LED explosion-proof lamps are special lighting fixtures, and their working principle is the same as that of ordinary explosion-proof lamps. special measures. LED explosion-proof lamp is a new type of energy-saving explosion-proof lamp on the market.

    A very important explosion-proof principle of LED explosion-proof lamps is to limit the temperature of the surface of the shell, the surface of parts or the surface of electronic components in contact with explosive gas and dust, so that the temperature of the electrical contact surface is lower than the minimum ignition temperature or ignition temperature. Outdoor use of LED explosion-proof lights, need to use waterproof driver. LED explosion-proof lights need to be shockproof when used in gas stations!

    Classification of explosion-proof lamps.

    1. The explosion-proof category, grade and temperature of explosion-proof lamps and lanterns are specified in national standards.

    2. According to the explosion-proof type, it is divided into five main types: flameproof type, increased safety type, positive pressure type, non-sparking type and dust explosion-proof type. There are also other explosion-proof types and combinations of the above-mentioned explosion-proof types or composite types and special types. type.

    3. The types of protection against electric shock can be divided into four categories. The protection against electric shock is to prevent the explosion-proof light box from easily contacting the electrification of the parts, so that the electric shock of the human body and the contact of conductors with different potentials generate electric sparks and ignite the explosive mixture.

   Category 1 - On the basis of basic insulation, easily accessible conductive parts that are not energized in normal operation are connected to the protective earth conductor of the fixed line.

    The second category - double insulation or reinforced insulation as safety protection measures, no grounding protection.

    Category 3 - Use a safe voltage with an effective value below 50v, where no voltage above that value is generated.

    Category 4 - Relying only on basic insulation as a safety precaution. Most of the explosion-proof lamps and lanterns have anti-shock protection models of Class I lamps, and only Class II and Class II lamps. For example, all-plastic explosion-proof lamps, explosion-proof flashlights and so on.

    4. Classified according to the protection level of the shell: in order to prevent dust, solid foreign objects and water from entering the lamp cavity, contacting or accumulating on live parts and causing dangers such as flashover, short circuit or damage to electrical insulation, a variety of shell protection methods are used to protect electricity. The role of insulation. Use the two numbers after the characteristic letter IP to express the degree of protection of the housing. According to the protection ability of flammable objects or dust, it is divided into 0-6 grades. The explosion-proof lamp is a sealed lamp, and its dustproof capacity is at least grade 4. The second number indicates the waterproof ability, which is divided into grades 0-8.