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IEVref:426-13-10ID:
Language:enStatus: Standard
Term: self protected energy-limited apparatus "nA nL"
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Definition: apparatus that contains energy-limited sparking contacts, the circuits (including energy-limiting components and devices) supplying energy-limited power to these contacts, as well as the non-energy limited source of supply to the circuit

Note 1 to entry: Non-sparking apparatus "nA" has been replaced by "ec" in IEC 60079-7, Explosive atmospheres – Part 7: Equipment protection by increased safety "e".

Note 2 to entry: Energy-limited apparatus "nL" has been replaced by "ic" in IEC 60079-11, Explosive atmospheres – Part 11: Equipment protection by intrinsic safety "i".


Publication date:2020-03
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