Based on the concept of thermal expansion, why are power lines left lose when connected to posts?
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36
Answer:
During transmission of electricity, heat is being dissipated. The heat generated by cables is being minimized via high voltage transmission. The effect of weather and the internal temperature of the cable make it necessary to let the cables a little bit loose.
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1
Thermal expansion refers to the expansion of an object due to supply of heat that’s provided .
During the winters ,.i.e when the temp is cool , the wires will begin to contract or come closer due to cooling .....
similarly during the summers .i.e when the temp is high the wires expand or become loosely held .
Therefore the wires need to be left a little lose so that during these changes in its length it doesn’t tear off ....
Hope this answer is satisfactory
During the winters ,.i.e when the temp is cool , the wires will begin to contract or come closer due to cooling .....
similarly during the summers .i.e when the temp is high the wires expand or become loosely held .
Therefore the wires need to be left a little lose so that during these changes in its length it doesn’t tear off ....
Hope this answer is satisfactory
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