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Message: <blockquote data-quote="imhotep" data-source="post: 25056490" data-attributes="member: 562115">Professional multimeters have to stick to IEC safety standards for test equipment.Things are quite serious when working with higher voltages on electrical power systems. These are rated for different categories. It's not only the voltage level, but the user has to be protected from voltage spikes and transients. Take the scenario - you  are measuring on a three phase system and suddenly a lightning bolt strikes the power line. That's why the safety standards are needed for these measuring instruments. But that's another discussion.<img src="/styles/default/xenforo/smilies/default/yes.gif"  class="smilie" loading="lazy" alt=":yes:" title="Yes    :yes:" data-shortname=":yes:" /></blockquote>

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