Test parameters for compressive strength of PC material African rural lighting electrical Ready Board Box

For the working conditions of high dust, strong sunlight, and easy collision in rural Africa, the compression test of PC polycarbonate lighting electrical ready board follows IEC 60670-1, ISO 604, and the special specifications for outdoor boxes in rural power grids. The core parameters are as follows.

Force bearing area: The standard compression surface is 100cm ² (10cm × 10cm), using a flat and rigid pressure head to cover key stress bearing parts such as the top plate, side plate, door body, and installation area of the box; Place a 0.1-0.2mm brass plate between the pressure head and the box to avoid stress concentration and surface damage. When testing material samples, a 10mm × 10mm rectangular section or a Φ 10mm circular section is used, with a stress area of 100mm ².

Stress duration: Static compression holding for 3 minutes (180 seconds), uniformly loaded throughout the process at a rate of 1-2mm/min, simulating long-term stacking, trampling, and heavy object impact conditions. When testing the material sample, continue to apply pressure until the yield or compression reaches 25% of the original height, record the peak load for 5-10 minutes.

Qualification criteria: After applying a load of 100kg (approximately 1000N), the box should have no cracks, no permanent deformation, and no displacement of internal components, meeting the