Plahvatuskindla kraana plahvatuskindel tase

Different requirements for explosion-proof classifications of cranes arise from varying flammable and explosive environments. These requirements fall into three main categories:

Tingimus Kategooria	Gaasi klassifikatsioon	Representatiivsed gaasid	Minimaalne süttimise energia
Under The Mine	I	Metaan	0,280mJ
Tehased väljaspool kaevandust	IIA	Propaan	0,180mJ
	IIB	Etüleen	0,060mJ
	IIC	Vesinik	0,019mJ

1. Class I explosion-proof cranes, designated as Exd I;

2. Class II industrial explosion-proof cranes, designated as Exd IIB T4 or Exd IIC T4;

3. Dust explosion-proof cranes, designated as DIP A21 TA T4;

Within Class II, explosion-proof cranes categorized as flameproof “d” and iseenesest ohutu “i” are classified into IIA, IIB, and IIC levels. Cranes with an IIB rating are appropriate for IIA environments, whereas cranes rated IIC are suitable for both IIA and IIB environments.