What is an explosion-proof lamp?
Explosion-proof headlamps are lamps that are used in dangerous places where combustible gases and dust are present and can prevent arcs, sparks and high temperatures that may be generated inside the lamp from igniting combustible gases and dust in the surrounding environment so as to meet the requirements of explosion-proof.
There are two reasons for electrical equipment to ignite combustible gas mixtures: one is sparks and arcs generated by electrical equipment, and the other is heat on the surface of electrical equipment (that is, the surface in contact with the combustible gas mixture). The parts that can generate arcs and sparks during normal operation of the equipment are placed in the flameproof enclosure, or other explosion-proof types such as encapsulation type, sand-filled type, oil-filled type, or positive pressure type can be used to achieve the purpose of explosion-proof.
For increased-safety electrical equipment, it is the equipment that does not produce arcs, sparks and dangerously high temperatures during normal operation. If some protective measures are taken on its structure, try to make the equipment, not under normal operation or approved overload conditions. The occurrence of electric arcs, sparks, and overheating can further improve the safety and reliability of the equipment. Therefore, this equipment has no ignition source during normal operation and can be used in an explosive environment.
What is the difference between tri-proof headlamps and explosion-proof headlamps?
The difference between a three-proof headlamp and an explosion-proof headlamp is as follows:
Three-proof lights refer to anti-corrosion, dustproof, and waterproof. Some explosion-proof lights also have three-proof characteristics, and three-proof lights are also explosion-proof (with explosion-proof certification), as long as they have various qualification certifications.
What is the difference between LED explosion-proof headlamps and ordinary light sources?
Explosion-proof LED lights can be used in hazardous locations.
LED is the abbreviation of the light-emitting diode in English. Its basic structure is an electroluminescent semiconductor material chip, which is cured on the bracket with silver or white glue, and then connects the chip and the circuit board with silver or gold wires. The surroundings are sealed with epoxy resin to protect the inner core wire. Finally, the outer shell is installed, so the LED lamp has good seismic performance. The application areas involve the production of daily home appliances and machineries such as mobile phones, desk lamps, and home appliances. As a new type of lighting source, LED energy-saving lamps are favored by the majority of people and supported by the country for their remarkable characteristics of energy-saving, health, environmental protection and long life.
The incandescent lamp is an electric light source that energizes and heats the filament to an incandescent state and uses thermal radiation to emit visible light. Since 1879, American inventor Thomas Alva Edison made a carbon fiber (carbon filament) incandescent lamp. Through continuous improvements in filament materials, filament structure, and filling gas, the luminous efficiency of the incandescent lamp has also increased accordingly. In 1959, the United States developed tungsten halogen lamps with extremely small volumes and light decay based on incandescent lamps. The development trend of incandescent lamps is mainly to develop energy-saving bulbs. Incandescent lamps with different uses and requirements have different structures and components. The light color and light collection performance of the incandescent lamp is very good, but because of the low light efficiency, it has gradually withdrawn from the production and sales links.
What is the difference between ordinary civilian fishing headlamps and explosion-proof miner's lamps?
Ordinary civilian fishing headlamps can only be used in safe places where no flammable and explosive gases are present; explosion-proof miner's lamps can be used in coal mines and safe places where no flammable and explosive gases are present. It cannot be used in the hazardous ground where flammable and explosive gases are present.
What is the difference between explosion-proof headlamps and ordinary fluorescent lamps?
Difference: The explosion-proof lamp is equipped with a glass lampshade and a sealing ring, which can be waterproof, dustproof and prevent flammable gas from entering. The explosion-proof lamp has an obvious explosion-proof electrical certificate number, and the lamp shell is also cast with an explosion-proof mark. Ordinary fluorescent lamps can only be used in ordinary places without water, dust, flammable gas, etc., and have a simple structure.
1.Explosion-proof lamp refers to a lamp used in dangerous places where flammable gas and dust exist and can prevent the arc, spark and high temperature that may be generated inside the lamp from igniting the flammable gas and dust in the surrounding environment so as to meet the requirements of explosion-proof. Also known as explosion-proof lamps, explosion-proof lighting. Different flammable gas mixture environments have different requirements for the explosion-proof grade and explosion-proof form of the explosion-proof lamp.
Scope of application
1.It is suitable for hazardous locations in zone 1 and zone 2 of the explosive gas environment; 2. 2. Suitable for IIA, IIB, IIC level explosive gas environment; 3. 3. Applicable to areas 20, 21 and 22 of combustible dust environment; 4. It is suitable for the environment where the temperature group is T1-T6.
2.Fluorescent lamps are also known as fluorescent lamps. Traditional fluorescent lamps are low-pressure mercury lamps. They use low-pressure mercury vapor to release ultraviolet rays after being energized so that the fluorescent powder emits visible light. Therefore, it is a low-pressure arc discharge light source. In 1974, Philips in the Netherlands first successfully developed a phosphor that would emit red, green and blue light-sensitive to the human eye. The development and application of three primary colors (also known as three primary colors) phosphors is an important milestone in the development history of fluorescent lamps.
(1) In any case, thin tube diameter (tube diameter≤26mm) tubes, namely T8, T5 and other types, should be used instead of T12 tubes, which has obvious energy-saving and environmental protection effects.
(2) Under any circumstances, three-primary-color fluorescent lamps should be used, and halogen-powder fluorescent lamps should no longer be used. The tri-color tube has the advantages of high luminous efficiency, good color rendering and long life. Although the price is high (about twice as expensive), but because of its high luminous efficiency, it not only saves energy and reduces operating costs; and because the number of lamps used is reduced, the cost of lamps and ballasts is saved, which makes the lighting system more expensive. The total initial construction cost is reduced.
(3) Use high-power lamps: In functional lighting places (except for decorative requirements), long lamps no less than 4 feet (approximately 1200mm) should be selected, namely T8 type 36W and T5 type 28W, which have higher luminous efficiency.
(4) Generally, it is advisable to use medium color temperature lamps: the color table of the light source (expressed by correlated color temperature) is selected, except for the special requirements of architectural color, generally can be determined according to the level of illuminance: in short, high illuminance (>750lx) is suitable Cool color temperature (high color temperature), medium color temperature (about 200~1000lx) for medium illuminance, warm color temperature (low color temperature) for low illuminance (≤200lx). Because warm color temperature light makes people feel comfortable under low illuminance, but feels hot and dry under high illuminance, while cold color temperature light feels comfortable under high illuminance and feels dim and cold under low illuminance. In most places, the illuminance is between 200 and 750lx, and it is better to use a medium color temperature light source; and medium and low color temperature fluorescent lamps have higher efficiency than high color temperature lamps, which is also conducive to energy saving.
What is the difference between LED explosion-proof headlamps and explosion-proof headlamps?
1.LED explosion-proof headlamp is a kind of explosion-proof lamp, and its principle is the same as that of the explosion-proof lamp, except that the light source is an LED light source, which is adapted to prevent igniting the surrounding explosive mixture such as explosive gas environment, explosive dust environment, methane gas, etc. Various specific measures
■LED explosion-proof headlamps are used as explosion-proof lights in wineries: they should be designed with a road seal; an explosion-proof intrinsically safe type; protection class IP65, anti-corrosion class WF1, to achieve waterproof, dustproof and explosion-proof.
■LED explosion-proof headlamps used as explosion-proof oilfield lights: should be designed with anti-falling rings; make the oil field derrick vibrate to prevent the lamps from falling off because of the bolts falling off and protected by the anti-falling rings.
■The standard explosion-proof light led that has passed the fire inspection and acceptance.
■LED explosion-proof lamp New process aluminum profile stretch forming
What is the difference between led explosion-proof headlamps and ordinary led headlamps?
LED explosion-proof lights refer to qualified third-party explosion-proof certification, which can be used in hazardous locations where flammable and explosive gases or dust exist. Ordinary LED lights refer to lamps that can be used in safe areas. They are not explosion-proof and cannot be used in hazardous areas.
What is the difference between the anti-riot switch, anti-riot light and ordinary ones?
According to different working environments that may cause explosions, anti-riot switches and anti-riot lights are added with anti-riot electrical equipment and protective devices. According to their structure and anti-riot performance, they are divided into anti-riot type (mark d), increased safety type (e), Intrinsically safe type (i), positive pressure type (p), oil-filled type (o), sand-filled type (q), non-sparking type (n), etc. Compared with ordinary electrical equipment, the symbol is added with the Ex symbol, which is more common than ordinary electrical equipment. The equipment has more safe and stable performance, and its protective device can prevent the charged body from contacting the explosive medium.
What are the differences between explosion-proof lights and ordinary lights?
There is little difference between an explosion-proof lamp and an ordinary lamp installation, mainly because the metal shell of the explosion-proof lamp should be grounded, To prevent accidental electric sparks from accidental electric leakage. And ordinary lights do not need to be grounded.