轨道车辆防护的指导。第2部分： 设计标准灭火措施更换导线信号，控制和疏散系统。
UNI CEI 11170-2: Guidelines for railway vehicle protection for tramways and with guided rail. Part 2: Design criteria-measures for fire restringing-Signalling, control and evacuation systems.
在原有线路无需更换杆塔的情况下，采用扩容导线，线路能增加50%的载流量。
The capacity of existing transmission lines can be enlarged to the extent of 50% by using the new type of enlarged capacity conductors without changing existing towers.
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