Before beginning a residential project make sure you've got Ugly's Residential Wiring, 2020 Edition in your toolbox. Updated to reflect the 2020 National Electrical Code (NEC(R)), this quick on-the-job reference has been specifically designed to provide the most commonly required electrical wiring information for residential work in an easy-to-read, easy-to-access format. You will save precious time and money with instant access to specific rules, symbols and code requirements for wiring dwellings that ensure your job stays on task and passes inspection the first time.The perfect tool for electricians, contractors, designers, instructors, students, and do-it-yourself home owners, Ugly's Residential Wiring includes coverage of basic residential requirements, including: Features & Benefits: Allowable Ampacities Ohm's Law Grounding Parallel Circuits Series Circuits Services and Service Points Conduit Fill Wiring Diagrams and Rules.