H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 7/00 (2006.01) H01C 7/02 (2006.01) H02H 3/08 (2006.01) H02H 9/02 (2006.01)
Patent
CA 2680861
There is provided a circuit protection device that increases the possibility of enabling a circuit to be protected. The circuit protection device (1) comprises a bimetal switch (4) and a PTC element (2), which are electrically connected in parallel with each other. The PTC element has a post-operation resistance value of 1.1 times or less the intrinsic resistance value of the circuit that is calculated based on the rated voltage and current of an electric circuit into which the circuit protection device is built and using the equation (1): rated voltage/rated current = intrinsic resistance value (1)
L'invention concerne un dispositif de protection de circuit qui augmente la possibilité de permettre à un circuit d'être protégé. Le dispositif de protection de circuit (1) comprend un commutateur bimétallique (4) et un élément à coefficient de température positive (PTC) (2), qui sont électriquement connectés en parallèle l'un à l'autre. L'élément PTC a une valeur de résistance post-fonctionnement de 1,1 fois, ou moins, la valeur de résistance intrinsèque du circuit qui est calculée sur la base de la tension nominale et du courant nominal d'un circuit électrique dans lequel le dispositif de protection de circuit est incorporé et à l'aide de l'équation (1) : tension nominale/courant nominal = valeur de résistance intrinsèque (1).
Fetherstonhaugh & Co.
Tyco Electronics Raychem K.k.
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