BAL 防爆电铃(ⅡB) BAL Explosion-Proof Electric Bell (ⅡB) 一、适用范围 1. 爆炸性气体环境危险场所：1区、2区； 2. 可燃性气体、蒸气级别：ⅡA、ⅡB； 3. 温度组别：T1~T6； 4. 户内、户外 (IP54)。1. For the dangerous sites with explosive air mixture: 1 division、2 division; 2. Flammable gas, steam class：ⅡA、ⅡB; 3. Temperatures classification：T1~T6; 4. Indoor and outdoor(IP54). 二、型号含义 三、性能特点1. 铸铝合金外壳，表面喷塑； 2. 圆筒隔爆面，防爆性能好，安全可靠； 3. 钢管或电缆布线。1. Diecasted Al-alloy shell with plastic-sprayed surface; 2. The round-tube flame-proof surface has perect property on safety reliability; 3. Steelpipe and cable wiring.四、技术参数 额定电压 Rated voltage (V)铃盖直径 Bell-lid's diameter (mm) 声响强度 Acoustic strength (dB)功率 Power (W)AC36, AC110, AC220125IP65≥75(R=2m)≤20防护等级 Protection category防爆标志 Explosion-proofing marker 防腐等级 Corrosion-proofing grade进线口螺纹 Inlet's thread电缆外径(mm) Cable's outside diameter质量 Weigh (kg)IP54Ex dⅡBT6W, WF1, WF2G3/4Φ10~Φ15