Interim Certification Requirements for Photovoltaic (PV) DC Arc-Fault Protection (DC-AFP)
This Technical Information Letter (T.I.L.) applies to DC arc-fault protective-devices (DC-AFPDs) and devices incorporating arc-fault circuit protection intended for use in direct current circuits having a maximum voltage rating of 1000V. A DC-AFPD is intended to detect and mitigate the effects of arcing faults, which may pose a risk of fire ignition under certain conditions if the arcing persists…