Fall 2017 SAE Wire and Cable Meeting Update

September 27, 2017 Michael Traskos

Every six months, the SAE wire system installation and wire/cable subcommittees come together to advance the state of the industry. This year, the Fall meeting was held in sunny Temecula, California. The following are some of the noteworthy items from this meeting. High Voltage Endurance The 8D task group on the evaluation of high voltage […] Read more

Next 15 Years of EWIS Design

February 24, 2017 Michael Traskos

The field of aircraft Electrical Wiring Interconnection Systems (EWIS) has changed significantly in the last two decades. These changes have impacted the design, installation, maintenance, and sustainment of electrical wiring systems on aircraft. For example, increased electrical load requirements, materials restrictions, system safety assessment, and new regulations are just some of the areas that have […] Read more

Impact of Corona on Electrical Systems

February 3, 2017 Tristan Epp Schmidt

Corona is an area of electrical systems that many have some knowledge, but often only to the point of knowing that there is a voltage that should not be exceeded. It is common knowledge that factors, such as pressure, have an impact on when and how corona will happen, though the source of corona is […] Read more

AS4373 – Testing Aerospace Cables – Part 1

January 10, 2017 Michael Traskos

When testing aerospace wire, there are several test standards that might be considered; however, the one that is most commonly referenced is the SAE AS4373 “Test Methods for Insulated Electric Wire” which covers a wide range of mechanical, electrical, environmental, and workmanship tests. In this first article of a two part series, we describe the […] Read more

Age Degradation

Some wire insulation types have well-defined accelerated aging processes, whereas others are rather non-active in terms of standard aging (heat, strain, and humidity). This procedure provides a vetted process for assessing the age degradation process for polyalkene wire. For non-polyalkene insulated wire/cable types, see Thermal Index. Life cycling of polyalkene wire is a three-step process […] Read more

Insulation Resistance

This test determines the insulation resistance of a finished wire sample. Insulation resistance is of interest in high impedance circuits and as an insulation process quality control test. When used as part of a wire/cable environmental testing, prolonged thermal exposure, and/or extended high voltage testing, changes in the insulation resistance can be used as an […] Read more

4 aspects of wiring selection for special aircraft applications

February 4, 2016 Michael Traskos

Not all wires are created equal. Through the years, Lectromec has learned the best practices for wire selection that would ensure the Electrical Wire Interconnect Systems’ (EWIS) longevity. There are thousands of wire standards for the aerospace industry. These include: the National Electrical Manufacturers’ Association (NEMA) standards, the Society of Automotive Engineers (SAE) standards, as […] Read more

Adherence of Plating

Some wire insulation types have a well-defined accelerated aging processes, whereas others have a rather non-active one in terms of standard aging (heat, strain, and humidity). This procedure provides a vetted process for assessing the age degradation process for polyalkene wire. The life cycling of polyalkene wire is a three-step process that starts with placing […] 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

What does an aircraft wire testing lab look like?

October 13, 2015 John Gilroy

It is quite possible many aerospace professionals have never seen the inside of an aircraft wire testing lab. If you haven’t had a chance to see our lab, here we present a quick tour. Read more

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