Hebei Power Grid is the hub of power flow collection and transmission in North China. At present, it has formed a UHV AC "two stations and three channels", a 500 kV "four horizontal and two vertical" backbone grid, and a 220 kV "seven divisions" power supply pattern. Line 11 of the 3 stations directly supplies power to Beijing, and undertakes the important responsibility of serving the coordinated development of Beijing-Tianjin-Hebei, ensuring the security of power supply in the capital, and helping the transformation of the energy structure.

In recent years, the development of the power grid has achieved leaps and bounds. The load in both winter and summer has exceeded 40 million kilowatts, and the power grid has operated safely for more than 10,000 days. In recent years, Jiangsu Firemana Safety Technology Co., Ltd. has cooperated deeply with Hebei Electric Power in cable fire testing related equipment, and provided Hebei Electric Power Research Institute with Phinix brand smoke testing equipment, heat-resistant and flame-retardant experimental equipment, cable quality Detection device, heat-resistant experimental equipment, etc. Provide assistance for the construction of the type cable testing laboratory of Hebei Electric Power Research Institute.