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在双向自动闭塞(含自动站间闭塞)区段,方向电路是相邻两站间闭塞关系的基础,只有通过它才能建立区间的运行方向,因此方向电路是双向自动闭塞制式不可缺少的重要组成部分。由于原有电路设计较适用于6502电气集中,而广铁集团公司管内京广线均为计算机联锁车站,在实际运用过程中,
In the two-way automatic block (including automatic station blocking) section, the direction of the circuit is the occlusion relationship between the two adjacent stations, only through it to establish the running direction of the interval, so the direction of the circuit is an important two-way automatic blocking system is an important component section. As the original circuit design is more suitable for 6502 electrical concentration, and Guangzhou Railway Group Co., Ltd. Beijing-Guangzhou line are computer interlocking stations in the actual use of the process,