Air type busbarIt is suitable for AC three-phase four-wire, three-phase five-wire, frequency 50~60Hz, rated voltage 660V, rated working current 250~6000A distribution systems, undertaking distribution tasks, mainly applied in the connection between low-voltage distribution boxes and medium to large loads, modern workshops, factories, and high-rise buildings. Now, let's understand the main uses of air type busbars!

　　1. Main uses and applicable scope of air type busbars

　　Air type busbars are suitable for three-phase four-wire or three-phase five-wire distribution lines with a rated working voltage of 660V, rated working current of 250~2500A, and frequency of 50Hz. They have a compact structure, high insulation strength, large current transmission, good compatibility, stable electrical performance, and convenient installation and maintenance, widely used in distribution systems of industrial and mining enterprises, high-rise buildings, public facilities, etc.

　　2. Structure and usage environment of air type busbars

　　The surface treatment of the air type busbar shell is an important task, including processes such as pickling, phosphating, drying, powder spraying, and curing. The shell with a polyester epoxy powder coating has strong surface adhesion, can be maintained for a long time, and plays an insulating role.

　　1. Conductive copper column - composed of pure copper columns, the surface of the conductive copper column terminals must be uniformly tin-plated.

　　2. Insulating material - composed of high-strength insulating plastic blocks made of polytetrafluoroethylene and polycarbonate.

　　3. Fixed bolts, insulating sleeves, cover plates

　　The installation site of air type busbars should not exceed an altitude of 2000m, with surrounding air temperatures below 40°C and above -5°C. The average temperature of the product within 24 hours should be below 35°C, and the relative humidity of the air should be below 50% at 40°C and below 90% at 20°C. Clean surrounding air, free from corrosive and insulating gases.

　　3. Technical performance of air type busbars

　　1. Air type busbars should meet the requirements of technical specifications.

　　2. Air type busbars are suitable for AC power sources with a rated voltage below 660V and a frequency of 50Hz. The busbar ensures long-term operation at rated current and 110% rated voltage. When the closed busbar operates at rated current for a long time, the high temperature at the busbar contact points should not exceed 60°C. The closed type busbar should have an insulation resistance of over 20M under normal conditions of 20°C and humidity of 50~70%.

　　3. Air type busbars can withstand AC voltage (3750V, 50Hz) for less than 1 minute without damage or flashover.

　　The above introduces the main uses of air type busbars. For more information,vertical shaft bridge frames, fireproof bridge frames, distribution boxesplease feel free to contact us!