New NEC Code Exceptions for Electric Signs and Outline Lighting

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New NEC Code Exceptions for Electric Signs and Outline Lighting​

The National Electrical Code (NEC) has introduced significant updates in the 2023 edition, particularly in Section 600.5, which governs branch circuits for electric signs and outline lighting. These changes are crucial for ensuring both safety and accessibility in commercial buildings and occupancies.

600.5 Branch Circuits​

(A) Required Branch Circuit
The updated code mandates that each commercial building and every commercial occupancy accessible to pedestrians must have at least one outlet in an accessible location at each entrance to each tenant space designated for sign or outline lighting system use. This outlet must be supplied by a branch circuit rated at a minimum of 20 amperes, which is dedicated solely to this purpose and supplies no other load.
This requirement is crucial as it anticipates the common practice of installing electric signs post-occupancy or when a new tenant moves into an existing space. Ensuring the availability of a dedicated outlet beforehand simplifies the process and enhances safety by preventing the overloading of existing circuits.

Exceptions Added to 2023 NEC​

Two important exceptions have been added to provide flexibility while maintaining the core safety intent of the code:
Exception No. 1: A sign or outline lighting outlet is not required at entrances used exclusively for deliveries, service corridors, or service hallways intended only for service personnel or employees. This exception acknowledges that these areas are not meant for public access and thus do not require the same lighting considerations as public entrances.
Exception No. 2: The required branch circuit is allowed to supply loads directly related to the control of the sign, such as electronic or electromechanical controllers. This exception ensures that all necessary components for sign operation can be powered by the same circuit, promoting efficiency and streamlined installation.

Future-Proofing Commercial Spaces​

This proactive requirement is designed to future-proof commercial spaces. By mandating outlets for electric signs at the design and construction stages, building owners and tenants can avoid the complications and additional costs associated with retrofitting electrical systems after occupancy. It ensures that any future signage needs can be met without compromising electrical safety or incurring unnecessary expenses.
Overall, the updates to NEC Section 600.5 reflect a forward-thinking approach to electrical code requirements, enhancing both the safety and functionality of commercial buildings. These changes highlight the importance of planning for future needs and provide clear guidelines to ensure that commercial spaces are equipped to handle the demands of modern electric signage and lighting systems.


4o

 

[Mr. Inspector]

This should be in article 210 under Required Outlets, right next to 210.62 show windows with all the other required outlets. Who would think to look in article 600 for required outlets when not dealing with a sign. I told a number of inspectors an electrical engineer about this in the 2018 NEC who never thought to look under the sign article when they are not dealing with signs. I myself did not know about it myself until I happen to come across it in article 600 when I was doing a plan review on a sign one day.
Are there any other required outlets in other articles that you would not look up unless you are dealing with what the article is titled for?