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Charles F. Morris, chief electrician, Prodeuce Farm, Hanover, Pa., sent in these comments. “The duplex Type AC armored cable ‘BX’ connector was misused here, and the screw is piercing the outer jacket and possibly the conductor insulation. This presents a risk of contact with an energized conductor. Fittings and connectors shall be used only with the specific wiring methods for which they are designed and listed. See 300.15.”

Kathleen McGloin, a Code enthusiast from Boston, added this to the mix. “The installer did not use an electrical box or other listed enclosure to transition from one wiring method to the other. The run is transitioning from flexible metal conduit to non-flexible conduit (at best), or, from armored cable to pipe (at worst). I believe the installation violates the requirements of 300.16(A) and 300.10.”

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