NEC 2026 · Chapter 2 · Open book
Trace the system.
Make the Code connection.
Original jobsite investigations for one student or a pair. Use your NEC, find the exact rule, and make a decision you can support.
Same project, same sequence. Work through it with your instructor.
Follow the power · Maple Street project
Open your NEC. Read the facts.
Trace services, feeders and branch circuits; investigate conductor identification, receptacles and control circuits.
- Select the part of the system on the original diagram.
- Choose the article, then your decision. Continue through one answer step at a time.
- Type the exact reference, then tap its search result or press Enter on an exact match. Check all selections, then Submit.
- For table cases, find the correct table, row and material column.
Two submitted attempts per case. After two misses, the answer and a plain-language explanation appear. Empty or unselected fields do not spend a try. Before submitting, write a short sentence connecting a case fact to your NEC rule. Explanations are required but are not automatically graded.
Pairs: swap reader and finder after each stop. Both students keep their NEC open.