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Basic Electricity by David C. Young, PE

Perspectives on PV by John Wiles

What is the Canadian Electrical Code? by Leslie Stoch

Hot Spots by Michael Johnston

The Truth About AFCIs by George Gregory and Alan Manche

NESC Substation Grounding by David Young

Overhead Line Design from Scratch by David Young

Electrical Fundamentals: Basic Electricity by David C. Young, PE

Part 1 — What is Electricity? Part 2 — Ohm's Law & Electrical Resistance Part 3 — Measuring Voltage, Current & Resistance Part 4 — More Voltage Drop Calculations Part 5 — Alternating Current (pdf) Part 6 — Large Conductors Part 7 — Energy & the Watt-Hour Meter Part 8 — Inductive Reactance & Electric Motors Part 9 — Phasors & Alternating Currents Part 10 — Uses of a Phasor Diagram

Perspectives on PV A series of articles on photovoltaic (PV) power systems and the NEC by John Wiles

Part 1 — Photovoltaic Power Systems and The NEC Part 2 — Photovoltaic Power Systems: What Inspectors Need to Know Part 3 — Single Conduit Exposed Cables! Not in My Jurisdiction!  Part 4 — PV Systems—Should They Be Grounded? Part 5 — Stalking the Elusive and Somewhat Strange PV System  Part 6 — Do You Know Where Your Cables Are Tonight?  Part 7 — Photovoltaic Power Systems and 2005 NEC Part 8 — Permitting or Inspecting a PV System? Part 9 — Updates: Grounding PV Systems and Fine Stranded Conductors Part 10 — Making the Utility Connection Part 11 — Neither Sleet nor Snow nor the Dark of Night Part 12 — Back to the Grid, Designing PV Systems for Code Compliance Part 13 — PV Plan Check Part 14 — The 15-minute PV System Inspection. Can You? Should You? Part 15 — Achieving The Art of The Possible Part 16 — Penetrating PV Questions from Inspectors Part 17 — PV Systems and Workmanship Part 18 — Inspectors Demand More Answers Part 19 — The Development of Codes, Standards, and PV Equipment—How are they related? Part 20 — Disconnect, Disconnect, Where For Art Thou? Part 21 — Continuous Currents through Curious Cables Part 22 — The Nature of the PV Module: Limited Currents Have Benefits and Drawbacks Part 23 — Why Inspect PV Systems? Part 24 — Ground-Fault Protection for PV Systems Part 25 — Common PV Code Violations

What is the Canadian Electrical Code? by Leslie Stoch

Part 1 — What is the Canadian Electrical Code, Part 1? Part 2 — Appendix B

Under the Watchful Eye of the Inspector—Hot Spots by Michael Johnston

Part 1 — Under the Watchful Eye of the Inspector—Hot Spots  Part 2 — Emergency Systems and the Witness Test

The Truth About AFCIs by George Gregory and Alan Manche

Part 1 — Focuses on the technology, the AFCI product standard and what the NEC is written to accept Part 2 — Part II focuses on application and installation of arc-fault circuit interrupters (AFCIs) in accordance with the National Electrical Code. Part 3 — Part III responds to comments and inquiries from readers of the earlier parts and interest in what is coming in the next National Electrical Code (NEC) cycle.

NESC Substation Grounding by David Young

Part 1 — Text. The NESC requirements for supply stations, substations and generating stations, are presented in Part 1 of the NESC starting on page 27. Part 2 — Text. The almost two hundred pages and ninety five equations of IEEE Standard 80-2000 provide a well explained procedure for the design of safe and practical grounding systems for electric substations. Part 3 — Text. After completing the soil resistance measurements at the proposed substation site, the next step is the development of a mathematical equivalent soil model that is a good approximation of the actual soil resistance data. The most common models are the uniform soil model and the two-layer soil model.

Overhead Line Design from Scratch by David Young

Part 1 — PDF Part 2 — PDF Part 3 — PDF Part 4 — PDF

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