电缆额定电压 meaning in Chinese

rated voltage for cable

When the cables use in alternating current system , rated voltage of cables should be at least equal the rated voltage of the system ; when the cables use in direct current system , rated voltage should be not greater than 1 . 5 times of the rated voltage of the cables
当电缆使用于交流系统时，电缆的额定电压至少应等于该系统的额定电压；当电缆使用地直流系统时，该系统的额定电压应不大于电缆额定电压的1 . 5倍。