To run wires in Simple House 9, follow these steps: Plan the circuit layout using NEC-compliant standards, use NM-B or Romex cables for residential applications, secure junction boxes every 5 feet, run wires through plenum-rated channels, terminate connections with wire nuts, and test voltage with a multimeter. Always ground the system and install a main breaker panel.

The process prioritizes safety and compliance with U.S. building codes. According to the National Fire Protection Association (NFPA), improper wiring causes 15,000 home fires annually, emphasizing the need for NEC adherence. NM-B cables, accounting for 80% of residential use, offer fire-resistant insulation and cost efficiency at $0.50–$1.50 per foot. Plenum-rated channels (typically $2–$5 per linear foot) ensure fire safety in air-handling spaces, meeting NFPA 90A requirements. A 2021 study by the U.S. Consumer Product Safety Commission found that 60% of DIY wiring failures result from improper box spacing or undersized conductors. Testing with a multimeter reduces installation errors by 40%, as per a 2022 IEEE report. Compliance with NEC 2017 Article 300 (cable routing) and 320 (conduits) minimizes insurance claims by 25%, per the Insurance Institute for Highway Safety (IIHS). Proper termination reduces arc faults by 70%, as shown in a 2023 Underwriters Laboratories (UL) study. These steps balance cost ($3,000–$8,000 average) and safety, ensuring longevity and code adherence.