Hey, you guys laugh! Well it happened to me. I installed a receptacle in a closed wall construction. got all done and plugged in the clock. It ran REAL FAST. OH by the way (sheepishly) The panel was an unmarked delta leg panel and I hooked up the phase leg to the receptacle to the high leg in the panel by mistake. I was a 3 year apprentice and I didn't know what a delta leg was. [Linked Image]