粉尘防爆设备防爆标志

1. 区域设备 20 和 “米德” Dust Explosion-Proof Type

Explosion-Proof Marking: 防爆mD 20 T120℃

2. 区域设备 20 和 “ia” 灰尘 Explosion-Proof Type

Explosion-Proof Marking: 防爆 20 T120℃

3. 区域设备 21 和 “压力” Dust Explosion-Proof Type

Explosion-Proof Marking: 爆炸pD 21 IP65 T120℃

4. 区域设备 21 和 “tD” Type A Dust Explosion-Proof; 温度 Testing Conducted Under 500mm Thick Dust Layer

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

5. 区域设备 22 和 “tD” Type B Dust Explosion-Proof

Explosion-Proof Marking: Ex tD B22 IP65 T170℃

6. 区域设备 22 和 “tD” Type A Dust Explosion-Proof

Explosion-Proof Marking: Ex tD A22 IP54 T120℃