GB182339A - Improvements in or relating to electric cables - Google Patents

Improvements in or relating to electric cables

Info

Publication number
GB182339A
GB182339A GB1994221A GB1994221A GB182339A GB 182339 A GB182339 A GB 182339A GB 1994221 A GB1994221 A GB 1994221A GB 1994221 A GB1994221 A GB 1994221A GB 182339 A GB182339 A GB 182339A
Authority
GB
United Kingdom
Prior art keywords
conductor
relating
indicated
electric cables
potential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1994221A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1994221A priority Critical patent/GB182339A/en
Publication of GB182339A publication Critical patent/GB182339A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/181—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for cables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters

Abstract

182,339. Lee, L. R. July 25, 1921. Addition to 164,965. Testing; detecting faults.-In a cable, an auxiliary wire or wires D of different metal from the working conductor A and insulated by hygroscopic or permeable material is associated with the conductor A so that, when the conductors A, D are connected at one end through an indicating instrument, a fault due to the penetration of moisture will be indicated by the potential due to the galvanic action set up. When main current is passing through the conductor A, a fall of potential would also be indicated.
GB1994221A 1920-06-19 1921-07-25 Improvements in or relating to electric cables Expired GB182339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1994221A GB182339A (en) 1920-06-19 1921-07-25 Improvements in or relating to electric cables

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1663620A GB164965A (en) 1920-06-19 1920-06-19 Improvements in or relating to electric cables
GB1994221A GB182339A (en) 1920-06-19 1921-07-25 Improvements in or relating to electric cables

Publications (1)

Publication Number Publication Date
GB182339A true GB182339A (en) 1922-07-06

Family

ID=40451082

Family Applications (3)

Application Number Title Priority Date Filing Date
GB1663620A Expired GB164965A (en) 1920-06-19 1920-06-19 Improvements in or relating to electric cables
GB1994721A Expired GB182340A (en) 1920-06-19 1921-07-25 Improvements in or relating to electric cables
GB1994221A Expired GB182339A (en) 1920-06-19 1921-07-25 Improvements in or relating to electric cables

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB1663620A Expired GB164965A (en) 1920-06-19 1920-06-19 Improvements in or relating to electric cables
GB1994721A Expired GB182340A (en) 1920-06-19 1921-07-25 Improvements in or relating to electric cables

Country Status (2)

Country Link
FR (1) FR536429A (en)
GB (3) GB164965A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752586A (en) * 1954-01-20 1956-06-26 Ohio Ferro Alloys Corp Device for detection of water in oil
US4926129A (en) * 1988-10-12 1990-05-15 Raychem Corporation Sensor assembly for detecting multiple events and distinguishing between them
US5015958A (en) 1983-06-30 1991-05-14 Raychem Corporation Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors
US5077526A (en) * 1988-03-30 1991-12-31 Automated Light Technologies, Inc. Cable failure detection system
US5235286A (en) 1985-06-12 1993-08-10 Raychem Corporation Method for detecting and obtaining information about changers in variables
US5382909A (en) 1983-06-30 1995-01-17 Raychem Corporation Method for detecting and obtaining information about changes in variables

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL89909C (en) * 1953-03-09
JPH0230038U (en) * 1988-08-18 1990-02-26

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752586A (en) * 1954-01-20 1956-06-26 Ohio Ferro Alloys Corp Device for detection of water in oil
US5015958A (en) 1983-06-30 1991-05-14 Raychem Corporation Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors
US5382909A (en) 1983-06-30 1995-01-17 Raychem Corporation Method for detecting and obtaining information about changes in variables
US5235286A (en) 1985-06-12 1993-08-10 Raychem Corporation Method for detecting and obtaining information about changers in variables
US5077526A (en) * 1988-03-30 1991-12-31 Automated Light Technologies, Inc. Cable failure detection system
US4926129A (en) * 1988-10-12 1990-05-15 Raychem Corporation Sensor assembly for detecting multiple events and distinguishing between them

Also Published As

Publication number Publication date
GB164965A (en) 1921-06-23
GB182340A (en) 1922-07-06
FR536429A (en) 1922-05-03

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