Hivatkozási szám

MSZ EN 50411-2:2009

Dokumentumazonosító

146981

Cím

Fénytávközlési rendszerekben használt szálrendezők és kötéslezárók. Termékelőírások. 2. rész: Általános előírások és útmutató a fényvezető kábelek kötésszerelvényeire, a védett minicsöves kötéslezárókra és a minicsőcsatlakozókra

Angol cím

Fibre organisers and closures to be used in optical fibre communication systems. Product specifications. Part 2: General and guidance for optical fibre cable joint closures, protected microduct closures, and microduct connectors

Alkalmazási terület

1.1 Rules and conventions This general and guidance document provides a framework for new product specification in the series EN 50411-2-X rules and conventions under which a closure interface is created, and provides a consistent structure: • headings; • format; • abbreviations; • definitions; • references; • descriptions; • document structure details; • tables; • diagrams; • dimensions; and • product variants. This general and guidance document provides general information that defines the closure options, including the following: • level of sealing, sealed or non-sealed; • closure configurations, shape and/or entry port orientation; • ‘fibre management system’ or ‘microduct’ connectors contained within the housing; • cable port entry configurations, number of ports; • cable sealing method, heat or non-heat activated. In order to comply with the specification, the following closure and/or FMS requirements must be defined: • sealing and optical functionality; • physical dimensioning, giving the maximum outer perimeters for all sizes; • geometrical form and or shape; • dimensioning. 1.2 Product definition A product specification shall contains the initial, start of life dimensional, optical, mechanical and environmental performance requirements of a fully installed closure in order for it to be categorised as an EN standard product. The product specification should provide external overall dimensioning of closures to fit in their external location, e.g. underground chambers, street furniture or aerial applications. A fibre splice closure product specification includes both the parameters of the closure housing, the fibre splicing management system. These systems are always supplied together with the closure as a matched set including other functional or ancillary parts of an optical node. An air blown fibre closure product specification includes only the parameters of the closure housing. Air blown fibre closures are normally supplied without a microduct connector, largely because of uncertainty over connector method, microduct sizes, quantity and type of connector used. This closure specification allows single mode fibre to be used, and covers all IEC or EN standards of optical fibre cables as listed in the normative references with their various fibre, capacities, types and designs. For convenience the term “cable” in this document may refer to different types of optical fibre cable designs, including ‘air blown fibre’, ‘protected microduct’, or ‘microduct’. 1.3 Operating environment All tests for closures combined with the severity and duration, and are representative of an outside plant for subterranean and/or aerial environments defined by: ETSI EN 300 019 series Class 8.1: underground locations (without earthquake requirement) EN 61753-1 Category S: subterranean environment Category A: aerial environment. 1.4 Reliability Whilst the anticipated service life expectancy of the closure in this environment is at least 20 years, compliance with this a product specification does not guarantee the reliability of the product. This should be predicted using a recognised reliability assessment programme. 1.5 Quality assurance Compliance with product specifications does not guarantee the manufacturing consistency of the product. This should be maintained using a recognised quality assurance programme. 1.6 Safety All closures to be supplied free of sharp edges or pointed projections that can harm the installation operator. Materials, which are likely to come into contact with personnel, shall be non-toxic and shall not be a potential health or environmental hazard. Túl hosszú scope

ICS

33.180.20 Fényvezető csatlakozók

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2009-03-01

Forrás

idt EN 50411-2:2008

Előd

Utód

Módosítás

Kiegészítő információk

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

kapható formátuma

Papír ,
PDF (letöltés) (a fájl mérete: 353664) ,

oldalszáma

31 oldal; P kategória

ára

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