Contact rail need to disconnect at the station, turnover, power supply substation and so on, vehicle collector smooth transition in fracture depends on the ramps. Ramps have two kinds of main line and siding line. Ramp and contact rail have the same section and shape. The structure of ramps has not any direction, it can match any finished contact rail fraction through cable terminals board or bolted joint, need no grinding. Ramps have good characteristics of arc burning resistance, shock resistant properties. Ramps is preflexed, have self-extinguished arc function
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Temperature rise and mechanical strength
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electrical resistance at 20C
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At condition of speed of 100km / h and180N dynamic pressure, the ramp shall not appear deformation and break after 100 times repeated external impact tests.
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Arc resistance performance
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At condition of electrical current 1000A, speed of 100km / h and180N dynamic pressure, the ramp shall not appear deformation and break after 100 times repeated arc-tight external impact tests, and the burned area of surface for stainless steel belt shall not more than 10%.
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