EN IEC 61300-3-46:2025
(Main)Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-46: Examinations and measurements - Bore diameter in rectangular ferrules
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-46: Examinations and measurements - Bore diameter in rectangular ferrules
IEC 61300-3-46:2025 provides a standard for the measurement of guide pin bore and fibre bore diameters for rectangular ferrules used in connectors specified in the IEC 61754 series. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of fibre bore measurement; b) addition of force gauge method; c) addition of Annex A on temperature dependence.
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und Messverfahren - Teil 3-46: Messung - Bohrungsdurchmesser in MT-Ferrulen
Dispositifs d'interconnexion et composants passifs fibroniques - Procédures fondamentales d'essais et de mesures - Partie 3-46 : Examens et mesures - Diamètre de l'alésage dans les férules rectangulaires
IEC 61300-3-46:2025 est de fournir une méthode normalisée en vue de mesurer les diamètres d’alésage des broches de guidage et d’alésage pour les fibres pour férules rectangulaires utilisées dans les connecteurs spécifiés dans la série IEC 61754. Cette deuxième édition annule et remplace la première édition parue en 2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) ajout d’un mesurage de l'alésage pour fibres; b) ajout de la méthode du dynamomètre de traction; c) ajout de l'Annexe A portant sur l’influence de la température.
Optični spojni elementi in pasivne komponente - Postopki osnovnega preskušanja in merjenja - 3-46. del: Preiskave in meritve - Premer izvrtine v pravokotnih tulkah (IEC 61300-3-46:2025)
Namen tega dela standarda IEC 61300 je določiti standardni postopek merjenja premerov izvrtin za vodilne zatiče in izvrtin za optična vlakna v pravokotnih tulkah, ki se uporabljajo v konektorjih, navedenih v skupini standardov IEC 61754.
General Information
Relations
Overview
EN IEC 61300-3-46:2025 is an essential international standard published by the European Committee for Electrotechnical Standardization (CLC). It focuses on fibre optic interconnecting devices and passive components, specifically establishing basic test and measurement procedures for examining and measuring bore diameters in rectangular ferrules.
This standard supersedes the 2011 edition, introducing significant technical updates including the addition of fibre bore measurement, a force gauge measurement method, and an annex addressing temperature dependence. Its purpose is to ensure precise measurement of guide pin bores and fibre bores in rectangular ferrules used in connectors compliant with the IEC 61754 series.
Key Topics
Scope and Purpose
EN IEC 61300-3-46:2025 standardizes the measurement of bore diameters for guide pins and fibres in rectangular ferrules, critical for proper alignment and insertion during fibre optic connector mating.Measurement Techniques
- Method A: Utilizes a pin gauge assembly attached to a mass element to measure bore diameter by gentle insertion and gravity force.
- Method B: Employs a force gauge to apply a controlled pull force, ensuring accurate bore diameter by measuring resistance during pin gauge extraction.
Pin Gauge Specifications
- Material: Tungsten carbide steel for durability and precision
- Cylindricity tolerance: ≤ 100.0 nm
- Surface roughness: ≤ 20.0 nm Ra
- Edge treatment: Sharp edges are broken to prevent damage to ferrule bores.
Testing Conditions
- Temperature range: 18 °C to 25 °C
- Humidity range: 40% to 50% relative humidity
- Force applied during measurements varies between guide pin and fibre bore measurements with tight tolerances.
Temperature Dependence
The standard includes Annex A, providing guidelines to convert bore diameter measurements taken at different temperatures, ensuring reliable and reproducible results across varying environmental conditions.Handling and Setup
Proper fixture support to maintain coaxial alignment of the pin gauge during testing is emphasized, alongside cleaning and preconditioning of components to avoid contamination affecting measurement accuracy.
Applications
Quality Control in Fibre Optic Manufacturing
This standard is pivotal for manufacturers of fibre optic connectors, ensuring that rectangular ferrule bores meet required dimensional tolerances for optimal fibre alignment.Connector Interface Compliance
Measurements conforming to EN IEC 61300-3-46:2025 support compliance with IEC 61754 series standards for fibre optic connector interfaces, helping maintain compatibility and interoperability.Research and Development
Engineers and designers use this standard to test and refine ferrule designs, improving connector performance and durability through precise bore diameter control.Field Testing and Maintenance
Technicians can apply the outlined force gauge and pin gauge methods for verification or troubleshooting of installed fibre optic connections, ensuring continued network reliability.
Related Standards
IEC 61300-1: Provides general guidance and basic test and measurement procedures for fibre optic interconnecting devices and passive components, forming the foundational framework for part 3-46.
IEC 61300-3-1: Covers visual examination procedures for fibre optic components, complementing dimensional inspections such as bore diameter measurements.
IEC 61754 Series: Defines fibre optic connector interface standards to which the ferrules tested under EN IEC 61300-3-46:2025 must conform.
Summary
EN IEC 61300-3-46:2025 is a critical standard for ensuring high-precision measurement of bore diameters in rectangular ferrules for fibre optic connectors. By defining standardized test conditions, measurement apparatus, and procedures, including novel force gauge methods and temperature compensation, it supports consistent quality and interoperability in fibre optic networks. This ISO/IEC harmonized standard is indispensable for manufacturers, quality assurance teams, and field technicians involved in fibre optic interconnecting devices and passive components.
Frequently Asked Questions
EN IEC 61300-3-46:2025 is a standard published by CLC. Its full title is "Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-46: Examinations and measurements - Bore diameter in rectangular ferrules". This standard covers: IEC 61300-3-46:2025 provides a standard for the measurement of guide pin bore and fibre bore diameters for rectangular ferrules used in connectors specified in the IEC 61754 series. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of fibre bore measurement; b) addition of force gauge method; c) addition of Annex A on temperature dependence.
IEC 61300-3-46:2025 provides a standard for the measurement of guide pin bore and fibre bore diameters for rectangular ferrules used in connectors specified in the IEC 61754 series. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of fibre bore measurement; b) addition of force gauge method; c) addition of Annex A on temperature dependence.
EN IEC 61300-3-46:2025 is classified under the following ICS (International Classification for Standards) categories: 33.180.20 - Fibre optic interconnecting devices. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 61300-3-46:2025 has the following relationships with other standards: It is inter standard links to EN 61300-3-46:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN IEC 61300-3-46:2025 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2025
Nadomešča:
SIST EN 61300-3-46:2011
Optični spojni elementi in pasivne komponente - Postopki osnovnega preskušanja
in merjenja - 3-46. del: Preiskave in meritve - Premer izvrtine v pravokotnih tulkah
(IEC 61300-3-46:2025)
Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-46: Examinations and measurements - Bore diameter
in rectangular ferrules (IEC 61300-3-46:2025)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und
Messverfahren - Teil 3-46: Messung - Bohrungsdurchmesser in MT-Ferrulen (IEC 61300
-3-46:2025)
Dispositifs d'interconnexion et composants passifs fibroniques - Procédures
fondamentales d'essais et de mesures - Partie 3-46: Examens et mesures - Diamètre de
l’alésage dans les férules rectangulaire (IEC 61300-3-46:2025)
Ta slovenski standard je istoveten z: EN IEC 61300-3-46:2025
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 IEC 61300-3-46
NORME EUROPÉENNE
EUROPÄISCHE NORM July 2025
ICS 33.180.20 Supersedes EN 61300-3-46:2011
English Version
Fibre optic interconnecting devices and passive components -
Basic test and measurement procedures - Part 3-46:
Examinations and measurements - Bore diameter in rectangular
ferrules
(IEC 61300-3-46:2025)
Dispositifs d'interconnexion et composants passifs Lichtwellenleiter - Verbindungselemente und passive
fibroniques - Procédures fondamentales d'essais et de Bauteile - Grundlegende Prüf- und Messverfahren - Teil 3-
mesures - Partie 3-46 : Examens et mesures - Diamètre de 46: Messung - Bohrungsdurchmesser in MT-Ferrulen
l'alésage dans les férules rectangulaires (IEC 61300-3-46:2025)
(IEC 61300-3-46:2025)
This European Standard was approved by CENELEC on 2025-06-20. 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,
Türkiye 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
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61300-3-46:2025 E
European foreword
The text of document 86B/5027/FDIS, future edition 2 of IEC 61300-3-46, prepared by SC 86B "Fibre
optic interconnecting devices and passive components" of IEC/TC 86 "Fibre optics" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61300-3-46:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-07-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-07-31
document have to be withdrawn
This document supersedes EN 61300-3-46:2011 and all of its amendments and corrigenda (if any).
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61300-3-46:2025 was approved by CENELEC as a
European Standard without any modification.
Annex ZA
(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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 61300-1 - Fibre optic interconnecting devices and EN IEC 61300-1 -
passive components - Basic test and
measurement procedures - Part 1: General
and guidance
IEC 61300-3-1 - Fibre optic interconnecting devices and EN 61300-3-1 -
passive components - Basic test and
measurement procedures - Part 3-1:
Examinations and measurements - Visual
examination
IEC 61754 series Fibre optic interconnecting devices and EN 61754 series
passive components - Fibre optic
connector interfaces - Part 1: General and
guidance
IEC 61300-3-46 ®
Edition 2.0 2025-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 3-46: Examinations and measurements – Bore diameter in rectangular
ferrules
Dispositifs d'interconnexion et composants passifs fibroniques – Procédures
fondamentales d'essais et de mesures –
Partie 3-46 : Examens et mesures – Diamètre de l'alésage dans les férules
rectangulaires
ICS 33.180.20 ISBN 978-2-8327-0432-5
IEC 61300-3-46:2025-05(en-fr)
– 2 – IEC 61300-3-46:2025 © IEC 2025
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General description . 5
4.1 General . 5
4.2 Pin gauge assembly . 6
4.3 Test conditions . 6
4.4 Apparatus . 6
5 Procedure . 6
5.1 General . 6
5.2 Method A with attached mass element . 7
5.3 Method B with force gauge . 8
6 Post test examination . 8
7 Details to be specified and reported . 8
Annex A (normative) Bore diameter conversion at different temperatures . 9
Figure 1 – Pin gauge inserted into the ferrule guide pin bore or fibre bore . 7
Figure 2 – Examples of pin gauge assembly with attached mass element for ferrule
guide pin bore and fibre bore measurement (method A) . 7
Figure 3 – Examples of pin gauge pulled by a force gauge for ferrule guide pin bore
and fibre bore measurement (method B) . 8
Table 1 – Pin gauge specifications . 6
Table 2 – Test conditions . 6
IEC 61300-3-46:2025 © IEC 2025 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – BASIC TEST AND MEASUREMENT PROCEDURES –
Part 3-46: Examinations and measurements –
Bore diameter in rectangular ferrules
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,
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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.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publicat
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