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Electrical Fault and Fire Prevention and Protection

Michael Traskos
The prevention of electrical fires is a common goal for most aircraft systems. Advisory Circular (AC) 25-16, “Electrical fault and Fire Prevention and Protection”, released in 1991, can be considered one of the precursors to the Electrical Wiring Interconnection System (EWIS) regulations. Although the document is now 25 years old as of last month, AC 25-16 provides a wide variety of recommended practices that are commonplace in the EWIS design and installation. Here we review some of the key points addressed in AC 25-16 and considerations with modern EWIS design with respect to electrical fault and fire prevention and protection. Read more

High-speed footage of wire failure near fuel line

Michael Traskos
Introduction As with most fields, the more we learn about a particular topic, the better our understanding of its complexity and the finer details involved. One area Lectromec has done extensive research in is the potential impact of wire failure and electrical arcing (you can find several blog posts and white papers here). In this […] Read more

Latest news on aircraft wire from the SAE’s Spring 2016 Wire and Cable Committee Meeting

Michael Traskos
he Spring 2016 SAE AE-8A and 8D wire cable standard and wiring installation guidance committee meetings were held last week in Denver, Colorado. The continuing process of wire improvement, both in terms of product and installation, was held over a three-day period covering dozens of topics critical to improving the reliability of EWIS. The following are some of the updates from this meeting. Read more

EWIS component test listing now available

Michael Traskos
Find information and pricing for aerospace electrical component tests for qualification, verification, and performance assessment. Read more

A case study addressing EWIS sustainment needs

Michael Traskos
This white paper is a case study on recent work performed by Lectromec for the U.S. military to achieve Electrical Wire Interconnection Systems (EWIS) sustainment of an aircraft fleet. Read more

Joint Services Wiring Action Group (JSWAG) Spring 2016 updates

Michael Traskos
The Spring 2016 Joint Services Wiring Action Group (JSWAG) meeting was held in San Diego last week. Lectromec had the fortune to be able to attend this great meeting that included participants from all branches of the U.S. military as well as several foreign organizations. For those not familiar with the work of the JSWAG, […] Read more

What do advanced arc fault circuit protection devices protect?

Michael Traskos
The use of circuit protection devices is a fundamental part of circuit design; it is difficult to think of systems without them. For the aircraft industry, thermal circuit protection devices have been the primary circuit protection components for decades, and there is good reason for this: flight crew and maintenance personnel are familiar with their operation, and they are reliable and relatively low cost. Read more

11 improvements to MIL-HDBK-522 for aircraft wire systems

Michael Traskos
One of the best handbooks on EWIS routine inspection for aircraft wire systems is the military handbook MIL-HDBK-522, Guidelines for Inspection of Aircraft Electrical Wiring Interconnect Systems. The first version of the handbook was released in 2010 and provided a good starting point for EWIS inspection guidance. This guidance has been updated with the release […] Read more

How to automate aerospace bent pin wire analysis with Nat Ozarin

Lectromec Team
Today’s guest is Nat Ozarin, Senior Software and Reliability Engineer with The Omnicon Group Inc. He has decades of experience troubleshooting a wide range of issues with a particular emphasis on aircraft electrical systems. During the interview Nat reviews his academic and corporate background. He details his frustration with attempting to do bent pin analysis […] Read more

High temperatures and testing electrical aircraft components

Lectromec Team
An aircraft must perform under a wide range of temperature conditions. As a result, designers must pay attention to testing electrical aircraft components to see if they can endure constant changes in temperatures over the years. Today we have a short video that gives an overview of what role a scientific oven plays in testing […] Read more