我国采用高压电网下电力机车牵引列车的铁路，现有二十多条，总长达6875公里。随着电气化铁路的发展，列车火灾的发生机遇增多，火灾的防范扑救日显重要。 China’s high-voltage power grid using electric locomotive traction trains, the existing more than 20, a total length of 6875 kilometers. With the development of electrified railway, the opportunities for train fire increase, and the prevention and suppression of fires becomes increasingly important.