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.

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.

General Information

• Status: Published
• Publication Date: 17-Aug-2020
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Drafting Committee: WG 4 - TC 86/SC 86B/WG 4
• Current Stage: PPUB - Publication issued
• Start Date: 28-Aug-2020
• Completion Date: 18-Aug-2020

Standards Content (Sample)

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

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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

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
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