IEC60884-1 Cold Bend Test Apparatus
IEC60884-1 Cold Bend Test Apparatus
1. Introduction
The cold bend test apparatus is designed according to IEC60811-504, IEC60811-1-4 clause 8.1 and figure 1, IEC60884-1, VDE0472, GB2951.4 and GB2099-94 for bending test at low temperature for insulation of cable. It is applied to the test the cores of circular cross-section having an external diameter up to and including 12.5mm, sector shaped cores when it is not possible to prepare dumb-bells, and cables with an overall diameter up to and including 12.5mm or flat cables with a major axis dimension up to and including 20mm. The apparatus is consisted by one revolving mandrel and guiding device, and it shall be held in a suitable low temperature cabinet before and during the test.
2. Specification:
Overall diameter of the test piece |
Φ2.5mm~Φ12.5mm |
Diameter of mandrel |
Φ4.0mm~Φ46mm (totally 14 pieces) |
Tube sleeve |
Φ3.5mm*2, Φ6mm*2, Φ10mm*2, Φ12mm*2, Φ16mm*2 |
Number of turns |
2~10 turns |
Rotate speed |
1r/5s |
Working station |
2 |
Material |
SUS304 stainless steel |
Working temperature |
-15℃±1℃ |
Overall diameter (d) of test piece (mm) |
Number of turns |
d≤2.5 |
10 |
2.5d≤4.5 |
6 |
4.5d≤6.5 |
4 |
6.5d≤8.5 |
3 |
8.5d |
2 |
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