Master Sgt. Rodney Dunn, 49th Civil Engineer Squadron Non Commissioned Officer In Charge of electrical systems, explains how to use the Secondary Distribution Cabinet, Feb. 17, 2022, on Holloman Air Force Base, New Mexico. Numerous SDCs are used to distribute high voltage power when there are no Primary Distribution Centers available.

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Keywords: 49, 49th, base, bear, ces, hollomanafb, training, wing