EWIS system design: Aircraft wire maintainability

January 19, 2016 Michael Traskos

The SAE Wire Installation Guidance document, AS50881, provides guidance on considerations for designing an aircraft wiring system. In this article, we examine sections of the AS50881 and discuss how each of these sections should be addressed and what factors should be considered when designing an aircraft’s Electrical Wire Interconnection System (EWIS). For this area, there […] Read more

What is the cost of arc track resistance testing?

December 30, 2015 Michael Traskos

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

More Electric Aircraft (MEA) Conference, December 2015

December 17, 2015 Michael Traskos

The second conference on More Electric Aircraft (MEA) Wire and Cable was held in Hamburg, on December 1-3, 2015. This conference brought together various groups that are focused on the future of aircraft and the technologies necessary to take advantage of the benefits MEA has to offer. Here is a brief overview of some of […] Read more

Completed aircraft wire harness testing

October 30, 2015 Michael Traskos

When it comes to examining aircraft wire systems, a lot of time is spent examining the performance of individual components like wires, cables, connectors, and pins. However, when we install complete aircraft wire harnesses, they must work in the fully assembled aircraft. They must endure the harsh conditions, various environments, and regular maintenance. To ensure […] Read more

Latest news on aircraft wire from the SAE’s Fall 2015 wire and cable committee meeting

October 1, 2015 Michael Traskos

The world of aircraft wire is rapidly changing. Lectromec attended this event and is providing a summary of the most current issues discussed during this fall’s SAE Wire and Cable Committee Meeting. Read more

What are the common tests for aircraft wire?

September 19, 2015 Michael Traskos

The hundreds of wire tests that exist for aircraft wire and cable can be categorized into five groups: environmental, electrical, mechanical, chemical, and thermal. In this series, we will look at common tests within each of these categories, what they are, how are they performed, and what the results mean. Read more

Understanding unexpected arc track resistance test results

September 12, 2015 Michael Traskos

Lectromec has been testing wire for the past thirty years. We have seen nearly every conceivable variation of aerospace wire testing. Some tests are straight forward and require little or no additional explanation of the test results; other tests require a fair bit of explanation to understand the test itself and what the results mean. Read more

What is the impact of increased electrical loads on aircraft wire systems?

September 4, 2015 Michael Traskos

With More Electric Aircraft (MEA) being the big push in the industry, it is important to take a moment and think about the wiring system that is going to be supporting these new designs. The following are some of the consequences resulting from an increased electrical load on the aircraft wire system: How much wire […] Read more

Where can I get aircraft wire and cable tested?

August 20, 2015 Michael Traskos

This is a common question for aerospace engineers who are working with the Electrical Wiring Interconnect System (EWIS) as well as aerospace Maintenance Repair and Operations (MRO) professionals. Basically, if you have an EWIS component that needs to be tested, you can either test it yourself or contract with an aerospace wire testing organization. However, […] Read more

What does aircraft wire testing cost for AS22759/87?

August 12, 2015 Michael Traskos

Aerospace wiring systems are often underappreciated by other aircraft system engineers for their complexity. Aerospace wires and cables, like all aerospace components, undergo a rigorous set of qualification tests before they can be placed on an aircraft. Many in the aerospace industry want to know what the cost of aerospace wire testing is. Wire tests […] Read more

By: Michael Traskos