【摘要】 本文较详细地介绍国外著名公司主要有代表性的智能化产品及相关元器件的技术性能，综述了国外在不同时期智能化低压配电系统的特点，并就国内上述产品的开发及发展提出了看法更多还原

【Abstract】 This article summarize the technical characteristic of the LV intelligent distribution system at abroad in the different times,through give a detail introduction of technical features of representative intelligent products of famous companies.And give point of views of how to developing the products mentioned above in China by authors.更多还原