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Arcing Damage

EWIS Design Changes – How to Achieve a Safe Separation Distance

Those familiar with aircraft wire system design know the limited available space in which wiring is usually routed. Often in tight quarters with other wire harnesses, redundant systems, and hydraulic lines, it can be very difficult and intimidating to identify safe separation distances in design and for retrofits. Adding to the complexity, a wire harness […] Read more

Meeting Requirements for EWIS Certification

There are more than 17 parts to the FAA’s Electrical Wiring Interconnection System (EWIS) regulations enumerated in the 25.1700 series. To show compliance with each of these regulations require a thorough subject area understanding. More so, as the EWIS evolves in design, it becomes clear that achieving EWIS certification requires a lot of data. If […] Read more

What is the cost of arc track resistance testing?

Arc track resistance testing is an important topic that is of interest to many in the aerospace industry. In this article we discuss the test itself, common test types, the process, and the price of the test performance. Test methods Among the most common test methods for arc track resistance testing are: the AS4373, MIL-STD-2223, […] Read more

Latest update from the October 2014 SAE Wire Committee Meeting

The meeting for the SAE Fall 2014 8A and 8D groups covered a lot of ground and developments in the aerospace wire and cable world. The SAE Wire Committee Meeting, held in Tempe, Arizona, consisted of three days of meetings, presentations and task group reports. Here are some of the developments from the SAE meeting. […] Read more

2 EWIS insights from a presentation at the AIAA conference

Th 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference was held on January 2010 and included presentations of a wide range of technical papers. From the perspective of EWIS, authors McCabe and Cyphers reported on A Study of Over-Current Protection, Electrical Arcing, and Fire Protection. Their research objective was to gather data for ballistic threats […] Read more