9Developed as a handy, easy-to-use resource for electrical estimators, contractors, electricians, and apprentices, the Electrical Field Reference Handbook is the ultimate desk and field reference. Now updated to the National Electrical Code 2008, it covers the most frequently used on-the-job information, such as: standard symbols for blueprints, drawings, and instrumentation, key formulas and calculations, common NEC 2008 tables, motor and transformer calculations, and more. A section devoted to first aid and OSHA safety standards demonstrates the book's commitment not only to accuracy and currency, but also to safety. With a durable, spiral-bound format perfect for work in the field and a straightforward writing style, this book provides electricians with at-your-fingertips information virtually any time and any place it is needed. Check out our app, DEWALT Mobile Pro(TM). This free app is a construction calculator with integrated reference materials and access to hundreds of additional calculations as add-ons. To learn more, visit dewalt.com/mobilepro.