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『Calculation method for current carrying capacity of wires』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. Core calculation formula for wire current carrying capacity
The core calculation formula for wire current carrying capacity is: I=K × S × Δ θ/ρ × √ (t/(1+α × Δ θ)). The following is a detailed explanation of the formula: I: represents the maximum current allowed to pass through, in amperes (A). This is a key indicator of the current carrying capacity of a wire, determining the amount of current that the wire can safely transmit under specific conditions. K: The comprehensive correction coefficient is a coefficient obtained based on various factors such as the material, structure, and heat dissipation conditions of the guide line. The magnitude of K value will directly affect the current carrying capacity of the wire. S: The cross-sectional area of the wire is measured in square millimeters (mm ²). The larger the cross-sectional area of a wire, the greater the current it can carry. Δ θ: Temperature difference between the conductor and the environment, measured in degrees Celsius (℃). It represents the difference between the conductor temperature and the ambient temperature. The larger the temperature difference, the stronger the heat dissipation ability of the wire, which can carry a larger current. ρ: The resistivity of a conductor material is measured in ohms meters (Ω· m). The resistivity reflects the degree to which a conductor material impedes current flow. The smaller the resistivity, the better the conductivity of the conductor, and the greater the current it can carry. t: The maximum allowable temperature of a conductor is in degrees Celsius (℃). This is the highest temperature that the wire can reach under normal operating conditions. Beyond this temperature, the wires may be damaged due to overheat
