Electrical

Voltage drop and wire size for 120V, 240V, 3-phase and low-voltage DC runs

Calculate residential electrical service requirements using NEC methods

Wire gauges, circuit breaker sizes, electrical codes, and safety guidelines

Visual guide identifying standard North American plug configurations and their usage

NEC 2023 bathroom rules with section numbers, a does-it-need-GFCI checker and a one-or-more circuit planner

AFCI, outlet spacing, switched lighting, tamper-resistant receptacles and smoke alarms, with an outlet layout calculator

Circuit requirements, GFCI placement, appliance wiring, and outlet spacing for kitchen electrical work

3-way switch wiring, outlet spacing, smoke detector placement, and lighting requirements for hallways

Complete guide to choosing light bulbs: color temperature (Kelvin), lumens vs watts, base types, bulb shapes, and room recommendations

Complete residential EV charger installation guide with electrical requirements, permits, wiring, costs, rebates, and step-by-step process

Fan size, mount and downrod calculator, wiring diagrams for every switch setup, step-by-step install with times, and FAQs

Layout spacing, IC vs non-IC housings, trim types, and wiring in series

Burial depths, conduit requirements, GFCI protection, wet-rated fixtures, and low-voltage systems

Circuit requirements, outlet placement, EV charger prep, and subpanel considerations