NEC Code Basics

Understanding Requirements for Electric Signs and Outline Lighting

How to make sure your next sign installation is safe and secure

Article 600 covers the installation of conductors, equipment, and field wiring for electric signs and outline lighting. It also covers retrofit kits. Outline lighting is an arrangement of incandescent lamps or electric‑discharge lighting to outline or call attention to certain features, such as the shape of a building or the decoration of a window [Art. 100]. Informational Note: Sign and outline lighting systems can include high‑intensity discharge (HID), fluorescent, incandescent, LEDs,

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