Validating the HEMP Protection Capabilities of Power Filters

This paper will explain the need for High Altitude Electromagnetic Pulse (HEMP) protection power filters for the mitigation of conducted disturbances resulting from HEMP fields picked up on power lines going into a building. The paper will examine the filter's design, construction, and HEMP conducted performance in relation to standards applicable for operational safety and HEMP performance. This performance can be validated by testing using either military or commercial standards and thus the paper will look at these in some detail.