Standard:
IEC60811-1-4 clause 8.1 and 8.2, common test methods for insulating and sheathing materials of electric and optical cables-part 1-4:Methods for general application-Test at low temperature.
Application:
The cold bending test machine is intended for cables with an overall diameter up to and including 12.5 mm, or for flat cables with a major axis dimension up to and including 20 mm. It measures their strength when bending under cold temperatures.
Test sample:
Cables with an overall diameter up to and including 12.5 mm, or for flat cables.
Parameters:
Station:2
Diameter of samples:Φ2.5mm ~12.5mm
The number of turns: 2 to 10 turns, and the number of turns shall be as specified in the following table:
| Overall diameter (d) of the test piece (mm) | Number of turns |
| D≤2.5 | 10 |
| 2.5﹤d≤4.5 | 6 |
| 4.5﹤d≤6.5 | 4 |
| 6.5﹤d≤8.5 | 3 |
| 8.5﹤d | 2 |
Test condition: The diameter of the mandrel shall be between 4 and 5 times the diameter of the test piece. Standard equip with the mandrel :Ф4、Ф5、Ф6、Ф7、Ф8、Ф10、Ф12、Ф14、Ф16、Ф18、Ф20、Ф24、Ф37.5mm
Rotation speed: 5S/ turn, manual control
Diameter of pipe: Ф3.5、Ф6、Ф10、Ф12、Ф16mm, each of two pieces
