The mechanical linear PFH automatic fire extinguishing device is a substation intelligent fire fighting technology that integrates monitoring, analysis, early warning and fire fighting. It can provide effective fire safety protection for the substation, solve the problem of fire safety hazards in the unattended substation, and realize intelligent and automatic fire fighting.

In recent years, with the increasing scale of China's power market, power fire safety has also been highly valued by the country, and higher standards and requirements have been put forward for fire prevention and control in the power industry. As an important part of the power system, with the increasing demand for electricity in the society, and the complexity and particularity of the environment, structure composition and function application of the power equipment (dry/wet transformer, distribution cabinet, cable trench, distribution room, electrical cabinet, etc.), the potential fire hazards of the power equipment and voltage level in the power station and substation are also increasingly prominent, which brings great challenges to the security of the power grid and power supply.

The mechanical linear PFH automatic fire extinguishing device takes PFH as the main fire extinguishing agent. It is a colorless, odorless, safe, environmentally friendly and efficient new fire extinguishing agent. It is not corrosive to electrical equipment and has no residue after fire extinguishing and can be physically degraded by itself. In addition, it is widely used in the field of electric power due to its good electrical insulation. At the same time, the core components of the fire extinguishing device are made of stainless steel, which is durable, economical and effective, and further reduces the operating costs of the enterprise while ensuring the safety performance of the power system.

The mechanical linear PFH automatic fire extinguishing device combines the core technologies such as "multi-dimensional perception and early warning technology of substation fire hazards" and "passive wireless temperature measurement technology" to upgrade the substation fire control from traditional passive alarm to intelligent fire management, and automatically identify, alarm and extinguish the fire hazards of power facilities through the mechanical linear fire detection technology, which promotes the construction of the substation intelligent fire protection system.