GB1225013A - Improvements in or relating to methods of and apparatus for testing electric cables - Google Patents

Improvements in or relating to methods of and apparatus for testing electric cables

Info

Publication number
GB1225013A
GB1225013A GB56674/67A GB5667467A GB1225013A GB 1225013 A GB1225013 A GB 1225013A GB 56674/67 A GB56674/67 A GB 56674/67A GB 5667467 A GB5667467 A GB 5667467A GB 1225013 A GB1225013 A GB 1225013A
Authority
GB
United Kingdom
Prior art keywords
cable
screen
light
dec
fault
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
GB56674/67A
Inventor
Michael Edward Hawthorne
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB56674/67A priority Critical patent/GB1225013A/en
Publication of GB1225013A publication Critical patent/GB1225013A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/0004—Microscopes specially adapted for specific applications
    • G02B21/0016—Technical microscopes, e.g. for inspection or measuring in industrial production processes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

1,225,013. Testing electric cable construction. BRITISH INSULATED CALLENDER'S CABLES Ltd. Dec.12, 1968 [Dec.13, 1967], No. 56674/67. Headings G1A and G1M. The position of the conductors in a ribbon or like electric cable is checked by superposing the cable or an image thereof on a screen having windows where the cable conductors ought to be and detecting or measuring light or other radiation which passes through the cable and screen at any point at which a conductor is misplaced. When the radiation used is light it may be detected by eye or a photo-cell. The screen may be a photographic reproduction of a drawing, or an apertured opaque sheet. Two sheets may be used with overlapping apertures so that the effective aperture may be altered in accordance with desired tolerances by varying the degree of overlap. The effective aperture may be smaller than the conductor or its image so that the passage of any light indicates a fault, or it be larger so that only more than a predetermined amount of light indicates a fault. The invention may be used to test cable during manufacture an mark a defect or halt the machine or give an alarm.
GB56674/67A 1967-12-13 1967-12-13 Improvements in or relating to methods of and apparatus for testing electric cables Expired GB1225013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB56674/67A GB1225013A (en) 1967-12-13 1967-12-13 Improvements in or relating to methods of and apparatus for testing electric cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB56674/67A GB1225013A (en) 1967-12-13 1967-12-13 Improvements in or relating to methods of and apparatus for testing electric cables

Publications (1)

Publication Number Publication Date
GB1225013A true GB1225013A (en) 1971-03-17

Family

ID=10477239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56674/67A Expired GB1225013A (en) 1967-12-13 1967-12-13 Improvements in or relating to methods of and apparatus for testing electric cables

Country Status (1)

Country Link
GB (1) GB1225013A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489179A1 (en) * 1980-08-27 1982-03-05 Madaus & Co Dr DEVICE FOR OPTICAL EXPLORATION OF OBJECTS
GB2183829A (en) * 1985-12-03 1987-06-10 Bicc Plc Monitoring of conductors in cable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489179A1 (en) * 1980-08-27 1982-03-05 Madaus & Co Dr DEVICE FOR OPTICAL EXPLORATION OF OBJECTS
GB2183829A (en) * 1985-12-03 1987-06-10 Bicc Plc Monitoring of conductors in cable
EP0227350A2 (en) * 1985-12-03 1987-07-01 BICC Public Limited Company Monitoring of conductors in cable
EP0227350A3 (en) * 1985-12-03 1989-06-14 BICC Public Limited Company Monitoring of conductors in cable

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