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发表于 2008-10-30 13:58
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来自: 中国上海
A type of protection in which the electrical apparatus contains intrinsically safe circuits, which are incapable of causing an explosion in the surrounding atmosphere.
A circuit or part of a circuit is intrinsically safe, when no spark or any thermal effect in this circuit produced in the test conditions prescribed in the standard (which include normal operation and special fault conditions) is capable of causing ignition.
Applicable for measurement and control equipment. |
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