Kedu ọkwa nke mgbawa-ihe akaebe dị elu, IA ma ọ bụ D

The flameproof aha “d” dabara na ngalaba EPL Gb, nke kwesịrị ekwesị naanị maka gburugburu gas na Mpaghara 1 na 2;

Ụdị ihe mgbawa	Akara mgbawa gas
Ụdị nchekwa nchekwa	ia,ib,i
Ụdị ọkụ	d,db

Nhazi nchekwa dị n'ime “ia” ejikọtara ya na ọkwa kachasị elu, EPL Ga, na-ekpuchi gburugburu gas na Mpaghara 0, 1, na 2;

N'ihi ya, Typedị nchekwa nchekwa nchekwa IA na-enye nchekwa dị mma ma e jiri ya tụnyere ụdị ọkụ ọkụ.