SIST EN 50411-3-3:2020

SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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
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
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

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).
— 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.
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

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.
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)
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).
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;
– 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.
...