GB348311A - Improvements in and relating to apparatus for testing insulated electric cables, wires and the like - Google Patents

Improvements in and relating to apparatus for testing insulated electric cables, wires and the like

Info

Publication number
GB348311A
GB348311A GB9833/30A GB983330A GB348311A GB 348311 A GB348311 A GB 348311A GB 9833/30 A GB9833/30 A GB 9833/30A GB 983330 A GB983330 A GB 983330A GB 348311 A GB348311 A GB 348311A
Authority
GB
United Kingdom
Prior art keywords
insulation
cables
conductors
induction coil
protective hood
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
GB9833/30A
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.)
ISAAC SCLAR
Original Assignee
ISAAC SCLAR
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 ISAAC SCLAR filed Critical ISAAC SCLAR
Priority to GB9833/30A priority Critical patent/GB348311A/en
Publication of GB348311A publication Critical patent/GB348311A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • G01R31/59—Testing of lines, cables or conductors while the cable continuously passes the testing apparatus, e.g. during manufacture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Relating To Insulation (AREA)

Abstract

348,311. Indicating and locating faults; instrument casings; collectors; couplings. SCOTT, J. and SCLAR, I., Inglis Street, Dunfermline. March 27, 1930, No. 9833. [Classes 37 and 38 (i).] Portable apparatus for testing the insulation of cables, particularly the laid-up conductors of colliery cables, comprises pairs of spring-biassed roller contacts 9, 10 engaging the cable sheathing at opposite diameters, the conductors being connected to an induction coil 18 by a flexible single or multiple coupling 26 provided with a needle-point or other connection. A spark gap a, b is located between the roller contacts and induction coil, and so long as normal sparking occurs the insulation is good, cessation of or decrease in sparking indicating faulty insulation. The ends of the casing form cable guides, and a protective hood 3 is provided. Earthed brushes engage the cable sheathing at the cable guides for collecting surface charges thereon. The protective hood 3 may close the main plunger switch 20 when it is placed in position, or the roller-carrying arms may perform this function. The spark gap a, b is provided with an intermediate electrode to maintain its impedance constant, and is adjusted by a knob 33 which may be associated with a calibrated scale. An auxiliary gap 35 may be provided.
GB9833/30A 1930-03-27 1930-03-27 Improvements in and relating to apparatus for testing insulated electric cables, wires and the like Expired GB348311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9833/30A GB348311A (en) 1930-03-27 1930-03-27 Improvements in and relating to apparatus for testing insulated electric cables, wires and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9833/30A GB348311A (en) 1930-03-27 1930-03-27 Improvements in and relating to apparatus for testing insulated electric cables, wires and the like

Publications (1)

Publication Number Publication Date
GB348311A true GB348311A (en) 1931-05-14

Family

ID=9879638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9833/30A Expired GB348311A (en) 1930-03-27 1930-03-27 Improvements in and relating to apparatus for testing insulated electric cables, wires and the like

Country Status (1)

Country Link
GB (1) GB348311A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453313A (en) * 1943-04-29 1948-11-09 Bell Telephone Labor Inc Method of manufacturing communication cables
US2471560A (en) * 1945-11-09 1949-05-31 Okonite Co Sparking electrode for dry electrical testing of insulated wire
US2488578A (en) * 1944-03-18 1949-11-22 Western Electric Co Insulation testing device
US2501482A (en) * 1946-12-03 1950-03-21 Western Electric Co Electrical testing apparatus
US2609927A (en) * 1948-04-17 1952-09-09 Gen Motors Corp Commutator testing and sorting device
CN114114016A (en) * 2021-11-16 2022-03-01 江西伟德智能电气有限公司 Power performance detection device of power distribution cabinet
CN116165327A (en) * 2023-04-20 2023-05-26 河南金水电缆集团有限公司 Device and method for detecting heat-resistant practical electric wires and cables
CN116430175A (en) * 2023-05-24 2023-07-14 常熟市景弘盛通信科技股份有限公司 High-frequency high-speed signal transmission cable test fixture
CN116973672A (en) * 2023-09-25 2023-10-31 合肥航太电物理技术有限公司 Low-level scanning current testing device and testing method thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453313A (en) * 1943-04-29 1948-11-09 Bell Telephone Labor Inc Method of manufacturing communication cables
US2488578A (en) * 1944-03-18 1949-11-22 Western Electric Co Insulation testing device
US2471560A (en) * 1945-11-09 1949-05-31 Okonite Co Sparking electrode for dry electrical testing of insulated wire
US2501482A (en) * 1946-12-03 1950-03-21 Western Electric Co Electrical testing apparatus
US2609927A (en) * 1948-04-17 1952-09-09 Gen Motors Corp Commutator testing and sorting device
CN114114016A (en) * 2021-11-16 2022-03-01 江西伟德智能电气有限公司 Power performance detection device of power distribution cabinet
CN116165327A (en) * 2023-04-20 2023-05-26 河南金水电缆集团有限公司 Device and method for detecting heat-resistant practical electric wires and cables
CN116430175A (en) * 2023-05-24 2023-07-14 常熟市景弘盛通信科技股份有限公司 High-frequency high-speed signal transmission cable test fixture
CN116430175B (en) * 2023-05-24 2024-03-26 常熟市景弘盛通信科技股份有限公司 High-frequency high-speed signal transmission cable test fixture
CN116973672A (en) * 2023-09-25 2023-10-31 合肥航太电物理技术有限公司 Low-level scanning current testing device and testing method thereof
CN116973672B (en) * 2023-09-25 2023-12-29 合肥航太电物理技术有限公司 Low-level scanning current testing device and testing method thereof

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