Short circuit protected splice connector

H - Electricity – 01 – H

Patent

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Details

H01H 71/14 (2006.01) H01R 31/08 (2006.01) H01R 13/66 (2006.01) H01R 31/02 (2006.01)

Patent

CA 2174862

A method and apparatus for providing electrical protection for circuits that use splice connections between a source of electrical power and wires of respective circuits (31, 32). The splices provide a common connection of wires to the power source. The splice includes a positive temperature coefficient means (22, 24) in electrical series between the power source and the wires (33). The positive temperature coefficient means (22, 24) reduces the flow of current to the wires (33), and to any loads (31, 32) connected to the wires, when an excess amount of current flows through at least one of the wires and the splice. The temperature rise in the positive temperature coefficient means reaches a trip point, and the means remains in a trip state until power fed to the splice is removed.

Procédé et appareil de protection de circuits utilisant une épissure raccordant une alimentation électrique aux conducteurs de ses différents circuits. L'épissure, commune à plusieurs circuits qu'elle relie à la source d'alimentation, comporte une thermistance à coefficient positif de température montée en série entre l'alimentation et les conducteurs qui réduit l'intensité du courant dans les conducteurs et les charges qui leur sont raccordées lorsqu'un courant excessif passe dans au moins un des conducteurs et dans l'épissure. L'élévation de température dans la thermistance à coefficient positif de température atteint un niveau de disjonction et la thermistance reste à l'état disjoncté jusqu'à ce que l'alimentation de l'épissure soit coupée.

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