Change Summary

• The AFCI protection requirements are expanded to outlets installed in dormitory unit bedrooms, living rooms, hallways, closets, and similar rooms
• A new subdivision (C) titled Dormitory Units has been added to 210.12
• This new subdivision continues the incremental expansion of AFCI protection for dwelling unit

Expert Analysis

This new subdivision (C) in 210.12 extends the AFCI protection requirements to branch circuits supplying outlets installed in dormitory unit bedrooms, living rooms, hallways, closets, and similar rooms. Information included in the proposal drew the comparison between occupants in dwelling units and habitants living in dormitories. The same conditions that warrant AFCI protection in dwelling units also exist in these types of living quarters for students. Substantiation with Comment 2-37 provided references to statistical comparisons between fires in dwelling units and dormitories and provided the justification needed to require AFCI protection in dormitories. Additionally, the submitter emphasized the changes and evolution taking place in dormitory properties themselves. In the past, dormitories typically did not have kitchens in the individual units. Today, dormitories often closely resemble apartment buildings with suite style apartments that include kitchens and many of the same features found in dwelling units as defined. The result is a requirement for AFCI protection by a listed arc-fault circuit interrupter meeting the requirements of 210.12(A)(1) through (6) as appropriate.

Leviton Comment

Dormitories present unique challenges for AFCI protection. Quite often people living in these quarters do not have access to breaker panels to conduct monthly test/reset procedures to ensure the devices are functioning properly. For this reason AFCI Receptacles can be very advantageous in dormitories and similar dwelling areas. Since receptacles can be reset at point of use, they are a convenient and preferred method of AFCI protection among inhabitants and facility personnel.

Leviton AFCI Receptacles for Every Application

• Automatically tests the AFCI every time the RESET button is depressed; the AFCI will not reset if the AFCI circuit is not functioning properly
• By blocking reset of the AFCI if protection has been compromised, the SmartlockPro® OBC AFCI reduces the possibility of end-users incorrectly assuming that a reset AFCI is providing protection when its functionality has been compromised
• A line-load reversal diagnostic feature is provided which prevents the AFCI from being reset and stops power from being fed to the AFCI receptacle face or through to downstream devices; a green LED indicator on the AFCI’s face also illuminates to alert the installer when the AFCI is Line/Load miss-wired
• TR symbol indicates the device’s compliance with the latest NEC® requirements for tamper-resistant receptacles in residences, childcare facilities, dormitories and other areas
• Device design reduces nuisance tripping
• Impact-resistant thermoplastic cover and body
• Superior resistance to electrical surges and over-voltages
• Terminals allow for easy wiring options — back and side wire capable
• Compatible with all Decora® devices and wallplates; available in select color