On equipment of insulation control of fire-fighting pipelines of tunnels
Chai Xin-yua · Shanxi Architecture · 2011
The paper introduces a new equipment for the insulation control of the fire-fighting pipelines in tunnels, that is, the heating cable low-temperature semi-thermal system, indicates the equipment adopts the advanced and reliable RS485 communicating technique and solves some technical problems in the design and the application of the electric trace heating control equipment in the anti-freezing system of the pipelines, so as to keep the temperature of the insulation and anti-freezing system to be controlled automatically within the permitted scope, and to realize the active insulation and anti-freezing effect of the pipelines.