Low Temperature Pressure Impact Test Equipment IEC60884 Figure 27
The specimens are subjected to an impact test by means of an apparatus as shown in figure 27.
The apparatus, positioned on a pad of sponge rubber 40 mm thick, is placed together with the specimens in a freezer at a temperature of (–15 ± 2) °C, for at least 16 h.
At the end of this period, each specimen, in turn, is placed in the normal position of use as shown in figure 27, and a weight is allowed to fall from a height of 100 mm. The mass of the falling weight is (1 000 ± 2) g.
After the test, the specimen shall show no damage within the meaning of this standard.
The height of falling: 10~250mm is adjustable.
Low-temperature impact test sample
Weight of the drop hammer (g)
The height of the impact mm
The socket box and the similar electrical enclosure
GB2099.1-2008 clause24.4, figure 27
The bolt with insulation sheath
GB2099.1-2008 clause30.4, figure 42
The electric cable with PVC sheath
GB2951.4 clause8.5,figure 2
For the samples of laying of cable, the weight of the drop hammer required are as follows:
The external diameter of the samples(D/mm)
The weight of the drop hammer /g
For the samples of flexible cable and telecommunication cable, the weight of the drop hammer required is as follows:
The external diameter of the sample D/mm
The weight of drop hammer /g