粉塵防爆設備防爆標誌

1. 區域設備 20 同 “兆多” Dust Explosion-Proof Type

Explosion-Proof Marking: Ex mD 20 溫度120°C

2. 區域設備 20 同 “國際局” 塵 Explosion-Proof Type

Explosion-Proof Marking: Ex iaD 20 溫度120°C

3. 區域設備 21 同 “PD” Dust Explosion-Proof Type

Explosion-Proof Marking: Ex pD 21 IP65 T120℃

4. 區域設備 21 同 “TD嘅” Type A Dust Explosion-Proof; 溫度 Testing Conducted Under 500mm Thick Dust Layer

Explosion-Proof Marking: Ex tD A21 IP65 T225℃ T500 320℃

5. 區域設備 22 同 “TD嘅” Type B Dust Explosion-Proof

Explosion-Proof Marking: Ex tD B22 IP65 T170℃

6. 區域設備 22 同 “TD嘅” Type A Dust Explosion-Proof

Explosion-Proof Marking: Ex tD A22 IP54 T120℃