Why can explosion proof lamp be explosion-proof?
Mainly flameproof, that is, even in the lamp inside the explosion, the lamp will not be blown, and the spark will not splash outside
In addition to flameproof lamps, there is an increase of safety type explosion-proof lamps, the shell is increased safety type, or DMC plastic material.Fluorescent lamps are used for explosion-proof lamp tubes, explosion-proof ballasts, as well as open lid interlocking power off devices.The lamp with E27/E40 lamp holder must be in accordance with the explosion-proof porcelain lamp holder, and there is a flameproof chamber in the lamp holder.Free metal sodium lamp shall not be used.
Classification of explosion proof lampsExplosion proof lamp is generally classified according to the selected light source, explosion-proof structure, and mode of use. According to the source classification of incandescent lamp, high-pressure mercury lamp, explosion-proof explosion-proof low-voltage fluorescent lamp, mixed light lamp; according to the classification of structure type of explosion-proof flameproof type lamps, increasesafety lamps, composite type lamps etc.; to use classified fixed explosion-proof lamp and portable explosion-proof lamp.Applicable range of explosion proof lamp1., suitable for explosive gas environment, 1 zone, 2 zone dangerous place;2. applies to IIA, IIB, IIC explosive gas environment;3. suitable for flammable dust environment, zone 20, zone 21, zone 22;4. applies to the temperature group T1 - T6 environment.
Explosion proof principle of explosion proof lampThe explosion-proof lamp is a kind of electrical equipment with explosion-proof enclosure, if the explosive gas mixture into the explosion-proof enclosure and ignited, explosion-proof enclosure can withstand internal explosive gas mixture explosion pressure, and prevent the explosion inside the shell to the explosive mixture spread around. This is a gap explosion-proof principle, propagation and cooling of explosion products using metal gap can prevent explosion flame temperature of flame out and cooling, a structural design principle of explosion suppression expansion.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. Also known as explosion-proof lamps, explosion-proof lighting. Different flammable gas mixture environment has different requirements for explosion proof grade and explosion proof form of explosion proof lamp.
