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Floating 90v AC
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<blockquote data-quote="Geoff1946" data-source="post: 474830" data-attributes="member: 28452"><p>It's not uncommon to be able to feel a "tingle", from mains powered double insulated items, it's usually completely harmless and is due to capacitive coupling.</p><p></p><p>The difference you see in different rooms is most likely to be due to the environment there, such as type of floor you are standing on.</p><p></p><p>As regards meter readings, if you are using a digital multi-meter, with a high input impedance, the same applies, The leads and probes and anything touching them can act similarly to a radio antenna, picking up electromagnetic radiation from nearby sources and giving a misleading and completely meaningless display. </p><p></p><p>In the very best situation you have a series circuit comprising the capacitance of your device and the (unknown) input impedance of your meter to ground.</p></blockquote><p></p>
[QUOTE="Geoff1946, post: 474830, member: 28452"] It's not uncommon to be able to feel a "tingle", from mains powered double insulated items, it's usually completely harmless and is due to capacitive coupling. The difference you see in different rooms is most likely to be due to the environment there, such as type of floor you are standing on. As regards meter readings, if you are using a digital multi-meter, with a high input impedance, the same applies, The leads and probes and anything touching them can act similarly to a radio antenna, picking up electromagnetic radiation from nearby sources and giving a misleading and completely meaningless display. In the very best situation you have a series circuit comprising the capacitance of your device and the (unknown) input impedance of your meter to ground. [/QUOTE]
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Floating 90v AC
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