太阳能光伏组件的可靠性测试结果有哪些

太阳能光伏组件的可靠性测试结果有哪些

1、测试项目比较多，我重点介绍下光伏组件在电站现场需要的测试项目，目前国际主流的标准是IEC62446，国内第三方检测机构也有类似的指导规范大同小异。
2、重点几个是绝缘电阻，接地连续性，IV特性，开路电压，短路电流，红外或EL测试，风速辐照度等环境测试，详细可以参考我之前百度文库的文章《太阳能光伏电站测试运维解决方案》

el检测仪用于检测太阳能组件的隐裂缺陷，如没有是无法检测出内部缺陷问题的，这个设备无论实在流水线生产还是光伏电站现场，都是必备设备

塑料的防火认证最高级是5va,申请5va周期很长，费用很高，如果材料不行还过不了。 根据ul94标准判定材料的难燃性水平。按照hb、v-2、v-1、v-0的顺序，难燃性依次增大。一般说的难燃材料指的是v-0。除了传统的评价方法之外，还设定了上一级的5v评价。作为定位，难燃性顺序依次为v-0、5vb、5va。由于5v评价的 试验 方法与传统相比有些不同，所以卡中象"v-0、5va"那样就表示进行了两个 试验 。难燃性 hb < v-2 < v-1 < v-0 < 5vb < 5va ul94 5va & 5vb flammability standard specimens bars: length 125 mm (5 in) x width 13 mm (0.5 in) x thickness [typically 3.0 mm (1/8 in)]. plaques: length 150 mm (6 in) x 150 mm (6 in) x thickness [typically 3.0 mm (1/8 in)]. procedure for bars 1.a total of 10 specimens (2 sets) are tested per thickness. 2.five specimens of each thickness are tested after conditioning for 48 hours at 23 degrees c and 50% rh. 3.five specimens of each thickness are tested after conditioning for 7 days at 70 degrees c. 4.for bar specimens, the specimens are mounted with the long axis vertical. 5.a 125 mm overall high bunsen burner flame with a 40 mm blue inner cone is applied to the lower corner of each specimen at an angle of 20 degrees from vertical such that the tip of the blue inner cone touches the specimen. the flame is applied for 5 seconds and removed for 5 seconds. the operation is to be repeated until each specimen has been subjected to 5 applications of the test flame. procedure for plaques same as for bars except that the plaques are to be mounted on the horizontal plane with the flame applied to the center of the bottom surface of the plaque. requirements for 5va 1.the specimens may not burn with flaming or glowing combustion for more than 60 seconds after the fifth application of the test flame. 2.the specimens may not drip flaming particles that ignite the dry absorbent surgical cotton located 300 mm below the test specimen. 3.plaque specimens may not exhibit burnthrough. requirements for 5vb 1.the specimens may not burn with flaming or glowing combustion for more than 60 seconds after the fifth application of the test flame. 2.the specimens may not drip flaming particles that ignite the dry absorbent surgical cotton located 300 mm below the test specimen. 3.plaque specimens can exhibit burnthrough.

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