Explosion-proof lighting fixtures inevitably generate electric sparks or form a hot appearance during operation
When the explosion-proof LED lamp is installed with an explosion-proof lamp, the nozzle adjacent to the lamp and the upper part of the hanging pipe need to be isolated and sealed. For the CB313-240G type explosion-proof lamp, the nozzle in the lamp holder should also be isolated and sealed. The specific method of isolation and sealing is: winding the wire with a thin cotton rope. The number of winding turns depends on the diameter of the wire and the size of the pipe diameter. If the pipe has multiple wires, it should be wound with a single wire for 3 to 4 turns before winding, and the pipe mouth should be filled with asphalt mixture sealing filler.
The electrical connectors should not only be in tight contact, such as the selection of stop gaskets, lock nuts, etc. In order to ensure the airtightness of the equipment, the isolation and sealing of the wire inlet must be done well.
Because LED is a solid-state cold light source, it has the advantages of high electro-optical conversion efficiency, low heat generation and low power consumption Very ambitious electric light source.
LED explosion-proof lamp belongs to a special type of overhead electrical equipment, which mainly solves the lighting problem. .
With the rapid development of petroleum, chemical, mining and other industries, lighting fixtures are more and more widely used in production, storage, and rescue, and there are more and more types. How to prevent accidental occurrence of lighting fixtures in gas-hazardous places has become a very important issue. Because explosion-proof lighting fixtures inevitably generate electric sparks or form a hot appearance during operation, once they meet the gas mixture at the production or rescue site, it will cause accidents and directly endanger life and national property. Therefore, as a widely used lighting fixture, its explosion-proof technology has already attracted widespread attention and great attention.
All circuits inside the equipment are under standard specification conditions (including normal operation and specified fault conditions), and any sparks or any effects generated cannot be ignited by the essence of the specified explosion-proof gas environment. Full circuit.
Pouring the electrical components that may produce sparks, arcs or dangerous temperature parts that may ignite explosive mixtures, and encapsulate them in a potting agent (compound) so that it cannot ignite surrounding explosive mixtures. Pouring method can be used. Prevents short circuits of electrical components, solidifies electrical insulation, prevents sparks on circuits and ignition of arcs and dangerous temperatures, prevents the intrusion of explosive mixtures, and controls surface temperatures under normal and fault conditions. The oil-filled property invades the entire equipment or parts of the equipment in the oil, so that it cannot be ignited in the explosion-proof gas environment above the oil level or outside the casing.
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