Supply Groove copper busbar

Copper busbar is used as a transmission current copper, copper busbar having good electrical conductivity, thermal conductivity, corrosion resistance, high mechanical strength, no low-temperature brittleness, easy welding, easy press working, now widely used in switchgear bus and generator, transformer lead wire. Its cross section: a thickness of 4 ~ 31.5mm, a width of 16 ~ 125mm. Bus conductor allow current resistance and heat exchange surface area of ??co-related, although smaller circular skin effect, but its cooling surface area is small, generally not be used. Rectangular conductor has a larger cooling surface area, due to the single common conductor cross-sectional area not exceeding 1200mm2, when used to deliver high current, requires the use of a number of rectangular bus parallel bus group, but because of parallel rectangular bus thermal conditions deteriorate, generally should not use more than two to three buses. For transporting large current bus, the general trough bus, compared with a number of rectangular bus, which can greatly reduce the skin effect, the current distribution more uniform cooling conditions or. The choice should be determined depending on the size of the bus load size. See GB QB 5585.2 "electrical copper, aluminum and its alloy bus, copper bus" Hotline: 0513-88365898 Nantong billion Electric Co., Ltd.