Is it to prevent the bulb from exploding or to prevent other things from exploding?
Is to prevent other things from exploding, such lights are usually not used in wells
The gas and steam in the following table is based on this basic rule. Following a variety of gases or vapours with letters: a) MESG b) MIC ratio value grading; grading; c) as well as the determination of MESG were also measured MIC ratio; d) classification of similar chemical structure (preliminary classification) Note: 1 by volume, all methane mixtures containing 15% or less hydrogen should be included in the "industrial use of methane". 2 carbon monoxide can contain enough moisture in order to saturate carbon monoxide and air mixtures in a standard environment. Not included in the table can be classified according to the gas of MIC and MESG, but must pay attention to its special properties (e.g. according to MIC and MESG in C class II, but it's too large explosion pressure of hydrogen and methane, should be listed in the C II) want to know more details please visit the website tormin explosion of knowledge.
The explosion-proof lamp is used for dangerous places exist combustible gas and dust, to prevent the lamp may produce arc, spark ignition and high temperature surroundings of combustible gas and dust, so as to achieve the requirements of explosion-proof lamps. Different flammable gas mixture environment has different requirements for explosion proof grade and explosion proof form of explosion proof lamp.
