NFPA 70E Table 130.4 Approach Boundaries and Arc Flash Protection

This document specifies the approach boundaries for shock protection (Limited, Restricted, and Prohibited) based on nominal system voltage ranges, as defined in NFPA 70E Table 130.4. It also outlines the corresponding Hazard Risk Categories, required personal protective equipment (PPE), and clarifies that the Arc Flash Boundary can be greater or less than the Limited Approach Boundary.