High-Intensity Radiated Fields (HIRF) have often been viewed and treated mainly as an avionics certification problem. For modern aircraft, especially those moving toward higher-voltage power distribution and power-electronic control, HIRF is evolving into an EWIS issue as well. The reason is straightforward: EWIS is the installed pathway through which electromagnetic energy can couple, propagate, and interact with equipment, structure, and other wiring systems. When the electrical architecture includes high-voltage buses and high-frequency switching, the wiring system becomes even more central to whether the aircraft remains robust in the HIRF environment. In this article, we consider the implications and how they might be addressed. Read more