Rated current, rated speed, and rated input power shall reach bottom line of specification after 5 minutes continuous rotation at rated voltage and reach standard specification after 10 minutes continuous at rated voltage.
4-13-2、起动电压是指当突然通电后能够使风扇起动之最低电压
Starting voltage is the least voltage that enables to start the fan by sudden power on.
5、保护功能 Protection:
反向电压测试:以24V电压作反向导电测试1分钟均不转动,再正向导电仍可正常转动。
Reversal voltage test: We took 200pcs for reversal voltage test at 48V for 1 minutes and all remain still. Fans work normally after corrected voltage.