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If the
cross sectional area of conductor is less than 100mm².
Then specimen
must be into testing chamber for freezing for one hour, after
that immediately
roll specimen around the circular rod of which diameter is
specified in uniform
speed. Otherwise, the cross sectional area is beyond 100mm².
Then specimen
firstly be rolled into a circular & put into chamber for
freezing one hour. Afterwards, immediately roll specimen around
the rod by opposite direction. Finally, take out of
specimen for checking weather its surface has crack or fissure
or not.
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