410 Part XVI. Special Provisions for Horticultural Lighting Equipment.
Code Change Summary: New code sections covering horticulture lighting equipment.
In the 2020 NEC®, a new part XVI was added to Article 410 to address the special considerations related to horticultural lighting and related equipment.
Horticultural lighting is in the spotlight now that so many states have allowed cannabis for both recreational and medicinal use. The oil extraction process often involves butane or other flammable gasses and luminaires need to be rated for the location where they are used.
Adding new Part XVI to Article is a step in the right direction to ensure luminaires installed in a grow operation are suitable for the environment.
Below is a preview of the NEC®. See the actual NEC® text at NFPA.ORG for the complete code section. Once there, click on their link to free access to the 2020 NEC® edition of NFPA 70.
2017 Code Language:
This part of Article 410 did not exist.
2020 Code Language:
N Part XVI. Special Provisions for Horticultural Lighting Equipment
N 410.170 General. Luminaires complying with Parts, I. II, III, IV, V, VI, VII, IX, X, XI, and XII of this article shall be permitted to be used for horticultural lighting. Part XVI shall additionally apply to lighting equipment specifically identified for horticultural use.
Informational Note: Lighting equipment identified for horticultural use is designed to provide a spectral characteristic needed for the growth of plants and can also provide supplemental general illumination within the growing environment.
N 410.172 Listing. Lighting equipment identified for horticultural use shall be listed.
N 410.174 Installation and Use. Lighting equipment identified for horticultural use shall be installed and used in accordance with the manufacturer’s installation instructions and installation markings on the equipment as required by that listing.