Which area of ​​the LED explosion-proof lights apply

LED explosion-proof light gas place is divided into three areas: 0 area, 1 area and 2 areas:

Zone 0 : The explosive mixture in an explosive atmosphere appears continuously in the form of gases, vapours or mists, or in long-term presence.

Zone 1 : Locations where explosive mixtures of gases, vapours or mists may be present in explosive atmospheres during normal operation. Zone 1 is a typical application of explosion-proof electrical equipment.

Zone 2 : In normal operation, explosive mixtures in the form of gases, vapours, or mists are unlikely to occur in explosive atmospheres and, if present, are only occasionally occurring and short-lived. In general, "short time" refers to a duration of no more than 2 hours.

The LED explosion-proof lamp dust site is divided into three areas: Zone 20, Zone 21, and Zone 22:

Zone 20 : In the normal course of operation, combustible dust continuously or frequently appears in quantities sufficient to form a mixture of flammable dust and air and/or places that may form an uncontrollable and extremely thick layer of dust and inside the container.

Zone 21 : During normal operation, there may be sites where the amount of dust is sufficient to form a mixture of flammable dust and air but not in Zone 20. This area includes sites that are directly adjacent to the charged or discharged dust, where dust layers are present, and where flammable dust and air mixtures are likely to be produced in combustible concentrations under normal operating conditions.

Zone 22 : In exceptional conditions, flammable dust clouds occasionally appear and are present only for a short period of time, or are flammable. Meadow's electrical dust occasionally accumulates or there may be a dust layer and produce a flammable dust air mixture but is not allocated to Zone 21 . If it cannot be ensured that the flammable dust accumulation or dust layer can be excluded, it should be divided into 21 areas.

Explosion-proof LED advantages and performance description:

Midi LED explosion-proof lamps and lanterns refer to lamps designed to prevent ignition of surrounding explosive mixtures such as explosive gas atmospheres, explosive dust atmospheres, and gas gases. One of the most important explosion-proof principles of explosion-proof lighting is to limit the temperature of the surface of the housing in contact with the explosive gas, explosive dust, the surface of the component or electronic component, and to limit the temperature of the electrical contact surface below its minimum ignition temperature or ignition temperature. As the LED is a solid-state cold light source, it has the advantages of high electro-optical conversion efficiency, small heat generation, low power consumption, operating voltage is safe and low voltage, long service life, etc. Therefore, high-power white LEDs are explosion-proof lamps, especially portable explosion-proof lamps. A very ideal light source for lamps. The LED explosion-proof lamp belongs to a kind of electrical equipment used in special industries and mainly solves lighting problems. It includes a lamp housing, a lampshade arranged at the front end of the lamp housing, a luminous body and a battery arranged inside the lamp housing, and a switch arranged on the surface of the lamp housing. The utility model is characterized in that: the luminous body is a high-power LED module, a wide voltage input driving circuit is arranged between the luminous body and the battery; the wide voltage input driving circuit comprises a constant current chip, a constant current chip and a battery, and the power module is composed of LED The module is connected to the constant current chip, the power module and the LED module are sealed together, and the lamp housing and the lamp housing are ultrasonically welded. It uses the characteristics of low heat generation LED to achieve intrinsically safe explosion-proof, and the LED light source has a long life; the LED maintains a constant brightness at the end of full charge and discharge; a heat sink is arranged on the lamp housing to achieve effective heat dissipation of the LED module. It ensures the stability of use and is applicable to various industries such as coal mines, petroleum, railways, and flood control.

Which area of ​​the LED explosion-proof lights apply

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