LED explosion -proof light is a type of explosion -proof light. The principle is the same as the traditional light source explosion -proof light, but the light source is the LED light source, which refers to the in order to prevent the surrounding explosive mixture such as explosive gas environment, explosive dust environment, gas gas, etc. Lights with specific measures. LED explosion -proof lamps are currently the most energy -saving explosion -proof lamps, which are widely used in oil fields, power plants, chemical plants, oil, and troops.

Classification of explosion -proof lamps
1. The explosion -proof lamps’ explosion -proof categories, grades and temperature groups see national standards.
2. It is divided into five main types: explosion -proof type, increased safety, positive pressure type, sparkless and dust -proof explosion -proof type. It can also be combined or compounded and special types of explosion -proof type and the above -mentioned explosion -proof type and the above -mentioned explosion -proof type. Essence
3. According to the anti -electrical protection type, it can be divided into Class Ⅰ, Ⅱ, and III. In order to prevent explosion -proof lamps from being easily touched by parts of the parts, the conductor of the human body shocked or different potentials touches the electric spark to ignite the explosive mixture.
Class A Ⅰ -On the basis of basic insulation, the non -charged conductive components that are not charged when they touch the normal work are connected to the protective ground conductor in a fixed line.
Class BI Ⅱ —— Use dual insulation or enhanced insulation as safety protection measures, without ground protection.
Class C Ⅲ -The safety voltage of the effective value is not greater than 50V, and it will not generate higher than this voltage value.
Class D0 -relied on basic insulation as security measures. Most of the explosion -proof lamp anti -electrical protection types are Class I lamps, and only a few are class Ⅱ and III lamps. For example: full -plastic explosion -proof lamps, explosion -proof flashlights.

4. Classification according to the protective level of the shell: In order to protect the dust, solid foreign body and water into the lamp cavity, touch or gather on the band -tie components to generate danger, short -circuit or damage electrical insulation, and there are multiple shell protection methods to protect electrical insulation to protect electrical insulation. The role. Use the characteristic letter “IP” to characterize the protection level of its shell after two numbers. The first number represents the protection of people, solid foreign bodies or dust. Divided into level 0-6. Explosion -proof lamps are a sealing lamp. Its dustproof capacity is at least 4 or more. The second number represents the protection of water, divided into 0-8.
5. Classification of support surface materials designed by lamps: indoor explosion -proof lamps may be installed on many walls and ceilings that belong to the surface of ordinary combustible materials, such as wooden walls and ceiling.
Depending on whether the explosion -proof lamps can be directly installed on the surface of ordinary combustible materials, it can be divided into 2 categories: one is a lamp that is only suitable for installed on non -combustible surfaces. The other is a lamp that is suitable for the surface of ordinary combustible materials, with labeling symbols.

6. It can be divided into fixed, migrant, portable

Nameplate logo

A explosion -proof logo.
B basic logo: including product name, model, manufacturer name, registered trademark, factory date, etc.
C Performance Safety Logo: Including rated voltage, current, nominal frequency, light source power and quantity, allowing environmental temperature (this range is only -20 ～+40 ℃, it can not be marked), specific applicable environmental signs (such as only one applicable to a certain amount of some one is applicable A product of an explosive gas mixture must indicate the name or molecular formula of the combustible gas), the classification signs (such as “numbers), etc.
D Explosion -proof certificate number, proves that the product has been formally inspected and passed. Some products have the “X” symbol after the explosion -proof certificate number, which indicates that this product can only be used under certain special safe use conditions. The specified conditions should be clearly stated in the lamp shell or product manual.

Additional information:
In addition to the above tags, in order to ensure the detailed instructions necessary for the correct installation, use and maintenance, they should be given on the product manuals of the manufacturer on the lamps, interior or interior, or the manufacturer in the manufacturer provided with the lamp.
For example:
A explosion -proof lamps are allowed to work positions. Some explosion -proof lamps are allowed to be installed and used within a certain position or a certain angle. This is because of changes in work pulling. Therefore, the main reason for the limitation of the working location of explosion -proof lamps is to control the highest surface temperature, so that it does not allow it to exceed the temperature group marked by the explosion -proof lamps itself, and generate a dangerous temperature. In addition, changes in the working location will also affect the life and performance of some light sources, and will affect the insulation materials, electrical components, different lines of insulation, and life. Therefore, explosion -proof lamps with restrictions on the installation location must be clearly stated.

B In order to reduce the highest surface temperature of explosion -proof lamps and reduce product temperature grouping levels, the explosion -proof lamps with special specifications of light sources must indicate the name, model, shell shape and size of the light source, and production plants. If it is not indicated that when users switch to other light bulbs with the same power, the highest surface temperature of the explosion -proof lamps may exceed the ignition temperature of the explosive gas mixture in the bad field, forming a risk of explosion.
C under the most unfavorable conditions for normal work, the insulating material of the power cable or wire is subject to the highest temperature in the lamp. If it exceeds 80t, it should be marked to select the corresponding cables and wires. When there are special requirements for the introduction of cables or wires, specifications, models and applicable temperatures need to be indicated.
D lamps with batteries must show the types of batteries, nominal voltage and nominal capacity, so as not to cause losses and dangers.
E explosion -proof lamps with concentration and similar properties should indicate the shortest distance from the object to the subject to prevent the objects from being burnt and burning.
F’s rated maximum operating temperature TΩ (C), the rated maximum working temperature of the capacitor TC (C), the wiring diagram