DK1093202T3 - Method for detecting grounded wires for disconnecting a drill - Google Patents

Method for detecting grounded wires for disconnecting a drill

Info

Publication number
DK1093202T3
DK1093202T3 DK99120492T DK99120492T DK1093202T3 DK 1093202 T3 DK1093202 T3 DK 1093202T3 DK 99120492 T DK99120492 T DK 99120492T DK 99120492 T DK99120492 T DK 99120492T DK 1093202 T3 DK1093202 T3 DK 1093202T3
Authority
DK
Denmark
Prior art keywords
drill
disconnecting
earth conductor
grounded wires
voltage
Prior art date
Application number
DK99120492T
Other languages
Danish (da)
Inventor
Thomas Klingbeil
Original Assignee
Westfalia Werkstoffcompany Gmb
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 Westfalia Werkstoffcompany Gmb filed Critical Westfalia Werkstoffcompany Gmb
Application granted granted Critical
Publication of DK1093202T3 publication Critical patent/DK1093202T3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to undesired approach to, or touching of, live parts by living beings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
    • G01V3/06—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current using ac

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Earth Drilling (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Drilling And Boring (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Procedure detects earthed conductors (6) in a contact free manner by injection of a voltage into the earth conductor of the drill and measurement of the voltage at the drill point which is isolated from the rest of the drill. Alternately if the drill does not have an earth conductor then a measurement signal is injected into the earth conductor of the power supply network.
DK99120492T 1999-10-15 1999-10-15 Method for detecting grounded wires for disconnecting a drill DK1093202T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99120492A EP1093202B9 (en) 1999-10-15 1999-10-15 Method for detecting grounded conductors for switching off a power drill

Publications (1)

Publication Number Publication Date
DK1093202T3 true DK1093202T3 (en) 2006-05-29

Family

ID=8239201

Family Applications (1)

Application Number Title Priority Date Filing Date
DK99120492T DK1093202T3 (en) 1999-10-15 1999-10-15 Method for detecting grounded wires for disconnecting a drill

Country Status (5)

Country Link
EP (1) EP1093202B9 (en)
AT (1) ATE316302T1 (en)
DE (1) DE59913057D1 (en)
DK (1) DK1093202T3 (en)
ES (1) ES2256995T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7536238B2 (en) 2003-12-31 2009-05-19 Sd3, Llc Detection systems for power equipment
US7804204B1 (en) 2005-05-19 2010-09-28 Power Tool Institute Capacitive sensing system for power cutting tool
EP1995842A1 (en) * 2007-05-24 2008-11-26 Abdulrahman Hamed Safety switch-off device for electrical loads
US7739934B2 (en) * 2008-09-08 2010-06-22 Power Tool Institute Detection system for power tool

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207747A1 (en) * 1982-03-04 1983-09-08 Schützeichel, Johannes, 5466 Neustadt Device for monitoring drilling and sawing work in structures, especially prestressed concrete structures
DE3703311A1 (en) * 1987-02-04 1988-08-18 Meyer Fa Rud Otto Process for identification of pipes, iron or cables laid under plaster during performance of drilling work in walls, ceilings or floors and device for carrying out the process
AU7125396A (en) * 1995-09-25 1997-04-17 Jorn Sorensen A method and a device for sensing the distance between a first object and a second object

Also Published As

Publication number Publication date
DE59913057D1 (en) 2006-04-06
ES2256995T3 (en) 2006-07-16
EP1093202B1 (en) 2006-01-18
EP1093202A1 (en) 2001-04-18
EP1093202B9 (en) 2006-06-28
ATE316302T1 (en) 2006-02-15

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