최고운행속도 350㎞/h급 전차선로 장력구간길이 계산 기법

초록

This paper deal with technique of tension length calculation for 350km/h high speed catenary system. Tension length affects in facility investment. Possibility of overlap increasing a tension length and the equipment investor decreases in order to decrease. Considers the parameter which specifies and the grudge which is possible long the fact that decides a tension length is the aim which is important plans overhead contact line. The element which decides a tension length with next following; (ⅰ) Operating range of tension device, (ⅱ) Change of the horizontal tension which affects possibility of the effect which operates to the line and span, (ⅲ) Tension of wire material the tensile force which is relation, (ⅳ) Wire thermal expantion which relates with a standard temperature, (ⅴ) Curve radius, (ⅵ) Wind velocity, (ⅶ) Thermal range of overhead contact wire and mechanical design of tension mechanism etc.