In recent years, self-respecting PV bracket system has been favored by a large number of domestic and foreign roof customers because of its convenient installation and construction, as well as its advantages of non-destructive roof and no leakage risk. However, in a country with a typhoon-prone zone in Japan, a gravity-fixed self-resolving photovoltaic bracket alone can really withstand typhoons above 12th level?
In order to eliminate various concerns of our customers for self-respective PV stents, Baowei New Energy Company conducted a professional wind tunnel test on its gravity-type photovoltaic support system in Tochigi Prefecture, Japan. The test environment was set at 40m/s.
Test steps:
First, build a wooden board base, frame height of 150mm, and professional testers confirmed that the stand height of 150mm or less will not affect the test results.
II. 1a) According to the installation manual, install the 2*1 PC self-heavy type (windward surface on the assembly) in the forward direction, place the counterweight block at 2-3-3, and tighten the bolts according to the specified torque to complete the forward wind pressure test. Ready to work.
1b) The wind speed increases from 0→10m/s→20m/s→30m/s→40m/s. The duration of each wind speed is approximately 50s. Due to the test equipment, the maximum wind speed was 40m/s; the duration of the forward wind pressure test was 3 minutes and 20 seconds. No problem occurred.
2a) According to the installation manual, reverse the installation of 2*1 rank PC self-weight type (wind deflector is on the windward side), the weight block is placed 3-3-2, the bolt is locked according to the specified torque to complete the reverse wind pressure test Ready to work.
2b) Wind speed increases from 0→10m/s→20m/s→30m/s→35m/s→38m/s→40m/s. The tester slowly increased the wind speed to 40m/s and the vibration occurred, but no large displacement occurred.
3a) Use the smoke test to observe the effect of wind pressure flow. The test speed is 3m/s. After confirming with the testers, the smoke flow effect is not obvious after the increase in speed, and it is difficult to observe with the naked eye. However, the testers stated that the increase in speed does not substantially change the smoke flow path.
4a) Remove the PC self-weight and wood board base. Dispensing returns. End the test.
Test Results:
At the wind speed of 40m/s, there was no problem in the forward wind pressure test. In the reverse wind pressure test, although there was vibration, no large displacement occurred and the safety and stability were strong.
It can be seen that Baowei's self-weight bracket can not only ensure that it does not affect the roof waterproofing, but also can be stably installed. The PV bracket is convenient to transport, quick to install, and less labor-intensive. Many advantages are gathered in one, which can be well received by customers.
We were founded in Y2015 at Singapore Industry Park, Suzhou, which is half hour`s car ride from Shanghai. In Y2019, we setup our HONGKONG office to support the growing of oversea business. We has established two business units to support different market strategy. Winch is our star product in off-road BU. We provide electric winch various from 2000lbs to 20000lbs, serve the industry for ATV/UTV, Jeep and truck. We also provide hydraulic winch from 10000lbs to 20000lbs, to serve the professional rescue industry. To ensure our winch always has best quality and best cost, we manufacture each key component by ourselves, like motor, gear box, rack, etc. Our manufacturing process covers Aluminum die-casting, punching, machining, CNC, and so on. Our quality department follows ISO 9 0 0 1 to control the process quality and the product quality. We provide our customer OEM/ODM service. The new design will be provided to support the new developed customer and protect the existing customer as well.
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