All questions and answers are based on the 2011 NEC. Q. What is the Code requirement for the use of slash versus straight voltage rated breakers? A. A circuit breaker with a straight voltage rating, ...

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The problem: I couldn't use my Heathkit oscilloscope in a house I lived in during the 1960s because my lab was too far from the power-line input to the house, and the line drop through the house was ...