YUANNENGJI LED explosion-proof lamp explosion-proof type is an explosion-proof type that takes measures to allow internal explosion and prevent flame explosion. It is the most commonly used explosion-proof type. Because the shell of this type of explosion-proof lamp is generally made of metal material, it has good heat dissipation, high shell strength and good durability, and is very popular with users. U dodatku, many parts of increased safety explosion-proof lamps, such as lamp holders and interlock switches, also adopt explosion-proof structures. Electrical equipment with explosion-proof shells is called explosion-proof electrical equipment.
If an explosive gas mixture enters the explosion-proof shell and is ignited, the explosion-proof shell can withstand the explosion pressure of the internal explosive gas mixture and prevent the internal explosion from spreading to the explosive mixture around the shell. This is a gap explosion-proof principle, that is, a structure designed based on the principle that the metal gap can prevent the spread of the explosion flame and cool the temperature of the explosion product, thereby extinguishing the flame and cooling the temperature, and inhibiting the expansion of the explosion.
The so-called LED explosion-proof lamp is relative to the traditional explosion-proof lamp. It is also a kind of explosion-proof lamp. Its light source is essentially a light-emitting diode, which can directly convert electrical energy into light energy. It is energy-saving, easy to control, and has a long life. Compared with traditional lamps, LED explosion-proof lamps can be said to be maintenance-free explosion-proof lamps.
LED explosion-proof lamps are widely used in explosive places where flammable and explosive gases or dust exist, and escort the industrial lighting safety of these special places.
The illumination range of the lamp is uniform, and the illumination angle can reach 220 degrees, which makes full use of the light; the light is soft and glare-free, which will not cause eye fatigue to the operator and improve work efficiency. The light source uses the brightest LED in the world with low power consumption.
All key components of the power supply are selected, which are efficient and stable. The heat dissipation structure is adopted, and the heat conduction method is adopted to accelerate the heat conduction, effectively ensure the efficient heat dissipation of the LED, and extend the life of the LED. The explosion-proof type has a high explosion-proof grade and can be used in flammable and explosive places in various industries.
According to the explosion-proof type, there are mainly 5 types: flameproof type, increased safety type, positive pressure type, spark-free type, and dust explosion-proof type. According to the type of protection against electric shock, it can be divided into I, II, and Il categories. Protection against electric shock is to prevent the easily accessible parts of the explosion-proof lamp housing from being charged, causing electric shock to the human body or the contact of conductors with different potentials to produce electric sparks and ignite explosive mixtures.
Al level——Only on the basis of basic insulation, the easily accessible conductive parts that are not charged during normal operation are connected to the protective grounding conductor in the fixed line.
BI level——Double insulation or reinforced insulation is used as a safety protection measure, and no grounding protection is provided.
D0 level——Only basic insulation is relied on as a safety protection measure. The vast majority of explosion-proof lamps are Class I lamps with protection against electric shock, and only a few are Class I and Il lamps. Na primer: all-plastic explosion-proof lamps, explosion-proof flashlights. Classification by shell protection level: In order to prevent dust, solid foreign matter and water from entering the lamp cavity, touching or accumulating on the live parts, causing sparks, short circuits or damage to electrical insulation, there are various shell protection methods to protect electrical insulation.
The characteristic letters “IP” followed by two numbers are used to characterize its shell protection level. The first number indicates the protection against people, solid foreign objects or dust, which is divided into 0-6 levels. Explosion-proof lamps are sealed lamps with a dustproof capacity of at least 4 levels. The second number indicates the protection against water, which is divided into 0-8 levels. It adopts high-tech surface spraying technology, which is wear-resistant, corrosion-resistant, waterproof and dust-proof, and suitable for various harsh environments.
When LED explosion-proof lamps are used as floodlights: adding a condenser on the surface of the light source can increase the irradiance of the floodlight.