Electrical utility service tester

Details Electrical utility service tester Electrical utility service tester

2006-06-13

2006-06-13

Deb, Anjan K. (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

With electric power receptacle for line wire testing

C324S511000

Reexamination Certificate

active

07061248

ABSTRACT:
An electrical utility service tester that is used for troubleshooting 120/208 or 120/240, three phase or single phase alternating current electrical utility services where 120 volt hot leg leads of the electrical utility services are connected 120 volts to ground only. The tester is self-contained in a weatherproof case, which enables the tester to withstand exposure to adverse weather conditions without damage or loss of function. The tester also includes circuitry for preventing damage to the electrical circuitry of the tester by preventing the test circuitry for the left and right hot legs of a circuit under test from being simultaneously operative and the test load circuitry for intermittent and continuous test load application from being simultaneously operative.

REFERENCES:
patent: 4164701 (1979-08-01), Gulledge et al.
patent: 5285163 (1994-02-01), Liotta
patent: 5331283 (1994-07-01), Sheldon
patent: 6731217 (2004-05-01), Warner

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