Estimated life spans of the 3rd rail type power collecting shoes

초록

For the developed 3rd rail type power collectors whose design requirements were low interruptions and wearing of shoes, shock and vibration absorbing in operation, minimized variation of contact force between shoes and conductor rails, protection of on-board equipments from surge, easy maintenance (replacement and installation), power feeding for DC (direct current), light weight, and minimized size, durability (life span) of the 3rd rail type power collecting shoes were estimated. In other words, wearing of the power collecting shoes were measured and analyzed while the rubber-tired light rail vehicles ran about 30,000km in the test track. Based on the measuring results, life spans of the power collecting shoes were estimated in commercial operation.