JPS57166567A - Continuous dielectric strength testing method for electric wire - Google Patents

Continuous dielectric strength testing method for electric wire

Info

Publication number
JPS57166567A
JPS57166567A JP5280381A JP5280381A JPS57166567A JP S57166567 A JPS57166567 A JP S57166567A JP 5280381 A JP5280381 A JP 5280381A JP 5280381 A JP5280381 A JP 5280381A JP S57166567 A JPS57166567 A JP S57166567A
Authority
JP
Japan
Prior art keywords
cable
core
dielectric strength
cable core
electric wire
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.)
Granted
Application number
JP5280381A
Other languages
Japanese (ja)
Other versions
JPH0136071B2 (en
Inventor
Kazuo Watanabe
Michio Takaoka
Shotaro Yoshida
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.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP5280381A priority Critical patent/JPS57166567A/en
Publication of JPS57166567A publication Critical patent/JPS57166567A/en
Publication of JPH0136071B2 publication Critical patent/JPH0136071B2/ja
Granted 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
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
    • G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements

Abstract

PURPOSE:To apply a high voltage to a cable core locally without contacting by running a cable core linearly, fitting a thin and long iron core provided with an exciting winding while surrounding the cable core with the iron core, and exciting the cable core. CONSTITUTION:An iron core 10 is provided spirally while surrounding a cable core 50 running successively and linearly as shown by an arrow 51. When a current is flowed through an exciting winding 20, magnetic flux 40 is produced, for example, as shown in the figure. One terminal of a cable conductor 52 is grounded and a voltage 60 is induced across the cable conductor 52 according to variation in magnetic flux 40. When an external semiconductive layer 56 is also grounded, the voltage 60 is applied to a cable insulator 54, and consequently a test of dielectric strength is carried out continuously.
JP5280381A 1981-04-08 1981-04-08 Continuous dielectric strength testing method for electric wire Granted JPS57166567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5280381A JPS57166567A (en) 1981-04-08 1981-04-08 Continuous dielectric strength testing method for electric wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5280381A JPS57166567A (en) 1981-04-08 1981-04-08 Continuous dielectric strength testing method for electric wire

Publications (2)

Publication Number Publication Date
JPS57166567A true JPS57166567A (en) 1982-10-14
JPH0136071B2 JPH0136071B2 (en) 1989-07-28

Family

ID=12924995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5280381A Granted JPS57166567A (en) 1981-04-08 1981-04-08 Continuous dielectric strength testing method for electric wire

Country Status (1)

Country Link
JP (1) JPS57166567A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015518281A (en) * 2012-04-26 2015-06-25 ライフウェーブ， インコーポレイテッド System configuration using double spiral conductors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015518281A (en) * 2012-04-26 2015-06-25 ライフウェーブ， インコーポレイテッド System configuration using double spiral conductors

Also Published As

Publication number Publication date
JPH0136071B2 (en) 1989-07-28

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