SIST EN 50411-3-3:2020

Fibre management systems and protective housings to be used in optical fibre communication systems - Product specifications - Part 3-3: Singlemode optical fibre fusion splice protectors

This European Standard contains the initial, start of life dimensional, optical, mechanical and environmental performance requirements, which a singlemode fusion splice protector need to meet in order for it to be categorised as an EN standard product.

LWL-Spleißkassetten und -Muffen für die Anwendung in LWL-Kommunikationssystemen - Produktnormen - Teil 3-3: Fusionsspleißschutze für Einmodenfasern

Organiseurs et boîtiers de fibres destinés à être utilisés dans les systèmes de communication par fibres optiques - Spécifications de produits - Partie 3-3: Protecteurs d’épissures par fusion de fibres optiques unimodales

1.1 Définition du produit
Le présent document contient les exigences de performances initiales, dimensionnelles, optiques, mécaniques et environnementales, de début de vie, auxquelles il est nécessaire qu’un protecteur d’épissure par fusion de fibres unimodales satisfasse, afin d'être classé comme entrant dans une norme EN de produit.
Bien que, dans le présent document, le produit soit qualifié pour les fibres unimodales de type B-652.D selon l’EN IEC 60793 2 50, il convient également pour la protection d’épissures par fusion de fibres multimodales avec une gaine en verre de 125 µm de diamètre et d’autres fibres unimodales avec une gaine en verre de 125 µm de diamètre.
1.2 Interopérabilité
Il est nécessaire que le protecteur d’épissure par fusion installé s’adapte à des cassettes d'épissures ou des plateaux d'épissures de fibres optiques. Le présent document spécifie les dimensions d’interface physique suivantes:
– profil transversal avec largeur, hauteur ou diamètre (en millimètres);
– longueur (en millimètres).
1.3 Performance attendue
Dans le présent document, la performance d’un protecteur d’épissure par fusion est donnée avec une sélection de fibres telle que spécifiée à l’Annexe A.
1.4 Environnement de fonctionnement
Les essais choisis, combinés avec leurs sévérités et leurs durées, sont représentatifs d’un environnement extérieur protégé, défini comme catégorie OP dans l’EN IEC 61753 1. Les essais de « montage et démontage » et « à la poussière » ne sont pas inclus, car ils ne sont pas applicables une fois le produit installé. Afin de garantir que le produit peut être utilisé dans des boîtiers extérieurs, des boîtes ou des armoires d’environnement urbain pour les catégories A, G ou S (tel que défini dans l’EN IEC 61753 1), la température inférieure spécifiée est étendue à −40 °C et une exigence relative à une immersion dans l’eau pour des conditions d’immersion temporaire a été ajoutée.
1.5 Fiabilité
Tandis que l'espérance de vie du produit en service prévue dans cet environnement est d’au moins 20 ans, la conformité à la présente spécification ne garantit pas la fiabilité du produit. Il convient que celle-ci soit estimée en utilisant un programme reconnu d'évaluation de la fiabilité.
1.6 Assurance de la qualité
La conformité à la présente spécification ne garantit pas la cohérence de fabrication du produit. Il convient qu’elle soit maintenue en utilisant un programme reconnu d'assurance de la qualité.

Sistemi za upravljanje z optičnimi vlakni in zaščitna ohišja za optične komunikacijske sisteme - Specifikacije izdelka - 3-3. del: Ščitniki spojev enorodovnih optičnih vlaken

Ta evropski standard vsebuje začetne dimenzijske, optične, mehanske in okoljske zahteve, ki jih mora na začetku svoje življenjske dobe izpolnjevati enorodni ščitnik spojev, da se lahko kategorizira kot izdelek v skladu s standardom EN.

General Information

• Status: Published
• Public Enquiry End Date: 31-Dec-2018
• Publication Date: 11-Dec-2019
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-Dec-2019
• Due Date: 10-Feb-2020
• Completion Date: 12-Dec-2019
• Ref Project: EN 50411-3-3:2019 - Fibre management systems and protective housings to be used in optical fibre communication systems - Product specifications - Part 3-3: Singlemode optical fibre fusion splice protectors

Relations

• Revised: SIST EN 50411-3-3:2012 - Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 3-3: Singlemode optical fibre fusion splice protectors
• Effective Date: 13-Mar-2018
• Replaces: SIST EN 50411-3-3:2012 - Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 3-3: Singlemode optical fibre fusion splice protectors
• Effective Date: 03-Dec-2019

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50411-3-3:2020
01-februar-2020
Nadomešča:
SIST EN 50411-3-3:2012
Sistemi za upravljanje z optičnimi vlakni in zaščitna ohišja za optične
komunikacijske sisteme - Specifikacije izdelka - 3-3. del: Ščitniki spojev
enorodovnih optičnih vlaken
Fibre management systems and protective housings to be used in optical fibre
communication systems - Product specifications - Part 3-3: Singlemode optical fibre
fusion splice protectors
LWL-Spleißkassetten und -Muffen für die Anwendung in LWL-Kommunikationssystemen
- Produktnormen - Teil 3-3: Fusionsspleißschutze für Einmodenfasern
Organiseurs et boîtiers de fibres destinés à être utilisés dans les systèmes de
communication par fibres optiques - Spécifications de produits - Partie 3-3: Protecteurs
d’épissures par fusion de fibres optiques unimodales
Ta slovenski standard je istoveten z: EN 50411-3-3:2019
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
SIST EN 50411-3-3:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50411-3-3:2020

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SIST EN 50411-3-3:2020

EUROPEAN STANDARD EN 50411-3-3

NORME EUROPÉENNE

EUROPÄISCHE NORM
November 2019
ICS 33.180.20 Supersedes EN 50411-3-3:2011 and all of its
amendments and corrigenda (if any)
English Version
Fibre management systems and protective housings to be used
in optical fibre communication systems - Product specifications -
Part 3-3: Singlemode optical fibre fusion splice protectors
Organiseurs et boîtiers de fibres destinés à être utilisés LWL-Spleißkassetten und -Muffen für die Anwendung in
dans les systèmes de communication par fibres optiques - LWL-Kommunikationssystemen - Produktnormen - Teil 3-3:
Spécifications de produits - Partie 3-3: Protecteurs Fusionsspleißschutze für Einmodenfasern
d'épissures par fusion de fibres optiques unimodales
This European Standard was approved by CENELEC on 2019-09-30. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 50411-3-3:2019 E

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EN 50411-3-3:2019 (E)
Contents
Contents . 2
European foreword . 4
1 Scope . 6
1.1 Product definition . 6
1.2 Interoperability . 6
1.3 Expected performance . 6
1.4 Operating environment . 6
1.5 Reliability . 6
1.6 Quality assurance . 6
2 Normative references . 7
3 Terms and definitions . 8
4 Description . 8
4.1 Fusion splice protector . 8
4.1.1 General . 8
4.1.2 Heat shrinkable splice protector type . 8
4.1.3 Crimp, fold-over or clam shell splice protector type . 9
4.2 Materials. 10
4.3 Dimensions . 10
4.4 Colour and marking . 10
5 Variants . 11
6 Dimensional requirements . 13
6.1 Heat shrinkable splice protector (S type) . 13
6.2 Crimp, fold-over or clam shell splice protector (F type) . 14
7 Tests . 15
7.1 Introduction . 15
7.2 Test sample preparation . 15
7.3 Test and measurement methods . 15
7.4 Pass/fail criteria . 15
8 Test report . 15
9 Performance requirements . 16
9.1 Dimensional and marking requirements . 16
9.2 Installation requirement . 16
9.3 Optical performance requirements . 17
Annex A (normative) Fibre type for test sample . 22
Annex B (normative) Sample size and product sourcing requirements . 23
Annex C (normative) Test sample description and installation . 24
C.1 Test sample layout for single fibre fusion splice protector . 24
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C.2 Preparation of single fibre test samples . 25
C.3 Test sample layout for ribbon fibre fusion splice protector . 26
C.4 Preparation of ribbon fibre test samples. 26
Annex D (informative) Silicone band heat shrink fusion splice protectors . 28
Bibliography . 30


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SIST EN 50411-3-3:2020
EN 50411-3-3:2019 (E)
European foreword
This document (EN 50411-3-3:2019) has been prepared by CLC/TC 86BXA “Fibre optic interconnect, passive
and connectorised components”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2020-09-30
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards conflicting (dow) 2020-09-30
with this document have to be withdrawn

This document supersedes EN 50411-3-3:2011 and all of its amendments and corrigenda (if any).
EN 50411-3-3:2019 includes the following significant technical changes with respect to EN 50411-3-3:2011:
— terms and definitions are added;
— the EN 61753-1:2007 category U tests and test severities are replaced by the EN IEC 61753-1:2018
category OP test and test severities;
— a 23 mm length variant has been added to the variant XX3;
— the colour coding variant XX6 is harmonized with EN 60304;
— tolerance of height and width increased to ± 0,1 mm for variant S1-12 and ± 0,15 mm for S1-16
— requirement added of a transparent heatshrink splice protector to allow the visual centring of the fused
fibre area in the splice protector.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
4

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SIST EN 50411-3-3:2020
EN 50411-3-3:2019 (E)
Fibre management systems and protective housings to be used in optical fibre communication
systems - Product specifications
Part 3-3: Singlemode optical fibre fusion splice protectors
Description Performance
Type: Fibre splice protector Application: EN 61753-1, Category OP
Style: Fusion
Operating 1 260 nm to 1 625 nm Attenuation grades: Not applicable
wavelength:
Fibre category: EN 60793-2-50 Return loss grades: Not applicable

Related documents:
EN IEC 60793-2-50 Optical fibres – Part 2-50: Product specifications – Sectional specification for class B
single-mode fibres (IEC 60793-2-50)
EN 61300 series Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures (IEC 61300 series)
EN IEC 61753-1 Fibre optic interconnecting devices and passive components performance standard –
Part 1: General and guidance for performance standards (IEC 61753-1)
Outline and nominal dimensions:
Product as installed or fully recovered
W H L
S tS tyyppee
Type Fibre  Available lengths
LL
mm mm mm
HH
F1 Single fibre 1,2 3,2 30
WW S1-12 Single fibre 1,25 1,25 15/20/25/30
S1-13 Single fibre 1,3 1,3 15/20/25/30

S1-16 Single fibre 1,6 1,5 15/20/25/30/40

S1-22
Single fibre 2,2 2,2 25/30/35/40/45
S1-24 Single fibre 2,4 2,4 20/23/25/35/40/45/60
F tF tyypepe
S1-26
Single fibre 2,6 2,6 23/35/40/45/60
S1-32 Single fibre 3,2 3,2 45/60
S1-35
LL Single fibre 3,5 3,5 45/60
HH
S1-37 Single fibre 3,7 3,7 68
WW
S2-37
Ribbon 4 3,7 3,5 40/45

S3-40 Ribbon 8 4,0 3,7 40/45
S4-45 Ribbon 12 4,5 4,0 25/30/40/45

5

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EN 50411-3-3:2019 (E)

1 Scope
1.1 Product definition
This document contains the initial, start of life dimensional, optical, mechanical and environmental
performance requirements, which a single mode fusion splice protector need to meet in order for it to be
categorized as an EN standard product.
Although, in this document, the product is qualified for EN IEC 60793-2-50 type B-652.D single mode fibres it
is also suitable for fusion splice protection of multimode fibre with 125 µm diameter glass cladding and other
single mode fibres with 125 µm diameter glass cladding.
1.2 Interoperability
The installed fusion splice protector needs to fit into optical fibre splice cassettes or splice trays. This
document specifies the following physical interface dimensions:
– cross sectional profile with width, height or diameter (in millimetres);
– length (in millimetres).
1.3 Expected performance
In this document, the performance of the fusion splice protector is given with selected fibres as specified in
Annex A.
1.4 Operating environment
The tests selected combined with the severities and durations are representative of an outdoor enclosed
environment defined as category OP in EN IEC 61753-1. The “assembly and disassembly” and the “dust” tests
are not included since they are not relevant once the product is installed. To ensure that the product can be
used in outdoor closures, boxes or street cabinets for categories A, G or S (as defined in EN IEC 61753-1) the
specified lower temperature is extended to −40 °C and a water immersion requirement for temporary flooding
conditions has been added.
1.5 Reliability
Whilst the anticipated service life expectancy of the product in this environment is at least 20 years,
compliance with this specification does not guarantee the reliability of the product. This should be predicted
using a recognized reliability assessment programme.
1.6 Quality assurance
Compliance with this specification does not guarantee the manufacturing consistency of the product. This
should be maintained using a recognized quality assurance programme.
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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.
EN 60304, Standard colours for insulation for low-frequency cables and wires (IEC 60304)
EN IEC 60793-2-50, Optical fibres — Part 2-50: Product specifications — Sectional specification for class B
single-mode fibres (IEC 60793-2-50)
EN 61300-1, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 1: General and guidance (IEC 61300-1)
EN 61300-2-1, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-1: Tests - Vibration (sinusoidal) (IEC 61300-2-1)
EN IEC 61300-2-4, Fibre optic interconnecting devices and passive components — Basic test and
measurement procedures — Part 2-4: Tests — Fibre/cable retention (IEC 61300-2-4)
EN 61300-2-5, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-5: Tests – Torsion (IEC 61300-2-5)
EN 61300-2-7, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-7: Tests - Bending moment (IEC 61300-2-7)
EN 61300-2-9, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-9: Tests – Shock (IEC 61300-2-9)
EN 61300-2-17, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-17: Tests – Cold (IEC 61300-2-17)
EN 61300-2-18, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-18: Tests - Dry heat - High temperature endurance (IEC 61300-2-18)
EN 61300-2-22, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-22: Tests - Change of temperature (IEC 61300-2-22)
EN 61300-2-26, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-26: Tests - Salt mist (IEC 61300-2-26)
EN 61300-2-45, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-45: Tests - Durability test by water immersion (IEC 61300-2-45)
EN 61300-2-46, Fibre optic interconnecting devices and passive components — Basic test and measurement
procedures — Part 2-46: Tests — Damp heat cyclic (IEC 61300-2-46)
EN 61300-3-3, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 3-3: Examinations and measurements - Active monitoring of changes in attenuation and
return loss (IEC 61300-3-3)
EN 61300-3-28, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 3-28: Examinations and measurements - Transient loss (IEC 61300-3-28)
EN IEC 61753-1, Fibre optic interconnecting devices and passive components performance standard – Part 1:
General and guidance for performance standards (IEC 61753-1)
7

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EN 50411-3-3:2019 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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
3.1
live fibre
fibre optical circuit that is carrying an optical signal
[SOURCE: EN IEC 61756-1]
3.2
fibre splice
permanent or separable joint whose purpose is to couple optical power between two optical fibres, achieved by
either a fusion or a mechanical technique
[SOURCE: IEV 731-05-05 modified]
4 Description
4.1 Fusion splice protector
4.1.1 General
A single mode fibre fusion splice protector is a passive component, which provides mechanical and
environmental protection to a single fibre or ribbon fibre fusion splice. The fused fibres are protected against
ingress of dust or temporary flooding by a sealing material, generally a polymer material such as hot melt
adhesive or mastic.
The products described in this standard are based on various protection types:
– heat shrinkable splice protector;
– crimp or fold-over splice protector (also called clam shell splice protector).
4.1.2 Heat shrinkable splice protector type
Prior to splicing, the splice protector is put over one of the fibre or ribbon ends. After the fusion of the fibres,
the splice protector is placed over the spliced area. After visual centring over the fused area the splice
protector is shrunk using heating equipment.
A typical fusion splice protector is composed of three elements (see Figure 1).
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Key:
1 a reinforcement member to give rigidity after the protector is installed in the heater;
2 an adhesive tube that will encapsulate the spliced region and bonds directly to the bare glass and primary or
secondary coating of the fibres;
3 a cross-linked polyethylene heat-shrinkable tube, which encloses the adhesive insert tube and the reinforcement
member.
Figure 1 — Heat shrinkable splice protector
4.1.3 Crimp, fold-over or clam shell splice protector type
The fused area of the optical fibre is centred and kept in place by adhesive strips and then the splice protector
is folded over and closed by the use of a crimping tool. In general the following elements are present:
— a rigid flat strip hinged in the centre;
— a compressible material adhered to the flat strip.

Figure 2 — Crimp, fold-over or clam shell splice protector
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EN 50411-3-3:2019 (E)
4.2 Materials
Materials which are not specified or which are not specifically described are left to the discretion of the
manufacturer. However, the following requirements shall be met:
– all materials that are likely to come in contact with personnel shall meet appropriate health and safety
regulations;
– the sealing materials shall be compatible with the fibre materials and/or the mechanical splice parts;
– the sealant or encapsulant material shall be free of dirt and air inclusions;
– all splice components shall be resistant to solvents and degreasing agents that are typically used to clean
and degrease fibres and cables (e.g. alcohols, white spirit and cable cleaners);
– exposed metallic parts shall be resistant to any corrosive influences they may encounter during the
lifetime of the product;
– exposed polymer materials shall be resistant to mould growth.
4.3 Dimensions
Outline dimensions are specified in Clause 6. All other dimensions are left to the discretion of the
manufacturer.
4.4 Colour and marking
Marking of the product or packaging shall be in the following order of precedence:
a) identification of supplier or manufacturer;
b) manufacturing date code: year/week;
c) manufacturer’s part number;
d) variant identification number.
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5 Variants
Table 1 — Optical fibre fusion splice protector, for category OP – Variants
EN 50411-3-3– XX – XX – XX – X – X – XX
1 2 3 4 5 6
Variant No. XX Fusion splice protector type
1
Heatshrink single fibre
S1
S2 Heatshrink ribbon fibre (up to 4 fibres)
S3 Heatshrink ribbon fibre (up to 8 fibres)
Heatshrink ribbon fibre (up to 12 fibres)
S4
F1 Fold over type 1 (metal/mastic) single fibre

Nominal cross section after Applies only to XX variants
1
installation
Variant No. XX
2
(outer dimensions in mm)
NA 1,2 × 3,2 F1
12 Ø 1,25 S1
13 Ø 1,3 S1
16 Ø 1,6 S1
Ø 2,2 S1
22
24 Ø 2,4 S1
26 Ø 2,6 S1
S1
29 Ø 2,9
32 Ø 3,2 S1
35 Ø 3,5 S1
S1, S2
37 Ø 3,7
40 Ø 4,0 S3
45 Ø 4,5 S4
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EN 50411-3-3:2019 (E)

Nominal length
Variant No. XX Applies only to XX variants
3 1
(in mm)
15 15 S1
20 20 S1
S1
23 23
25 25 S1, S2, S3, S4
30 30 F1, S1
S1
35 35
40 40 S1, S2, S3, S4
45 45 S1, S2, S3, S4
60 60 S1
68 68 S1

Variant No. X and X Fibre types to be spliced Applies only to XX variants
4 5 1
Primary coated 125/200 µm and S1, F1
P
125/250 µm
S1
S Secondary coated 125/900 µm
A Any single fibre types P or S S1
Ribbon type S2, S3, S4
R

Variant No. XX Colour coding (EN 60304)
6
00 Clear for S1, S2, S3 and S4 or metal for F1
Red
01
02 Green
03 Blue
04 Yellow
05 White
Grey
06
07 Brown
08 Violet/Purple
Aqua/Turquoise
09
10 Black
11 Orange
Pink
12
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6 Dimensional requirements
6.1 Heat shrinkable splice protector (S type)


Figure 3 — Single fibre splice protector variant S1
Figure 4 — Ribbon fibre splice protectors
(as delivered)
variants S2, S3, S4 (as delivered)


Figure 5 — Single fibre splice protector variant S1

(fully recovered)
Figure 6 — Ribbon fibre splice protectors
variants S2, S3, S4 (fully recovered)

Special attention shall be paid to the following points:
— there shall be no longitudinal movement of the 3 elements (reinforcement member, adhesive tube and
heat-shrinkable tube) during transport or normal handling;
— it shall not be possible to insert a fibre between the adhesive tube and the heat shrinkable sleeve;
— splice protectors shall be transparent to allow visual centring of the fused fibre area within the splice
protector;
— splice protectors shall be installed with the recommended heating equipment;
— after full recovery, there shall be no air inclusions or dirt around the fibre inside the splice protector.
Limited air inclusions between the strength member and heatshrink sleeve are allowed.
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Table 2 — Outline and maximum dimensions for heat shrinkable fusion splice protectors
Minimum
Variant Dimension W Dimension H Dimension L
FR FR FR
dimension Dmin
Description
XX1-XX2 mm mm mm
mm
S1–12 Single fibre 15/20/25/30 +2/-1
1,25 ± 0,10 1,25 ± 0,10 0,35
S1–13 Single fibre 1,30 ± 0,15 1,30 ± 0,15 15/20/25/30 +2/-1 0,35
S1–16 Single fibre 1,60 ± 0,15 1,50 ± 0,15 15/20/25/30/40 +2/-1 0,35
S1–22 Single fibre 2,2 ± 0,2 2,2 ± 0,2 25/30/35/40/45 +2/-1 1,2.
S1–24 Single fibre 2,4 ± 0,2 2,4 ± 0,2 20/23/25/35/40/45/60 +2/-1 1,2
S1–26 Single fibre 2,6 ± 0,2 2,6 ± 0,2 23/35/40/45/60 +2/-1 1,2
S1–32 Single fibre 3,2 ± 0,3 3,2 ± 0,3 45/60 +2/-1 1,5
S1–35 Single fibre 3,5 ± 0,3 3,5 ± 0,3 45/60 +2/-1 1,5
S1–37 Single fibre 3,7 ± 0,3 3,7 ± 0,3 68 +2/-1 1,5
S2–37 Ribbon 4 fibre 3,7 ± 0,5 3,5 ± 0,5 40/45 +2/-1 2,0
S3–40 Ribbon 8 fibre 4,0 ± 0,5 3,7 ± 0,5 40/45 +2/-1 2,5
S4–45 Ribbon 12 fibre
4,5 ± 0,5 4,0 ± 0,5 25/30/40/45 +3/-1 3,4
6.2 Crimp, fold-over or clam shell splice protector (F type)

Figure 8 — Crimp, fold over or clam shell splice protector
(installed)

Figure 7 — Crimp, fold-over or clam

shell splice protector (as delivered)
The splice protectors shall be installed with the recommended installation tool.
Table 3 — Dimensions of the crimp, fold-over or clam shell splice protector
Variant Dimension W Dimension H Dimension L Dimension θ
Description
XX -XX
1 2 mm mm mm °
Fold over
F1-NA 1,2 ± 0,1 3,2 ± 0,1 30,0 ± 0,5 60 +0/-10
metal/mastic
14

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SIST EN 50411-3-3:2020
EN 50411-3-3:2019 (E)
7 Tests
7.1 Introduction
The mechanical and environmental performance of a fibre splice protector is vital to an optical cabling system.
The purpose of testing is to demonstrate that the installed splice protector remains functional under defined
environmental conditions, without failures.
Optical performance testing is accomplished by subjecting the test samples to a number of mechanical and
environmental conditions and by measuring any optical performance deviations at prescribed intervals during
and after completion of each test.
7.2 Test sample preparation
The test samples (see Annex C) are prepared by making 5 fusion splices on a randomly selected fibre or
ribbon. The optical test samples shall be installed according to the manufacturers’ installation instructions. The
fibres for the optical test samples are single mode fibres as described in Annex A. At least 2 m of fibre on each
side of the fusion splice protectors shall be used. For each fibre construction (primary, secondary coated or
ribbon) a number of test samples will be prepared as defined in Table B.1.
7.3 Test and measurement methods
All tests and measurements have been selected from EN 61300 series.
Unless otherwise stated in the individual test details, all attenuation measurements shall be performed at
1 310 nm ± 25 nm, 1 550 nm ± 25 nm and 1 625 nm ± 25 nm.
The change in attenuation values refer to the ± deviation from the original value of the transmitted power at the
start of the test.
No deviation from the specified test method is allowed.
Unless otherwise specified, tests shall be carried out under standard atmospheric conditions according to
EN 61300-1.
7.4 Pass/fail criteria
A product will have met the requirements of this standard provided no failures occur in any test.
In the event of a failure, the test shall be re-run using a sample size double that of the original.
Consecutive testing on the same optical test sample is allowed. In case of a failure during the consecutive
testing, a new sample shall be prepared and the failed test shall be redone.
8 Test report
Conformance to a performance standard shall be supported by a test report. The test report shall clearly
demonstrate that the tests described in Clause 9 have been carried out in accordance with this specification
and shall provide full details of the tests together with a pass/fail declaration. In the case of a failure, an
analysi
...

SLOVENSKI STANDARD
oSIST prEN 50411-3-3:2018
01-december-2018
6LVWHPLXSUDYOMDQMD]YODNQLLQ]DãþLWQDRKLãMD]DRSWLþQHNRPXQLNDFLMVNHVLVWHPH
6SHFLILNDFLMHL]GHONDGHOâþLWQLNLVSRMHYHQRURGQLKRSWLþQLKYODNHQ
Fibre management systems and protective housings to be used in optical fibre
communication systems - Product specifications - Part 3-3: Singlemode optical fibre
fusion splice protectors
LWL-Spleißkassetten und -Muffen für die Anwendung in LWL-Kommunikationssystemen
- Produktnormen - Teil 3-3: Fusionsspleißschutze für Einmodenfasern
Organiseurs et boîtiers de fibres destinés à être utilisés dans les systèmes de
communication par fibres optiques - Spécifications de produits - Partie 3-3: Protecteurs
d’épissures par fusion de fibres optiques unimodales
Ta slovenski standard je istoveten z: prEN 50411-3-3:2018
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
oSIST prEN 50411-3-3:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50411-3-3:2018

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oSIST prEN 50411-3-3:2018

EUROPEAN STANDARD DRAFT
prEN 50411-3-3
NORME EUROPÉENNE

EUROPÄISCHE NORM

October 2018
ICS 33.180.20 Will supersede EN 50411-3-3:2011
English Version
Fibre management systems and protective housings to be used
in optical fibre communication systems - Product specifications -
Part 3-3: Singlemode optical fibre fusion splice protectors
Organiseurs et boîtiers de fibres destinés à être utilisés LWL-Spleißkassetten und -Muffen für die Anwendung in
dans les systèmes de communication par fibres optiques - LWL-Kommunikationssystemen - Produktnormen - Teil 3-3:
Spécifications de produits - Partie 3-3: Protecteurs Fusionsspleißschutze für Einmodenfasern
d'épissures par fusion de fibres optiques unimodales
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2019-01-04.

It has been drawn up by CLC/TC 86BXA.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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 CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 66596 Ref. No. prEN 50411-3-3:2018 E

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prEN 50411-3-3:2018 (E)
Contents Page
European foreword . 4
1 Scope . 7
1.1 Product definition . 7
1.2 Interoperability . 7
1.3 Expected performance . 7
1.4 Operating environment. 7
1.5 Reliability . 7
1.6 Quality assurance . 7
2 Normative references . 7
3 Terms and definitions . 9
4 Description . 9
4.1 Fusion splice protector . 9
4.1.1 General . 9
4.1.2 Heat shrinkable splice protector type . 9
4.1.3 Crimp, fold-over or clam shell splice protector type . 10
4.2 Materials . 10
4.3 Dimensions . 11
4.4 Colour and marking . 11
5 Variants . 11
6 Dimensional requirements . 13
6.1 Heat shrinkable splice protector (S type) . 13
6.2 Crimp, fold-over or clam shell splice protector (F type) . 15
7 Tests . 15
7.1 Introduction . 15
7.2 Test sample preparation . 15
7.3 Test and measurement methods . 16
7.4 Pass/fail criteria . 16
8 Test report . 16
9 Performance requirements . 16
9.1 Dimensional and marking requirements . 16
9.2 Installation requirement . 16
9.3 Optical performance requirements . 17
Annex A (normative) Fibre type for test sample . 21
Annex B (normative) Sample size and product sourcing requirements . 22
Annex C (normative) Test sample description and installation . 23
C.1 Test sample layout for single fibre fusion splice protector . 23
C.2 Preparation of single fibre test samples . 24
C.3 Test sample layout for ribbon fibre fusion splice protector . 26
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C.4 Preparation of ribbon fibre test samples. 26
Annex D (informative) Silicone band heat shrink fusion splice protectors . 29
Bibliography . 31

3

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oSIST prEN 50411-3-3:2018
prEN 50411-3-3:2018 (E)
European foreword
This document (prEN 50411-3-3:2018) has been prepared by CLC/TC 86BXA “Fibre optic interconnect,
passive and connectorised components”.
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 12 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
This document will supersede EN 50411-3-3:2011.
prEN 50411-3-3:2018 includes the following significant technical changes with respect to EN 50411-3-3:2011:
— terms and definitions are added;
— the IEC 61753-1:2007 category U tests and test severities are replaced by the IEC 61753-1:2018 category
OP test and test severities;
— a 23 mm length variant has been added to the variant XX3;
— the colour coding variant XX6 is harmonized with EN 60304;
— tolerance of height and width increased to ± 0,1 mm for variant S1-12 and ± 0,15 mm for S1-16
— requirement added of a transparent heatshrink splice protector to allow the visual centring of the fused
fibre area in the splice protector.
4

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Fibre management systems and protective housings to be used in optical fibre communication
systems - Product specifications
Part 3–3: Singlemode optical fibre fusion splice protectors
Description Performance
Type: Fibre splice Application: EN IEC 61753-1:201X, Category OP
protector
Style: Fusion
Operating 1 260 nm to Attenuation Maximum allowed change in attenuation ≤ ± 0,2 dB for
wavelength: 1 625 nm grades: 5 protected fusion splices placed in series
Fibre EN 60793-2-50 Return loss Not applicable
category: grades:
Related documents:
EN 60793-2-50 Optical fibres – Part 2–50: Product specifications – Sectional specification for
class B single-mode fibres (IEC 60793-2-50)
EN 61300 series Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures (IEC 61300 series)
1)
EN IEC 61753-1:201X Fibre optic interconnecting devices and passive components performance standard
– Part 1: General and guidance for performance standards (IEC 61753-1:201X)

1)
To be published.
5

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6

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1 Scope
1.1 Product definition
This document contains the initial, start of life dimensional, optical, mechanical and environmental
performance requirements, which a single mode fusion splice protector need to meet in order for it to be
categorized as an EN standard product.
Although in this document the product is qualified for EN 60793-2-50 type B1.3 single mode fibres it is also
suitable for fusion splice protection of multimode fibre with 125 µm diameter glass cladding and other single
mode fibres with 125 µm diameter glass cladding.
1.2 Interoperability
The installed fusion splice protector needs to fit into optical fibre splice cassettes or splice trays. This European
Standard specifies the following physical interface dimensions:
— cross sectional profile with width, height or diameter (in millimetres);
— length (in millimetres).
1.3 Expected performance
In this document, the performance of the fusion splice protector is given with selected fibres as specified in
Annex A.
1.4 Operating environment
The tests selected combined with the severities and durations are representative of an outdoor enclosed
environment defined as category OP in EN IEC 61753-1:201X. The “assembly and disassembly” and the
“dust” tests are not included since they are not relevant once the product is installed. To ensure that the
product can be used in outdoor closures, boxes or street cabinets for categories A, G or S (as defined in
EN IEC 61753-1:201X) the specified lower temperature is extended to −40 °C and a water immersion
requirement for temporary flooding conditions has been added.
1.5 Reliability
Whilst the anticipated service life expectancy of the product in this environment is at least 20 years,
compliance with this specification does not guarantee the reliability of the product. This should be predicted
using a recognized reliability assessment programme.
1.6 Quality assurance
Compliance with this specification does not guarantee the manufacturing consistency of the product. This
should be maintained using a recognized quality assurance programme.
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.
EN 60304, Standard colours for insulation for low-frequency cables and wires (IEC 60304)
EN 60793-2-50, Optical fibres — Part 2-50: Product specifications — Sectional specification for class B single-
mode fibres (IEC 60793-2-50)
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EN 61300-1, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 1: General and guidance (IEC 61300-1)
EN 61300-2-1, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-1: Tests - Vibration (sinusoidal) (IEC 61300-2-1)
EN 61300-2-4, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-4: Tests - Fibre/cable retention (IEC 61300-2-4)
EN 61300-2-5, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-5: Tests - Torsion (IEC 61300-2-5)
EN 61300-2-7, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-7: Tests - Bending moment (IEC 61300-2-7)
EN 61300-2-9, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-9: Tests - Shock (IEC 61300-2-9)
EN 61300-2-17, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-17: Tests - Cold (IEC 61300-2-17)
EN 61300-2-18, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-18: Tests - Dry heat - High temperature endurance (IEC 61300-2-18)
EN 61300-2-22, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-22: Tests - Change of temperature (IEC 61300-2-22)
EN 61300-2-26, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-26: Tests - Salt mist (IEC 61300-2-26)
EN 61300-2-45, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-45: Tests - Durability test by water immersion (IEC 61300-2-45)
EN 61300-2-46, Fibre optic interconnecting devices and passive components — Basic test and measurement
procedures — Part 2-46: Tests — Damp heat cyclic (IEC 61300-2-46)
EN 61300-3-3, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 3-3: Examinations and measurements - Active monitoring of changes in attenuation and
return loss (IEC 61300-3-3)
EN 61300-3-28, Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 3-28: Examinations and measurements - Transient loss (IEC 61300-3-28)
EN IEC 61753-1:201X, Fibre optic interconnecting devices and passive components performance standard –
Part 1: General and guidance for performance standards (IEC 61753-1:201X)
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. 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
3.1
live fibre
fibre optical circuit that is carrying an optical signal
[SOURCE: EN 61756-1 Ed2]
3.2
fibre splice
permanent or separable joint whose purpose is to couple optical power between two optical fibres, achieved by
either a fusion or a mechanical technique
[SOURCE: IEV 731-05-05 modified]
4 Description
4.1 Fusion splice protector
4.1.1 General
A single mode fibre fusion splice protector is a passive component, which provides mechanical and
environmental protection to a single fibre or ribbon fibre fusion splice. The fused fibres are protected against
ingress of dust or temporary flooding by a sealing material, generally a polymer material such as hot melt
adhesive or mastic.
The products described in this standard are based on various protection types:
— heat shrinkable splice protector;
— crimp or fold-over splice protector (also called clam shell splice protector).
4.1.2 Heat shrinkable splice protector type
Prior to splicing, the splice protector is put over one of the fibre or ribbon ends. After the fusion of the fibres,
the splice protector is placed over the spliced area. After visual centring over the fused area the splice
protector is shrunk using heating equipment.
A typical fusion splice protector is composed of three elements (see Figure 1).
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Key
1 a reinforcement member to give rigidity after the protector is installed in the heater;
2 an adhesive tube that will encapsulate the spliced region and bonds directly to the bare glass and primary or
secondary coating of the fibres;
3 a cross-linked polyethylene heat-shrinkable tube, which encloses the adhesive insert tube and the reinforcement
member.
Figure 1 — Heat shrinkable splice protector
4.1.3 Crimp, fold-over or clam shell splice protector type
The fused area of the optical fibre is centred and kept in place by adhesive strips and then the splice protector
is folded over and closed by the use of a crimping tool. In general the following elements are present:
— a rigid flat strip hinged in the centre;
— a compressible material adhered to the flat strip.

Figure 2 — Crimp, fold-over or clam shell splice protector
4.2 Materials
Materials which are not specified or which are not specifically described are left to the discretion of the
manufacturer. However, the following requirements shall be met:
— all materials that are likely to come in contact with personnel shall meet appropriate health and safety
regulations;
— the sealing materials shall be compatible with the fibre materials and/or the mechanical splice parts;
— the sealant or encapsulant material shall be free of dirt and air inclusions;
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— all splice components shall be resistant to solvents and degreasing agents that are typically used to clean
and degrease fibres and cables (e.g. alcohols, white spirit and cable cleaners);
— exposed metallic parts shall be resistant to any corrosive influences they may encounter during the
lifetime of the product;
— exposed polymer materials shall be resistant to mould growth.
4.3 Dimensions
Outline dimensions are specified in Clause 6. All other dimensions are left to the discretion of the
manufacturer.
4.4 Colour and marking
Marking of the product or packaging shall be in the following order of precedence:
a) identification of supplier or manufacturer;
b) manufacturing date code: year/week;
c) manufacturer’s part number;
d) variant identification number.
5 Variants
Table 1 — Optical fibre fusion splice protector, for category OP – Variants
EN 50411-3-3– XX – XX – XX – X – X – XX
1 2 3 4 5 6
Variant No. XX Fusion splice protector type
1
S1 Heatshrink single fibre
Heatshrink ribbon fibre (up to 4 fibres)
S2
S3 Heatshrink ribbon fibre (up to 8 fibres)
S4 Heatshrink ribbon fibre (up to 12 fibres)
Fold over type 1 (metal/mastic) single fibre
F1
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Nominal cross section after Applies only to XX variants
1
installation
Variant No. XX
2
(outer dimensions)
NA 1,2 mm x 3,2 mm F1
12 Ø 1,25 mm S1
Ø 1,3 mm S1
13
16 Ø 1,6 mm S1
22 Ø 2,2 mm S1
S1
24 Ø 2,4 mm
26 Ø 2,6 mm S1
29 Ø 2,9 mm S1
S1
32 Ø 3,2 mm
35 Ø 3,5 mm S1
37 Ø 3,7 mm S1, S2
S3
40 Ø 4,0 mm
45 Ø 4,5 mm S4

Nominal length Applies only to XX variants
1
Variant No. XX
3
(in mm)
15 15 S1
S1
20 20
23 23 S1
25 25 S1, S2, S3, S4
F1, S1
30 30
35 35 S1
40 40 S1, S2, S3, S4
S1, S2, S3, S4
45 45
60 60 S1
68 68 S1

Applies only to XX variants
1
Variant No. X and X Fibre types to be spliced
4 5
Primary coated 125/200 µm and S1, F1
P
125/250 µm
S Secondary coated 125/900 µm S1
A Any single fibre types P or S S1
S2, S3, S4
R Ribbon type

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Variant No. XX Colour coding (EN 60304)
6
Clear for S1, S2, S3 and S4 or metal for F1
00
01 Red
02 Green
03 Blue
04 Yellow
White
05
06 Grey
07 Brown
Violet/Purple
08
09 Aqua/Turquoise
10 Black
Orange
11
12 Pink
6 Dimensional requirements
6.1 Heat shrinkable splice protector (S type)


Figure 3 — Single fibre splice protector variant S1 as Figure 4 — Ribbon fibre splice protectors
assembled variants S2, S3, S4 as assembled
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Figure 5 — Single fibre splice protector variant S1 Figure 6 — Ribbon fibre splice protectors
(fully recovered) variants S2, S3, S4 (fully recovered)
Special attention shall be paid to the following points:
— no longitudinal movement allowed of the 3 elements (reinforcement member, adhesive tube and heat-
shrinkable tube) during transport or normal handling;
— it shall not be possible to insert a fibre between the adhesive tube and the heat shrinkable sleeve;
— splice protectors shall be transparent to allow visual centring of the fused fibre area within the splice
protector;
— splice protectors shall be installed with the recommended heating equipment;
— after full recovery, there shall be no air inclusions or dirt around the fibre inside the splice protector.
Limited air inclusions between the strength member and heatshrink sleeve are allowed.
Table 2 — Outline and maximum dimensions for heat shrinkable fusion splice protectors
Variant Dimension H Dimension L Dimension D
Dimension WFR FR FR min
Description
XX -XX mm mm mm mm
1 2
Single fibre 15/20/25/30 +2/-1
S1–12 1,25 ± 0,10 1,25 ± 0,10 0,35 min.
S1–13 Single fibre 1,30 ± 0,15 1,30 ± 0,15 15/20/25/30 +2/-1 0,35 min.
S1–16 Single fibre 1,60 ± 0,15 1,50 ± 0,15 15/20/25/30/40 +2/-1 0,35 min.
Single fibre
S1–22 2,2 ± 0,2 2,2 ± 0,2 25/30/35/40/45 +2/-1 1,2 min.
S1–24 Single fibre 2,4 ± 0,2 2,4 ± 0,2 20/23/25/35/40/45/60 +2/-1 1,2 min.
S1–26 Single fibre 2,6 ± 0,2 2,6 ± 0,2 23/35/40/45/60 +2/-1 1,2 min.
S1–32 Single fibre 3,2 ± 0,3 3,2 ± 0,3 45/60 +2/-1 1,5 min.
S1–37 Single fibre 3,7 ± 0,3 3,7 ± 0,3 68 +2/-1 1,5 min.
Ribbon 4 fibre 3,7 ± 0,5 3,5 ± 0,5 40/45 +2/-1 2,0 min.
S2–37
S3–40 Ribbon 8 fibre 4,0 ± 0,5 3,7 ± 0,5 40/45 +2/-1 2,5 min.
S4–45 Ribbon 12 fibre 4,5 ± 0,5 4,0 ± 0,5 25/30/40/45 +3/-1 3,4 min.
14

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6.2 Crimp, fold-over or clam shell splice protector (F type)


Figure 7 — Crimp, fold-over or clam shell Figure 8 — Crimp, fold over or clam shell splice
splice protector (as delivered) protector (installed)
Special attention shall be paid to the following points:
— splice protectors shall be installed with the recommended installation tool.
Table 3 — Dimensions of the crimp, fold-over or clam shell splice protector
Variant
Dimension W Dimension H Dimension L Dimension θ
Description
XX -XX mm mm mm °
1 2
Fold over
F1-NA 1,2 ± 0,1 3,2 ± 0,1 30,0 ± 0,5 60 +0/-5
metal/mastic
7 Tests
7.1 Introduction
The mechanical and environmental performance of a fibre splice protector is vital to an optical cabling system.
The purpose of testing is to demonstrate that the installed splice protector remains functional under defined
environmental conditions, without failures.
Optical performance testing is accomplished by subjecting the test samples to a number of mechanical and
environmental conditions and by measuring any optical performance deviations at prescribed intervals during
and after completion of each test.
7.2 Test sample preparation
The test samples (see Annex C) are prepared by making 5 fusion splices on a randomly selected fibre or
ribbon. The optical test samples shall be installed according to the manufacturers’ installation instructions. The
fibres for the optical test samples are single mode fibres as described in Annex A. Allow at least 2 m of fibre on
each side of the fusion splice protectors. For each fibre construction (primary, secondary coated or ribbon) a
number of test samples will be prepared as defined in Table B.1.
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7.3 Test and measurement methods
All tests and measurements have been selected from EN 61300 series.
Unless otherwise stated in the individual test details, all attenuation measurements shall be performed at
1 310 nm ± 25 nm, 1 550 nm ± 25 nm and 1 625 nm ± 25 nm.
The change in attenuation values refer to the ± deviation from the original value of the transmitted power at the
start of the test.
No deviation from the specified test method is allowed.
Unless otherwise specified, tests shall be carried out under standard atmospheric conditions according to
EN 61300-1.
7.4 Pass/fail criteria
A product will have met the requirements of this standard provided no failures occur in any test.
In the event of a failure, the test shall be re-run using a sample size double that of the original.
Consecutive testing on the same optical test sample is allowed. In case of a failure during the consecutive
testing, a new sample shall be prepared and the failed test shall be redone.
8 Test report
Conformance to a performance standard shall be supported by a test report. The test report shall clearly
demonstrate that the tests described in Clause 9 have been carried out in accordance with this specification
and shall provide full details of the tests together with a pass/fail declaration. In the case of a failure, an
analysis of the cause of the failure shall be undertaken and any corrective actions take
...