FR1429276A - Interrupteurs électriques de sécurité - Google Patents

Interrupteurs électriques de sécurité

Info

Publication number
FR1429276A
FR1429276A FR981788A FR981788A FR1429276A FR 1429276 A FR1429276 A FR 1429276A FR 981788 A FR981788 A FR 981788A FR 981788 A FR981788 A FR 981788A FR 1429276 A FR1429276 A FR 1429276A
Authority
FR
France
Prior art keywords
electrical safety
safety switches
switches
electrical
safety
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
FR981788A
Other languages
English (en)
Inventor
Lounas Kerrad
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 filed Critical
Priority to FR981788A priority Critical patent/FR1429276A/fr
Application granted granted Critical
Publication of FR1429276A publication Critical patent/FR1429276A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/30—Switches having at least one liquid contact with level of surface of contact liquid displaced by expansion or evaporation thereof
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H87/00—Protective devices in which a current flowing through a liquid or solid is interrupted by the evaporation of the liquid or by the melting and evaporation of the solid when the current becomes excessive, the circuit continuity being reestablished on cooling

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR981788A 1964-07-16 1964-07-16 Interrupteurs électriques de sécurité Expired FR1429276A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR981788A FR1429276A (fr) 1964-07-16 1964-07-16 Interrupteurs électriques de sécurité

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR981788A FR1429276A (fr) 1964-07-16 1964-07-16 Interrupteurs électriques de sécurité

Publications (1)

Publication Number Publication Date
FR1429276A true FR1429276A (fr) 1966-02-25

Family

ID=8834606

Family Applications (1)

Application Number Title Priority Date Filing Date
FR981788A Expired FR1429276A (fr) 1964-07-16 1964-07-16 Interrupteurs électriques de sécurité

Country Status (1)

Country Link
FR (1) FR1429276A (fr)

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