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Classification: 27040000 [AAB631011]
| Preferred name | 27-04 电源 |
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| Definition | 电力供应或电流供应包括向用户供应电能所需的所有设备和功能。供电包括电力的生产、运输和商业。27040000 大类的结构包括：交流电和直流电或交流和直流电压变换装置和设备、内燃机装置和独立供电发电机（应急电源装置）以及安装在馈线上的模块，目的是为关键电力负荷（USV）的不间断电力供应提供保证。供电设备的组件、附件、维护、检查和服务又可分为以下几组 |
| IRDI | 0173-1#01-AAB631#011 |
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