Shenhai Explosion-Proof
Explosion-proof khoom nyob rau hauv hoob kawm II yog categorized rau hauv: Hoob Kawm IIA, Hoob Kawm IIB, thiab Hoob Kawm IIC. Cov kev ntsuam xyuas raws li ib hierarchy: IIC > IIB > IIA.
| Qeb | Roj Classification | Cov neeg sawv cev gases | Yam tsawg kawg yog Ignition spark zog |
|---|---|---|---|
| Nyob rau hauv lub mine | Kuv | methane | 0.280mJ |
| Factories sab nraum lub Mine | IIA | Propane | 0.180mJ |
| IIB | Ethylene | 0.060mJ | |
| IIC | hydrogen | 0.019mJ |
Roj detectors nyob rau IIC tawg-pov thawj rau cov neeg mob yog suitable rau tag nrho flammable gases; txawm li ntawd los, IIB detectors tsis ntes H2 (hydrogen), C2H2 (acetylene), thiab CS2 (disulfide), uas yog characteristic ntawm cov hoob kawm IIC.