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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lichtwellenleiter - Teil 1-54: Messmethoden und Prüfverfahren - Radioaktive Strahlung (IEC 60793-1-54:2018)Fibres optiques - Partie 1-54: Méthodes de mesure et procédures d'essai - Irradiation gamma (IEC 60793-1-54:2018)Optical fibres - Part 1-54: Measurement methods and test procedures - Gamma irradiation (IEC 60793-1-54:2018)33.180.10Fibres and cables17.240Merjenje sevanjaRadiation measurementsICS:Ta slovenski standard je istoveten z:EN IEC 60793-1-54:2018SIST EN IEC 60793-1-54:2018en01-maj-2018SIST EN IEC 60793-1-54:2018SLOVENSKI
STANDARDSIST EN 60793-1-54:20131DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN IEC 60793-1-54
March 2018 ICS 33.180.10
Supersedes
EN 60793-1-54:2013
English Version
Optical fibres - Part 1-54: Measurement methods and test procedures - Gamma irradiation (IEC 60793-1-54:2018)
Fibres optiques - Partie 1-54: Méthodes de mesure et procédures d'essai - Irradiation gamma (IEC 60793-1-54:2018)
Lichtwellenleiter - Teil 1-54: Messmethoden und Prüfverfahren - Gammastrahlung (IEC 60793-1-54:2018) This European Standard was approved by CENELEC on 2018-02-16. 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, 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. 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.
Ref. No. EN IEC 60793-1-54:2018 E SIST EN IEC 60793-1-54:2018
The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2018-11-16 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2021-02-16
This document supersedes EN 60793-1-54:2013.
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.
Endorsement notice The text of the International Standard IEC 60793-1-54:2018 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60793-2-10 NOTE Harmonized as EN 60793-2-10. IEC 60793-2-20 NOTE Harmonized as EN 60793-2-20. IEC 60793-2-50 NOTE Harmonized as EN 60793-2-50. SIST EN IEC 60793-1-54:2018
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1
Where an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
NOTE 2
Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu.
Publication Year Title EN/HD Year IEC 60793-1-40 -
Optical fibres -- Part 1-40: Measurement methods and test procedures - Attenuation EN 60793-1-40 -
IEC 60793-1-44 -
Optical fibres -- Part 1-44: Measurement methods and test procedures - Cut-off wavelength EN 60793-1-44 -
IEC 60793-1-46 -
Optical fibres -- Part 1-46: Measurement methods and test procedures - Monitoring of changes in optical transmittance EN 60793-1-46 -
IEC 61280-4-1 -
Fibre optic communication subsystem test procedures -- Part 4-1: Installed cable plant - Multimode attenuation measurement EN 61280-4-1 -
IEC 60793-1-54 Edition 3.0 2018-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibres –
Part 1-54: Measurement methods and test procedures – Gamma irradiation
Fibres optiques –
Partie 1-54: Méthodes de mesure et procédures d'essai – Irradiation gamma
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE
ICS 33.180.10
ISBN 978-2-8322-5209-3
– 2 – IEC 60793-1-54:2018 © IEC 2018 CONTENTS FOREWORD . 4 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Apparatus . 7 4.1 General . 7 4.2 Radiation source . 7 4.2.1 Testing of environmental background radiation . 7 4.2.2 Testing of adverse nuclear environments . 7 4.3 Optical source . 7 4.4 Optical filters/monochromators . 7 4.5 Cladding mode stripper . 7 4.6 Fibre support and positioning apparatus . 7 4.7 Optical splitter . 7 4.8 Input launch conditions . 7 4.8.1 Class A, Category A1 fibres (graded index multimode fibres) . 7 4.8.2 Class A, Category A2 fibres (quasi-step and step index fibres) . 8 4.8.3 Class B fibres (single-mode fibres) . 8 4.9 Detector – Signal detection electronics . 8 4.10 Optical power meter . 8 4.11 Radiation dosimeter . 8 4.12 Temperature-controlled container . 8 4.13 Test reel . 8 5 Sampling and specimens . 8 5.1 Specimens . 8 5.1.1 Fibre specimen . 8 5.1.2 Cable specimen . 8 5.2 Test sample length. 8 5.3 Test reel . 9 5.4 Ambient light shielding . 9 6 Procedure . 9 6.1 General . 9 6.2 Calibration of radiation source . 9 6.3 Preparation and pre-conditioning . 9 6.4 Attenuation measurement for environmental background radiation . 9 6.5 Attenuation measurement for adverse nuclear environment . 10 7 Calculations . 10 7.1 Change in optical attenuation ûa (environmental background radiation test) . 10 7.2 Change in optical transmittance, a (adverse nuclear environmental radiation test) . 10 7.3 Normalisation of the results . 11 8 Results . 11 8.1 Information to be provided with each measurement . 11 8.2 Information available upon request . 11 9 Specification information . 12 SIST EN IEC 60793-1-54:2018
IEC 60793-1-54:2018 © IEC 2018 – 3 –
Bibliography . 13
– 4 – IEC 60793-1-54:2018 © IEC 2018 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
OPTICAL FIBRES –
Part 1-54: Measurement methods and test procedures –
Gamma irradiation
FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the el
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