DEHN meets the MIL STD: offers an off the shelf solution to the military for lightning protection
A recent examination has been presented at the IEEE Power Engineering Symposium in Long Island, NY providing valuable insight for defense contractors with regards to lightning protection. They were given detailed information comparing the direct strike components in the military 1757A and 464C standards with the relevant IEC 62305 suggested direct strike waveform. Ensuring that the Department of Defense facilities have a lightning protection system that meets these standards is essential for safe operations of critical infrastructure. Key parameters of peak current, time characteristics, di/dt, charge and energy of the lightning pulse definitions were analyzed using MathCad and PSpice circuit analysis tools.
PSpice was utilized to model a conventional and isolated lightning circuit with the relevant lightning waveforms injected to simulate lightning conditions. The model provided a rough order comparison of the induced voltages at the lightning air terminal to avoid side flash from the down conductor into adjacent metal objects. By using military lightning qualification test techniques and electromagnetic environmental effects for systems, IEC certified commercial products are shown to be tested to assure that these standards are met.
One of the military’s primary drives is to use commercially available methods, products, and materials available to meet the requirements of the direct lightning strike waveforms described in MILSTD-1757A and MILSTD 464C. The results of the detailed analysis have provided the defense industry radio and C4 shelters a cost effective, commercial off the shelf solution for their needs. DEHN USA’s IEC line of products achieve compliance with military standards and provide a high level of confidence.
Learn more here: Mil Std LPS by IEC Proxy-IEEE PES LI