Key design points include high-quality materials like ABS plastic, aluminum, and stainless steel that resist corrosion and UV degradation. Weatherproof outdoor distribution boxes ensure reliable power distribution in challenging environments by protecting against moisture, dust, and temperature extremes. What is an Outdoor Electrical. On a construction site, outdoor exhibition area, municipal repair project, or temporary industrial workspace, electricity is constantly moving with the job. Weatherability standards and protection design help protect.