Method and apparatus for testing filter/protector units for...

Details Method and apparatus for testing filter/protector units for... Method and apparatus for testing filter/protector units for...

2006-04-04

2006-04-04

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S509000, C361S111000

Reexamination Certificate

active

07023218

ABSTRACT:
A method and apparatus for testing filter/protector units positioned along a fiber optic cable are disclosed. The fiber optic cable includes a metallic sheath surrounding the cable and several filter/protector units positioned along the cable. A cable locating unit generates an electric signal. The metallic sheath conducts the electrical signal. The electric signal creates a voltage within the metallic sheath. The voltage level is below a specified flashover point or threshold of a normally operating filter/protector unit. As a result, any filter/protector units that are triggered by the electric signal are considered faulty.

REFERENCES:
patent: 5973604 (1999-10-01), Eslambolchi et al.
patent: 6873160 (2005-03-01), Eslambolchi et al.

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