Hot line indicator

Details Hot line indicator Hot line indicator

G - Physics

01

R

324/29, 324/58.3

G01R 19/155 (2006.01)

Patent

CA 2028390

A hot line indicator for instantaneously indicating the presence of voltage on an electrical conductor in an AC power distribution system includes a unitary one-piece housing having a projecting metallic probe and a hookeye for engaging a conventional lineman's hot stick. Within the housing, the display electrodes of a high impedance liquid crystal display component are coupled to the monitored conductor through the probe and a capacitive coupling to ground to provide an unambiguous "HL" display indicative of the presence of voltage on the conductor.

Cette invention concerne un indicateur instantané de ligne sous tension pour réseau de distribution en CA; il comporte un boîtier monobloc à sonde métallique en saillie et oeillet pour le passage d'une perche isolante de monteur de lignes. Les électrodes d'un afficheur à cristaux liquides haute impédance monté dans le boîtier sont couplées au conducteur surveillé au moyen de la sonde et reliées à la masse par un couplage capacitif pour afficher une indication "HL" non ambiguë lorsque le conducteur est sous tension.

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