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    1. Arc Flash PPE Categories for DC Systems: In Section 130.7(C)(15)(b), the table that outlines arc flash PPE categories for DC systems, such as storage batteries, DC switchboards, and other DC supply sources, has been updated. The value range requiring arc flash PPE has increased from 100 – 250 VDC to 150 – 600 VDC. This change is supported by recent test data for a maximum arc duration of 2 seconds and a minimum working distance of 18 inches.

      This is a significant change from the 2021 edition, and makes it unnecessary to assign PPE levels to our ESS Battery Trays.

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