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Ball and socket couplings of string insulator units test According to IEC60120-2020,ANSI/NEMA C29.2B-2013

Posted: 2020-06-03 12:29

The tolerance for the gauges follows the connection standard. For the ball eye, ball clevis, and socket clevis, test gauge is a necessary way to control quality. The “GO” gauge should ask all parts pass through, and the “NO GO” gauge should ask all parts not pass through, only the two gauges both act well, the pars can pass the test gauge.