Electrical contact avoidance device

G - Physics – 01 – R

Patent

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Details

G01R 19/145 (2006.01) B66F 11/04 (2006.01) G01R 19/155 (2006.01) G01R 29/12 (2006.01) G08B 21/18 (2006.01) H02G 1/02 (2006.01)

Patent

CA 2086640

An electrical contact avoidance device comprises an inductor plate directly or capacitively coupled to the user and coupled to a detector circuit which derives a DC signal corresponding to a voltage induced in the user's body by a radiated high voltage electrostatic field. A comparator compares the DC signal with a reference signal representing the potential difference between the inductor and reference plates, and activates an alarm if the detected signal exceeds a preselected reference level.

Dispositif de prévention de contacts électriques constitué d'une plaque d'inductance reliée directement ou par capacité à l'utilisateur et reliée à un circuit de détection qui produit un signal c.c. correspondant à la tension induite dans le corps de l'utilisateur par un champ électrostatique haute tension. Un comparateur établit une comparaison entre ce signal c.c. et un signal de référence représentant la différence de potentiel entre les plaques d'induction et de référence, et il active une alarme si le signal reçu dépasse une valeur de référence prédéterminée.

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