Understanding of intrinsically safe instruments and flameproof instruments being damaged
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Everyone, do you think my understanding is correct? That is, thanks to the effect of the safety barrier, intrinsically safe instruments will not get damaged, such as positioners; excessive current will only damage the safety barrier. However, if the current coming from the PLC is too high for the flameproof instrument, it will be damaged. Is this understanding correct?
Intrinsic safety – I understand (▭-▭) it prevents large currents from entering flammable and explosive areas indoors
Generally, the voltage is controlled in order to limit the current.
The understanding is basically correct; in any case, the instrument in this case won’t receive much energy, so there won’t be any sparks or anything like that