Refractory type of busway

The fire-resistant busway is specially used for the power supply of fire-fighting equipment and cannot be used for other purposes. Therefore, the busbar has good heat resistance and heat insulation, and the heat energy of the busbar cannot be dissipated, so it cannot be used at full load for a long time. Except for the refractory busway, other busbars cannot operate at full load for a long time. The difference between refractory bus duct and fire-resistant bus duct: The shell and insulation layer of refractory bus duct are made of fire-resistant materials with high temperature resistance ≥ 1100 ℃ and insulating materials with high temperature resistance ≥ 300 ℃. The fire resistance time of this product is 60 minutes, 90 minutes, 120 Minute and 180-minute types, when the temperature reaches a high temperature of 920 ~ 1050 ℃, it will burn, and it can run for more than 8 hours at full load. Fire-proof busway: ordinary busway or busway with fire-proof smoke spread is equipped with fire-proof partition, and some shells are coated with fire-proof paint, so that the heat energy can be transmitted to the interior within a specified time, the busway can operate normally, and the fire burning temperature can reach 800 degrees The fire resistance time is 30 minutes, 40 minutes and 60 minutes respectively.