The Pennsylvania Railroad electrified  this route all the way back in the 1920s, and back then, there wasn't any kind of  commercial electrical grid for them to use, so they decided to build their own from scratch.

宾夕法尼亚铁路早在 20 世纪 20 年代就对这条路线进行了电气化，但当时并没有任何类型的商业电网可供他们使用，因此他们决定从头开始构建自己的电网。