IEC60811-1-4 Low Temperature Impact Test Apparatus
1. Introduction
Low temperature impact test apparatus is designed according IEC60811-1-4 clause 8.5 and figure 1. The apparatus for impact test at a low temperature should work with low temperature chamber and it should be placed on a 40mm thick sponge rubber pad. The apparatus is to perform an impact test from 100mm to power cables, flexible cables and cords with PVC insulation and sheaths at a low temperature. The mass of the falling weight is determined by the overall diameter of the cable (see below table 1 and table 2). After the test, no cracks of the insulating sheaths shall be visible with normal or corrected vision without addition magnification.
2. Specification
| Model | PG-LTI-2 |
| Working Station | 1 |
| Falling weight | 100g, 200g, 300g, 400g, 500g, 600g, 750g, 1000g, 1250g, 1500g |
| Falling impact height | 100mm |
| Steel block | Φ20, bottom arc: R300, 100g |
| Cool time | >16h |
| Test temperature | as per the type of PVC compound |
| Steel support | Thickness: 40mm, Weight: 10±1KG |
| Release mode | Manual, mechanical release |
| Standard conform to | IEC60811-1-4 clause 8.5 and figure 1 |
Table 1: Fixed cable samples, the falling weight used in test specified in below tables:
OD mm | Falling weight (g) | |
> | <&= | |
– | 4.0 | 100 |
4.0 | 6.0 | 200 |
6.0 | 9.0 | 300 |
| 9.0 | 12.5 | 400 |
12.5 | 20.0 | 500 |
20.0 | 30.0 | 750 |
30.0 | 50.0 | 1000 |
50.0 | 75.0 | 1250 |
75.0 | – | 1500 |
Table 2: Samples of soft cable, soft wire and communication cable, the falling weight should be specified in below table:
OD mm | Falling weight (g) | |
> | < & = | |
Flat cord | 100 | |
– | 6.0 | 100 |
6.0 | 10.0 | 200 |
10.0 | 15.0 | 300 |
15.0 | 25.0 | 400 |
25.0 | 35.0 | 500 |
35.0 | – | 600 |
