Arc Flash Video Library
Watch, download, and share AC and DC arc flash videos.
This expert-narrated video series showcases real-world alternating current (AC) and direct current (DC) arc flash simulations, highlighting their intensity, revealing how both arc-rated (AR) and flammable (non-AR) clothing perform under extreme conditions, and emphasizing the power of AR protection to save lives.
AC vs DC Arcs: What’s the Difference?
Arc Flash Video Categories:
Arc Week Season 6, Ep. 1 – Belief: “I Don’t Need Arc-rated PPE – Cotton Is Fine.”
Arc Week Season 6, Ep. 2 – Belief: “Who Needs Arc-Rated PPE If the Arc Blast Kills You?”
Arc Week Season 6, Ep. 5 – Belief: “Fabric Softener & Lint Ruin Arc-rated PPE Effectiveness.”
New Research Shows Arc Ratings for DC Arc Flash are Equivalent to AC Arc Flash
Photo Gallery
AC Arc Flash Hazards
AC arcs are electrical discharges that occur when an alternating current flows through a gap or air space. In AC arcs, the direction of the current constantly changes, resulting in the arc repeatedly extinguishing and reigniting during each cycle. AC arcs can occur in various electrical systems and devices that utilize alternating current, such as power distribution networks, household electrical wiring, electrical appliances, and industrial machinery.
DC Arc Flash Hazards
DC is different than AC in that it is “on” throughout the arc, while AC current alternates between “on” and “off,” DC arcs are theoretically harder to stop because they don’t drop below the zero point. They also appear to be more “magnetic” (drawn to metal) and perhaps a bit more energetic vs AC arcs of the same input energy. DC arcs can happen in various contexts, including in electric vehicles (EV) manufacturing and EV charging infrastructure, electrical power systems, industrial settings, renewable energy systems, battery systems, and more.