It can be explained in terms of
these three factors 1)Cost factor 2)Temperature
rise and 3)Device design.
The distributed capacitance and inductance are directly
proportional to frequency along the length of
transmission line. Losses increase when
frequency increases, asian countries are not that
strong economically to let these losses happen or
cost factor to increase. Next asian countries have
hot weather conditions and frequency increase
will cause tepmreature rise and global warming
can occur so higher frequency is avoided. West
mostly experiences winter season so they keep
frequency a bit higher to nuetralize the effect.
Thirdly it is upto the devices and appliances
design that matters.
Answered by #ameer
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