Book excerpt: UGLY'S Electrical References is designed to be used as an on-the-job reference. Used worldwide by electricians, engineers, contractors, designers, maintenance workers, instructors, and the military; UGLY'S contains the most commonly required electrical information in an easy-to-read and easy-to-access format. UGLY'S presents a succinct portrait of the most pertinent information all electricians need at their fingertips, including: mathematical formulas, National Electrical Code tables, wiring configurations, conduit bending, voltage drops, and life-saving first aid procedures. Revised for the 2008 National Electrical Code.