The Manual · Five Parts · Twenty-Two Chapters
The Code, laid out in working light.
Twenty-two chapters across five parts — written for electricians, not academics. Every rule is paraphrased in plain language and cited by article and section, so the manual and your codebook work as a pair: this book teaches you the why, the Code book stays your authority.
It hands you the method, not just the answers.
Most prep materials hand you answers. This one hands you the method. Each calculation chapter walks the full worked path — the rule, the citation, the math, the trap most people fall into — because on exam day the numbers change but the method doesn’t. Learn the method once and every variation becomes the same problem wearing different clothes.
The five parts
Part 1 — Foundation
CHAPTERS 1–5
Navigating the Code, definitions, conductor sizing and ampacity, overcurrent protection — the bedrock every other chapter stands on.
Part 2 — Grounding & Load Calcs
CHAPTERS 6–10
Grounding and bonding, branch circuits, the dwelling-unit calculation, feeders — where most exams are won or lost.
Part 3 — Services
CHAPTERS 11–13
Services and service equipment, the whole-building calculation, separately derived systems.
Part 4 — Wiring Methods
CHAPTERS 14–17
Wiring methods, raceway and box fill, equipment and devices — the everyday Code, done precisely.
Part 5 — Specialized Loads
CHAPTERS 18–22
Motors and generators, air conditioning, transformers, special occupancies, and PV / renewable systems — the chapters that separate masters from journeymen.
The standard behind it
Before release, every figure in these pages was verified against the 2023 NEC by a dedicated accuracy review — ampacity tables, grounding conductors, service calculations, box fill, motor protection, transformer rules, PV requirements. Where the Code speaks, we cite it. Where it calculates, we show the work. And we never reprint the Code itself — you study from the genuine article, the way the exam expects you to.