Is your facility up to the 2017 NEC® Code? As of May 9, the 2017 NEC Code is in effect in 20 states, including Minnesota, North Dakota, South Dakota, Colorado, Nebraska and more. One of the changes made in the 2017 edition was in relation to Short-Circuit Current Ratings (SCCR). Knowing that the NEC Code requires SCCR is only a small factor in compliance.
SCCR is a safety rating that occurs under fault-current conditions and must be followed to ensure safety and compliance with safety standards. NEC and OSHA do not allow equipment to be located in the electrical system where the short-circuit current is greater than what the equipment can manage.
Documentation & Marking SCCR Requirements
If equipment is located or installed where its SCCR is less than the available short-circuit current, it creates safety hazards. These hazards can include fire, shock and shrapnel. Two of the biggest changes within the 2017 NEC Code are the requirements that state you must document available short-circuit current and mark equipment with its SCCR.
The available SCCR must be field marked at the site where machinery, HVAC equipment, energy storage equipment and more are installed. NEC also states that SCCR must be documented for the location where motor control centers and any equipment with an industrial control pane are located.
Help, I Need More Information on the SCCR 2017 NEC Code Requirements!
If you are interested in having a more in-depth training regarding this and other sections of the 2017 NEC Code, please fill out the form below to be notified of upcoming training opportunities. In the meantime, check out these helpful resources:
- How to Meet Short-Circuit Current Rating Requirements
- Code changes affecting Short Circuit Current Ratings based on the 2017 NEC