Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1990-04-23
1991-12-31
Wieder, Kenneth A.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324544, 340604, G01R 3110, G08B 2100
Patent
active
050775260
ABSTRACT:
A system is provided for monitoring a communications cable for moisture penetration. A line signal generator is connected to a metal armour layer of the cable to apply a line signal to the armour. Changes in the line signal current are monitored to detect the condition of the cable. Moisture penetration can be monitored throughout the length of the cable. The armour layer is maintained at a negative potential with respective ground. This provides an additional cathodic protection to the cable.
REFERENCES:
patent: 2056085 (1936-09-01), Alles
patent: 3299351 (1967-01-01), Williams
patent: 3662367 (1972-09-01), De Veau, Jr. et al.
patent: 4001674 (1977-01-01), Schneider
patent: 4051436 (1977-09-01), Wier
patent: 4144487 (1979-03-01), Pharney
patent: 4157541 (1979-06-01), Harwell
patent: 4214311 (1980-07-01), Nakashima
patent: 4386231 (1983-05-01), Vokey
patent: 4480251 (1984-10-01), McNaughton
patent: 4695787 (1987-09-01), Billet
patent: 4721916 (1988-01-01), Hanawasa
K. Sontag and A. Ross: "Manitoba Telephone Keeps FO Cables Dry", Telephony, Apr. 6, 1987, pp. 449-453.
Article-Apr. 6, 1987, "Manitoba Telephone Keeps Cables Dry with Special Monitoring System", by A. J. Ross and K. Sontag, reprinted from Telephony, Apr. 6, 1987, copyright 1987 by Telephony Div., Intertec Pub. Corp., Chicago, Ill.
Sontag Kenneth N.
Vokey David E.
Ade Stanley G.
Automated Light Technologies, Inc.
Battison Adrian D.
Solis Jose M.
Thrift Murray E.
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