CA1090860A - Appareil electrique servant au degel des tuyaux et muni d'un capteur de courant electrique - Google Patents

Appareil electrique servant au degel des tuyaux et muni d'un capteur de courant electrique

Info

Publication number
CA1090860A
CA1090860A CA269,414A CA269414A CA1090860A CA 1090860 A CA1090860 A CA 1090860A CA 269414 A CA269414 A CA 269414A CA 1090860 A CA1090860 A CA 1090860A
Authority
CA
Canada
Prior art keywords
terminals
current
pair
warning means
current sensing
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
CA269,414A
Other languages
English (en)
Inventor
Douglas B. Hughes
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 CA269,414A priority Critical patent/CA1090860A/fr
Application granted granted Critical
Publication of CA1090860A publication Critical patent/CA1090860A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/09—Component parts or accessories
    • E03B7/14—Devices for thawing frozen pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F16L53/35—Ohmic-resistance heating

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
CA269,414A 1977-01-10 1977-01-10 Appareil electrique servant au degel des tuyaux et muni d'un capteur de courant electrique Expired CA1090860A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA269,414A CA1090860A (fr) 1977-01-10 1977-01-10 Appareil electrique servant au degel des tuyaux et muni d'un capteur de courant electrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA269,414A CA1090860A (fr) 1977-01-10 1977-01-10 Appareil electrique servant au degel des tuyaux et muni d'un capteur de courant electrique

Publications (1)

Publication Number Publication Date
CA1090860A true CA1090860A (fr) 1980-12-02

Family

ID=4107698

Family Applications (1)

Application Number Title Priority Date Filing Date
CA269,414A Expired CA1090860A (fr) 1977-01-10 1977-01-10 Appareil electrique servant au degel des tuyaux et muni d'un capteur de courant electrique

Country Status (1)

Country Link
CA (1) CA1090860A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113463728A (zh) * 2021-07-13 2021-10-01 浙江融乐环境科技有限公司 一种具有应急功能的恒压供水设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113463728A (zh) * 2021-07-13 2021-10-01 浙江融乐环境科技有限公司 一种具有应急功能的恒压供水设备

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