Mgbawa-Ngosipụta ọkwa nke mgbawa-ihe akaebe krane

Ihe dị iche iche chọrọ maka nhazi ọkwa mgbawa nke cranes na-esite na gburugburu ebe ọkụ na mgbawa dịgasị iche iche. Ihe ndị a chọrọ dabara na isi atọ:

Ụdị ọnọdụ	Nhazi gas	Gas ndị nnọchi anya	Opekempe mgbanye Spark Energy
N'okpuru Mine	I	Methane	0.280mJ
Ụlọ ọrụ ndị dị n'èzí Mine	IIA	Propane	0.180mJ
	IIB	Ethylene	0.060mJ
	IIC	Hydrogen	0.019mJ

1. Klas I nke na-egbochi mgbawa, akpọrọ dị ka Exd I;

2. Klas II ụlọ ọrụ mmepụta ihe na-agbawa cranes, akpọrọ dị ka Exd IIB T4 ma ọ bụ Exd IIC T4;

3. kreenụ na-egbochi mgbawa uzuzu, akpọrọ dị ka DIP A21 TA T4;

N'ime Klas II, cranes na-egbochi mgbawa ahazi dị ka ihe na-egbochi ọkụ “d” na intrisically mma “i” A na-ekewa ya na IIA, IIB, na ọkwa IIC. Cranes nwere akara IIB dabara adaba maka gburugburu IIA, ebe cranes gosiri IIC dabara adaba maka mpaghara IIA na IIB.