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Unique ball pressure is to used to check the minimum
gravitational force at a specific point under constant
temperature & time duration to check the quality of raw
material of electrical socket as per IS- 1293 : 1988
clause 24.1.2 . The ball pressure is completely made up
of SS-304 dully polished with centre pivot of 5 mm ball
(2.5 mm radius) to exert a pressure of 20N on the
surface of insulating material. The whole unit is being
kept with sample in a heating oven having temperature of
125 deg. C +/ - 5 deg.C & is kept for one hour duration
after the heating is over.
The impression of the ball on insulating material is
measured by magnifying glass scale provided with unit &
the compliance is being checked accordingly.
The unit is housed in a beautiful powder coated cages to
keep it stretches free.
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