Resistant to mechanical impact from angular objects

Technical features:

1Pipe length: 1000mm;

2Mass of impact component: 5kg; Material of hammer head: Q345;

Hammer head shape: meets the standardGB7251.5-2008Figure 8:3Drop height: 100mm/200mm (test requirement)/400mm; (electric release)

4Impact energy: 10J (test requirement), 5J, 20J;

5Protective devices with secondary impact;

6The test sample is fixed on the equipment rack, the pendulum is electrically lifted and adjusted, and the impact height of the hammer head is 100-1500mm

7Hammer head material: Q345 high-quality carbon structural steel;

8Equipment size: Approximately 1500 in length, 100 in width, and 3200 in height (mm)

8.2.101.5 Verification of mechanical impact resistance of diagonal objects

This experiment is suitable for all types of outdoor cable connected substation cable distribution panels, outdoor transformer installed substation cable distribution panels, and cable distribution boxes.

The experiment should use the impact test apparatus described in 8.2.101.2.1, a 5kg steel impactor with a shape as shown in Figure 108. When the impactor is raised to a height of 0.4m, it is then dropped to impact the surface of the complete set of equipment under test, with an energy of 20J [see Figure 106A) and Figure 1803)].

8.2.101.2 Verification of Impact Resistance

8.2.101.2.1 Test applicable to outdoor cable connected substation cable distribution panels, outdoor transformer installed substation cable distribution panels, and cable distribution boxes intended for use in ambient temperatures ranging from 40 ℃ to -25 ℃

The experiment should use a pendulum type impact testing device, which includes a flexible hose with an outer diameter of 9mm and a length of at least 1m. The pendulum swings along a vertical arc.

A steel ball with a mass of 2kg is tied to the end of the pipe. It is lifted to a height of 1m and dropped, causing it to collide with the surface of the tested equipment set. The provided impact energy is 20 J [see Figures 106a) and 106b)

The test should include one impact on every vertical surface visible when the complete equipment is in its normal operating position. Each impact test can use different shells.