Which has a higher explosion protection rating, the intrinsically safe type or the flameproof type?
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As the title suggests, the intrinsically safe and flameproof types of explosion protection are based on different principles. So, can it be assumed that the explosion-proof performance of intrinsically safe types is higher than that of flameproof types? It reduces the likelihood of an explosion to a greater extent by relying on itself. Dear sea friends, please share your discussions and guidance! Thank you!
Intrinsic safety instruments are the only ones that can be used in Zone 0 areas
You can think of it as a higher level of intrinsically safe, because intrinsically safe devices can be used in Zone 0, whereas flameproof ones cannot. But it’s not better to understand it in terms of which one is higher; the key point is that their applicable areas are different, and different conditions require appropriate explosion-proof methods for each. Intrinsic safety is not omnipotent either.
Thank you for the explanation; I understand a bit better now.