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EWIS Design

A new standard for EWIS design: IPC-D-620

As EWIS (Electrical Wiring Interconnection System) engineering is becoming a more mature field, additional standards and requirements are being developed. The latest of these EWIS design standards is the IPC-D-620, “Design and Critical Process Requirements for Cable and Wiring Harnesses.” This pending standard, coupled with the design requirements of IPC (Institute of Printed Circuits) documents, […] Read more

Lessons learned from NASA: Wire identification, harness clamping, and more

Learning from the mistakes of the past is critical for ensuring reliability of systems created today. These lessons may be contained in industry standards documents with little or no explanation as to why the requirements were created (such as AS50881). This lack of historical knowledge and the loss of the answer to ‘why’ can leave […] Read more

Aircraft circuit protection: A review of 5 technologies

Two weeks ago we posted a blog on the selection process for circuit protection/wire pairs. Today, we produce a grid to help you understand common aircraft circuit protection types that can be found on aircraft. The five device types talked about here are the thermal circuit protection, fuse, magnetic circuit protection, Arc Fault Circuit Breaker […] Read more