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BS EN 50411-2-4:2021:2022 Edition

BS EN 50411-2-4:2021:2022 Edition

$189.07

Fibre management systems and protective housings to be used in optical fibre communication systems. Product specifications – Sealed dome fibre splice closures for category S & A

Published By Publication Date Number of Pages
BSI 2022 50
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1.1 Product definition This document contains the initial, start of life dimensional, optical, mechanical and environmental performance requirements of a fully installed splice closure in order for it to be categorized as a European Standard product. 1.2 Operating environment The tests selected combined with the severity and duration are representative of an outside plant for subterranean and/or aerial environments defined by: EN IEC 61753 1 category S: subterranean environment category A: aerial environment 1.3 Reliability Whilst the anticipated service life expectancy of the product in this environment is 20 years, compliance with this specification does not guarantee the reliability of the product. This is predicted using a recognized reliability assessment programme. 1.4 Quality assurance Compliance with this specification does not guarantee the manufacturing consistency of the product. This is maintained using a recognized quality assurance programme. 1.5 Allowed fibre and cable types This closure standard allows both single-mode and multi-mode fibre to be used and covers all IEC standard optical fibre cables with their various fibre capacities, types and designs. This includes, but is not limited to, optical fibre cable standards EN 60794 2 (indoor) and EN 60794 3 (outdoor). The optical performance tests are carried out on test samples with EN IEC 60793 2 50 single-mode fibre (see Annex A). The selected fibre type for the optical test samples depends on the design of the fibre management system.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 1 Scope
1.1 Product definition
1.2 Operating environment
1.3 Reliability
1.4 Quality assurance
1.5 Allowed fibre and cable types
2 Normative references
3 Terms and definitions
4 Description
4.1 Closure housing
4.2 Cable seals
4.3 Fibre management system
5 General requirements
5.1 Materials
5.2 Storage, transportation and packaging
5.3 Installation and intervention
5.4 Closure overpressure safety
5.5 Colour and marking
6 Variants
7 Dimensional requirements
7.1 Dimensions of closures for Multiple Element and Multiple Ribbon fibres
7.2 Dimensions of closures for Single Circuit, Single Element and Single Ribbon
8 Tests
8.1 Sample size
8.2 Test sample preparation
8.3 Test and measurement methods
8.4 Test sequence
8.5 Pass/fail criteria
9 Test report
10 Performance requirements
10.1 Dimensional and marking requirements
10.2 Sealing, optical and visual examination pass/fail criteria
10.3 Sealing performance requirements
10.4 Optical performance requirements
Annex A 1B(normative)Fibre for test sample details
A.1 Fibre type for test sample
Annex B (normative)Sample size and product sourcing requirements
Annex C (informative)Families of FMS covered in this standard
5 Annex D (informative)Dimensions of FMS for multiple element and multiple ribbon
Annex E (informative)Dimensions of S type FMS for Single Circuit, Single Element and Single Ribbon

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BS EN 50411-2-4:2021
$189.07