EWIS component test listing now available
Find information and pricing for aerospace electrical component tests for qualification, verification, and performance assessment. Read more
By: Michael Traskos
A case study addressing EWIS sustainment needs
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
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?
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
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
4 aspects of wiring selection for special aircraft applications
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
Aircraft wire systems: Bent pin analysis
Previous Lectromec articles have focused on certain parts of system design such as the physical separation between systems. In particular, the articles have focused on the wiring. In this article, we will switch our attention to a different, but no less important, area: the Electrical Wiring Interconnect Systems (EWIS) connector assessment. Specifically, we will examine […] Read more
EWIS system design: Aircraft wire maintainability
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?
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
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