Review of MIL-STD 461 CS117 Lightning Induced Transients, Cables and Power Leads

Lightning may produce a spectacular display when viewed, but the associated electromagnetic effects (EME) has the potential (pun intended) to severely damage electrical and electronic circuits. MIL-STD-461G added a new test method to evaluate device tolerance for induced current on equipment cables or insulation breakdown from the effects of indirect lightning. Although new to MIL-STD-461, the induced lightning tests have a background in civil aviation with similar test methods documented in RTCA/DO-160.

Most equipment has been evaluated for effects from indirect lightning events using CS115 and CS116 test methods for several years and these test methods remain present in…

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