FR2402212A1 - METHOD AND DEVICE FOR ESTABLISHING AND MONITORING AN EARTH - Google Patents

METHOD AND DEVICE FOR ESTABLISHING AND MONITORING AN EARTH

Info

Publication number
FR2402212A1
FR2402212A1 FR7726906A FR7726906A FR2402212A1 FR 2402212 A1 FR2402212 A1 FR 2402212A1 FR 7726906 A FR7726906 A FR 7726906A FR 7726906 A FR7726906 A FR 7726906A FR 2402212 A1 FR2402212 A1 FR 2402212A1
Authority
FR
France
Prior art keywords
earth
wire
contact
current
establishing
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.)
Withdrawn
Application number
FR7726906A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7726906A priority Critical patent/FR2402212A1/en
Priority to GB7835500A priority patent/GB2004142A/en
Priority to JP10819878A priority patent/JPS5450852A/en
Priority to DE19782838640 priority patent/DE2838640A1/en
Publication of FR2402212A1 publication Critical patent/FR2402212A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/04—Controlling or regulating desired parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates

Abstract

1. Prise de terre pour la protection d'appareils électriques. 2. On prévoit deux éléments conducteurs 1 et 2 placés en terre. Une source de courant 4 est reliée à l'élément 1 par un fil 3 et à l'élément 2 par un fil 5. Ce circuit est fermé par la terre et le courant doit passer normalement. Si cela est le cas, l'enroulement 6 est excité, le contact 7 est ouvert. Si le courant passe mal ou pas du tout, le contact 7 se ferme et déclenche une alarme, ou un disjoncteur interposé sur l'alimentation de l'ensemble à protéger, lequel est relié à la terre par un fil 10. 3. Protection des bâtiments, locaux industriels, installations fixes ou mobiles, canalisations, machines, appareils divers, paratonnerres.1. Earth connection for the protection of electrical devices. 2. There are two conductive elements 1 and 2 placed in earth. A current source 4 is connected to element 1 by a wire 3 and to element 2 by a wire 5. This circuit is closed by the earth and the current must pass normally. If this is the case, winding 6 is energized, contact 7 is open. If the current passes badly or not at all, contact 7 closes and triggers an alarm, or a circuit breaker interposed on the supply of the assembly to be protected, which is connected to the earth by a 10 wire. buildings, industrial premises, fixed or mobile installations, pipes, machines, various devices, lightning rods.

FR7726906A 1977-09-06 1977-09-06 METHOD AND DEVICE FOR ESTABLISHING AND MONITORING AN EARTH Withdrawn FR2402212A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7726906A FR2402212A1 (en) 1977-09-06 1977-09-06 METHOD AND DEVICE FOR ESTABLISHING AND MONITORING AN EARTH
GB7835500A GB2004142A (en) 1977-09-06 1978-09-04 Monitoring an earthing system
JP10819878A JPS5450852A (en) 1977-09-06 1978-09-05 Method of and device for monitoring quality of grounding system
DE19782838640 DE2838640A1 (en) 1977-09-06 1978-09-05 METHOD AND DEVICE FOR SETTING UP AND MONITORING AN EARTH CONNECTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7726906A FR2402212A1 (en) 1977-09-06 1977-09-06 METHOD AND DEVICE FOR ESTABLISHING AND MONITORING AN EARTH

Publications (1)

Publication Number Publication Date
FR2402212A1 true FR2402212A1 (en) 1979-03-30

Family

ID=9195063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726906A Withdrawn FR2402212A1 (en) 1977-09-06 1977-09-06 METHOD AND DEVICE FOR ESTABLISHING AND MONITORING AN EARTH

Country Status (4)

Country Link
JP (1) JPS5450852A (en)
DE (1) DE2838640A1 (en)
FR (1) FR2402212A1 (en)
GB (1) GB2004142A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3738867A1 (en) * 1987-11-06 1989-06-08 Siemens Ag Measuring device for determining the leak resistance, earth-leakage resistance and site contact resistance
ITCA20020007A1 (en) * 2002-04-24 2003-10-24 Nicola Betti TEST DEVICE FOR THE EARTH SYSTEM, AND RELATED PROTECTION OF THE ELECTRICAL SYSTEM CONNECTED TO IT.

Also Published As

Publication number Publication date
JPS5450852A (en) 1979-04-21
DE2838640A1 (en) 1979-03-08
GB2004142A (en) 1979-03-21

Similar Documents

Publication Publication Date Title
ES270772Y (en) AN ELECTRICAL TERMINAL DEVICE.
ES500482A0 (en) ELECTRONIC TRIP DEVICE ASSOCIATED WITH THE OPERATION MECHANISM OF AN ELECTRICAL CIRCUIT BREAKER FOR UNARED MULTIPOLAR
US1648197A (en) Water-operated circuit closer
FR2352389A1 (en) ELECTRICAL CIRCUIT PROTECTION DEVICE
BE850307A (en) ELECTRICAL CONNECTION DEVICE
DK518182A (en) OVERVOLTAGE PROTECTION DEVICE FOR ELECTRICAL HOUSING INSTALLATIONS
DE69024176T2 (en) Remote control device for an electrical circuit breaker
BE867949A (en) FLAME PROTECTION DEVICE FOR ELECTRICAL SYSTEMS
IT8223542A0 (en) CONDITION SENSITIVE ELECTRIC SWITCHING SYSTEM, ELECTRICAL SWITCHING DEVICE AND ITS METHOD OF OPERATION.
FR2402212A1 (en) METHOD AND DEVICE FOR ESTABLISHING AND MONITORING AN EARTH
SE411985B (en) MOUNTING DEVICE FOR ELECTRICAL INSTALLATION DEVICES
FR2531543A1 (en) DEVICE FOR SECURING AND DETECTING A CONDUCTIVE LIQUID IN AN ENCLOSURE TO BE MONITORED
BE853539A (en) ELECTRICAL INSTALLATION SWITCH, IN PARTICULAR LINE CIRCUIT BREAKER WITH FAULT CURRENT PROTECTION DEVICE
FR2335975A1 (en) PROTECTION CIRCUIT FOR AN ELECTRIC CURRENT SWITCHING DEVICE AGAINST TEMPERATURE EXCEEDINGS
DK270384D0 (en) INSTALLATIONS FOR AUTOMATIC CONTROL, MONITORING AND TESTING OF ELECTRICAL AND MECHANICAL DEVICES IN AUTOMOBILES
NL7809027A (en) METHOD AND DEVICE FOR REMOTE SELECTIVE MONITORING OF ELECTRICAL PIPES FOR THE OCCURRENCE OF SHORT CIRCUITS.
FR2355391A1 (en) PROTECTION AGAINST OVERLOADS OF AN ELECTRICAL APPLIANCE
BE834815A (en) METHOD AND DEVICE FOR MANUFACTURING ELECTRIC CONDUCTORS WITH CONSTANT OHMIC RESISTANCE
FR2315757A1 (en) METHOD AND DEVICE FOR MAKING ELECTRICAL CONTACTS
ES502605A0 (en) AN ELECTRICAL SWITCHING DEVICE THAT INCLUDES A SYSTEM INDICATING THE OPERATING CONDITIONS
FR2434529A1 (en) Electronic circuit connected in telephone line - prevents fraudulent use of line by monitoring line current and shorting line in preset circumstances
JPS5559040A (en) Battery cable disconnection detector
JPS54136397A (en) Leak water high moisture detecting device
KR840000821U (en) Circuit breaker terminal device
FR1290838A (en) Connection device and method for controlling the operation of circuit breakers monitoring leakage current in electrical installations

Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse