prEN 3197

Aerospace series - Design and installation of aircraft electrical and optical interconnection systems prEN 3197

Publication date:   Sep 25, 2025

Scope

This document provides instructions on the methods to be used when designing, selecting, manufacturing, installing, repairing or modifying the aircraft electrical and optical interconnection networks, also called Electrical Wiring Interconnection System (EWIS), and Optical fibre Interconnection Systems (OFIS), subject to the following limitations:
- It is recognized that the installation practices contained in this document do not necessarily represent the full requirements for a safe and satisfactory electrical and fibre optic interconnection system.
- In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. However, nothing written in this document overrides the specific requirements of a Design Authority, the Airworthiness Requirements, applicable laws or any regulation from the regulatory authorities, unless a specific exemption has been obtained.
This document lists the main relevant European Standards related to EWIS and OFIS in Annex A.