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|Diameter Of Pipe:||3,4,5,6,7,8,9,10,12,14,16(mm)||Diameter Of Test Bar:||9.6,12.5,16,20,25,31.5,40,50(mm)|
Flexing Test Apparatus,
High Frequency Spark Tester
This test conforms to the standard requirements of IEC540. It is used for cold bend test of the circular insulation wire core whose diameter is small and the sector-shaped insulation wire core which can not be used for dumbbell. The apparatus shall be held in a refrigerator before and during the test.
The diameter of the mandrel shall be between 4 and 5 times the diameter of the test piece (see below).
The mandrel shall be uniformly rotated at a rate of one revolution in about 5 s and the number of turns shall be as specified in the following table.
1. Diameter of samples: 2.5～12.5mm
|Overall diameter (d) of the test piece (mm)||of turns Number|
2. Diameter of pipe: 3,4,5,6,7,8,9,10,12,14,16(mm)
3. Diameter of test bar: 9.6,12.5,16,20,25,31.5,40,50(mm)
Contact Person: Lynette