Shenhai Explosion-Proof
Plua plav tawg-pov thawj hluav taws xob hoists yog classified rau hauv peb tawg-pov thawj qib: IIA, IIB, thiab IIC. Lawv yog suitable rau tej chaw uas combustible gases los yog vapors sib xyaw nrog cua, qeb rau hauv pawg T1 mus T4.
| 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 |
Cov hluav taws xob hoists no ntxiv faib ua hoob kawm B thiab hoob kawm C hom, typically utilized in Zones 1 Thiab 2. The applicable txias range for these hoists spans from T1 to T6, with T6 being the safest in terms of explosion-proof safety.