The three most popular materials used for Electrical Distribution Boxes are Thermoset Plastics such as Sheet Molding Compounds (SMC), Engineering Thermoplastics such as Polycarbonate (PC) and Acrylonitrile Styrene Acrylate (ASA) and Epoxy Coated Steel used to make Metallic Deep Drawn. Groups like the National Electrical Code (NEC) and OSHA make these rules to keep you safe. Good boxes use circuit breakers or fuses to stop power fast if something is wrong. Non-Flammable Materials: Polycarbonate and fiberglass are commonly used materials in distribution boxes, as they are inherently flame-retardant. The major requirements are as follows: 1) Flame retardant with Glow Wire Flammability Index at 960°C as per IEC 60695 to ensure that any flame outside the box cannot enter inside and damage equipment and also to prevent any flame within the box from spreading outside. These boxes play a vital role in ensuring safety, reliability, and performance in residential, commercial, and industrial settings. Reasons for material selection: The strength and corrosion resistance of steel plate make it a common material for the box of the distribution box, and its good conductivity also.
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