BR-PV-HT 冰雹试验机,Hail Tester
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稳态模拟器及I-V测试仪,组件户外测试系统,紫外预处理试验机,引出端强度试验机,湿漏电流测试系统,机械载荷试验机,冰雹撞击试验机,旁路二极管热性能测试系统,热斑耐久试验机,EVA交联度测试仪
1）标准冰球直径：25mm系列
2）标准冰球质量：7.53g±2
3）标准冰球速度：23.0m/s±2
4）冰雹枪头自动定位
5）执行IEC 61215:2005 & Ed.3、IEC 61646:2008光伏PV组件冰雹试验标准.
BR-PV-HT Hail Tester
Implementation of standards: IEC 61215:2005 & Ed.3, IEC 61646:2008
| Diameter mm | Mass g | Test velocity m.s-1 | Diameter mm | Mass g | Test velocity m.s-1 |
| 12.5 15.0 25.0 35.0 | 0.94 1.63 7.53 20.7 | 16.0 17.8 23.0 27.2 | 45.0 55.0 65.0 75.0 | 43.9 80.2 132.0 203.0 | 30.7 33.9 36.7 39.5 |
| From the table, we calculated the square of hail speed by 0.047~0.049 equals hail diameter. Thus we calculate the hail air resistance coefficient. When the hail free fallers accelerated to a certain stag, hail gravity and hail resistance balance final constant speed landing. Based on the above principles, our hail tester is for hail and shells by the pneumatic acceleration. When cartridge from gun, hail with constant speed bumps after components. | |||||
In order to avoid the hail breached, we give the hail added a protective device hail shell, or cartridge. The diameter of hail shell and the gun shell is very consistent. The diameter of it and the shell, very consistent gun size. High-pressure gases in this state promote cartridge directly, so speed control and speed repeatability is better.
Module mounting: >
Speed repeatability （firing success rate）: > 90%
Gun positioning: laser sighting, electric control displacement
Ultra high speed optical fiber measurement system: speed reading
Low temperature test chamber temperature and deviation range:
Electronic balance: maximum weighing range
Gas source or silent air compressor: > 0.3MPa
|
| Standard hail diameter: Standard hail mass: Send speed setting: Speed measure accuray: ±2% Speed windage range: ±5% NOTE: Hail manufacturing temperature |
Pass criteria:
The 11 points before and after ice impact, through EL equipment inspection crack, because cannot pass through visual inspection method.
Vertical firing mode, solved technical problems of the acceleration of gravity of hail and speed deviation.
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