What is the requirement for junction boxes that are installed in walls?

Junction boxes installed in walls must be accessible without removing any building structure or finish to ensure safety and facilitate maintenance or future electrical work. This accessibility requirement is crucial for several reasons. First, it allows for easy troubleshooting and repairs of electrical connections without needing to damage or alter the surrounding wall materials, which could lead to additional costs and structural integrity issues.

Additionally, if a junction box is not accessible, it could hinder the ability of electricians to perform necessary inspections, potentially leading to unsafe conditions if any issues arise. Proper placement and accessibility also align with electrical codes and best practices designed to promote safety standards in electrical installations. Meeting this requirement helps ensure that any connections within the junction box can be inspected or modified as needed without undue complications.