EWIS connectors and cables are components used in the Aircraft Electrical Circuit Interconnection System (EWIS). EWIS represents a unified approach to aircraft wiring design, covering all wiring, connectors, terminals, and related equipment required for transmitting power and signals, transmitting information from sensor systems to pilots, and then conveying their instructions to engines and other functional equipment on the aircraft.
In 2007, the Federal Aviation Administration (FAA) introduced EWIS due to various factors, including several high-profile flight accidents related to electrical wiring, aging transportation systems, and the diffusion of advanced technology in aircraft. Meanwhile, the European Aviation Safety Agency (EASA) has implemented similar regulations and guidelines to ensure the consistency and safety of European aircraft wiring systems.
With the development of new models such as electric vertical takeoff and landing (eVTOL) aircraft and urban air/advanced air traffic (UAM/AAM) air taxis, EWIS design continues to evolve. Connector companies, including TE Connectivity, are collaborating with regulatory agencies to test and develop interconnect products that optimize size and weight of components and cable assemblies.
Standardization:
EWIS is not a single standard, but a set of regulations and guidelines related to the design, installation, inspection, and maintenance of aircraft electrical wiring systems. These regulations help ensure the safety and reliability of aircraft electrical systems. The management rules of EWIS are outlined in Part 25H of the Federal Aviation Regulations (FAR) of the Federal Aviation Administration (FAA), titled "Certification of Electrical Interconnection Systems for Transport Aircraft" (2007).
Product:
In order to obtain approval from EWIS, various interconnect products and other components were designed and tested. Connectors, wires, cable components, as well as enclosures, fasteners, and cable management, must meet strict quality and performance requirements.
Market and Application:
EWIS was originally developed for commercial and military aircraft, but its principles and components are applicable to many industries beyond aviation, as long as complex electrical systems require reliable and efficient operation. Such as spacecraft, missiles, and satellites; Electric and hybrid vehicles; Commercial trucks and buses; Merchant ships, submarines, and yachts; Railway; And industrial and data communication applications.
