DK270786A - DEVICE FOR TESTING EARTH FIRE EARTH CONNECTION - Google Patents

DEVICE FOR TESTING EARTH FIRE EARTH CONNECTION Download PDF

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Publication number
DK270786A
DK270786A DK270786A DK270786A DK270786A DK 270786 A DK270786 A DK 270786A DK 270786 A DK270786 A DK 270786A DK 270786 A DK270786 A DK 270786A DK 270786 A DK270786 A DK 270786A
Authority
DK
Denmark
Prior art keywords
earth
fence
earth connection
testing
connection
Prior art date
Application number
DK270786A
Other languages
Danish (da)
Other versions
DK172169B1 (en
DK270786D0 (en
Inventor
Ian Maxwell Woodhead
Original Assignee
New Zealand Dev Finance
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 New Zealand Dev Finance filed Critical New Zealand Dev Finance
Priority to DK270786A priority Critical patent/DK172169B1/en
Publication of DK270786D0 publication Critical patent/DK270786D0/en
Publication of DK270786A publication Critical patent/DK270786A/en
Application granted granted Critical
Publication of DK172169B1 publication Critical patent/DK172169B1/en

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  • Housing For Livestock And Birds (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

An apparatus for testing the earth connection of an electric fence is constructed in such a manner that it measures and compares the potential differences between the earth return system of the fence and a "safe" earth connection, (that is to say the zero conductor or the earth conductor of the mains power supply), and, by means of a switching arrangement, the potential difference between the live fence wire and the earth connection of the fence. As a pulsed direct current is transmitted on the fence, means are provided for recording maximum voltages. The apparatus is constructed with an indicator with a display means, by means of which said potential differences are displayed. <IMAGE>
DK270786A 1986-06-09 1986-06-09 Apparatus for testing the earth connection of an electric fence DK172169B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK270786A DK172169B1 (en) 1986-06-09 1986-06-09 Apparatus for testing the earth connection of an electric fence

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK270786 1986-06-09
DK270786A DK172169B1 (en) 1986-06-09 1986-06-09 Apparatus for testing the earth connection of an electric fence

Publications (3)

Publication Number Publication Date
DK270786D0 DK270786D0 (en) 1986-06-09
DK270786A true DK270786A (en) 1987-12-10
DK172169B1 DK172169B1 (en) 1997-12-08

Family

ID=8114876

Family Applications (1)

Application Number Title Priority Date Filing Date
DK270786A DK172169B1 (en) 1986-06-09 1986-06-09 Apparatus for testing the earth connection of an electric fence

Country Status (1)

Country Link
DK (1) DK172169B1 (en)

Also Published As

Publication number Publication date
DK172169B1 (en) 1997-12-08
DK270786D0 (en) 1986-06-09

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed