BS 4521-4-1975 私营铁路道岔规范.第4部分:英国铁路机车不运行的、轴负荷可超过25吨的重型平底钢轨岔道

标准号：BS 4521-4-1975
中文标准名称：私营铁路道岔规范.第4部分:英国铁路机车不运行的、轴负荷可超过25吨的重型平底钢轨岔道
英文标准名称：Specification for railway turnouts for private users - Heavy grade turnouts over which British Railways locomotives do not operate, for axle loads which may exceed 25 tons, using flat bottom rails
标准类型：S12
发布日期：1975/4/30 12:00:00
实施日期：1975/4/30 12:00:00
中国标准分类号：S12
国际标准分类号：45.080
适用范围：Turnouts from straight 4 ft 8$9H in gauge track made from rails dimensionally in accordance with BS 11, section 110A or 113A, in wear resistant steel quality or of cast austenitic manganese steel to BS 1457.