Electrical Standard for Industrial Machinery
Also Known As:
The NFPA 79-2021 standard is an essential document for ensuring electrical safety in industrial settings. This edition has been updated to align with the latest National Electrical Code (NEC) and addresses the impact of new technologies on electrical safety.
The standard emphasizes the need to prevent electrical incidents and unplanned shutdowns that can result in injuries, damages, or losses. It provides essential protection for operators, equipment, facilities, and work-in-progress. Compliance with NFPA 79 is crucial for reducing risks in industrial environments.
The 2021 edition includes updates that cover a broad range of equipment, from simple drill presses to complex automated manufacturing systems. These updates address industry concerns and incorporate changes from companion codes and standards. Some of the notable updates include enhanced requirements for supply circuit disconnecting means, revised electromagnetic compatibility involving transients, changed requirements for enclosure access and interlocking, and updated voltage limitations for attachment plugs in protective extra low voltage systems.
Additionally, the standard updates language regarding surge-protection devices, modifies the exception involving insulation monitoring for Class 2 circuits, updates control system grounding requirements, specifies the need for listed emergency stop devices, revises requirements for conductors and equipment supplied by power conversion equipment, and clarifies voltage references.
| Language(s) | English |
| File Size | 22.3 MB |
