High-resistance probe and voltage detector incorporating same
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United States of America Patent
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Nov 27, 2001
Grant Date -
May 24, 2001
app pub date -
Apr 1, 1999
filing date -
Apr 1, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for testing a conductor for the presence of high AC voltage includes a voltage detection circuit connected to a probe assembly, preferably designed for insertion in the access bushing of an underground electrical transmission or distribution equipment. The probe assembly includes an elongated tubular insulating housing with a conductive probe at one end and a threaded connector at the other end for connection to the detection circuit. A high resistance, preferably several megohms, is connected in series between the tip and the connector and is preferably comprised of a plurality of series-connected resistors encased in a heat shrink tubing.
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