Intrinsically Safe definitions

Intrinsically Safe

An instrument which will not produce any spark or thermal effects under normal or abnormal conditions that will ignite a specified gas mixture.
Found on https://www.encyclo.co.uk/local/20850

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intrinsically safe

Not capable of igniting a flammable atmosphere under both normal and `fault' conditions.
Found on https://www.encyclo.co.uk/local/21137

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