Method and a device for detecting an internal arc in a metal-clad electrical link
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United States of America Patent
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Jun 24, 2003
Issued Date -
N/A
app pub date -
Jul 1, 2002
filing date -
Nov 25, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a method of detecting an internal arc in a metal-clad electrical link, wherein the rising edge of the internal pressure surge generated by the arc and propagating inside the cladding is detected at a fixed location along the cladding. The invention also relates to a device comprising at least one one-way detection unit constituted by a pressure sensor disposed outside the cladding and connected to the inside the cladding via a horn-shaped duct which slopes relative to the axis of the cladding, which has its mouth opening out in the cladding, and which has its tip connected to the pressure sensor.
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