电缆隧道火灾事故特点与灭火系统研究综述

基于近年来国内外电缆隧道火灾事故统计数据，文中总结了电缆隧道火灾事故发生的原因和特点，详细介绍、分析了目前应对电缆隧道火灾的各种消防灭火系统，如水喷雾灭火系统、高压细水雾灭火系统、气体灭火系统、气溶胶灭火系统、超细干粉灭火系统等。针对不同电缆隧道消防灭火系统的选择提出了推荐建议，认为对于保护长距离、大容积的电缆隧道，应优先考虑高压细水雾灭火系统，其次为超细干粉灭火系统；对于电缆接头或其他局部灭火重点防护区域可考虑超细干粉灭火系统等；不建议在长距离、大容积的电缆隧道内使用气体灭火系统、水喷雾灭火系统和气溶胶灭火系统。

Research Review on Characteristics of Cable Tunnel Fire Accident and Fire Extinguishing System

Based on the statistical data of cable tunnel fire accidents at home and abroad in recent years, the causes and characteristics of cable tunnel fire accidents are summarized and the various fire extinguishing systems are introduced, such as water spray fire extinguishing system, high-pressure water mist fire extinguishing system, gas fire extinguishing system, aerosol fire extinguishing system and ultra-fine dry powder extinguishing system. According to the analysis of technology and economics, it is recommended to adopt the high-pressure water mist fire extinguishing system in the long distance and large volume cable tunnels, and the ultra fine dry powder fire extinguishing system is recommended in the cable joints or other key protection areas for local fire extinguishing. However, it is not recommended to use gas fire extinguishing system, water spray fire extinguishing system and aerosol fire extinguishing system in long distance and large-volume cable tunnels.