Flex Endurance Test Basics

November 6, 2022 Chris Wollbrink

While most wire installed in an aircraft is placed in static conditions, there are still several harnesses that must support regular flexing. Applications such as landing gears, wiring attached to panels/doors, and flight control surfaces have regular flexing. What is the best approach to selecting and verifying wires/cables for these applications? It turns out that there are several options. Read more

International Test Standards for Aircraft Wire Tests

January 15, 2019 Michael Traskos

Frequently, Lectromec’s articles have focused on wire and cable testing from US-focused standards such as the SAE and US military (MIL) documents. While these are standards frequently cited, there are other standards organizations that support the aerospace wiring community. Thankfully, many of the standards share a common base and, as is the case with many of the SAE standards, these have been harmonized with European standards. In this article, we will review some of the European wire/cable test standards, variation from similar test methods, and their availability in Lectromec’s lab. Read more

European Arc Track Resistance Testing

December 2, 2016 Alexander Petrov

The arc track resistance test is a basic performance test for most aircraft power carrying wires. As with any component assessment tests, there are many ways to evaluate a wire insulation’s propensity for arc tracking. The European wet short circuit test standard, EN3475 Method 605, is one means to determine the arc track resistance performance […] Read more