You should use the latest edition of NFPA 791, a handbook for inspecting electrical gear that lacks proper labeling. This 2024 version is designed to ensure electrical items are safe. It lays out how to inspect electrical equipment without labels to confirm it meets generally recognized safety guidelines.
The equipment needs to be installable correctly according to the National Electrical Code (NEC), also known as NFPA 70. NFPA 791 provides a straightforward and trustworthy method for this inspection process, which in turn leads to greater acceptance of the findings.
It’s also linked to NFPA 790, which outlines requirements for organizations that perform third-party evaluations. The most recent edition of NFPA 791 offers approved procedures for: inspecting equipment without labels, documenting these inspections, and examining several identical pieces of equipment. Authorities responsible for safety decisions utilize NFPA 791, and it also assists third-party evaluation bodies in conducting their inspections consistently and reliably.
