Explosion-proof road light installation precautions

The street lamp consists of three parts: explosion-proof lamp, light pole and base. The base is equipped with a ballast for the junction box or street lamp. The lamp post is sprayed on the surface of galvanized steel pipe. It has good anti-corrosion ability. The base is made of cast iron. It is firm and stable. The lamp post and base can be specially made according to user requirements. 01, 02, 05, 06 can be customized according to user requirements. Fitted with a light umbrella. Meet the requirements of GB3836-2000 and IEC60079 standards.

1. According to the actual lighting needs of the work site, determine the installation position and mode of the lamp and ballast, and then prepare the corresponding length of the three-core cable according to the distance from the lamp to the ballast contact and the distance from the ballast to the 220V power contact. Line (a cable that can be used with the lamp for distances up to 2 meters).

2. When the distance from the lamp to the ballast contact exceeds 2 meters, the three-core cable must be replaced. Evenly use the Allen key to unscrew the six hexagon socket bolts of the lamp housing. After the lamp body is partially removed, remove the three-core cable that comes with the lamp, and then connect the prepared three-core cable according to the original wiring.

3. Use a socket wrench to unscrew the fastening bolts on the ballast cover, remove the cover, and introduce one end of the three-core cable of the luminaire into the ballast chamber through the introduction device of the ballast output port. The black wire (or blue wire) and the yellow-green wire are respectively connected to the terminal blocks 4, 5, and 6 of the ballast, and then the compression nut is tightened.

4. One end of the prepared three-core power cable is introduced into the ballast cavity through the introduction device of the ballast input port, and then the L line (hot line), N line (middle line), and ground line are respectively connected to the ballast. On the terminals of the 1, 2, and 3 positions, tighten the compression nut.

5. Close the ballast cover and tighten the fastening bolts. Finally, connect the other end of the three-core cable to the 220V power supply according to the explosion-proof requirements.

Camshaft
Camshaft

A camshaft is a component in a piston engine. Its function is to control the opening and closing of the valve. Although the speed of the camshaft in a four-stroke engine is half the speed of the crankshaft (in a two-stroke engine, the speed of the camshaft is the same as that of the crankshaft), but usually its speed is still very high, and it needs to bear a lot of torque, so the design of The camshaft has high requirements in terms of strength and support, and its material is generally high-quality alloy steel or alloy steel. Since the law of valve motion is related to the power and running characteristics of an engine, the design of the camshaft occupies a very important position in the design process of the engine.

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