The Cross-sectional Area Of The Wire

The cross-section of the electrical wire refers to the cross-section of the copper core in the wire. Commonly used wire cross-sections in residential houses are 0.5mm², 1mm², 1.5mm², 2.5mm², 4mm², 6mm², 10mm², 16mm², 25mm², 35mm², 50mm², etc.

The cut-off flow refers to the working current that the wire can continue to work at room temperature and can guarantee a certain service life. The size of the interception of a wire is related to the size of its cross-sectional area, that is, the larger the cross-section of the wire, the larger the current it can pass. If the line current exceeds the current carrying capacity, the service life will be shortened accordingly. If the line is not changed in time, various electrical accidents may occur.

The larger the cross-section of the wire, the larger the current it can pass.

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