Regarding the determination of explosion protection rating
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How is the explosion-proof rating determined after gas classification? The temperature category for hydrogen is T1; why is the explosion protection rating for electrical equipment T4? Should hydrogen-containing gas be selected based on hydrogen?
The temperature category for hydrogen is T1; why is the explosion protection rating for electrical equipment T4? T4 is a higher rating! T6 is the highest level!
The temperature rise rating is usually set at T4; of course, you can also choose T6. The higher the rating, the safer it is
T4 has a high rank; it’s no problem