First, it is essential to develop good habits by carefully checking the multimeter for any abnormalities before use. This does not take much time but has a significant impact. For example, check for any damage to the meter, and whether the digits or needle are functioning correctly, especially when measuring high voltages. Always inspect the meter. Second, the multimeter should be stored in a place that is not prone to moisture, keeping it dry and tidy! Finally, do not use low-quality multimeters; counterfeit products can be harmful. When the multimeter’s voltage rating is insufficient, it can lead to a breakdown during measurement, causing a short circuit. Due to the high current, this can result in an explosion. The explosion is caused by excessive current generating high temperatures, melting and vaporizing the insulating materials within the multimeter, creating localized high-pressure gas, which is often seen as smoke. If this gas is not released in time, it all happens in an instant, leaving no time for a reaction. The chances of the distribution board tripping in such a short time are minimal, as it may not react quickly enough and remains in the closed state. By following these points, electricians can significantly reduce the likelihood of multimeter explosions.
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