Xiaobian Tip: The blue light of some high-brightness LEDs can cause photochemical damage to the human retina. According to the photobiosafety series of IEC62471 lamps and lamp systems, the test of photochemical damage of LED products is also one of the hotspots of the industry. . In addition, LED products have long life characteristics, we can not perform long-term ignition test like ordinary lighting products, we must use a certain accelerated test method to predict the effective life of LED products.
China's LED lighting industry testing technology is becoming an international power semiconductor lighting is China's key support industries in the 11th and 12th Five-Year. In recent years, the support of national and local technology R&D and demonstration projects has been continuously increased, and a series of industrial support policies have been introduced, and LED lighting products have been promoted and promoted through application engineering pilots. These measures have effectively promoted the technological progress of China's LED industry. In the past ten years, the development of China's LED technology and industry has kept pace with the international development, especially in the downstream packaging and application products manufacturing.
International standards organizations have successively issued relevant standards. The International Electrotechnical Commission IEC has several technical committees involved in the international standardization of LED products; the International Lighting Commission CIE is also very concerned about LED international standardization research, especially in promoting the future standardization of semiconductor lighting. With the development of LED technology and industry, China's international voice in the LED field has significantly improved. From tracking and participation to actively leading international standards, China's LED has continuously improved its position in the field of international standardization.
At the same time, the standardization work of LED products in China has also achieved good results, which has effectively promoted the rapid and healthy development of the industry.
In the field of detection and evaluation of LED lighting products, China's self-developed testing technology and testing equipment are also attracting attention and have gradually become one of the strong countries.
Slewing Mechanism and Spare Parts
A slewing mechanism is an essential component of a Tower Crane that allows it to rotate horizontally. It enables the crane to reach different areas of a construction site without having to move the entire structure.
The slewing mechanism typically consists of the following components:
1. Slewing Ring: The slewing ring is a large circular bearing that supports the entire weight of the crane and allows it to rotate. It is usually located at the base of the crane and is designed to withstand heavy loads and provide smooth rotation.
2. Slewing Motor: The slewing motor is responsible for providing the necessary power to rotate the crane. It is connected to the slewing ring and is controlled by the crane operator.
3. Gear Mechanism: The gear mechanism consists of a set of gears that transmit the power from the slewing motor to the slewing ring. It ensures smooth and controlled rotation of the crane.
4. Brake System: The brake system is an important safety feature of the slewing mechanism. It is designed to hold the crane in place and prevent any unintended rotation when the crane is not in operation.
5. Control System: The control system allows the crane operator to control the rotation of the crane. It typically includes joysticks or buttons that enable the operator to start, stop, and control the speed and direction of rotation.
Overall, the slewing mechanism plays a crucial role in the functionality and versatility of a tower crane. It allows the crane to move horizontally, reach different areas of a construction site, and perform various lifting tasks efficiently.
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