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CEI EN IEC 60721-3-4

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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Organization: CEI
Publication Date: 1 January 2020
Status: active
Page Count: 24
ICS Code (Environmental testing): 19.040
scope:

This part of IEC 60721 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.

The environmental conditions specified in this document are limited to those which can directly affect the performance of products. Only environmental conditions as such are considered. No special description of the effects of these conditions on the products is provided.

Environmental conditions directly related to fire or explosion hazards, microclimate within a product, and conditions related to effects from ionizing radiation are excluded. Any other unforeseen incidents are also excluded.

A limited number of classes of environmental conditions is given, covering a broad field of application.

Document History

CEI EN IEC 60721-3-4
January 1, 2020
Classification of environmental conditions Part 3-4: Classification of groups of environmental parameters and their severities - Stationary use at non-weatherprotected locations
This part of IEC 60721 classifies groups of environmental parameters and their severities to which products are subjected when installed for stationary use at non-weatherprotected locations....
CEI EN 60721-3-4
September 1, 1998
Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 4: Stationary use at non-weatherprotected locations
CEI EN 60721-3-4
October 1, 1996
Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 4: Stationary use at non-weatherprotected locations
La presente Norma classifica i gruppi di parametri ambientali e le loro severità ai quali sono assoggettati i prodotti se montati per uso in posizione fissa, in modo permanente o temporaneo, in...
EN 60721-3-4
January 1, 1990
Classificazione delle condizioni ambientali - Parte 3: Classificazione dei gruppi di parametri ambientali e loro severità. Uso in posizione fissa in luoghi non protetti dalle intemperie
La presente Norma, inizialmente conforme al Documento di Armonizzazione CENELEC HD 478.3.4 S1, contestuale alla Pubblicazione IEC 721-3-4 (1987) e che, in seguito alla pubblicazione della Var. n. 1...

References

This document references:
IEC 60068-2-27 - Environmental testing – Part 2-27: Tests – Test Ea and guidance: Shock
Published by IEC on February 1, 2008
Object To provide a standard procedure for determining the ability of a specimen to withstand specified severities of shock.
This document references:
60068-3-3 CORR 1 - Environmental testing – Part 3-3: Supporting documentation and guidance – Seismic test methods for equipment
Published by IEC on September 1, 2021
A description is not available for this item.
This document references:
IEC 60721-1 - Classification of environmental conditions Part 1: Environmental parameters and their severities
Published by IEC on October 1, 2002
This part of IEC 60721 lists environmental parameters and a limited number of their severities within the range of conditions met by electrotechnical products when being transported, stored,...
This document references:
IEC 60721-2-1 - Classification of environmental conditions – Part 2-1: Environmental conditions appearing in nature – Temperature and humidity
Published by IEC on June 1, 2013
This part of IEC 60721 presents classifications of open-air climates in terms of temperature and humidity. It is intended to be used as part of the background material when selecting appropriate...
This document references:
IEC 60721-2-2 - Classification of environmental conditions – Part 2-2: Environmental conditions appearing in nature – Precipitation and wind
Published by IEC on December 1, 2012
This part of IEC 60721 presents fundamental properties, quantities for characterization, and a classification of environmental conditions dependent on precipitation and wind relevant for...
This document is referenced by:
CEI EN 50617-1 - Railway applications - Technical parameters of train detection systems for the interoperability of the trans-European railway system Part 1: Track circuits
Published by CEI on June 1, 2016
This European Standard specifies the technical parameters of track circuits associated with the disturbing current emissions limits for RST in the context of interoperability defined in the form of...
This document is referenced by:
CEI EN 50216-12 - Power transformer and reactor fittings Part 12: Fans
Published by CEI on February 1, 2012
EN 50216-12 deals with fans for oil-to-air coolers used for transformers as well as fans used for blowing out radiators. Only fans operating axially are dealt with in this standard specification....
This document is referenced by:
CEI EN 50152-2 - Railway applications - Fixed installations - Particular requirements for alternating current switchgear Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV
Published by CEI on July 1, 2013
This European Standard is applicable to single-pole and two-pole alternating current (a.c.) disconnectors, earthing switches and switches which are: - designed for indoor or outdoor fixed...
This document is referenced by:
CEI EN 60076-1 - Power transformers Part 1: General
Published by CEI on March 1, 2015
This part of IEC 60076 applies to three-phase and single-phase power transformers (including auto-transformers) with the exception of certain categories of small and special transformers such as: –...
This document is referenced by:
CEI EN 61800-2 - Adjustable speed electrical power drive systems Part 2: General requirements - Rating specifications for low voltage adjustable speed a.c. power drive systems
Published by CEI on March 1, 2016
This part of IEC 61800 applies to adjustable speed electric a.c. power drive systems, which include semiconductor power conversion and the means for their control, protection, monitoring, measurement...
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