Global Patent Index - EP 1257834 A1

EP 1257834 A1 2002-11-20 - METHOD FOR MEASURING ELECTRICAL CHARACTERISTICS OF A TELECOMMUNICATION CABLE

Title (en)

METHOD FOR MEASURING ELECTRICAL CHARACTERISTICS OF A TELECOMMUNICATION CABLE

Title (de)

MESSVERFAHREN ZUR MESSUNG DER ELEKTRISCHEN EIGENSCHAFTEN EINES NACHRICHTENKABELS

Title (fr)

PROCEDE DE MESURE DES CARACTERISTIQUES ELECTRIQUES D'UN CABLE DE TELECOMMUNICATION

Publication

EP 1257834 A1 (FR)

Application

EP 01907714 A

Priority

  • FR 0100348 W
  • FR 0002222 A

Abstract (en)

[origin: WO0163305A1] The invention concerns a method for measuring the electrical characteristics of a telecommunication cable (10) comprising a bundle of electric wires (11) transporting an operating voltage (U) delivered by an equipment (15) with ground reference, arranged in an insulating sheath comprising a conductive shield (12). The invention is characterised in that it comprises a step which consists in measuring the insulating resistance (Riso) of the shield (12) relative to the ground, a step which consists in determining a global insulating resistance (Ri) of the bundle of wires (11) relative to the conductive shield (12) from the result of the measurement of the insulating resistance (Riso) and the electric potential (Pe) of the shield. The invention is useful for characterising or maintaining telecommunication cables.

IPC 1-7 (main, further and additional classification)

G01R 31/02

IPC 8 full level (invention and additional information)

G01R 31/02 (2006.01)

CPC (invention and additional information)

G01R 31/021 (2013.01)

Citation (search report)

See references of WO 0163305A1

Designated contracting state (EPC)

AT BE CH CY DE ES FR GB IT LI

EPO simple patent family

WO 0163305 A1 20010830; AU 3561501 A 20010903; CA 2400218 A1 20010830; EP 1257834 A1 20021120; FR 2805349 A1 20010824; FR 2805349 B1 20020426; US 2003042913 A1 20030306

INPADOC legal status


2007-01-24 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20060714

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): AT BE CH CY DE ES FR GB IT LI

2003-05-02 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: BUSSINGER, JEAN

2002-11-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020810

2002-11-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-11-20 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI