The explosion-proof lamp and lampshade should be able to automatically cut off the power before opening
Explosion-proof LED lamps that have risk sparks, arcs or risk temperatures during normal operation and whose shell volume is greater than 50000px3 or are classified as IIC-level explosion-proof lamps in Article 4 of GB3836.1 are not suitable for the direct introduction method of elastic sealing ring compression. Although GB3836.2 does not specify this, GB3836.15-2000 makes rules for it. If the cables introduced into the lamps and lanterns through the introduction equipment, from the equipment to the use of the whole process, if there is a possibility of tension, the pressure of the introduction equipment or the inside of the lamps close to the imported equipment, add a cable anti-pulling and decompression plate to prevent the force from being transmitted to the terminals. up and avoid possible movement of the cable and contact failure of the electrical connection. Lamps may need to be provided with more than one imported equipment during design to facilitate users' different equipment requirements. When leaving the factory, all the imported equipment should be equipped with plugging parts, and the structure of the plugging parts should be suitable for the explosion-proof type. Perhaps, only one introduction equipment is installed, and the other holes (after the introduction equipment is removed) are replaced with bulkheads of suitable explosion-proof type. In this way, the failure of the flameproof enclosure will not be formed because the remaining imported equipment forgets to block.
According to the actual lighting needs of the job site, determine the equipment orientation and method of the lamps, and then prepare the corresponding length of Φ8~14mm three-core cables according to the distance from the lamps to the 220V power supply contact.
Remove the side panel with the "open/lock" mark on the junction box, and take out the equipment accessories from the packaging box, including sealing rings, gaskets and joints (with set screws). Ceiling mount adapters (with set screws) and 3/4" adapters.
Connect one end of the three-core cable to the "L", "N" and contact points in the box, then press the cable with the cable pressure plate, and fix it with the fastening screw, then install the side plate and tighten the screw.
It refers to a lamp used in places where flammable gas and dust exist, and can prevent arcs, sparks and high temperatures that may occur inside the lamp from igniting flammable gas and dust in the surrounding environment, and then reach the explosion-proof requirements. There are mainly explosion-proof explosion-proof lamps, mobile explosion-proof lamps and so on. Explosion-proof platform lights are suitable for lighting in flammable and explosive places such as petrochemical equipment, gas stations, and transfer stations.
Explosion-proof lamps and lamp shades should be able to automatically cut off the power before they are opened. However, because the interlocking equipment is complicated and difficult to complete, most lamps and lanterns only have warning signs with the words "prohibited to open with electricity" on the conspicuous part of the shell. And because the surface temperature of the bulb is still very high after the power is turned off, if the lampshade is opened immediately, there is a risk of gas mixture, so incandescent lamps, high-pressure sodium lamps and other light sources with high surface temperature of the bulbs, and lamps that can quickly open the cover should pay attention to this.
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