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tell 2 reasons for why only copper is used in domestic
wires& only alluminium in transmission lines ?
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Answer Posted / eng mbanga
Appart from the above reasons, Check the molecular mass of
the two elements on the periodic table.
Alluminium is lighter than copper, hence less weight of the
alluminium makes it easy to suspend on the Pylons as
compared to copper conductors. Weight issues is
insignificate in domestic applications, hence use copper.
Alluminium is more conductive than copper, and hence this
reduces the losses over long distances.
Again, The heat disspation factor of alluminium is higher
than copper, as the resistance of conductor increases as
temperature increases, heat disspation factor plays a mojor
role, hence this keeps the ristance of alluminium lower
than that of copper.
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