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IEC 60068-2-78:2025

Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state

Edition date: 2025-08-06
In Force
Available languages: English, French
Summary: IEC 60068-2-78:2025 establishes a test method for determining the ability of components or equipment to withstand transportation, storage and use under conditions of high humidity. The object of this document is to investigate the effect of high humidity at constant temperature without condensation on a specimen over a specified period. It is applicable to small equipment or components as well as large equipment and can be applied to both heat-dissipating and non-heat-dissipating specimens. This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) revision of the requirements for the test chamber;
b) revision of the severities and including the dew point temperatures;
c) change of the temperature tolerances of the test to limits;
d) inclusion of a specified preconditioning procedure;
e) inclusion of a new figure for clarification purposes;
f) revision of standardized requirements for the test report.

L'IEC 60068-2-78:2025 établit une méthode d'essai en vue de déterminer la capacité des composants ou des équipements à supporter le transport, le stockage et l'utilisation dans des conditions de forte humidité. L'objet du présent document est de rechercher l'effet d'une forte humidité à température constante sans condensation sur un spécimen, au cours d'une période spécifiée. Il s'applique aussi bien aux équipements ou composants de petite taille qu'aux équipements volumineux et peut être appliqué à la fois à des spécimens dissipateurs de chaleur et non dissipateurs de chaleur. Cette troisième édition annule et remplace la deuxième édition parue en 2012. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) révision des exigences relatives à la chambre d'essai;
b) révision des sévérités et ajout des températures de point de rosée;
c) remplacement des tolérances sur la température de l'essai par des limites;
d) ajout d'une procédure spécifiée de préconditionnement;
e) ajout d'une nouvelle figure à des fins de clarification;
f) révision des exigences normatives relatives au rapport d'essai.
ICS: 29.020-Electrical engineering in general, 19.040-Environmental testing
CTN: TC 104 - 1308

Standards Cancellations

Anula a IEC 60068-2-78:2012

Otras Relaciones

Acuerdo de Frankfurt FprEN IEC 60068-2-78:2025

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