A 7 wire copper overhead transmission line has following data: Cross sectional area = 2.2 cm2, weight of wire = 1.4 kg/m, ultimate strength = 8000 kg/cm2, air pressure = 40 kg/cm2, safety factor = 2, find vertical sag for 300 meter place.
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132 kV transmission line has the following data : Wt. of conductor = 680 g/ m. ;. Length
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