光伏保险丝UL认证标准
UL248-19
标准要求
1. 在保险丝上要打上“PV”,“gPV”;或“光伏保险丝”。
2. 保险丝如果配有接线端子,要按照接线端子相关标准的要求打marking(在保险丝上或小包装上)。
3. 不能用于保护光伏逆变器里面的部件例如电容,也不能用来防止这类电容的反灌。
4. 额定电压<= 1500 V dc。
5. 不能打上“Current Limiting”的Marking。
光伏保险丝UL248-19认证测试项目
1. VERIFICATION OF TEMPERATURE RISE AND IN:温升
2. VERIFICATION OF OVERLOAD OPERATION:过载
3. VERIFICATION OF OPERATION AT RATED VOLTAGE:分断
4. VERIFICATION OF THERMALLY INDUCED DRIFT:高低温循环
5. VERIFICATION OF CURRENT CARRYING CAPACITY (IN):(AFTERUNACCEPTABLE LEVELS THERMAL DRIFT) 高低温循环后温升
6. VERIFICATION OF OVERLOAD OPERATION:(AFTER UNACCEPTABLE LEVELSTHERMAL DRIFT) 高低温循环后过载
7. VERIFICATION OF OPERATION AT RATED VOLTAGE:(AFTER UNACCEPTABLELEVELS THERMAL DRIFT) 高低温循环后分断
8. VERIFICATION OF FUNCTIONALITY AT TEMPERATURE EXTREMES高温环境功能检验
9. VERIFICATION OF CURRENT CARRYING CAPACITY (IN):(AFTER FUNCTIONALTEMPERATURE EXTREMES) 高温环境中温升
10. VERIFICATION OF OVERLOAD OPERATION:(AFTER FUNCTIONALTEMPERATURE EXTREMES ) 高温环境中过载
11. CURRENT CYCLING 电流循环