An underground cable tunnel ventilation design study in Guangzhou

Applied large section tunnel to hold high voltage cable to transmit electricity is the trend of urban development,so the electricity tunnel is an important part of the power grid,which ventilation design has its uniqueness.This paper introduced a power cable tunnel ventilation program,including program of mechanical ventilation,vent design,the determination of ventilation rate,the arrangement of ventilation well,etc.Taking an underground cable tunnel as an example,a further discuss for the best ventilation program was carried.