(C) Notification and Marking
- Nominal ESS ac voltage and maximum ESS dc voltage
- Available fault current derived from the ESS
- An arc-flash label applied in accordance with acceptable industry practice
- Date the calculation was performed
Exception: List items (2), (3), and (4) shall not apply to one- and two-family dwellings.
Informational Note No. 1: Industry practices for equipment labeling are described in NFPA 70E-2018, Standard for Electrical Safety in the Workplace. This standard provides specific criteria for developing arc-flash labels for equipment that provides nominal system voltage, incident energy levels, arc-flash boundaries, minimum required levels of personal protective equipment, and so forth.
ELECTRIC SHOCK HAZARD
TERMINALS ON THE LINE AND LOAD
SIDES MAY BE ENERGIZED IN THE OPEN POSITION
The notification(s) and marking(s) shall comply with 110.21(B).