IEC 60721-2-6:2022/COR1:2023
(Corrigendum)Corrigendum 1 - Classification of environmental conditions - Part 2-6: Environmental conditions appearing in nature - Earthquake vibration and shock
Corrigendum 1 - Classification of environmental conditions - Part 2-6: Environmental conditions appearing in nature - Earthquake vibration and shock
IEC 60721-2-6:2022 deals with environmental conditions appearing in nature related to earthquake vibrations and shocks.
Its object is to define some fundamental properties and quantities for characterization of earthquakes as background material for the severities to which products are liable to be exposed during storage and use. The accelerations given are for ground surface conditions only. Conditions related to structures are referred to but restricted to general case descriptions.
This second edition cancels and replaces the first edition published in 1990. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
the main aim of this revision is to classify in a limited number of classes the seismic activity level of the zone where the equipment could be installed;
the correlation between intensity scales, magnitude scales and peak ground acceleration is deleted due to the scientific uncertainty to define such a correlation in a rigorous way;
updated scales are given both for intensity and for magnitude;
the earthquake zone map, which was not usable in practice, is replaced by an annex giving information about how to retrieve consistent peak ground acceleration distribution all over the world;
with regard to identification of the peak ground seismic acceleration of the zone, where the equipment could be installed, the user is made aware that national standards and laws can apply.
Corrigendum 1 - Classification des conditions d'environnement. Partie 2-6: Conditions d'environnement présentes dans la nature. Vibrations et chocs sismiques
L'IEC 60721-2-6:2022 traite des conditions d'environnement présentes dans la nature et qui sont liées à des vibrations et des chocs sismiques.
Elle a pour objet de définir des propriétés fondamentales et des grandeurs pour la caractérisation des séismes comme base pour les sévérités auxquelles les matériels sont susceptibles d'être exposés durant leur stockage et leur utilisation. Les accélérations données concernent uniquement les conditions à la surface du sol. Les conditions relatives aux structures sont mentionnées, mais leurs descriptions sont limitées aux cas généraux.
Cette deuxième édition annule et remplace la première édition parue en 1990. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
le principal objectif de la présente révision est de classer dans un nombre limité de classes le niveau d'activité sismique de la zone où le matériel est susceptible d'être installé;
la corrélation entre les échelles d'intensité, les échelles de magnitude et l'accélération crête du sol a été supprimée en raison de l'incertitude scientifique qui existe pour la définir de manière rigoureuse;
des échelles mises à jour sont données pour l'intensité et pour la magnitude;
la carte des zones de séismes, qui n'était pas utilisable en pratique, a été remplacée par une annexe qui fournit des informations qui permettent d'obtenir une répartition cohérente de l'accélération crête du sol dans le monde entier;
en ce qui concerne l’identification de l'accélération sismique crête du sol de la zone où le matériel est susceptible d'être installé, l’utilisateur est informé que des normes et des lois nationales peuvent s’appliquer.
General Information
- Status
- Published
- Publication Date
- 15-Oct-2023
- 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
- 16-Oct-2023
- Completion Date
- 27-Oct-2023
Relations
- Effective Date
- 05-Sep-2023
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Frequently Asked Questions
IEC 60721-2-6:2022/COR1:2023 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Corrigendum 1 - Classification of environmental conditions - Part 2-6: Environmental conditions appearing in nature - Earthquake vibration and shock". This standard covers: IEC 60721-2-6:2022 deals with environmental conditions appearing in nature related to earthquake vibrations and shocks. Its object is to define some fundamental properties and quantities for characterization of earthquakes as background material for the severities to which products are liable to be exposed during storage and use. The accelerations given are for ground surface conditions only. Conditions related to structures are referred to but restricted to general case descriptions. This second edition cancels and replaces the first edition published in 1990. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: the main aim of this revision is to classify in a limited number of classes the seismic activity level of the zone where the equipment could be installed; the correlation between intensity scales, magnitude scales and peak ground acceleration is deleted due to the scientific uncertainty to define such a correlation in a rigorous way; updated scales are given both for intensity and for magnitude; the earthquake zone map, which was not usable in practice, is replaced by an annex giving information about how to retrieve consistent peak ground acceleration distribution all over the world; with regard to identification of the peak ground seismic acceleration of the zone, where the equipment could be installed, the user is made aware that national standards and laws can apply.
IEC 60721-2-6:2022 deals with environmental conditions appearing in nature related to earthquake vibrations and shocks. Its object is to define some fundamental properties and quantities for characterization of earthquakes as background material for the severities to which products are liable to be exposed during storage and use. The accelerations given are for ground surface conditions only. Conditions related to structures are referred to but restricted to general case descriptions. This second edition cancels and replaces the first edition published in 1990. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: the main aim of this revision is to classify in a limited number of classes the seismic activity level of the zone where the equipment could be installed; the correlation between intensity scales, magnitude scales and peak ground acceleration is deleted due to the scientific uncertainty to define such a correlation in a rigorous way; updated scales are given both for intensity and for magnitude; the earthquake zone map, which was not usable in practice, is replaced by an annex giving information about how to retrieve consistent peak ground acceleration distribution all over the world; with regard to identification of the peak ground seismic acceleration of the zone, where the equipment could be installed, the user is made aware that national standards and laws can apply.
IEC 60721-2-6:2022/COR1:2023 is classified under the following ICS (International Classification for Standards) categories: 19.040 - Environmental testing. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 60721-2-6:2022/COR1:2023 has the following relationships with other standards: It is inter standard links to IEC 60721-2-6:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
IEC 60721-2-6:2022/COR1:2023 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
IEC 60721-2-6 IEC 60721-2-6
Edition 2.0 2022-12 Édition 2.0 2022-12
CLASSIFICATION OF ENVIRONMENTAL CLASSIFICATION DES CONDITIONS
CONDITIONS – D'ENVIRONNEMENT –
Part 2-6: Environmental conditions appearing in Partie 2-6: Conditions d'environnement présentes
nature – Earthquake vibration and shock dans la nature – Vibrations et chocs sismiques
CORRIGENDUM 1
Corrections to the French version appear after the English text.
Les corrections à la version française sont données après le texte anglais.
IEC 60721-2-6:2022-12/COR1:2023-10(en-fr)
– 2 – IEC 60721-2-6:2022/COR1:2023
IEC 2023
7 Seismic activity zone classification
Figure 2 – Model for composing a response spectrum
Replace, on the vertical axis, the erroneous symbol A with symbol A , in accordance with the
s a
key to the figure, as follows:
Key
a base acceleration amplitude f natural frequency
A response acceleration amplitude k stiffness
a i
D damping M mass
i i
f
natural frequency of distinct oscillators t time
ri
Figure 2 – Model for composing a response spectrum
IEC 2023
Figure 4 – Example of required response spectrum for ground motion
with symbol A , in
Replace, on the top right hand-side of the figure,
...
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