2 EWIS insights from a presentation at the AIAA conference

March 23, 2014 Michael Traskos

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

Aircraft EWIS high voltage testing considerations

March 21, 2014 Michael Traskos

There are two factors that need to be considered when using aerospace wires/cables for higher voltage systems: (1) Determining the long-term insulation life impacts of high voltage utilization, and (2) the impact that high voltage testers may have through repeat high potential testing. In this article we will focus on the second factor. Read more

EWIS regulatory compliance with 25.1707, Part VII

February 28, 2014 Michael Traskos

This is the final article on the series devoted to the FAA regulation 25.1707 on EWIS separation. The previous six articles in this series are listed below: Jan 20, 2014 Part I: Damage assessment for 25.1707 Jan 28, 2014 Part II : EMI compliance in 25.1707 Feb 7, 2014 Part III: Heavy Current Cables in […] Read more

EWIS regulatory compliance with 25.1707, Part VI

February 25, 2014 Michael Traskos

This is the sixth article in the series focused on FAA 25.1707 that discusses electrical wire interconnection system (EWIS). The previous articles in this series are listed below: Jan 20, 2014 Part I: Damage assessment for 25.1707 Jan 28, 2014 Part II : EMI compliance in 25.1707 Feb 7, 2014 Part III: Heavy Current Cables […] Read more

EWIS regulatory compliance with 25.1707, Part V

February 20, 2014 Michael Traskos

Each of the last four articles has focused on a subpart of the FAA 25.1707 regulation. Jan 20, 2014 Part I: Damage assessment for 25.1707 Jan 28, 2014 Part II : EMI compliance in 25.1707 Feb 7, 2014 Part III: Heavy Current Cables in 25.1707 Feb 15, 2014 Part IV: Grounding and Power Separation Because […] Read more

EWIS regulatory compliance with 25.1707, Part IV

February 14, 2014 Michael Traskos

This article focuses on the grounding and separation of power sources; it is a continuation of a series of articles discussing the Federal Aviation Administration (FAA)’s EWIS certification requirements of 25.1707. If you missed the last couple of articles on this topic, you can see the list below: Jan 20, 2014 Part I: Damage assessment […] Read more

EWIS regulatory compliance with 25.1707, Part III

February 7, 2014 Michael Traskos

This is the third article in this series that is looking at the individual components of Federal Aviation Administration (FAA)’s EWIS regulation 25.1707 and EWIS regulatory compliance. This is part of a series on Regulatory Compliance. If you missed the others in this series, they are listed below: Jan 20, 2014 Part I: Damage assessment […] Read more

EWIS regulatory compliance with 25.1707, Part II

January 28, 2014 Michael Traskos

This is the second article in a series on EWIS Regulatory Compliance. The series is looking at the individual components of the Federal Aviation Administration (FAA) EWIS regulations 25.1707. The first article covered section ‘a’ of the regulations. Continuing the examination of the FAA EWIS separation requirements detailed in 25.1707, this article examines the next […] Read more

EWIS regulatory compliance with 25.1707, Part I

January 20, 2014 Michael Traskos

We will start a series of articles on EWIS Regulatory Compliance. The next couple of articles will discuss some of the finer points of the Federal Aviation Administration (FAA) regulations 25.1707 – System Separation: Electrical Wire Interconnection System (EWIS). Each of these articles will go through an example of an unacceptable scenario and the means to […] Read more

MIL-HDBK-525 EWIS overview: Task 6 — Action plan, Part II

December 16, 2013 Michael Traskos

This is a series on MIL-HDBK-525 EWIS overview. The eighth article in the series Electrical Wire Interconnection Systems (EWIS) Service Life Extension Programs (SLEPs), discusses the Enhanced Zonal Analysis Procedures (EZAP) process, which aims to improve maintenance and inspection programs for all EWIS components. The EZAP process tailors the frequency of inspections based on the […] Read more

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