Junction Box

Definition

A junction box is a metal box in which runs of cable meet and are protectively enclosed.

Purpose

The primary purpose of a junction box is to protect electrical connections from damage and to prevent electrical fires. It provides a safe enclosure for wire splices and ensures that connections remain secure and accessible for maintenance.

Examples of Use

1. Electrical Wiring: Junction boxes are used in residential and commercial buildings to house wire connections, ensuring safety and organization.
2. Lighting Installations: When installing light fixtures, junction boxes provide a secure location for connecting wires.
3. Renovations: During renovations, junction boxes are often added or moved to accommodate new electrical layouts.

Related Terms

• Electrical Box: A general term for boxes used to enclose electrical connections, including junction boxes, outlet boxes, and switch boxes.
• Conduit: A tube used to protect and route electrical wiring.
• Wire Nut: A connector used to join two or more electrical wires.

Notes

Junction boxes must be accessible and should not be buried within walls or ceilings. Proper installation and use of junction boxes are crucial for electrical safety and code compliance.