Cast busbar-also known as epoxy resin product or fully insulated busbar-is a high-protection power distribution device manufactured by vacuum casting the entire busbar conductor system in a premium epoxy resin composite. This process eliminates air gaps between conductors and the shell, forming a dense, solid, fully enclosed insulated structure. Cast busbar is renowned for its exceptional insulation strength, ultra-high protection rating (IP68), superior fire resistance, and outstanding environmental durability-designed specifically for harsh environments with extreme humidity, dust, corrosion, or fire hazards. It is the ultimate safe power distribution solution for special fields like mining, shipping, chemical processing, and underground facilities.
The core performance of product stems from its "full casting" process. Under vacuum conditions, liquid epoxy resin fully penetrates and encapsulates all conductors and connections, curing into a seamless, airtight solid insulation structure. This design delivers multiple advantages: excellent insulation with high dielectric strength and minimal partial discharge; IP68 protection enabling long-term operation in water or high-humidity, dusty environments; flame retardancy and fire resistance (epoxy resin meets B1 or higher standards, emitting no toxic gases and maintaining insulation integrity during fires); high mechanical strength resisting impact and vibration; and strong corrosion resistance against chemical gases and salt spray.
Cast busbar is widely used in harsh industrial environments (coal mines, metal mines, cement plants), marine and offshore engineering (ship cabins, offshore platforms, shore power systems), chemical and pharmaceutical facilities (corrosive gas environments), and underground infrastructure (subway tunnels, utility corridors). It is critical for fire safety-critical applications (fire pump rooms, emergency lighting) and water-rich areas (sewage treatment plants, swimming pools). Offering absolute environmental safety, electrical reliability, and low maintenance requirements, product ensures long-term, safe operation in the most challenging conditions.
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