Explain the importance of low temperature test testing

The global temperature is usually in the range of 0°C to +40°C. Generally, the low temperature is usually between -32°C and -46°C in winter, and less than 20% at -51°C. ()

Different types of products use different test conditions. For example: The test temperature for consumer electronics environments is usually between +5°C and -5°C. Netcom products and industrial products are usually taken at -5°C because of service life considerations. Between -20°C, if it is a product for long-term outdoor use, it is recommended that the ambient temperature should be at least -30°C to have a reliable level of bamboo scale.

The IEC regulates the pre-test treatment, post-test treatment, heating rate, temperature stability definition, temperature cabinet load conditions, volume ratio of the measured object to the temperature cabinet, and so on.

The application is usually divided into Low Temperature Storage Test and Low Temperature Operating Test. It is highly recommended to perform cold start test when operating the low temperature test due to practical experience. In most of the products, there is a phenomenon that the power supply cannot be started at a low temperature. It is preferable to perform the low temperature test together with the minimum operating voltage of the product.

Common low-temperature effects include low temperature failure, cracking of materials, embrittlement of glass materials, seizure of movable parts, and changes in lubrication characteristics. Gaotian Test Equipment Co., Ltd. specializes in manufacturing: constant temperature and humidity test chambers, and thermal shock test chambers. , high and low temperature impact test box, high and low temperature damp heat test box, high and low temperature test box, salt spray test box...

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