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Explosion-proof control boxes mainly include lighting distribution boxes used to control lighting systems, and power boxes used to control power systems. Most of these products have a modular structure and can control up to 12 circuits. Their casings are mostly made of cast aluminum alloy, some are welded from steel plates, and a very small number have casings made of insulating materials. Its interior mainly consists of circuit breakers, contactors, and thermal relays; these are switching devices used to close or open control circuits in order to issue commands or carry out programmed controls. Such explosion-proof electrical devices mainly include control buttons and operation levers. The casings for explosion-proof control buttons are generally manufactured by injection molding using polycarbonate, glass fiber-reinforced unsaturated polyester resin, or ABS plastic; in some cases, they are also formed by die-casting aluminum. Its general structure features a enhanced safety enclosure containing flameproof components, and it also offers corrosion protection; its explosion protection rating can reach Class II C. Select the configuration by operating the column. The explosion protection rating can reach up to IICT6. Incidentally, explosion-proof automatic switches, explosion-proof knife switches, and fuses are also commonly used in certain control applications to open and close circuits in power or lighting distribution systems, though in this case they function as a single unit. Therefore, these products are also classified under this category. Explosion-proof starters include products such as manual starters, electromagnetic starters, reversible electromagnetic starters, autotransformer step-down starters, Y-△ transformation step-down starters, and feed switches. As terminal control devices, explosion-proof starter products typically involve one starter controlling one motor, and they are products that are widely used in large quantities. Its outer shell is usually made of cast aluminum alloy or steel plate. Its interior generally consists of components such as contactors (air-type or vacuum-type), motor protection systems, signal lights, buttons, and autotransformers, and it usually features local control, remote control, and automatic control functions. Some products also come equipped with a circuit breaker as a main switch, making them more complete. There is also a relatively high demand for products such as explosion-proof switches in the market, which is why there are many manufacturers of these products. These mainly include small explosion-proof devices such as lighting switches, changeover switches (combination switches), limit switches, and pull-cord switches. The explosion protection rating of these products can reach level II CT6. Their explosion-proof enclosures are usually of composite structure, made by die-casting aluminum alloy; however, a few manufacturers use enclosures made from other materials. These products are characterized by their small size, single internal components, low technical complexity, simple structure, and ease of production. Explosion-proof electrical equipment: Command electrical devices are switching devices used to close or open control circuits in order to issue commands or carry out programmed controls. Such explosion-proof electrical devices mainly include control buttons and operation levers. The casings for explosion-proof control buttons are generally manufactured by injection molding using polycarbonate, glass fiber-reinforced unsaturated polyester resin, or ABS plastic; in some cases, they are also formed by die-casting aluminum. Its general structure features a enhanced safety enclosure containing flameproof components, and it also offers corrosion protection; its explosion protection rating can reach Class II C. The operation column mainly consists of a main box, a wiring box, and support pillars. Their main box and wiring box are either made as one unit or as separate components, each with its own advantages. Its material is basically made of cast aluminum alloy. The interior is composed of various components such as instruments, changeover switches, buttons, and signal lights. It can be combined according to different needs. Electrical equipment in explosion-proof junction boxes must be connected to the power supply network via wires or cables in order to form a system that enables them to perform their functions. However, its connecting wires or cables cannot be infinitely long, and there are many points during the connection process where wires need to be branched through series and parallel connections. This will inevitably lead to external leakage at the joint area, making accidents likely. Explosion-proof junction box products are designed to address such issues, in order to further ensure safe production. Such products include junction boxes, wire boxes, conduit boxes, suspension boxes, distribution boxes, etc., whose housings are primarily made of cast aluminum alloy. As required, there are numerous inlet and outlet connection devices, and the box is equipped with terminal blocks for making connections or branching. Most of these products are manufactured as explosion-proof or increased-safety types; they vary in size significantly, with the explosion protection rating reaching up to Class II C. In any workplace or environment where explosion-proof lighting is required, lighting measures must be implemented, and this applies equally to areas containing various explosive gases. Due to their wide range of applications in various production areas, explosion-proof lighting products are manufactured in large quantities. There are a wide variety of such products with diverse specifications, but they can generally be classified into categories such as those for lighting, signage, signaling, and portable use. In terms of light source types, they include incandescent lamps, self-ballasted mercury lamps, high-pressure sodium lamps, metal halide lamps, dysprosium lamps, and fluorescent lamps. Structurally, there are even more variations, including ceiling-mounted, wall-mounted, recessed, portable, and cantilevered types. From an installation perspective, explosion-proof lighting fixtures can be installed at angles ranging from 30° to 90°. In terms of power, it can range from dozens of watts to several hundred watts. The installation height ranges from the ground level up to several meters. It can be said that explosion-proof lighting fixtures are the products with the highest production volume and widest use among all explosion-proof electrical products. Furthermore, due to its specific functions, it results in high wear and a high frequency of replacements. These products come in a wide variety of structural shapes, but in terms of explosion-proof performance, they are mainly of the flame-retardant type. The casing is usually made of cast aluminum alloy, and they are capable of meeting the various lighting and display requirements of users in areas classified as below Class II C. The main function of explosion-proof connection components is to enable cable connections and cable branching. Its main products are explosion-proof latches and explosion-proof power socket boxes. The rated voltage ranges from 220V to 380V, and the maximum rated operating current can reach 100A. There are two-pole and three-pole versions, with neutral and ground wires. The product enclosures are available in metal or plastic materials, and the explosion protection rating can reach Class II C. Its interior is mainly composed of connectors; some products are equipped with a switch with a cut-off function, and there is a interlocking mechanism between this switch and the connectors – that is, the switch must be turned off first before the connector is plugged or pulled out, and the connector must be inserted first before the switch is turned on. Products without a switch also have the function of first disconnecting the main circuit before disconnecting the ground wire, and first inserting the ground wire before inserting the main circuit. All of this is to ensure operation in a safe condition. Most of these products are operated manually, so relatively high insulation performance is required, and this aspect must not be overlooked. Explosion-proof fans include products such as explosion-proof ceiling fans, explosion-proof exhaust fans, and explosion-proof axial flow fans. Their structure consists of an explosion-proof motor, an explosion-proof junction box, an explosion-proof speed control controller, and blades. The rated operating voltage for such explosion-proof fans is generally up to 380V, with an explosion protection rating of up to II BT4. In certain production environments, explosion-proof alarm systems often require lights and sounds to alert people to take action, and such electrical devices become even more important in areas with explosive gases. Its main products include explosion-proof indicator lights, explosion-proof bells, explosion-proof whistles, and explosion-proof horns. For explosion-proof alarm devices, the design is typically of the flameproof type; they are made from cast aluminum alloy, with an explosion protection rating of up to IICT6. Its operating voltage can range from 36 to 220V for direct current, and up to 380V for alternating current. Explosion-proof junction boxes and explosion-proof enclosures are its main structural components. Products in the category of explosion-proof electromagnets mainly include explosion-proof electromagnets, explosion-proof solenoid valves, and explosion-proof electromagnetic drivers. Its working principle is that, under the action of an electromagnetic field, the generated electromagnetic force is used to drive mechanical equipment, usually for braking purposes. The structure is mostly flameproof, manufactured from cast steel or cast iron, with a flame protection rating of II BT6. Its main technical parameters are generally thrust or suction (in kg) and the duty cycle; it must not be powered on for extended periods, as this can lead to overheating and pose a risk. Other types of explosion-proof equipment often face many special requirements in complex production processes, which necessitates the creation of specialized explosion-proof electrical products. Due to the low production volume of such products, their specific requirements, and the fact that they are non-standard items, they are classified under other explosion-proof categories. The main products include electrical measuring instruments, temperature transmitters, pressure transmitters, speed transmitters, level gauges, quantitative control devices, ignition systems, cameras, and other such items. These products are essentially manufactured to meet production needs. Although their performance requirements vary, most of them have metal casings designed in either intrinsically safe or enhanced safety configurations; a small portion of them are intrinsically safe products, with generally low operating voltages and currents, and an explosion protection rating of IICT6. Civilian explosion-proof products: There is also a need for certain explosion-proof products in civilian use. These products are quite diverse, so they are grouped together as civilian explosion-proof products; the main examples include explosion-proof tricycles and explosion-proof electric drills. Such products require a high level of technology. It is also a new starting point and a new direction for the explosion-proof industry.