设计思路沪宁高速公路扩建工程中大多数的收费站及服务区配电房都采用了扩建的方式,新旧供电系统结合的问题是本次改扩建最突出的特点。对于场区内现在正常使用的低压供电系统采用了最大限度继承的方式,选用时综合考虑末端开关容量、用电负荷以及电缆型号,合理地配置配电房出线回路; Design ideas Shanghai-Nanjing Expressway expansion project in most of the toll stations and service area distribution room have adopted the expansion of the way, the old and new power supply system is the most important feature of this expansion. For the low voltage power supply system normally used in the field area, the maximum inheritance mode is adopted. When considering the terminal switch capacity, power load and cable type, the outlet circuit of the power distribution room should be rationally configured.