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IEC60884 Clause 24.4 Testing Device For Checking The Impact Resistance At Low Temperature Test Apparatus
Standard: IEC 60884-1 2013 clause 24.4, 30.4, figure 27 and 42, IEC60811-1-4, VDE0620 and so on
Application: This device is use for checking the impact resistance at low temperature of electrical accessories, as well as wires and cables.
Test sample: Electrical accessories, surface type mounting boxes, screw glands, covers, wires and cables etc.
Feature: This device should be used with low temperature chamber, the device should be placed on the sponge rubber pad of about 40mm thick, and should be put in the low temperature chamber before and during the test.
Parameters:
| Model | Impact test apparatus H924 | Impact test apparatus H924A |
| Station | Single station | Three stations |
| Weight of the impact hammer (g) | 1000±2 and 100±1 | 100, 200, 300, 400, 500, 600, 750, 1000, 1250, 1500(See table 1 and 2) |
| Height of the impact (mm) | 100 | 100 |
| Steel intermediate piece | Φ20, bottom end rounded R300, 100g | Φ20, bottom end rounded R300, 100g |
| Standard | IEC60884-1 24.4 Figure 27 IEC60884-1 30.4 Figure 42 | IEC60811-1-4 |
| Operation | Manual, mechanical release | Manual, mechanical release |
Table1 For power cables for fixed installation, the mass of the hammer for testing the samples shall be as given in the following table:
| Overall diameter (mm) | Mass of hammer (g) | |
| Above | Up to and including | |
| - | 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 For flexible cables and cords and telecommunication cables, the mass of the hammer for testing the sample shall be as follows:
| Overall diameter (mm) | Mass of hammer (g) | |
| Above | Up to and including | |
| For flat cords | 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 |
Picture for reference :
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