Outdoor, Grade-level Boxes

Note: The standard type, standard sub-type, ICS code, scope and project need for this NOI (originally published on January 5, 2017) were updated by the responsible SDO on April 30, 2024.

1.1 This standard covers finished-grade in-ground outlet boxes with integral wiring enclosures for mounting accessible wiring device(s) connected to branch circuit(s). An in-ground box is intended to be installed in accordance with;

1. NFPA 70, National Electrical Code,
2. CSA C22.1, Canadian Electrical Code, Part I, Safety Standard for Electrical Installations,
3. ,Mexico’s Electrical Installations, NOM-001-SEDE. In-ground outlet boxes may also accommodate telecommunication-circuit accessories for power-limited circuits.

1.2 This standard covers the requirements for in-ground outlet boxes that are intended to provide drainage for devices and accessories mounted within, for pedestrian traffic only or pedestrian traffic and nondeliberate vehicular traffic.

1.3 This standard does not cover

1. Boxes for use in hazardous (classified) locations as defined in the NFPA 70, National Electrical Code, CSA C22.1, Canadian Electrical Code, Part I, Safety Standard for Electrical Installations and NOM-001-SEDE Mexico’s Electrical Installations.
2. Junction boxes for Swimming Pools covered by UL 1241 and CSA C22.2 No. 89
3. Commercial Appliance Outlet Centers covered by ANSI/UL 891/CSA C22.2 No. 244 and ANCE NMX-J-118/2-ANCE.
4. Products covered by UL 486D/CSA C22.2 No. 198.2 and ANCE NMX-J-519-ANCE, Sealed Wired Connectors
5. Boxes used for infrastructure lighting and traffic lighting, and handhole and manhole boxes and enclosures intended solely for electrical installation and maintenance access.
6. Concrete boxes
7. In-ground outlet boxes greater than Tier 5 in accordance with ANSI/SCTE 77 Specification for Underground Enclosure Integrity.
8. Grade-level in-ground enclosures covered by CSA C22.2 No. 344