Swap bodies andcommercial vehicles - Tarpaulins - Part 2: Minimumrequirements for curtainsiders
Dynamic test of acanvas segment consisting of
On the test sampledefined and illustrated in the diagram, testsare carried out with an oscillating displacement of ± 15 mm withthe following frequency
1 min. at 4Hz (Settlementtest for "reference zero" measurement)
2min.a4Hz
2min.a8Hz.
After the testshave been carried out:
The belt must haveat least a slight residual tension, aloose belt is
unacceptable.
The maximumpermissible slip of the belt in tension is 5 mm at the level of thetensioner lock.
动态测试所需的样品：
带钩和杠杆偏转点之间的长度应不超过 350 毫米。 （此要求对于没有带子操作的张紧器是不必要的）
Static test of acanvas segment with horizontal force consisting of
Elongation test: Atest with a horizontal load of 8 kN is performed on the testsample, theload is applied in the following sequence
2.5 kN for 30s (conditioningcycle, afterit we restart and tensions the canvas segment)
8 kN for 5 minutes.After doing the test
In the range of 2.5kN to 8 kN, thecalculated average stiffness of the test part must be higher than33N/mm.
There must be nochanges in position or any alteration that affects the operation ofthe components.
Breaking test: Inthe next test step, thesame sample must be loaded until a component failureoccurs, anda diagram on the force-displacement must be recorded
静态测试所需的样品
帆布必须配备上下加强件。 中央部分的水平加强件可以省略。
• 水平和垂直带的排列间隔≤600mm。垂直带的总数 X 必须至少相等
• 如果有抓点，则垂直带在抓点边缘的距离必须≤100 mm。
释放，其行为必须清晰明显）
释放手动杆，必须通过激活单独的解• 带钩的垂直耦合深度必须至少为 22.5 毫米。
• 垂直肩带：抗拉强度 ≥23 kN
• 帆布面料：必须证明表中所示要求的合理性