SynC · Topic
These are the standards in the SynC Standards library that cover Arc Flash. Each one is a complete, plain-language specification: the scope it applies to, the requirements that govern it, and a structured equipment datasheet listing the values a project has to decide — ratings, materials, setpoints, and the standards each is verified against. All of it is free to read without an account and published under CC BY-SA 4.0.
A standard usually carries several topics, so most of the entries below also appear under neighbouring subjects. The topics each one carries are listed on its own page.
Engineering analysis to calculate incident energy and the arc-flash boundary at every piece of electrical equipment where workers may interact with the equipment while it is energized or while it could be placed into an electrically safe work condition. Applies to AC systems from 208V through medium voltage, in commercial, institutional, industrial, and healthcare facilities. The study produces equipment labels, PPE specifications, and the documentation that supports an NFPA 70E-compliant electrical safety program.
Identification labels, nameplates, warning signs, panel directories, and color-coding for electrical distribution equipment and wiring rated 600V and below and for medium-voltage equipment served by the same project — switchgear, switchboards, panelboards, transformers, motor control centers, disconnects, automatic transfer switches, junction boxes, raceways, and conductors. Covers arc-flash warning labels driven by the arc-flash study, voltage-class and system color coding (normal, emergency, critical, standby, fire alarm, security), panelboard circuit directories, disconnecting-means identification, available fault current marking, and conductor and conduit identification.
Factory-fabricated industrial control panels and enclosures that house instrumentation and controls (I&C) equipment for industrial, process, and water/wastewater (WTP/WWTP) facilities. Covers UL 508A listed control panels and enclosures housing programmable logic controllers, remote I/O, control relays, power supplies, network switches, and operator interface devices, rated 1000V and below. Addresses enclosure type rating selection (UL/NEMA Type 1, 3R, 4, 4X, 12), short-circuit current rating (SCCR) determination per UL 508A Supplement SB and NEC Article 409, enclosure sizing and component layout, internal power distribution and control power transformers, power-versus-signal wiring segregation, wire and terminal-block identification, thermal management, grounding and bonding, nameplates, and arc-flash labeling.
Metal-clad medium-voltage switchgear rated above 1 kV through 38 kV using drawout vacuum or SF6 circuit breakers, built to IEEE C37.20.2 and the ANSI/IEEE C37.04 / C37.06 / C37.09 series, for utility-customer substations, large commercial campuses, healthcare and higher-education central plants, data centers, and industrial facilities. Covers 5 kV, 15 kV, 27 kV, and 38 kV voltage classes, indoor and outdoor walk-in (protected aisle) configurations, arc-resistant ratings per IEEE C37.20.7, multifunction microprocessor protective relays, and optional IEC 61850 station bus communications.