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By certification 
Explosion proof bridge crane refers to the lifting equipment which will be operated in explosive gas or explosive dust environment, the crane design should consider explosion-proof characteristics on the motors, electrical control panels, etc.
The explosion-proof bridge crane used in explosive environment to which this standard applies, its gas storage equipment shall comply with the regulations of GB 3836.1-2010, which can be divided into Class II and III:
Class II: Explosion proof bridge crane for explosive gas environment other than coal mine gas:
Class II explosion-proof bridge cranes can be further divided into Class IIA, IIB and IIC explosion-proof cranes according to the type of explosive gas environment they are intended to use
Class III: Explosion proof bridge crane for explosive dust environment other than coal mine.
Class III explosion-proof bridge cranes can be further divided into Class IlIA, IIIB and IIIC explosion-proof cranes according to the characteristics of the explosive dust environment to be used. IIlA explosive dust is combustible flying flocs; Class IIIB explosive dust is non-conductive dust; Class IIIC explosive powder
Hazardous Area
|
Max. surface temp. |
Temp. Class |
|
（℃） |
IEC79-8 |
|
450℃ |
T1 |
|
300℃ |
T2 |
|
200℃ |
T3 |
|
135℃ |
T4 (T4: Default class) |
|
100℃ |
T5 |
|
85℃ |
T6 |
● Heavy duty motor
● Up to IIC
● IP65 and H Insulation
● 60%ED rating
● Over heating protection
● Overloading protection
● Maintenance free
● Festoon system with C profile rail
● Complete rubby and round-form cable
● Plastic cable trolley
● 2-step limit switches (Bridge and trolley)
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