[[wiki-architecture]] · [[Urban Planning and City Architecture]] · [[ARCHITECTURE]] · [[000]] # Common rail (electricity) In electrical engineering, a common rail (shortened to COM) is a shared path between different electrical routes in an electrical circuit. For example, a device or circuit board might have a power rail or a ground rail, which components are attached to, so all the electrical charge flowing through different components is drawn from/collected into a single conductor line. The ATX standard for PC power supplies defines a set of common rails as to ground the power, these rails are designated as COM and all have black wires. == References == - [[Professional Practice/Codes & Standards/National Building Code of India/Part 08 - Building Services]] - [[Building Construction/Estimating & Costing]] - [[Professional Practice/Codes & Standards/National Building Code of India]] - [[Environmental Design/Strong Foundations for Sustainable Constructions/satellites]] - [[Environmental Design/Energy Efficiency]] - [[Environmental Design/Sustainable Materials]] - [[Building Construction/Construction & Materials/Building Material]] - [[Environmental Design]] - [[Building Services/Fire Engineering]] - [[History and Theory/Temple Architecture]]