规定了铁路信号轨道电路用固定电容器和可调电容器，包括性能和尺寸要求，并包括给出例行试验和型式试验的章节。电容（总值和中间值）与公差一起规定。附录给出了测量工作温度的方法以及订单应附带的信息的指南。交叉引用:BS 205BS 442

Specifies fixed and adjustable capacitors for railways signalling track-circuits, and contains performance and dimensional requirements and includes sections giving routine and type tests. The capacitances (overall and intermediate values) are specified together with tolerances. Appendices give guidance on the method of measuring operating temperature and on the information that should accompany an order.Cross References:BS 205BS 442