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What is tracking test for hand held motor operated electric tools?

Jan 11, 2021

In compliance with IEC 60745 clause 29.3, insulating material, accoss which a tracking path may occur, shall have adequate resistance to tracking ,taking into account the severity of its duty condition.



For parts of insulating material used under servere duty conditions, the test voltage is 175V. If the specimen don’t withstand this test and there is no hazard other than fire, surrounding parts are subjected to the needle flame burner.


For parts of insulating material used under extra servere duty conditions, the test voltage is 250V. If the specimen don’t withstand this test , but withstand the test made with a test voltage of 175V, and there is no hazard other than fire, surrounding parts are subjected to the needle flame burner.



The proof tracking tester ZLT-LDQ1 made by Zhilitong Electromechanical Co., Ltd can carries out tracking test voltage at 175V and 250V , maximum up to 600V test voltage.


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