Standard Bus Duct Sizes

Air ducts sizing air flow and required duct area.

Standard bus duct sizes.

For isolated phase duct it is limited to amp ratings up to 5000a continuous. Air ducts friction loss diagram major loss diagram for air ducts si units. In electric power distribution a bus duct also called busway is a sheet metal duct or also cast resin insulated containing either copper or aluminium busbars for the purpose of conducting a substantial current of electricity. Low voltage drop high short circuit withstanding capacity high mechanical strength.

It includes all accessories associated with all types of duct as does ansu. Suitable to use in aggressive atmospheric conditions e g. Standard 3 hours fire rating non chimney effect e30 and e90 according to din 4102 12 explosion protected zone 2 zone 22 according to en60079 0. This standard covers the design manufacture testing and ratings of all types of metal enclosed bus duct including cable duct systems.

It is an alternative means of conducting electricity to power cables or cable bus. Non segregated phase bus duct. Eaton s comprehensive portfolio of busway solutions offers endless possibilities for meeting today s ever changing power requirements. Ventilation systems for ventilation and air handling air change rates ducts and pressure drops charts and diagrams and more.

Chemical oil and gas industries etc. Go to pow r way iii busway. Originally a busway consisted of bare copper conductors supported on inorganic. Go to pow r flex busway.

Air ducts velocity diagram air flow volume duct. The duct size must adequately handle air flow intake and return in order for an hvac system to operate at optimal levels.