| 1. | Hand tools for live working up to 1 000 v a . c . and 1 500 v d . c . ; amendment 2
高达1000v交流电和1500v直流电的带电作业用手工工具.修改件2 |
| 2. | In addition , the regulation does not apply to electrical products which are operated at extra low voltage , i . e . not exceeding 50v a . c . or 120v d . c .
此外，该规例亦不适用于使用不超过50伏特交流电或120伏特直流电的特低压电气产品。 |
| 3. | In electronics , a circuit for converting ac voltage to low voltage dc in such a way that the output is regulated to minimize noise and voltage fluctuation
在电子技术中,把交流电转换成低电压直流电的一种电路。这种电路的输出是经过调整的,使它的噪声及电压波动都很小。 |
| 4. | Electrical safety in low voltage distribution systems up to 1 kv a . c . and 1 , 5 kv d . c . equipment for testing , measuring or monitoring of protective measures . part 7 : phase sequence
最高可达1 kv交流电和1 . 5 kv直流电的低压配电系统中的电气安全性.试验测量或保护测量监测用设备.第7部分:相序 |
| 5. | Electrical safety in low voltage distribution systems up to 1 kv a . c . and 1 , 5 kv d . c . equipment for testing , measuring or monitoring of protective measures . part 3 : loop impedance
最高可达1 kv交流电和1 . 5 kv直流电的低压配电系统中的电气安全性.试验测量或保护测量监测用设备.第3部分:回线阻抗 |
| 6. | Electrical safety in low voltage distribution systems up to 1 kv a . c . and 1 , 5 kv d . c . equipment for testing , measuring or monitoring of protective measures . part 5 : resistance to earth
最高可达1 kv交流电和1 . 5 kv直流电的低压配电系统中的电气安全性.试验测量或保护测量监测用设备.第5部分:接地电阻 |
| 7. | Electrical safety in low voltage distribution systems up to 1 kv a . c . and 1 , 5 kv d . c . equipment for testing , measuring or monitoring of protective measures . part 1 : general requirements
最高可达1 kv交流电和1 . 5 kv直流电的低压配电系统中的电气安全性.试验测量或保护测量监测用设备.第1部分:一般要求 |
| 8. | Electrical safety in low voltage distribution systems up to 1 kv a . c . and 1 , 5 kv d . c . equipment for testing , measuring or monitoring of protective measures . part 2 : insulation resistance
最高可达1 kv交流电和1 . 5 kv直流电的低压配电系统中的电气安全性.试验测量或保护测量监测用设备.第2部分:绝缘电阻 |
| 9. | Electrical safety in low voltage distribution systems up to 1 kv a . c . and 1 , 5 kv d . c . equipment for testing , measuring or monitoring of protective measures . part 8 : insulation monitoring devices for it systems
最高可达1 kv交流电和1 . 5 kv直流电的低压配电系统中的电气安全性.试验测量或保护测量监测用设备.第8部分: ii系统用绝缘监测装置 |
| 10. | Electrical safety in low voltage distribution systems up to 1 kv a . c . and 1 , 5 kv d . c . equipment for testing , measuring or monitoring of protective measures . part 4 : resistance of earth connection and equipotential bonding
最高可达1 kv交流电和1 . 5 kv直流电的低压配电系统中的电气安全性.试验测量或保护测量监测用设备.第4部分:接地和等电位连接电阻 |
