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『Calculation formula for copper busbar current carrying capacity』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. Comparison Table of Copper Bar Current Capacity
The current capacity of copper bars varies depending on their specifications. The following is information and calculation methods related to the current capacity of common specifications of copper bars: Example of current capacity of common specifications of copper bars. The following data is based on certain conditions (such as ambient temperature of 40 ℃) and is compiled from BEA in Germany. Data from different sources may vary slightly: Quick calculation formula for current capacity of rectangular copper bars. Single layer copper bar current capacity (40 ℃): Formula: Copper bar current capacity=Copper bar width (mm) × Thickness coefficient. Corresponding relationship between thickness and coefficient: Thickness 12mm: Coefficient 20 thickness 10mm: Coefficient 18 thickness 8mm: Coefficient 16 thickness 6mm: Coefficient 14 thickness 5mm: Coefficient 13 thickness 4mm: Coefficient 12 Example: Calculate TMY100 Single layer current carrying capacity of 10 (width 100mm, thickness 10mm): Calculation: 100 × 18=1800A (according to the manual, it is 1860A, with a small error). Multi layer copper barrier early discharge current carrying capacity (40 ℃): double-layer: single-layer current carrying capacity × 1.56-1.58 Example: double-layer TMY100 × 10 current carrying capacity: 1800 × 1.58=2940A (according to the manual, it is 2942A). Three layers: single-layer current carrying capacity x 2 Example: Three layers TMY100 x 10 Current carrying capacity: 1860 x 2=3720A (according to the manual, it is 3780A). Fourth layer: Not recommended for regular use. If calculation is needed, reference can be made to the single-layer current carrying capacity of 2.45. It is recommended
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2. Calculation method for current carrying capacity of copper busbar
There are several main methods for calculating the current carrying capacity of copper busbar: estimation method based on cross-sectional size: The formula for calculating the current carrying capacity of a single copper busbar is: current carrying capacity=width x thickness coefficient.
. The thickness coefficient depends on the thickness of the copper busbar. For example, when the thickness of the busbar is 12mm, the thickness coefficient is 20; Wh