本文件规定了EN 50163:2004中规定的、用于室内和室外安装的、具有牵引电压和频率的交流电用预制金属封闭牵引开关设备的要求。外壳可包括固定和可拆卸组件，并可填充液体（液体或气体）以提供绝缘。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies requirements for prefabricated metal-enclosed traction switchgear for alternating current with traction voltages and frequencies as specified in EN 50163:2004 and used in indoor and outdoor installations. Enclosures may include fixed and removable components and may be filled with fluid (liquid or gas) to provide insulation.All current amendments available at time of purchase are included with the purchase of this document.