申海防爆
指定用於粉塵爆炸區域的 A 級設備 21 其特點是最高表面溫度為 TA 85°C. 在必須防止爆炸的環境中, 空氣中可能含有易燃易爆物質，例如氣體, 蒸氣, 灰塵, 和纖維. Explosions can occur when these substances come into contact with sparks, flames, certain temperatures, or specific air pressures. It is therefore critical to take measures to prevent such explosions.
| 區 20 | 區 21 | 區 22 |
|---|---|---|
| 空氣中以可燃粉塵雲形式持續出現的爆炸性環境, 長期或頻繁存在. | 正常運作時空氣中可能出現爆炸性環境或偶爾以可燃粉塵雲形式出現的場所. | 在正常運作過程中, 在儀器短時間存在的地方不可能出現空氣中以可燃粉塵雲形式存在的爆炸性環境. |
This highlights the importance of adhering to strict safety standards, especially in industrial environments where 霹靂 materials are present. The use of Class A devices, with their specified maximum surface 溫度, is a key strategy in mitigating the risk of explosions. These devices are designed to operate safely within explosive atmospheres by limiting their surface temperatures below the ignition temperatures of the surrounding 易燃的 材料.
The implementation of such safety protocols ensures that operations in hazardous areas remain secure and explosion-free, thereby protecting both personnel and infrastructure.