H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 9/00 (2006.01)
Patent
CA 2637954
A device intended to meet flameproof approval requirements is configured to have two compartments separated by an energy-limiting barrier. The first compartment of the device houses the wiring terminations that bear ignition- capable energy and, therefore, must be flameproof. The energy-limiting barrier is configured to limit the energy that can reach the second compartment to a level that is not ignition capable. This allows the second compartment to be safe without meeting the flameproof requirements, and allows user-interface elements such as switches and indicators to be designed in a more cost- effective manner.
La présente invention concerne un dispositif destiné à se conformer aux exigences d'approbation d'ignifugation et qui est configuré pour avoir deux compartiments séparés par une barrière de limitation d'énergie. Le premier compartiment du dispositif comporte les terminaisons de câblage qui portent une énergie capable d'allumage et doivent donc être ignifugées. La barrière de limitation d'énergie est configurée de manière à restreindre l'énergie qui peut atteindre le second compartiment à un niveau où l'allumage n'est pas possible. Ceci permet de sécuriser le second compartiment sans répondre aux obligations d'ignifugation et de concevoir les éléments d'interface utilisateur, comme les interrupteurs et les voyants, de manière plus rentable.
Ali Riyaz M.
Eisenbeis Clyde Thomas
Seberger Stephen G.
Snowbarger Jimmie L.
Uhlenberg Ronald L.
Fisher Controls International Llc
Ridout & Maybee Llp
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