1.1 These requirements cover DC photovoltaic arc-fault circuit protection devices intended for use in solar photovoltaic electrical energy systems as described in Article 690 of the National Electrical Code, NFPA 70. This protection is intended to mitigate the effects of arcing faults that may pose a risk of fire ignition under certain conditions if the arcing persists.
1.2 These requirements cover devices including photovoltaic (PV) dc arc-fault circuit-interrupters (AFCI),arc-fault detectors (AFD), interrupting devices (ID) and inverters, converters, and charge controllers with integral arc-tault circult-interrupter protection.
