EN IEC 61300-2-56:2020

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-56: Tests - Wind resistance of mounted housing

IEC 61300-2-56:2020 describes the test procedure to test the wind resistance of a protective housing and its mounting hardware using the fastening parts recommended by the manufacturer. The protective housing is considered to have a cuboid shape. The applied force in this test procedure simulates a steady wind load from each direction to a protective housing and its mounting hardware fixed to a support.

Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und Messverfahren - Teil 2-56: Prüfungen - Windfestigkeit von angebauten Gehäusen

Dispositifs d’interconnexion et composants passifs fibroniques - Procédures fondamentales d'essais et de mesures - Partie 2-56: Essais - Résistance au vent des boîtiers installés

IEC 61300-2-56:2020 décrit la procédure d'essai pour soumettre à des essais la résistance au vent d'un boîtier de protection et de son matériel d'installation utilisant les éléments de fixation recommandés par le fabricant. Le boîtier de protection est considéré comme étant de forme parallélépipédique. La force appliquée dans cette procédure d'essai simule une charge du vent régulière dans chaque direction appliquée à un boîtier de protection et son matériel d'installation fixés sur un support.

Optični spojni elementi in pasivne komponente - Osnovni preskusni in merilni postopki - 2-56. del: Preskusi - Vetrna odpornost pritrjenega ohišja (IEC 61300-2-56:2020)

General Information

• Status: Published
• Publication Date: 08-Oct-2020
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: CLC/TC 86BXA - Fibre optic interconnect, passive and connectorised components
• Drafting Committee: IEC/SC 86B - IEC_SC_86B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 09-Oct-2020
• Completion Date: 09-Oct-2020
• Ref Project: SIST EN IEC 61300-2-56:2020 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedure - Part 2-56: Tests - Wind resistance of mounted housing (IEC 61300-2-56:2020)

Overview

EN IEC 61300-2-56:2020 - "Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-56: Tests - Wind resistance of mounted housing" - defines a standardized test method to evaluate the wind resistance of protective housings and their mounting hardware used with fibre optic interconnection equipment. The procedure simulates a steady wind load applied from defined directions to a protective housing (assumed cuboid) fixed to a support, using the fastening parts recommended by the manufacturer.

Key topics and requirements

• Scope and purpose
  • Test the ability of housings and mounting hardware (pole-mounted and ground-mounted) to withstand steady wind loads without damage or unacceptable movement.
• Loading directions
  • Horizontal testing in two orientations: frontal and lateral.
  • Optional vertical load testing for pole-mounted housings.
• Apparatus and instruments
  • Use of a force generator, force gauge, holding fixture, force applying device, and timer to apply and record loads reproducibly.
• Test procedure steps
  • Pre-conditioning, initial visual examination, mounting the device under test (DUT), controlled conditioning (application of load), recovery, and final examination.
• Severity and repeatability
  • Recommended severity levels and procedural details are provided for pole- and ground-mounted configurations.
  • Annexes include calculation methods to convert wind speed and drag factors into applied forces.
• Assumptions and setup
  • The housing is modeled as a cuboid. Tests are carried out using the manufacturer’s recommended fastening parts and mounting arrangements.

Practical applications and who uses this standard

• Manufacturers of outdoor fibre-optic protective housings use EN IEC 61300-2-56:2020 for product design validation and to demonstrate mechanical robustness under wind loads.
• Test laboratories and quality assurance teams apply the procedure to verify compliance and to perform type or routine testing.
• Systems integrators and installers consult the standard to assess mounting hardware and installation suitability for site-specific wind exposure.
• Procurement and specification writers reference the standard when defining requirements for outdoor telecom enclosures, cabinets, and splice boxes.
• Regulatory and certification bodies may use the test as part of conformity assessment or performance claims.

Related standards

• EN/IEC 61300-1 - General and guidance for basic test and measurement procedures.
• EN/IEC 61300-3-1 - Visual examination procedures.
• IEC 61753 series (referenced in annex) - environmental and mechanical performance specifications.

Keywords: EN IEC 61300-2-56:2020, wind resistance of mounted housing, fibre optic interconnecting devices, protective housing test, wind load testing, pole-mounted housing, ground-mounted housing, mounting hardware.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2020
Optični spojni elementi in pasivne komponente - Osnovni preskusni in merilni
postopki - 2-56. del: Preskusi - Vetrna odpornost pritrjenega ohišja (IEC 61300-2-
56:2020)
Fibre optic interconnecting devices and passive components - Basic test and
measurement procedure - Part 2-56: Tests - Wind resistance of mounted housing (IEC
61300-2-56:2020)
Lichtwellenleiter - Verbindungselemente und passive Bauteile – Grundlegende Prüf- und
Messverfahren – Teil 2-56: Prüfungen - Windfestigkeit von angebauten Gehäusen (IEC
61300-2-56:2020)
Dispositifs d’interconnexion et composants passifs fibroniques - Procédures
fondamentales d'essais et de mesures - Partie 2-56: Essais - Résistance au vent des
boîtiers installés (IEC 61300-2-56:2020)
Ta slovenski standard je istoveten z: EN IEC 61300-2-56:2020
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 61300-2-56

NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2020
ICS 33.180.20
English Version
Fibre optic interconnecting devices and passive components -
Basic test and measurement procedures - Part 2-56: Tests -
Wind resistance of mounted housing
(IEC 61300-2-56:2020)
Dispositifs d'interconnexion et composants passifs Lichtwellenleiter - Verbindungselemente und passive
fibroniques - Procédures fondamentales d'essais et de Bauteile - Grundlegende Prüf- und Messverfahren - Teil 2-
mesures - Partie 2-56: Essais - Résistance au vent des 56: Prüfungen - Windfestigkeit von angebauten Gehäusen
boîtiers installés (IEC 61300-2-56:2020)
(IEC 61300-2-56:2020)
This European Standard was approved by CENELEC on 2020-09-22. 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61300-2-56:2020 E

European foreword
The text of document 86B/4300/FDIS, future edition 1 of IEC 61300-2-56, 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 61300-2-56:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-06-22
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-09-22
document have to be withdrawn
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 61300-2-56:2020 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 61753-1 NOTE Harmonized as EN IEC 61753-1

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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61300-1 - Fibre optic interconnecting devices and EN 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 61300-2-56 ®
Edition 1.0 2020-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures –
Part 2-56: Tests – Wind resistance of mounted housing

Dispositifs d’interconnexion et composants passifs fibroniques – Procédures

fondamentales d'essais et de mesures –

Partie 2-56: Essais – Résistance au vent des boîtiers installés

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-8731-6

– 2 – IEC 61300-2-56:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General description . 7
5 Apparatus . 8
5.1 Loading method . 8
5.1.1 General . 8
5.1.2 Method for pole-mounted housing . 8
5.1.3 Method for ground-mounted housing . 11
5.2 Force generator . 11
5.3 Force gauge . 12
5.4 Holding fixture . 12
5.5 Force applying device . 12
5.6 Timer . 12
6 Procedure . 12
6.1 General . 12
6.2 Pre-conditioning . 12
6.3 Initial examination . 12
6.4 Mounting DUT . 12
6.5 Conditioning . 13
6.6 Recovery . 13
6.7 Final examination . 13
7 Severity . 13
8 Details to be specified . 14
Annex A (normative) Testing pole-mounted protective housings with vertical load
application . 15
A.1 General . 15
A.2 Method for pole-mounted housing with vertical load application . 15
A.3 Severities . 16
Annex B (informative) Calculation of force resulting from wind load . 17
B.1 Formula of force resulting from wind load . 17
B.2 Example of force calculation . 17
B.3 Calculation of factor for frontal load application of pole-mounted housing . 18
B.4 Calculation of factor for lateral load application of pole-mounted housing . 19
B.5 Calculation of factor for vertical load application of pole-mounted housing . 20
B.6 Calculation of factor for frontal load application of ground-mounted housing . 20
B.7 Calculation of factor for lateral load application of ground-mounted housing . 20
Bibliography . 21

Figure 1 – Dimensions of pole-mounted and ground-mounted housing . 8
Figure 2 – Side view of frontal load application . 9
Figure 3 – Front view of frontal load application . 9
Figure 4 – Side view of lateral load application . 10

IEC 61300-2-56:2020 © IEC 2020 – 3 –
Figure 5 – Front view of lateral load application . 10
Figure 6 – Isometric view of frontal load application . 11
Figure 7 – Isometric view of lateral load application . 11
Figure A.1 – Side view of vertical load application . 15
Figure A.2 – Front view of vertical load application . 16
Figure B.1 – Worst-case situation for frontal load application . 18
Figure B.2 – Model with wind load on one side only . 18
Figure B.3 – Model for calculation of F from F . 19
T R
Table 1 – Recommended severity values for pole-mounted housing . 13
Table 2 – Recommended severity values for ground-mounted housing . 14
Table A.1 – Recommended severity value for pole-mounted housing and vertical load
application . 16
Table B.1 – Examples of drag coefficients . 17

– 4 – IEC 61300-2-56:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 2-56: Tests – Wind resistance of mounted housing

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
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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 elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61300-2-56 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86B/4300/FDIS 86B/4325/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61300 series, published under the general title Fibre optic
interconnecting devices and passive components – Basic test and measurement procedures,
can be found on the IEC website.

IEC 61300-2-56:2020 © IEC 2020 – 5 –
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 6 – IEC 61300-2-56:2020 © IEC 2020
INTRODUCTION
Outdoor protective housings are exposed to wind load. The housing fixings should be able to
withstand the force of the wind without damage to or movement of the housing or its fixings.
The method defined in this document provides reproducible conditions for testing the wind
resistance of protective housings and their mounting hardware, either pole-mounted or ground-
mounted, in two different horizontal directions (frontal and lateral). Additionally, the conditions
for optional testing the wind resistance of pole-mounted protective housings in vertical direction
are given.
Depending on the installation and the location, the wind speed can be very different. Even in
the same geographic location, the wind speed can vary considerably with height above the
ground (e.g. at the top of a mast). Recommended severities are included in this document and
considered as a minimum.
Annex A provides reproducible conditions for testing the wind resistance of pole-mounted
protective housings in vertical direction.
Annex B provides information for the calculation of the resulting force on the protective housing
from wind load.
IEC 61300-2-56:2020 © IEC 2020 – 7 –
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 2-56: Tests – Wind resistance of mounted housing

1 Scope
This part of IEC 61300 describes the test procedure to test the wind resistance of a protective
housing and its mounting hardware using the fastening parts recommended by the
manufacturer. The protective housing is considered to have a cuboid shape.
The applied force in this test procedure simulates a stead
...