Flameproof apparatus using non-grounded energy-limiting barrier

Details Flameproof apparatus using non-grounded energy-limiting barrier Flameproof apparatus using non-grounded energy-limiting barrier

2007-01-24

2010-12-14

Fureman, Jared J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transient responsive

C361S091100

Reexamination Certificate

active

07852610

ABSTRACT:
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.

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