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

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. Although in this document the product is qualified for EN 60793-2-50 type B1.1 and B1.3 singlemode fibres it may also be suitable for fusion splice protection of multimode fibre with 125 μm diameter glass cladding and other singlemode fibres with 125 μm diameter glass cladding at other wavelengths.

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

1.1 Produktdefinition Diese Europäische Norm enthält die Anfangs- und Maßanforderungen zu Beginn der Lebensdauer sowie die optischen, mechanischen und umweltbezogenen Leistungsanforderungen, die ein Fusionsspleißschutz einer Einmodenfaser erfüllen muss, um als EN-Normprodukt eingestuft zu werden. Obwohl die nach diesem Dokument qualifizierten Produkte Einmodenfasern der Typen B1.1 und B1.3 nach EN 60793 2 50 sind, können sie auch für Fusionsspleißschutze von Mehrmodenfasern mit einem Glas-manteldurchmesser von 125 µm sowie für andere Einmodenfasern mit einem Glasmanteldurchmesser von 125 µm für andere Wellenlängen geeignet sein. 1.2 Übergreifende Betriebsfähigkeit Die installierten Fusionsspleißschutze passen in LWL-Spleißkassetten oder LWL-Spleißwannen. In der vor-liegenden Norm werden die folgenden physikalischen Schnittstellenmaße festgelegt: – Querschnitt mit Breite, Höhe oder Durchmesser (in mm); – Länge (in mm). 1.3 Erwartetes Betriebsverhalten Das Betriebsverhalten eines installierten Fusionsspleißschutzes ist nach dem vorliegenden Dokument nur mit Fasern sichergestellt, die nach den Festlegungen in Anhang A ausgewählt wurden. 1.4 Betriebsumgebung Die ausgewählten Prüfungen in Kombination mit den Prüfschärfen und -dauern sind repräsentativ für eine geschlossene Umgebung im Freien nach den Festlegungen für Kategorie U in IEC 61753 1. Damit gewähr-leistet ist, dass das Produkt in Muffen, Kästen oder Straßenschränken für die Kategorien C, A, G und S (nach den Festlegungen in EN 61753 1) angewendet werden kann, wurde die festgelegte untere Temperatur auf –40 °C erweitert und es wurden Anforderungen für eine zeitweilige Überflutung aufgenommen. 1.5 Zuverlässigkeit Die erwartete Betriebslebensdauer des Produktes in dieser Umgebung beträgt mindestens 20 Jahre, wobei die Einhaltung dieser Spezifikation die Zuverlässigkeit des Produktes nicht garantiert. Diese sollte mit einem anerkannten Zuverlässigkeitsbewertungsprogramm vorhergesagt werden. 1.6 Qualitätssicherung Die Einhaltung dieser Spezifikation garantiert nicht die Beständigkeit der Herstellung des Produktes. Diese sollte mit einem anerkannten Qualitätssicherungsprogramm aufrechterhalten werden.

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 La présente norme européenne contient les exigences de performances initiales, dimensionnelles en début de vie, optiques, mécaniques et environnementales, auxquelles il est nécessaire qu'un protecteur d’épissures 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 types B1.1 et B1.3 selon l'EN 60793-2-50, il peut également convenir 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 à d’autres longueurs d’ondes. 1.2 Interopérabilité Il est nécessaire que le protecteur d’épissures par fusion installé s’adapte à des cassettes d'épissures ou des plateaux d'épissures de fibres optiques. La présente norme européenne spécifie les dimensions d’interface physique suivantes: - profil transversal avec largeur, hauteur ou diamètre (en millimètres); - longueur (en millimètres). 1.3 Performance attendue Dans la présente norme européenne, la performance d’un protecteur d’épissures par fusion est donnée avec une sélection de fibres telle que spécifié à l’Annexe A. 1.4 Environnement de fonctionnement Les essais sélectionnés combinés avec leurs sévérités et leurs durées sont représentatifs d’un environnement extérieur protégé, défini comme catégorie U dans l'EN 61753-1. Afin de garantir que le produit peut être utilisé dans des enveloppes, des boîtes ou des armoires situées dans un environnement urbain pour les catégories C, A, G et S (tel que défini dans l'EN 61753-1), la température basse spécifiée est étendue à -40 °C, et des exigences relatives à une immersion temporaire ont été ajoutées. 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 qualité.

Delilniki za optična vlakna in kabelske spojnice za optične komunikacijske sisteme - Specifikacija izdelka - 3-3. del: Ščitniki spojev enorodnih 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. Čeprav je v tem dokumentu izdelek kvalificiran za enorodna vlakna po standardu EN 60793-2-50 kategorij B1.1 in B1.3, je lahko prav tako ustrezen za zaščito spojev večrodnih vlaken s steklenim plaščem debeline 125 μm in drugih enorodnih vlaken s steklenim plaščem debeline 125 μm pri drugih valovnih dolžinah.

General Information

• Status: Withdrawn
• Public Enquiry End Date: 07-Jul-2010
• Publication Date: 22-Dec-2011
• Withdrawal Date: 08-Oct-2020
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: MOC - Mobile Communications
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 09-Oct-2020
• Due Date: 01-Nov-2020
• Completion Date: 09-Oct-2020
• Ref Project: EN 50411-3-3:2011 - Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 3-3: Singlemode optical fibre fusion splice protectors

Relations

• Replaced By: 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
• Effective Date: 03-Dec-2019
• Revised: 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
• Effective Date: 13-Mar-2018

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50411-3-3:2012
01-februar-2012
'HOLOQLNL]DRSWLþQDYODNQDLQNDEHOVNHVSRMQLFH]DRSWLþQHNRPXQLNDFLMVNHVLVWHPH
6SHFLILNDFLMDL]GHONDGHOâþLWQLNLVSRMHYHQRURGQLKRSWLþQLKYODNHQ
Fibre organisers and closures 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 50411-3-3:2011
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN 50411-3-3:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50411-3-3:2012

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SIST EN 50411-3-3:2012

EUROPEAN STANDARD
EN 50411-3-3

NORME EUROPÉENNE
December 2011
EUROPÄISCHE NORM

ICS 33.180.20


English version


Fibre organisers and closures 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 LWL-Spleißkassetten und -Muffen für die
à être utilisés dans les systèmes de Anwendung in LWL-
communication par fibres optiques - Kommunikationssystemen -
Spécifications de produits - Produktnormen -
Partie 3-3: Protecteurs d’épissures par Teil 3-3: Fusionsspleißschutze für
fusion de fibres optiques unimodales Einmodenfasern






This European Standard was approved by CENELEC on 2011-11-14. 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50411-3-3:2011 E

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SIST EN 50411-3-3:2012
EN 50411-3-3:2011 - 2 -
Contents Page
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 . 6
3 Description . 7
3.1 Fusion splice protector . 7
3.1.1 General . 7
3.1.2 Heat shrinkable splice protector type . 8
3.1.3 Fold over or clam shell splice protector type . 8
3.2 Materials . 9
3.3 Dimensions . 9
3.4 Colour and marking . 9
4 Variants . 9
5 Dimensional requirements . 11
5.1 Heat shrinkable splice protector (S type) . 11
5.2 Fold over or clam shell splice protector (F type) . 13
6 Tests . 13
6.1 Introduction . 13
6.2 Test sample preparation . 13
6.3 Test and measurement methods . 13
6.4 Pass/fail criteria . 14
7 Test report . 14
8 Performance requirements . 14
8.1 Dimensional and marking requirements . 14
8.2 Installation requirement . 14
8.3 Optical performance requirements . 15
Annex A (normative) Fibre type . 20
Annex B (normative) Sample size and product sourcing requirements . 21
Annex C (normative) Test sample description and installation . 22
C.1 Test sample layout for single fibre fusion splice protector . 22
C.2 Preparation of single fibre test samples . 22
C.3 Test sample layout for ribbon fibre fusion splice protector. 24
C.4 Preparation of ribbon fibre test samples . 24
Annex D (informative) Silicone band heat shrink fusion splice protectors . 26

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SIST EN 50411-3-3:2012
- 3 - EN 50411-3-3:2011
Figures
Figure 1 — Heat shrinkable splice protector . 8
Figure 2 — Fold over or clam shell splice protector . 8
Figure 3 — Single fibre splice protector variant S1 as assembled . 11
Figure 4 — Ribbon fibre splice protectors variants S2, S3, S4, S5 as assembled . 11
Figure 5 — Single fibre splice protector variant S1 (fully recovered) . 12
Figure 6 — Ribbon fibre splice protectors variants S2, S3, S4, S5 (fully recovered) . 12
Figure 7 — Fold over or clam shell splice protector (as delivered) . 13
Figure 8 — Fold over or clam shell splice protector (installed) . 13
Figure C.1 — Test sample layout for single fibre fusion splice protector . 22
Figure C.2 — Test sample preparation - Step 1 . 22
Figure C.3 — Test sample preparation - Step 2 . 23
Figure C.4 — Test sample preparation - Step 3 . 23
Figure C.5 — Test sample layout for ribbon fibre fusion splice protector . 24
Figure C.6 — Test sample preparation for ribbon – Step 1 . 24
Figure C.7 — Test sample preparation for ribbon - Step 2. 25
Figure C.8 — Test sample preparation for ribbon - Step 3. 25
Figure D.1 — Heat shrink splice protector with silicone band . 26
Figure D.2 — Typical silicone band dimensions for recovered diameters 2,2 mm to 2,4 mm . 26

Tables
Table 1 — Optical fibre fusion splice protector, for category U – Variants . 9
Table 2 — Outline and maximum dimensions for heat shrinkable fusion splice protectors . 12
Table 3 — Dimensions fold over or clam shell splice protector . 13
Table 4 — Test details and requirements . 15
Table A.1 — Fibre type characteristics . 20
Table B.1 — Sample size per test . 21

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SIST EN 50411-3-3:2012
EN 50411-3-3:2011 - 4 -
Foreword
This document (EN 50411-3-3:2011) has been prepared by CLC/TC 86BXA "Fibre optic interconnect, passive
and connectorised components".
The following dates are 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) 2012-11-14

– latest date by which the national standards conflicting
(dow) 2014-11-14
with the EN have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.

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SIST EN 50411-3-3:2012
- 5 - EN 50411-3-3:2011
Fibre organisers and closures 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 61753-1:2007, Category U
Style: Fusion
Operating 1 260 nm to 1 625 nm Attenuation grades Maximum allowed change in
wavelength: attenuation ≤ ± 0,2 dB for 5 protected
fusion splices placed in series
Fibre category EN 60793-2-50 Return loss grades Not applicable
Type B 1.1 and B 1.3
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)
EN 61753-1:2007 Fibre optic interconnecting devices and passive components performance
standard – Part 1: General and guidance for performance standards
(IEC 61753-1:2007)
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
S1-12 Single fibre 1,25 1,25 15/20/25/30
WW
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 20/25/35/40/45/60
S1-26 Single fibre 2,6 2,6 35/40/45/60
F tF tyyppee
S1-32 Single fibre 3,2 3,2 45/60
S1-37 Single fibre 3,7 3,7 68
LL
HH
S2-37 Ribbon 4 3,7 3,5 40/45
S3-40 Ribbon 8 4,0 3,7 40/45
WW

S4-45 Ribbon 12 4,5 4,0 25/30/40/45

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SIST EN 50411-3-3:2012
EN 50411-3-3:2011 - 6 -
1 Scope
1.1 Product definition
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.
Although in this document the product is qualified for EN 60793-2-50 type B1.1 and B1.3 singlemode fibres it
may also be suitable for fusion splice protection of multimode fibre with 125 µm diameter glass cladding and
other singlemode fibres with 125 µm diameter glass cladding at other wavelengths.
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 European Standard, 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 U in EN 61753-1. To ensure that the product can be used in closures, boxes
or street cabinet for categories C, A, G and S (as defined EN 61753-1) the specified lower temperature is
extended to -40 °C and requirements for temporary flooding have 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 recognised 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 recognised quality assurance programme.
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.
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 (all parts), Fibre optic interconnecting devices and passive components — Basic test and
measurement procedures (IEC 61300 all parts)

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SIST EN 50411-3-3:2012
- 7 - EN 50411-3-3:2011
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 61753-1:2007, Fibre optic interconnecting devices and passive components performance standard –
Part 1: General and guidance for performance standards (IEC 61753-1:2007)
3 Description
3.1 Fusion splice protector
3.1.1 General
A singlemode 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 like hot melt adhesive
or mastic.

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SIST EN 50411-3-3:2012
EN 50411-3-3:2011 - 8 -
The products described in this standard are based on various protection types:
 heat shrinkable splice protector;
 fold over splice protector (also called clam shell splice protector).
3.1.2 Heat shrinkable splice protector type
Prior to the 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 by heating equipment.
The typical fusion splice protector is composed of three elements:
11
22
33

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
3.1.3 Fold over or clam shell splice protector type
The fused area of the optical fibre is centred and kept in place by the adhesive strips and then the splice
protector is fold over and closed by the use of a crimping tool. In general the following elements are available:
 rigid flat strip hinged in the centre;
 compressible material adhered to the flat strip.

Figure 2 — Fold over or clam shell splice protector

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SIST EN 50411-3-3:2012
- 9 - EN 50411-3-3:2011
3.2 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 materials of the fibres and the mechanical splice parts;
 the sealant or encapsulant material shall be free of dirt and air inclusions;
 all components of the splice shall be resistant to solvents and degreasing agents that are typically used to
clean and degrease fibres and cables (like alcohols, white spirit and cable cleaners);
 exposed metallic parts shall be resistant to the corrosive influences they may encounter during the lifetime
of the product;
 exposed polymer materials shall be resistant to mould growth.
3.3 Dimensions
Outline dimensions are specified in Clause 5. All other dimensions are left to the discretion of the
manufacturer.
3.4 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) manufacturers part number;
d) variant identification number.
4 Variants
Table 1 — Optical fibre fusion splice protector, for category U – 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

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SIST EN 50411-3-3:2012
EN 50411-3-3:2011 - 10 -

Table 1 — Optical fibre fusion splice protector, for category U – Variants (continued)

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

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

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SIST EN 50411-3-3:2012
- 11 - EN 50411-3-3:2011
Table 1 — Optical fibre fusion splice protector, for category U – Variants (continued)
Applies only to XX variants
1
Variant No. X and X Fibre types to be spliced
4 5
P Primary coated 125/250 µm S1, F1
S Secondary coated 125/900 µm S1
A Any single fibre types P or S S1
R Ribbon type S2, S3, S4

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

D
min D
min


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

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SIST EN 50411-3-3:2012
EN 50411-3-3:2011 - 12 -

L
FR
L
FR
H
FR
H
FR
W
FR
W
FR


Figure 5 — Single fibre splice protector
Figure 6 — Ribbon fibre splice protectors
variant S1 (fully recovered)
variants S2, S3, S4 (fully recovered)

Table 2 — Outline and maximum dimensions for heat shrinkable fusion splice protectors
Variant Dimension H Dimension L Dimension D
Dimension W
FR FR FR min
Description
XX -XX mm mm mm mm
1 2
S1-12 Single fibre 1,25 ± 0,05 1,25 ± 0,05 15/20/25/30 +2/-1 0,35 min.
S1-13 Single fibre 1,3 ± 0,15 1,3 ± 0,15 15/20/25/30 +2/-1 0,35 min.
Single fibre 1,6 ± 0,1 1,5 ± 0,1 15/20/25/30/40 +2/-1 0,35 min.
S1-16
S1-22 Single fibre 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 20/25/35/40/45/60 +2/-1 1,2 min.
Single fibre
S1-26 2,6 ± 0,2 2,6 ± 0,2 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
S2-37 3,7 ± 0,5 3,5 ± 0,5 40/45 +2/-1 2,0 min.
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.

Special attention shall be paid to the following points during the installation process:
 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;
 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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SIST EN 50411-3-3:2012
- 13 - EN 50411-3-3:2011
5.2 Fold over or clam shell splice protector (F type)

θ
DaemsDaems
LL
HH

WW

Figure 7 — Fold over or clam shell splice
protector (as delivered)
Figure 8 — Fold over or clam shell splice protector (installed)

Table 3 — Dimensions fold over or clam shell splice protector
Variant Dimension W Dimension H Dimension L θθ
Dimension θθ
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

6 Tests
6.1 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 specimen 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.
6.2 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.
6.3 Test and measurement methods
All tests and measurements have been selected from EN 61300 series.

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SIST EN 50411-3-3:2012
EN 50411-3-3:2011 - 14 -
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
...