The Doctor Watts Shirt Pocket Electrical Guide is now updated to include the 2017 National Electrical Code revisions. Electricians and other electrical trade professionals will find this guide to be convenient and handy with its updated NEC tables, formulas, illustrations and detailed examples.
Right from your pocket you'll find:
- NEC Tables including Allowable Ampacities, Derating, Burial Depths, Grounding, & Wire-Fill
- Metric Reference Chart
- Basic Electrical, Power, Voltage & Transformer Formulas
- Examples depicting bending, transformer installations, branceh circuits and GFCI's