About explosion-proof led tube
About explosion-proof led tube To replace traditional fluorescent tubes, aluminum-plastic LED tubes with good quality can be replaced, but there are also requirements. PC covers have material requirements. You can consult Shenzhen Langte Lighting, they have done it. However, ordinary LED lights are not recommended for safety reasons.
One of the reasons, although many LED manufacturers use aluminum shells for LED lamps, and aluminum shells are easy to dissipate heat, have a beautiful appearance, and are light in weight.
The second reason, but another common LED lamp housing is a plastic housing. Due to the low cost of plastic shells, some low-end LED lamps will use plastic shells. However, the plastic shell is not easy to dissipate heat, and when the plastic is heated, it is also easy to melt and sublimate to produce harmful gases. Therefore, Europe, North America, and Japan do not use plastic enclosures. Due to the large-volume demand for cheap LED lights in some parts of the country, plastic housings are sold in large quantities in the country.
The third reason is that I don’t recommend ordinary LED tubes. After all, production safety issues are very important.
Adopt the requirements for explosion-proof led tube
The shell is made of ABS engineering plastic or aluminum alloy, and the surface is specially sealed and sprayed. Equipped with tempered glass lampshade, it can achieve good optical effect; to ensure the sturdiness and durability of the lamp: the installation electrical board is made of movable sprayed steel plate, which makes installation and maintenance easier; the lamp body has a wire hole at one end and is equipped with The wiring tube is also equipped with dedicated terminal blocks, which is convenient for power wiring, and can be better waterproof, dust-proof and corrosion-proof; for wall-mounted, ceiling-mounted and ceiling-mounted installations, according to the lighting needs of different work sites, the corresponding installation methods are adopted , Make the installation and maintenance easier; use high-brightness SMD LED as the luminous body, high-conductivity and high-conductivity aluminum substrate/PCB board as the substrate, and the power supply is a built-in constant voltage and constant current source to ensure the service life of the LED;
Explosion-proof LED tube specifications: single-tube LED explosion-proof tube and dual-tube LED explosion-proof tube, you can choose; lengths are: 600MM, 900MM, 1200MM, etc. for you to choose; luminous color: white light, color temperature: 2700-10000K , You can choose every 300K wavelength; Working voltage: AC90~240V, working frequency: 50Hz or 60Hz; Lamp types: T5, T8 can let you choose;
At the same time, it has the characteristics and advantages of LED fluorescent lamps, as well as: anti-corrosion function WF2 level, shell protection level: IP65. The explosion-proof grades are: Exde II BT4-BT6. It can be used for a long time in high temperature, humidity and various corrosive environments; tempered glass lampshade, high luminous flux, energy saving, environmental protection and other advantages.
The shell adopts high-tech surface spraying technology, wear-resistant, corrosion-resistant, waterproof and dustproof, suitable for various harsh environments.
When the led explosion-proof lamp is used as a floodlight: add a condenser cover to the surface of the light source to increase the irradiance of the floodlight.
The led explosion-proof lamp is used as the explosion-proof lamp in the winery: it should be designed with a road seal; an explosion-proof intrinsically safe type; protection level IP65, anti-corrosion level WF1, waterproof, dustproof, and explosion-proof.
The led explosion-proof lamp is used as an oilfield explosion-proof lamp: it should be designed with an anti-falling ring; the oilfield derrick should be vibrated to prevent the lamp from falling off because of the bolt falling off, and the anti-falling ring is protected and will not fall.
Selection attention:
. The explosion-proof structure type of the explosion-proof lamp should be determined according to the regional grade and scope of the explosive gas environment. For example, explosion-proof lamps must be used within the scope of zone 1; fixed lamps in zone 2 can be explosion-proof and increased safety types, and mobile lamps must Use explosion-proof type. The level or group of the selected explosion-proof lamp should not be lower than the level and group of the explosive mixture in the explosive environment. At the same time, the impact of the environment on the explosion-proof lamp should be considered, and the requirements of various environments such as ambient temperature, air humidity, corrosive or polluting substances should be met. The protection level and anti-corrosion level of the lamps should be selected according to different environmental requirements. Especially when there is corrosive gas in explosive gas environment, it is very important to choose lamps with corresponding anti-corrosion performance.
One, classification
Explosion-proof lamps are generally classified according to the selected light source, explosion-proof structure type, and use mode. According to the light source classification, there are explosion-proof incandescent lamps, explosion-proof high-pressure mercury lamps, explosion-proof low-voltage fluorescent lamps, mixed light sources, etc.; according to the explosion-proof structure type, there are explosion-proof lamps, increased safety lamps, composite lamps, etc.; according to the method of use, there are fixed Type explosion-proof lamps and portable explosion-proof lamps.
Type
According to the explosion-proof type, it is divided into 5 main types: explosion-proof type, increased safety type, positive pressure type, non-sparking type and dust explosion-proof type. It can also be composed of other explosion-proof types and the above-mentioned explosion-proof types combined or composite and special types. .
Second, the protection level
Classified according to the protection level of the enclosure: In order to prevent dust, solid foreign matter and water from entering the lamp cavity, touching or accumulating on live parts, causing flashover, short circuit or damage to electrical insulation, there are multiple enclosure protection methods to protect the electrical The role of insulation. Use the characteristic letter "IP" followed by two numbers to characterize the enclosure protection level. The first number indicates the ability to protect against people, solid foreign objects or dust. Divided into 0-6 levels. Explosion-proof luminaire is a kind of sealed luminaire, its dustproof ability is at least 4 or above. The second number indicates the water protection ability, which is divided into 0-8 grades.
Three, examples of explosion-proof signs
1. If the electrical equipment is Class ⅡB explosion-proof T3 group, the mark is ExdⅡBT3.
2. If the electrical equipment is of class II increased safety type, the temperature group is T2 group, and the mark is ExeⅡT2.
3. If the electrical equipment adopts more than one composite type, mark the explosion-proof type of the main body first, and then mark other explosion-proof types. If the main body adopts the increased safety type with built-in Class II C explosion-proof components, the temperature group is T4, and the mark is Exed II CT4 .
4. If the electrical equipment is dust-proof and dust-proof T11 group. The mark is: DIPDPT11.
