AS 60068.2.78-2003

1 - AS 60068.2.78-2003 ENVIRONMENTAL TESTING - TESTS-TEST Cab: DAMP HEAT, STEADY STATE
4 - PREFACE
5 - CONTENTS
7 - 1 Scope
7 - 2 Normative references
7 - 3 General description
8 - 4 Test chamber
8 - 4.1 Testing of heat-dissipating specimens
8 - 4.2 Mounting of the specimens
8 - 5 Severity
9 - 6 Initial measurements
9 - 7 Conditioning
9 - 8 Intermediate measurements
9 - 9 Recovery
10 - 10 Final measurements
10 - 11 Information to be given in the relevant specification

This Standard provides a test method for determining the suitability of electrotechnical products, components or equipment for transportation, storage and use under conditions of high humidity. The test is primarily intended to permit the observation of the effect of high humidity at constant temperature without condensation on the specimen over a prescribed period.

This part of IEC 60068 provides a test method for determining the suitability of electrotechnical products, components or equipment for transportation, storage and use under conditions of high humidity. The test is primarily intended to permit the observation of the effect of high humidity at constant temperature without condensation on the specimen over a prescribed period. This test provides a number of preferred severities of high temperature, high humidity and test duration. The test can be applied to both heat-dissipating and non-heat dissipating specimens. The test is applicable to small equipment or components as well as large equipment having complex interconnections with test equipment external to the chamber, requiring a set-up time which prevents the use of preheating and the maintenance of specified conditions during the installation period.

First published as aprt of AS C333-1963.
Revised and redesignated in part as AS 1099.2Ca-1971.
Revised and redesignated as AS 1099.2.3-1990.
Revised and redesignated as AS 60068.2.78-2003.