IEC EN 60068-2-33 Environmental Tests - Temperature Change Tests

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of IEC EN 60068-2-33 testing. Provides guidance to designers and test personnel on the features and use of temperature change tests. The temperature change test aims to determine the effect of a temperature change or successive temperature changes on the sample.

Sudden temperature changes can be expected in the following situations:

• When equipment is moved from warm indoor environments to cold outdoor conditions and vice versa;
• When the equipment is suddenly cooled by rain or immersion in cold water;
• In externally mounted air equipment;
• Or under certain shipping and storage conditions.

When high temperature gradients occur after an equipment is turned on, the components will be stressed due to the changing temperature; For example. Radiation near high-voltage resistors can cause surface temperatures to rise in adjacent components while other parts are still cold.

Artificially cooled components can undergo rapid temperature changes when the cooling system is turned on. Rapid temperature changes in components can also be triggered during the manufacturing processes of the equipment.

The number, amplitude and time interval between temperature changes are important. Applying a transfer time of 2 to 3 minutes, the magnitude of the thermal stresses to which the sample is subjected will be less for very small parts than for large ones. However, thermal stresses will bear a correlation with what such a sample will be exposed to when transported from an atmosphere at one extreme temperature to an atmosphere at the other extreme within a few minutes.

EUROLAB assists manufacturers with IEC EN 60068-2-33 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.