Flexible Cables Flexing Tester

Flexible Cables Flexing Tester

Product details: Model ZLT-QL1.This Tester is checking mechanical strength of completed flexible cables. This test does not apply to flexible cables with cores of nominal cross-sectional area greater than 4m㎡,nor to cables having more than 18 cores laid up in more than two concentric layers.

This apparatus consists of a carrier C(see IEC60245-2 Figure 1),a driving system for the carrier and four pulleys for each sample of cable to be tested. The carrier C supports two pulleys A and B, which are of the same diameter. The two fixed pulleys, at either end of the apparatus, may be of a different diameter from pulleys A and B, but all four pulleys shall be so arranged that the sample is horizontal between them. The carrier makes cycles (forward and backward movemenls) over a distance of 1 m at an approximately constant speed of 0,33m/s between each reversal of the direction of movement.

A sample of flexible cable about 5 m long shall be stretched over the pulleys, each end being loaded with a weight. The mass of this weight and the diameter of pulleys A and B are given in following table