the eqpt. is intransigently safe
2007-11-06 00:32:06 · 2 answers · asked by lionel g 1 in Science & Mathematics ➔ Engineering
It is covered in Article 504 of the (2005) National Electrical Code.
An "intrinsically safe system" includes appartus, and cables where parts in hazardous (classified) areas are circuits in which any spark or thermal effect is incapable of causing ignition under certain test conditions
. . . generally, hazardous (classified) areas are those with explosive gases or dusts.
2007-11-06 01:07:43 · answer #1 · answered by A Guy 7 · 1⤊ 0⤋
I believe the word you are looking for is "intrinsically" safe. Intrinsically safe equipment is equipment that is designed such that all of its failure modes result in safe conditions. It doesn't require special external protective equipment (such as fuses, etc) in order to work safely.
2007-11-06 00:46:14 · answer #2 · answered by dansinger61 6 · 2⤊ 1⤋