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Reliability Test

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High Temperature Test Low Temperature Test Damp Heat Test Salt Spray Test Xenon Light Test Metal Halide Lamp Test Temperature Change Test Temperature/Humidity Combined Cycle Test Low Pressure Test UV Test Carbon Arc Lamp Test

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Damp Heat Test

Damp heat test: temperature stress and humidity stress are simultaneously applied during the test, mainly to evaluate the adaptability of the product in storage, transportation and use in a humidity environment, depending on the actual use environment profile of the product and the purpose of the test. The test methods include constant damp heat and alternating damp heat.
The damp heat test can be a storage test or a work test. It can be natural or artificial environmental conditions.
Damp heat test method: constant damp heat, alternating damp heat, constant damp heat (component accelerated test), constant damp heat (unsaturated high-pressure steam).

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Failure Mechanism Of Damp Heat Test

Test parameters	Main influence	Typical failure results
High relative humidity	Moisture absorption or adsorption; expansion; mechanical strength reduction; chemical reaction; corrosion; electrical corrosion; the conductivity of the insulator increases.	Physical damage, insulation failure, mechanical failure.
Low relative humidity	Drying; embrittlement; reduced mechanical strength; shrinkage; increased wear between moving contacts.	Mechanical failure, cracking.

Test Capability of ORT Damp Heat Test

Damp heat test capability parameters: 10℃~98℃@10%RH~98%RH

Constant heat and humidity (unsaturated high pressure steam) capacity parameters:

Air pressure range: 0.1~0.296Mpa

Temperature range: ≤150℃

Humidity range: 75%RH~100%RH

Applicable standards: GB/T 2423.3, IEC 60068-2-78, GB/T 2423.4, IEC 60068-2-30, GB/T 2423.50, IEC 60068-2-67, GB/T 2423.40, IEC 60068-2-66 , MIL-STD-810H, MIL-STD-883K, MIL-STD-202G, GJB 150A, GJB 360B, GJB 548B, GB/T 28046.4, ISO 16750-4, YD/T 2379, ETSI 300 019-2, GR -63, GR-487, etc.

Damp Heat Test Gallery