The National Electrical Code is revised every three years and outlines the minimum requirements for safe electrical installation. Many older homes may not have an adequate electrical system to meet the electrical demands of today. If you’re renovating your home, make sure to have the following electrical safety devices installed to maintain an electrically safe home: https://www.esfi.org/home-safety-devices-renovate-your-home-to-code/ | Electrical Safety Foundation International

Electrical Code Rules for Every Room in the House

Wiring Color Codes - USA, UK, Europe & Canada Codes, When to Apply