Safety measurement device junction box

Details Safety measurement device junction box Safety measurement device junction box

1984-05-17

1986-10-07

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Casings

324107, 324127, 361365, 361394, G01R 104

Patent

active

046161775

ABSTRACT:
A meter junction box for enabling the safe, accurate and efficient measuring of components of multi-phase electric power includes two separate spaced enclosure housings. The two housings are interconnected by a plurality of electrically conductive, non-magnetic conduits which are environmentally sealed at each end thereof in a manner to secure the interior of each housing from the adverse effects of the environment. A single, insulating jacketed electrical conductor passes through each of the respective conduits from one of the housings to the other. The individual conduits provide a means whereby a hook-on type ammeter may be functionally and individually connected with the conduits to measure the current in the conductor passing therethrough. The non-magnetic characteristics of the conduits enable accurate measurement of the current through the conductors without the adverse effects resulting from a ferrous or magnetic material interfering with the magnetic field generated by electrical current flowing through the conductors.

REFERENCES:
patent: 1101210 (1914-06-01), Potter et al.
patent: 2146555 (1939-02-01), Arey

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