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IEC 60721-3-4-ed.3.0
Classification of environmental conditions - Part 3-4: Classification of groups of environmental parameters and their severities - Stationary use at non-weatherprotected locations
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STANDARD published on 22.5.2019
The information about the standard:
Designation standards: IEC 60721-3-4-ed.3.0
Publication date standards: 22.5.2019
SKU: NS-950870
Approximate weight : 300 g (0.66 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60721-3-4-ed.3.0 :
IEC 60721-3-4:2019 classifies groups of environmental parameters and their severities to which products are subjected when installed for stationary use at non-weatherprotected locations. Weatherprotected locations where products can be mounted for stationary use permanently or temporarily are addressed in IEC 60721-3-3. This third edition cancels and replaces the second edition published in 1995 and Amendment 1:1996. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Clause 1: reworded. b) Clause 2: normative references have been updated. c) Clause 3: definitions have been updated. d) Clause 4: reworded and simplified. e) Clause 5: revised and updated. Several classes have been replaced by completely new classes based on the use of new information obtained from referenced technical reports. f) Defined values of chemically active substances are now by reference to ISO 9223. g) Tables 1 through 5: updated. The contents of the corrigendum of July 2023 have been included in this copy. L’IEC 60721-3-4:2019 classifie les groupements d’agents d’environnement et leurs severites, auxquels sont soumis des produits montes pour une utilisation a poste fixe dans des emplacements non proteges contre les intemperies. Les emplacements proteges contre les intemperies ou peuvent etre montes les produits pour une utilisation fixe de maniere permanente ou temporaire sont traites dans l’IEC 60721-3-3. Cette troisieme edition annule et remplace la deuxieme edition parue en 1995, ainsi que son amendement 1:1996. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: a) Article 1: reformulation. b) Article 2: mise a jour des references normatives. c) Article 3: mise a jour des definitions. d) Article 4: reformulation et simplification. e) Article 5: revision et mise a jour. Plusieurs categories ont ete remplacees par des categories totalement nouvelles fondees sur l’utilisation de nouvelles informations obtenues dans les rapports techniques cites en reference; f) Les valeurs definies des substances chimiquement actives font desormais reference a l’ISO 9223. g) Tableaux 1 a 5: mise a jour. Le contenu du corrigendum de juillet 2023 a ete pris en consideration dans cet exemplaire.
These corrections apply to this standard:
IEC 60721-3-4-ed.3.0/Cor.1
Correction
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Corrigendum 1 - Classification of environmental conditions - Part 3-4: Classification of groups of environmental parameters and their severities - Stationary use at non-weatherprotected locations
(Corrigendum 1 - Classification des conditions d´environnement - Partie 3-4: Classification des groupements des agents d´environnement et de leurs severites - Utilisation a poste fixe, non protege contre les intemperies)
Correction published on 24.7.2023
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