IEC 60068-2-6:2007

Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal)

Gives a method of test which provides a standard procedure to determine the ability of components, equipment and other articles, hereinafter referred to as specimens, to withstand specified severities of sinusoidal vibration. If an item is to be tested in an unpackaged form, that is without its packaging, it is referred to as a test specimen. However, if the item is packaged then the item itself is referred to as a product and the item and its packaging together are referred to as a test specimen. The purpose of this test is to determine any mechanical weakness and/or degradation in the specified performance of specimens and to use this information, in conjunction with the relevant specification, to decide upon the acceptability of the specimens. In some cases, the test method may also be used to demonstrate the mechanical robustness of specimens and/or to study their dynamic behaviour. Categorization of components can also be made on the basis of a selection from within the severities quoted in the test. The major changes with regard to the previous edition concern: - Reference to the latest version of IEC 60068-2-47:Mounting - Simplification of the layout of the standard by replacing some tables with text. - Addition of the test report requirements (see Clause 13).

Essais d'environnement - Partie 2-6: Essais - Essai Fc: Vibrations (sinusoïdales)

Fournit une méthode d'essai qui donne des règles d'exécution normalisées pour déterminer l'aptitude des composants, matériels et autres articles ci-après désignés "spécimens", à résister à des sévérités spécifiées de vibrations sinusoïdales. S'il est prevu de soumettre un objet aux essais en étant non emballé, sans son emballage, il est désigné comme un spécimen d'essai. Cependant, si l'objet est emballé, alors l'objet lui-même est désigné comme produit et l'objet ainsi que son emballage sont désignés comme spécimen d'essai. L'objet de cet essai est de déterminer les faiblesses mécaniques et/ou les dégradations des performances spécifiées des spécimens, et d'utiliser ces renseignements conjointement avec la spécification particulière pour décider si un spécimen est acceptable ou non. Dans certains cas, la méthode d'essai peut également être utilisée pour démontrer la robustesse mécanique d'un spécimen et/ou pour étudier son comportement dynamique. La classification des composants en catégories peut également se faire sur la base d'une sélection faite à partir des sévérités données dans l'essai. Les modifications principales par rapport à l'édition précédente sont les suivantes: - Référence à la dernière version de la CEI 60068 2 47: Fixation. - Simplification de la mise en page de la norme en remplaçant quelques tableaux par du texte. - Ajout d'exigences sur le rapport d'essai (voir Article 13).

General Information

• Status: Published
• Publication Date: 12-Dec-2007
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 19.040 - Environmental testing
• Technical Committee: TC 104 - Environmental conditions, classification and methods of test
• Drafting Committee: MT 17 - TC 104/MT 17
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jan-2008
• Completion Date: 13-Dec-2007

Relations

• Revises: IEC 60068-2-6:1995 - Environmental testing - Part 2: Tests - Test Fc: Vibration (sinusoidal)
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60068-2-6
Edition 7.0 2007-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-6: Tests – Test Fc: Vibration (sinusoidal)

Essais d'environnement –
Partie 2-6: Essais – Essai Fc: Vibrations (sinusoïdales)

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IEC 60068-2-6
Edition 7.0 2007-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-6: Tests – Test Fc: Vibration (sinusoidal)

Essais d'environnement –
Partie 2-6: Essais – Essai Fc: Vibrations (sinusoïdales)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 19.040 ISBN 2-8318-9490-5
– 2 – 60068-2-6 © IEC:2007
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references.7
3 Terms and definitions .7
4 Requirements for testing.10
4.1 Required characteristics .10
4.1.1 Basic motion.10
4.1.2 Spurious motion.10
4.1.3 Signal tolerance.11
4.1.4 Vibration amplitude tolerances .11
4.1.5 Frequency tolerances.11
4.1.6 Sweep .12
4.2 Control strategy .12
4.2.1 Single/multipoint control.12
4.2.2 Multi-reference control .13
4.3 Mounting .13
5 Severities .13
5.1 Frequency range.14
5.1.1 Lower frequency f Hz .14
5.1.2 Upper frequency f Hz .14
5.2 Vibration amplitude.14
5.3 Duration of endurance .17
5.3.1 Endurance by sweeping .17
5.3.2 Endurance at fixed frequencies .18
6 Preconditioning.18
7 Initial measurements.18
8 Testing .18
8.1 General .18
8.2 Vibration response investigation.19
8.3 Endurance procedures.19
8.3.1 Endurance by sweeping .19
8.3.2 Endurance at fixed frequencies .19
9 Intermediate measurements.20
10 Recovery .20
11 Final measurements .20
12 Information to be given in the relevant specification.20
13 Information to be given in the test report .21

Annex A (informative) Guide to test Fc .
Annex B (informative) Examples of severities primarily intended for components .36
Annex C (informative) Examples of severities primarily intended for equipment.37

Bibliography .39

60068-2-6 © IEC:2007 – 3 –
Figure 1 – Nomogram relating vibration amplitude to frequency with lower cross-over
frequency (8 Hz to 10 Hz).15
Figure 2 – Nomogram relating vibration amplitude to frequency with higher cross-over
frequency (58 Hz to 62 Hz).
Figure 3 – Nomogram relating vibration displacement amplitude to frequency (only
applicable for frequency ranges with an upper frequency of 10 Hz) .17
Figure A.1 – Generalized transmissibility factors for vibration isolators.33

Table A.1 – Number of sweep cycles and associated endurance times per axis .30
Table A.2 – CB response time .31
Table A.3 – CPB response time.32
Table B.1 – Endurance by sweeping – Examples with higher cross-over frequency .36
Table C.1 – Endurance by sweeping – Examples with lower cross-over frequency .37
Table C.2 – Endurance by sweeping – Examples with higher cross-over frequency .38

– 4 – 60068-2-6 © IEC:2007
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENVIRONMENTAL TESTING –
Part 2: Tests – Test Fc: Vibration (sinusoidal)

FOREWORD
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