The scope of application
1. Applied to the place which may accumulate the gas of inﬂammable and explosive and each relevant dangerous area, such as ship, petroleum platform, chemical place, coal and other places etc.
2. Applied to the cabins which have inﬂammable and explosive gas, such as the dangerous place of accumulator room, painting room and liquid cargo ship etc.
3. Electrical equipment used in the explosive gas environment is divided into:
I Series: Coal mine electric equipment.
II Series: In addition to the coal mine of other electrical equipment used in the explosive gas environment.
According to the characteristic of the explosive gas, the electric equipment of II category can be divided: ﬂameproof “d” of II category and essence safety “I”, the electric equipment can be divided into IIA, IIB and IIC category, the remarking IIB equipment ﬁt for the use condition of II A’s equipment, the remarking II C equipment ﬁt for the use condition of II A and II B’s equipment.
1. Conform to national standard of GB12045;GB3836-1/2/3/9;GB7000.1;GB19510.4.
2. Conform to China Classification Society GD01 standard.3. Conform to international IEC standard.
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