, modification, reinstallation)
– additional information, as necessary.
2.3 Standardization system
The standards and specification structure of IEC subcommittee 86B, Fibre optic inter-
connecting devices and passive components, is in the process of revision. The following
background information provides a brief summary of the content of each standard type and
the ways in which they are used together.
2.3.1 Specification standards
This specification is a part of the multi-level specification system described in 2.2.1.
Subsidiary specifications consist of sectional specifications, blank detail specifications and
detail specifications. This specification series establishes, for each relevant fibre optic
component or passive device component family, the means to define: 1) uniform requirements
for product classification and specification and 2) qualification approval and quality
assessment procedures.
2.3.2 Interface standards
Interface standards provide both manufacturers and users with all the information they require
to make or use products conforming to the physical features of that standard interface.
Interface standards fully define and dimension the features essential for the mating and
unmating of optical fibre connectors and other components. They also serve to position the
optical datum target, where defined, relative to other reference datums.

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Interface standards ensure that connectors and adapters that comply
...