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一、半自动闭塞的概况: 近几年来半自动閉塞設备有了很大的发展,全国共装设了各种类型的半自动閉塞投备达2千公里以上,它们在保证行车安全,提高行車效率、減輕劳动强度方面都起了显著的作用,这些設备中以簡易繼电半自动閉塞为主。它的特点是;投资少、收效快、建設期限短、結合我們的具体情况,能大量安装。因而,深受現(土人力)广大职工的欢迎。由于过去缺乏简易繼电半自动闭塞的定型,各铁路局自行設計施工。所以,在已经运用的簡易繼电半自动闭塞設备之中,类型繁多,設计标准、技术条件均不统一。同时,这些类型之中,在安全与效率上也都存在
First, the overview of semi-automatic occlusion: In recent years, semi-automatic occlusion device has been greatly developed, the country installed a total of various types of semi-automatic occlusion injections up to 2 km above, they are to ensure traffic safety and improve driving efficiency, Reduce labor intensity have played a significant role in these devices to simple semi-automatic relay blocking the main. It is characterized by: less investment, quick, short construction period, with our specific circumstances, can be a large number of installation. Therefore, by the present (Earth Manpower) the majority of workers welcome. Due to the lack of stereotypes of simple relay semi-automatic occlusion in the past, all railway administrations designed and constructed their own. Therefore, the simple relay has been used in semi-automatic occlusion equipment, a wide range of design standards, technical conditions are not uniform. At the same time, these types also exist in terms of safety and efficiency