Bill Lewis

Bill Lewis started his career in electricity in the late 1950s, specializing in theater lighting. After working as a carpenter, a contractor, an editor, a publisher, and an urban planner, Bill returned to working, learning, and teaching about electricity. Currently, he works with Tower-Davis Electric in Springfield, Va., and shares his building skills as the guide to home repair at About.com.

Installing a Circuit Breaker in an Existing Panel
When adding a new circuit or replacing a faulty breaker, here is what you need to know to work safely in the panel.

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