型号含义：
BAY51  -                                                                                                                                                                                          

                                                                          Dip:粉尘防爆
                                                                          Y-荧光灯
                                                                          J-应急（不带不注）
                                                                          E-配电子整流器
                                                                          R-配电感镇流器。
                                                                          g-吊杆式
                                                                          x-吸顶式
                                                                          b1-壁式30度
                                                                          b3-壁式60度
                                                                          d-吊链式。
                                                                          t-可调式
                                                                          h-护栏式
                                                                          f-法兰式
                                                                          D-单管
                                                                          S-双管。

适用范围，
1：1区?2区危险场所或20区。21区危险场所。
2：IIA,IIB,IIC性气体环境或可燃粉尘环境。
3：户内。户外（IP54,IP65）.
4:温度组别，T1~T4/T5,T6;
5:适用于石油，化工，航天，纺织，军工等危险场合。

产品特点：
1：壳体采用高强度SMC磨具压成型，灯罩采用透光性能好，耐强冲击聚碳酸脂压铸成型。
2：外壳采用密封结构，具有良好的防水防尘方强腐蚀等性能。
3：可根据客户要求配置应急装置，当外界断电时，灯具自动切换应急照明状态。
4：钢管布线。
技术参数：
1:电压：220V，防爆等级：ExdIIBT6/CT6,,防护等级：IP54/55防腐等级：IP55.