Energy Basics Archives

Energy Basics

Offset Multiplier Table: 10 to 45 Degrees

Offset multiplier table for 10 to 45 degrees: compare field constants, check the formula, and calculate a 6-inch conduit offset in 2026.

Energy Basics

Wire Size vs Ampacity: NEC 310 Basics for 2026. Compare 60/75/90°C ratings, check terminal limits, and follow a 12 AWG, 20A example.

Energy Basics

Understand derating, temperature and fill adjustment in 2026 with NEC reference factors, a nine-conductor example, and terminal-rating checks.

Energy Basics

Compare EMT vs PVC vs Flex fill differences in 2026, with internal-area tables, NEC references, and a worked 3/4-inch conduit example.

Energy Basics

Understand the 3% and 5% voltage drop rules in 2026, allocate feeder and branch-circuit drop, and verify a 100-foot, 16-amp example.

Energy Basics

GFCI and AFCI requirements overview for 2026: compare locations, NEC editions, protection options, and what a 5 mA ground-fault rating means.

Energy Basics

Follow a Box Fill Worked Example for 2026: count conductors, switch yokes, grounds, and clamps, then check an 18-cubic-inch box.

Energy Basics

Learn the Ohm's Law Triangle in 2026: solve V, I, and R, check a 120 V example, convert units, and recognize limits in real circuits.

Energy Basics

Subpanel Sizing Basics for 2026: calculate feeder loads, compare panel ratings, and check breaker, wire, grounding, and NEC requirements.

Energy Basics

Saddle bends explained for 2026: compare 3-point and 4-point layouts, bend spacing, shrink, and checkable 4-inch conduit saddle examples.

Energy Basics

Box Sizes and Volumes Chart for 2026: compare square, octagon, and device boxes, verify marked capacity, and calculate NEC box fill.