Aluminum busbar current carrying capacity calculation formula | Copper busbar, aluminum busbar current carrying capacity calculation method

『Calculation formula for aluminum busbar current carrying capacity』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)

How much ampere current can a 1.20 × 2.5 aluminum busbar withstand?

18A current. The cross-sectional area of the aluminum bar is 20 * 2.5=50 square millimeters, and under normal circumstances, it can withstand 50 * 3A -5A, which means 150A -250A; I=P * 1.5 (heating equipment) 12KW * 1.5=18A aluminum row configuration calculation equipment load determination aluminum row heat exchange surface dissipation product cooling equipment load calculation: can refer to the relevant cold storage design manual for detailed calculation. The formula is as follows: Qq=Q1+PQ2+Q3+Q4 Qq - cooling equipment load in the cold room, W; Q1- dismantling sails - maintaining structural heat transfer, W; Q2- cargo heat, W; Q3- ventilation heat flow rate, W; Q4- operating heat flow rate, W; P - load coefficient. Take P as 1.3 for cooling and freezing rooms, and 1.0 for other cooling rooms; By substituting the above formula into the known technical parameters, the load value of the cooling equipment for the cold tourism bridge hail storage can be obtained, which is the cooling capacity that the evaporator needs to provide. Large cold storage should strictly follow the above calculation process.

2. Calculation method for current carrying capacity of copper busbar and aluminum busbar

Copper busbar, as a high current conductive product, is widely used in electrical engineering such as high and low voltage electrical appliances, switch contacts, distribution equipment, bus ducts, as well as ultra large current electrolytic smelting projects such as metal smelting, electroplating, and chemical caustic soda.

. Its characteristics are low resistivity and high bendability. Aluminum bars are used in electric power supply circuit Calculation formula for aluminum busbar current carrying capacity

Calculation formula for aluminum busbar current carrying capacity

s to transmit current and connect electrical equipment, and are made of aluminum material. The calculation methods for the current carrying capacity of copper aluminum bars mainly include estimation methods, commonly used calculation methods, and simplified calculation formulas. In the estimation method, the formula for calculating the current carrying capacity of a single copper busbar is the width (mm) multiplied by the thickness coefficient, while the current carrying capacity of a double busbar is multiplied by a coefficient of 1.5 based on this. The commonly used calculation method includes the calculation of copper busbar current carrying capacity at 40 ℃, which is calculated by multiplying the busbar width by the thickness coefficient. The thickness coefficient varies depending on the thickness of the copper bar, usually 20 for a thickness of 12; When the thickness is 10, it is 18; and so on. The current carrying capacity of a double-layer copper busbar is about 1.58 times that of a single-layer copper busbar, and the current carrying capacity of a three-layer copper busbar is twice that of a single-layer copper busbar. When calculating the current carrying capacity of a copper busbar, temperature will have an impact on it. For example, at 40 ℃, the current carrying capacity of a copper busbar is 0.85 times that of a single-layer copper busbar, while the current carrying capacity of an aluminum busbar is 1.3 times that of a copper busbar. The simplified calculation formula is that the current carrying capacity of a single rectangular copper bar is equal to the width multiplied by (thickness+8.5) A. For example, the current carrying capacity of a 15 * 3 copper bar is 15 * 11.5=172.5A, and the current carrying capac

Aluminum busbar current carrying capacity calculation formula | Copper busbar, aluminum busbar current carrying capacity calculation method

How much ampere current can a 1.20 × 2.5 aluminum busbar withstand?

2. Calculation method for current carrying capacity of copper busbar and aluminum busbar

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