BS EN 3475-705:2022

This standard BS EN 3475-705:2022 Aerospace series. Cables, electrical, aircraft use. Test methods is classified in these ICS categories:

• 49.060 Aerospace electric equipment and systems

This document specifies the process to be applied for measuring the contrast of wire and cable identification markings against the background of the unmarked wire insulation. It has been developed primarily to define a reproducible process of contrast value determination for use both to determine the intrinsic laser markability of wires at the time of manufacture or later, and to enable electrical wiring systems manufacturers to ensure that the whole process of wire marking is carried out to the required standard.