DE2153341C3 - Prüfschaltung zum Feststellen unzulässiger Berührungsspannungen an elektrischen Geräten - Google Patents

Prüfschaltung zum Feststellen unzulässiger Berührungsspannungen an elektrischen Geräten

Info

Publication number
DE2153341C3
DE2153341C3 DE2153341A DE2153341A DE2153341C3 DE 2153341 C3 DE2153341 C3 DE 2153341C3 DE 2153341 A DE2153341 A DE 2153341A DE 2153341 A DE2153341 A DE 2153341A DE 2153341 C3 DE2153341 C3 DE 2153341C3
Authority
DE
Germany
Prior art keywords
test circuit
impermissible
test
determining
electrical devices
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
DE2153341A
Other languages
German (de)
English (en)
Other versions
DE2153341B2 (de
DE2153341A1 (de
Inventor
Lucius Ponder Indianapolis Ind. Thomas (V.St.A.)
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of DE2153341A1 publication Critical patent/DE2153341A1/de
Publication of DE2153341B2 publication Critical patent/DE2153341B2/de
Application granted granted Critical
Publication of DE2153341C3 publication Critical patent/DE2153341C3/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G01R19/155—Indicating the presence of voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Emergency Alarm Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
DE2153341A 1970-11-10 1971-10-26 Prüfschaltung zum Feststellen unzulässiger Berührungsspannungen an elektrischen Geräten Expired DE2153341C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8836270A 1970-11-10 1970-11-10

Publications (3)

Publication Number Publication Date
DE2153341A1 DE2153341A1 (de) 1972-05-18
DE2153341B2 DE2153341B2 (de) 1973-12-06
DE2153341C3 true DE2153341C3 (de) 1974-07-11

Family

ID=22210936

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2153341A Expired DE2153341C3 (de) 1970-11-10 1971-10-26 Prüfschaltung zum Feststellen unzulässiger Berührungsspannungen an elektrischen Geräten

Country Status (3)

Country Link
US (1) US3784903A (Direct)
JP (1) JPS47010295A (Direct)
DE (1) DE2153341C3 (Direct)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025850A (en) * 1975-10-01 1977-05-24 Joseph Spiteri Passive, solid state wide range voltage checker
AU505689B2 (en) * 1976-02-10 1979-11-29 Email Limited Current operated core balance protective test unit
US4052664A (en) * 1976-05-13 1977-10-04 Leonard Buster Pohl Circuit monitor to determine power on and circuit working
US4292585A (en) * 1979-01-17 1981-09-29 Charette George F Leakage current testing circuit
US5005007A (en) * 1990-05-10 1991-04-02 Yu Li Enterprise Co. Ltd. Alarm device for marine tank
US10288662B2 (en) 2016-04-05 2019-05-14 Shock Alert Llc Shock detector
US9799193B2 (en) 2012-08-28 2017-10-24 Birch Tree Llc Shock detector systems
CN104704539B (zh) 2012-08-28 2017-07-07 伯奇特里有限责任公司 电击检测器
US9506957B1 (en) 2014-08-05 2016-11-29 Aaron Neal Branstetter Floating apparatus for alerting people of the presence of voltage in water
US9959734B1 (en) 2017-04-24 2018-05-01 John Figura Predictive shock alert warning system for use in bodies of water

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR878802A (fr) * 1941-09-18 1943-02-04 Comp Generale Electricite Dispositif de compensation pour appareil de mesure de grandeurs électriques avec redresseur à résistance variable
US2806993A (en) * 1953-06-22 1957-09-17 Edward J Matousek Tool tester
US3066284A (en) * 1957-10-14 1962-11-27 Ca Nat Research Council Dynamic ground detectors
US3141128A (en) * 1961-06-26 1964-07-14 Samuel H Behr Apparatus for testing portable equipment for a. c. and d. c. leakage and for ground continuity
US3263164A (en) * 1961-10-10 1966-07-26 Louis G Solgere Electrical ground and polarity tester with thermally controlled switch means
US3205436A (en) * 1962-02-02 1965-09-07 Thomas M Donahue Method and apparatus for measuring impedance increases in the ground or protective ground wires leading to three-wire prong power receptacles
US3281689A (en) * 1962-03-26 1966-10-25 Expando Meter Company R. m. s. meter circuit using linear resistors and voltage biased diodes to approximate the square law characteristic
US3356939A (en) * 1964-03-25 1967-12-05 Fed Pacific Electric Co Ground leakage detection apparatus for ungrounded systems including toroidal core detector means
US3345562A (en) * 1964-08-03 1967-10-03 Crosley Broadcasting Corp Ac-dc meter
US3426274A (en) * 1964-11-19 1969-02-04 Western Reserve Electronics In Diode bridge protection circuits for electrical measuring instruments employing the diode forward drop threshold voltage
US3376502A (en) * 1965-06-18 1968-04-02 Frederick J. Rink Apparatus having standard impedance calibration means for testing the impedance of an electrical ground and including polarity reversing switch means
US3368146A (en) * 1966-05-25 1968-02-06 John E. Regan Electrical safety tester having a plurality of switches for setting up tests
US3510766A (en) * 1968-02-01 1970-05-05 Saftematic Inc Probe device having a pair of aligned tubular sections for detecting electric leakage

Also Published As

Publication number Publication date
DE2153341B2 (de) 1973-12-06
JPS47010295A (Direct) 1972-05-24
US3784903A (en) 1974-01-08
DE2153341A1 (de) 1972-05-18

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee