A little more on "Service Disruption"

When I wrote about service disruptions as it relates to light rail, some of you may have tried to picture exactly what I was talking about (then again, maybe not).

I talked about what actually powers the train, which is an electricity collection device called a pantograph Essentially, the pantograph collects electrical current from overhead lines which makes the light rail go, more or less.

Here is a video of a pantograph catching something on the overhead lines and pretty much disintegrating. Rendering the train powerless, constituting a "Service Disruption"