| Summary: | With the supplement and revision of IEC standard, the thermal ignition test of small components has been stipulated. Small component ignition test apparatus is testing equipment of intrinsically safe electrical products about thermal ignition. Its research and application is an important link of energy storage components for energy control and temperature control. This paper starts from the analysis of restraining measures of capacitor and inductance energy storage,its system composition, main technical requirements and working principle of small component ignition test apparatus are systematically introduced. Then, the influence of the surface area of heat source in the calibration circuit on the minimum ignition temperature of the mixture of methane and air is demonstrated. From the running situation and the experimental data, the apparatus has the ability to carry out various small components ignition inspection.
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