The calibrated photovoltaic special-purpose lightning protection device in Chengdu passed the rigorous testing of TÃœV Rheinland's accredited laboratories. The test results show that all parameters and indicators of the product have reached the world's leading level! The TÃœV Rheinland logo is a safety certification mark for components and components. It has been widely accepted in Europe. Its reports and certifications are issued in most countries in the world. The TÃœV Rheinland logo is also recognized as the most authoritative certification in the photovoltaic industry worldwide!
Chengdu's calibration of photovoltaic lightning protection products obtained TÃœV certification, fully reflects the confidence and determination of Chinese companies to enter the international market, and also proves that China's lightning protection enterprises are fully capable of producing world-class high-quality, high-security lightning protection products!
Established in 1999, Chengdu Calibration Technology Co., Ltd. is located in the company's headquarters base in Chengdu Industrial Development Zone. It is a company engaged in research, development and manufacture of lightning electromagnetic pulse protection and new grounding materials, new energy products, power parameter detection, and metering. Market, design, construction as one of the high-tech enterprises. The company employs more than 300 people, including 2 senior engineers, 5 senior engineers, and 12 intermediate engineers. It has a lightning protection and grounding new technology division, a photovoltaic convergence box division, and a smart multi-function meter division. The Network Energy Business Department has set up offices, engineering construction and after-sales personnel in Beijing, Shanghai, Guangzhou, Chongqing, Wuhan, Changsha, Taiyuan, and Xi'an, and has nearly 100 employees. The products have been widely used in various fields at home and abroad.
1. Correct selection of teeth
1) Before use, confirm whether the mechanical properties of the product meet the customer's requirements (such as the tensile strength of the Bolt and the safe load of the nut).
2) The length of the bolt should be selected properly, with 1-2 pitch exposed after tightening.
3) Before use, the thread should be kept clean.
2. How to use dental strips correctly
1) When tightening the teeth, pay attention to that the direction of force applied by the wrench should coincide with the axis of the screw, and do not tilt.
2) In the process of tightening, the force should not exceed the safety torque, and should be uniform. Try to use the torque wrench or socket.
3) Locking too fast will lead to locking, it is recommended not to use electric or pneumatic wrench.
4) Keep the thread clean. In order to ensure the smooth fit of screw and nut, it is recommended to put the product in a clean container and do not place it at will.
3. Standard of tooth bar maintenance
1) If there is slight damage to the removed tooth, screw and nut, the die and tap shall be used for repair.
2) The removed and repaired teeth, Screws and Nuts shall be maintained by means of oil bubble or lubricating oil, and shall be placed in order according to specifications, models and purposes.
4. Scrap standard
The bolts with obvious crack, broken thread, sliding, disorderly thread, screw tensile deformation, shear trace, etc. which can not be repaired by the on-site leader can be scrapped.
5. Specification parameters of tooth strips
Texture of material:
304/316
Product standard:
DIN975
Surface treatment:
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