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2026/06/10(Wed)

Fundamentals of Electrical Safety Testing

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How long does a warm-up take?

The warm-up for our products takes about 30 minutes, which is stated as part of our specification.
Measuring instruments (or power supplies) need to avoid a warm-up drift on their internal circuits or elements to ensure the machining accuracy.
Therefore, we recommend that instruments should be powered on for a certain period of time before use.
It is especially critical that the power supplies and electronic loads should be output on (or set to load on) during the warm-up to stabilize their semiconductors (e.g., power transistors) prior to calibration of the indicators.
Once the warm-up is complete, you don’t need to warm up each time you change the current value.

FREE WEBINAR Fundamentals of Electrical Safety Testing webinar

2026/06/10(Wed)

Fundamentals of Electrical Safety Testing

A Thorough Explanation of Hipot, IR, Ground Bond, and
Leakage Current Testing

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