A New Revision of MIL-HDBK-522
A new version (Revision C) of MIL-HDBK-522 was released on May 11, 2021. This article examines many of the changes made between Revision B and Revision C. Read more
MIL-HDBK-522
Detailed Discussion of MIL-STD-1353 (Part 2): Nickel and Gold Plating
Plating materials used on electrical connectors are imperative to the connector maintainability and dependability throughout its service life. In the last article on MIL-STD-1353, we discussed Tin as a plating metal, its restrictions in practical use, and the potential of whisker formation which can lead to destructive arcing or short circuit events. Here, we discuss the use of gold and nickel as plating metals and their effectiveness when used together.
Read more11 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
What are the top 10 articles for aircraft wiring systems professionals for 2015?
Through its research, articles, videos, and continuous involvement in the aerospace community, Lectromec has been contributing to the knowledge base for aircraft wiring systems for three decades. To continue to further this goal, we have started to take a look at the most popular articles from the past year to see what readers find of […] Read more
Aircraft wire inspection? Time tested guidelines
Performing routine aircraft wire systems visual inspections is a critical aspect of maintaining aircraft airworthiness and extending the component lifecycle. A visual inspection is the first step in assessing the condition of a component or determining what future steps need to be taken. This article discusses recommended techniques based on MIL-HDBK-522, which provides EWIS inspection […] Read more
EWIS: A 13-minute summary of MIL-HDBK-525
This Lectromec presentation provides a brief summary of MIL-HDBK-525, “Electrical Wiring Interconnect System (EWIS) Integrity Program.” It provides a starting point for those involved in Mechanical Equipment and Subsystems Integrity Program (MECSIP) or those new to the EWIS service life extension efforts. This fifteen minute presentation is a good description of Electrical Wire Interconnect Systems […] Read more