What is explosion-proof lighting
2023-12-17 09:09:02
Explosion-proof lamps and lanterns are used in hazardous locations where flammable gases and dust are present, and can prevent arcs, sparks, and high temperatures that may be generated inside the lamp from igniting flammable gases and dust in the surrounding environment, thereby reaching the explosion-proof requirements. There are explosion-proof explosion-proof lamps, safety explosion-proof lamps, mobile explosion-proof lamps and so on. The BC9300 explosion-proof platform light produced by Tongming Electric is suitable for lighting in petrochemical installations, oil platforms, gas stations, oil pump rooms, transfer stations and other flammable and explosive places.
Zone 1 and Zone 2 explosive gas atmospheres. District 21, 22 flammable dust environment.
Classification 1. According to the explosion-proof type, it can be divided into 5 types: explosion-proof, increased safety, positive pressure, non-sparking and dust explosion-proof. It can also be combined by other explosion-proof types and the above-mentioned various explosion-proof types or composite type and special type. .
2. Explosion-proof lighting explosion-proof categories, levels and temperature groups see the provisions of national standards 3. According to the type of protection against electric shock can be divided into I, II, III category. The protection against electric shock is to prevent the explosion-proof lamp housing from being easily touched and the parts are electrified, so that the human body is exposed to electric shock or conductors with different potentials to generate electric sparks and ignite the explosive mixture. AI class—On the basis of basic insulation, accessible conductive parts that are not energized during normal operation are connected to the protective ground conductor in the fixed line.
Class BII - Use double insulation or reinforced insulation as a safety measure without grounding protection.
Class CIII - Use a safe voltage with an effective value of not more than 50V, and no voltage above it will be generated. Category D0 - only rely on basic insulation as a safety protection measure.
Most of the explosion-proof lamps and lanterns are protected against electric shock and they are Class I and only a few are Type II and Type III lamps. For example: all plastic explosion-proof lamps, explosion-proof flashlight Jane.
4. According to the lighting design of the supporting surface material classification: indoor explosion-proof lighting may be installed on many ordinary surface of combustible materials, such as wooden walls and ceilings, they do not allow explosion-proof lighting installation surface temperature exceeds the safety value. According to whether explosion-proof lamps can be installed directly on the surface of ordinary combustible materials, they can be classified into two categories.
One category is lamps that are only suitable for installation on non-flammable surfaces.
5. Classified according to the protection class of the enclosure: In order to protect the dust, solid foreign matter and water from entering the lamp cavity and touching or accumulating on the live parts to cause flashover, short circuit or damage to the electrical insulation, there are a variety of enclosure protection methods to protect the electrical Insulation effect. The characteristic letter “IP†followed by two digits is used to characterize its enclosure protection level. The first number indicates the protection against humans, solid objects or dust. Divided into 0-6 levels. Explosion-proof lamps are sealed lamps. Their dust-proof capacity is at least 4 levels. The second number represents the protection against water and is divided into 0-8 grades.
The other category is lamps that are suitable for direct installation on the surface of ordinary combustible materials and are marked with symbols.
6. According to the use of the installation can be divided into fixed, portable, portable. Principles of explosion-proof type According to the explosion-proof concept and fire type of the European standard EN13463-1:2002 "Non-electrical equipment for explosive atmospheres Part 1: Basic methods and requirements", the flameproof type is to take measures to allow internal explosion and prevent flame propagation. Explosion-proof type, is the most commonly used type of explosion-proof. Since the explosion-proof type lamp housing is generally made of a metal material, the heat dissipation is good, the strength of the housing is high and the durability is good, and it is very popular with users. Moreover, many increased safety explosion-proof lighting components, such as lamp holders, interlock switches, etc., are also flameproof structures. An electrical device with a flameproof enclosure is called a flameproof electrical device. If the explosive gas mixture enters the flameproof enclosure and is ignited, the flameproof enclosure can withstand the explosive pressure of the internal explosive gas mixture and prevent the internal explosion from propagating to the explosive mixture around the enclosure. This is a kind of clearance explosion-proof principle, that is, a structure designed by using the metal gap to prevent the propagation of the explosion flame and cool down the temperature of the explosion product, achieve flame extinction and temperature reduction, and suppress the expansion of the explosion principle. Yueqing Youguang Lighting Co., Ltd. High-quality explosion-proof lighting manufacturer.
Zone 1 and Zone 2 explosive gas atmospheres. District 21, 22 flammable dust environment.
Classification 1. According to the explosion-proof type, it can be divided into 5 types: explosion-proof, increased safety, positive pressure, non-sparking and dust explosion-proof. It can also be combined by other explosion-proof types and the above-mentioned various explosion-proof types or composite type and special type. .
2. Explosion-proof lighting explosion-proof categories, levels and temperature groups see the provisions of national standards 3. According to the type of protection against electric shock can be divided into I, II, III category. The protection against electric shock is to prevent the explosion-proof lamp housing from being easily touched and the parts are electrified, so that the human body is exposed to electric shock or conductors with different potentials to generate electric sparks and ignite the explosive mixture. AI class—On the basis of basic insulation, accessible conductive parts that are not energized during normal operation are connected to the protective ground conductor in the fixed line.
Class BII - Use double insulation or reinforced insulation as a safety measure without grounding protection.
Class CIII - Use a safe voltage with an effective value of not more than 50V, and no voltage above it will be generated. Category D0 - only rely on basic insulation as a safety protection measure.
Most of the explosion-proof lamps and lanterns are protected against electric shock and they are Class I and only a few are Type II and Type III lamps. For example: all plastic explosion-proof lamps, explosion-proof flashlight Jane.
4. According to the lighting design of the supporting surface material classification: indoor explosion-proof lighting may be installed on many ordinary surface of combustible materials, such as wooden walls and ceilings, they do not allow explosion-proof lighting installation surface temperature exceeds the safety value. According to whether explosion-proof lamps can be installed directly on the surface of ordinary combustible materials, they can be classified into two categories.
One category is lamps that are only suitable for installation on non-flammable surfaces.
5. Classified according to the protection class of the enclosure: In order to protect the dust, solid foreign matter and water from entering the lamp cavity and touching or accumulating on the live parts to cause flashover, short circuit or damage to the electrical insulation, there are a variety of enclosure protection methods to protect the electrical Insulation effect. The characteristic letter “IP†followed by two digits is used to characterize its enclosure protection level. The first number indicates the protection against humans, solid objects or dust. Divided into 0-6 levels. Explosion-proof lamps are sealed lamps. Their dust-proof capacity is at least 4 levels. The second number represents the protection against water and is divided into 0-8 grades.
The other category is lamps that are suitable for direct installation on the surface of ordinary combustible materials and are marked with symbols.
6. According to the use of the installation can be divided into fixed, portable, portable. Principles of explosion-proof type According to the explosion-proof concept and fire type of the European standard EN13463-1:2002 "Non-electrical equipment for explosive atmospheres Part 1: Basic methods and requirements", the flameproof type is to take measures to allow internal explosion and prevent flame propagation. Explosion-proof type, is the most commonly used type of explosion-proof. Since the explosion-proof type lamp housing is generally made of a metal material, the heat dissipation is good, the strength of the housing is high and the durability is good, and it is very popular with users. Moreover, many increased safety explosion-proof lighting components, such as lamp holders, interlock switches, etc., are also flameproof structures. An electrical device with a flameproof enclosure is called a flameproof electrical device. If the explosive gas mixture enters the flameproof enclosure and is ignited, the flameproof enclosure can withstand the explosive pressure of the internal explosive gas mixture and prevent the internal explosion from propagating to the explosive mixture around the enclosure. This is a kind of clearance explosion-proof principle, that is, a structure designed by using the metal gap to prevent the propagation of the explosion flame and cool down the temperature of the explosion product, achieve flame extinction and temperature reduction, and suppress the expansion of the explosion principle. Yueqing Youguang Lighting Co., Ltd. High-quality explosion-proof lighting manufacturer.
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