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What is the explosion-proof level BT4
BT4 is a B-class explosion-proof device, suitable for environments with common explosive gases and surface temperatures ≤ 135 ℃, but high-temperature gases (such as acetylene) should be avoided from use.
What is the explosion-proof level BT4
The explosion-proof level BT4 belongs to Class B explosion-proof, and the specific information is as follows:
Explosion proof level classification
The "B" in BT4 represents the explosion-proof category, which belongs to Class II explosion-proof (except for coal mines and underground environments).
Temperature group and temperature limit
T4: The maximum surface temperature of the equipment shall not exceed 135 ℃. -This level is applicable to common explosive gases such as methane, ethane, hydrogen sulfide, etc., but not to high-risk gases such as acetylene.
Applicable scenarios
BT4 explosion-proof equipment can be safely used in explosive gas environments such as hydrogen and acetylene, but attention should be paid to its temperature limits to avoid danger caused by high temperatures.
Comparison with other levels
CT4 (C-level explosion-proof) has a wider coverage range and can safely use high-risk gases such as acetylene and hydrogen. Its temperature group is the same as BT4 (T4), but its protection level is higher. -The explosion-proof level decreases from low to high (such as T6, T5, T4, T3), and the stricter the temperature limit, the more dangerous the applicable scenario.
Summary: BT4 is a B-class explosion-proof device suitable for environments with common explosive gases and surface temperatures ≤ 135 ℃, but high-temperature gases (such as acetylene) should be avoided from use.
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