由于我国低压电器品种、规格及性能方面的欠缺与不敷应用、现行设计规范的不尽完善、以及用户的使用偏差,多种低压电器的实际工程应用中存在一些不合理的、甚至错误的用法,导致运行维护困难、故障增多或留下长期的安全隐患。首先探讨了我国低压电器品种、规格及性能方面存在的难以满足实际工程技术要求的若干问题,同时还提出进行改进与开发的建议。 Due to the shortcomings and inadequate application of low-voltage electrical apparatus, specifications and performance in our country, the imperfect and even wrong usage of various current low-voltage electrical appliances in practical engineering applications due to the imperfect existing design codes and user’s deviation in use, , Resulting in difficulties in operation and maintenance, increased faults or long-term safety problems. First of all, it discusses some problems in the varieties, specifications and properties of low voltage electrical appliances in our country that are difficult to meet the requirements of actual engineering and technical requirements. At the same time, it also puts forward suggestions for improvement and development.