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Electrical Inspection & Testing Forum
Phantom voltage?
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<blockquote data-quote="Mike P" data-source="post: 537336" data-attributes="member: 1611"><p>I have had this issue before with phantom voltages in 3 core and earth.</p><p>Allot of the problems are the high impedance input on modern meters.</p><p>Fluke make a Stray Volage Eliminator (SV225) which goes across the input of your digital meter and reduces the high impedance on the input, effectively the same as Roys said earlier, Avo 8’s have a much lower input impedance. Having said that I sometimes use 3 core SY cable and earth the screen on long runs.</p></blockquote><p></p>
[QUOTE="Mike P, post: 537336, member: 1611"] I have had this issue before with phantom voltages in 3 core and earth. Allot of the problems are the high impedance input on modern meters. Fluke make a Stray Volage Eliminator (SV225) which goes across the input of your digital meter and reduces the high impedance on the input, effectively the same as Roys said earlier, Avo 8’s have a much lower input impedance. Having said that I sometimes use 3 core SY cable and earth the screen on long runs. [/QUOTE]
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