- Chapel Hill, NC
- Retired Electrical Contractor
It looks like they over looked an issue with making ranges 240V gfci protected. This tia is up for vote
NFPA 70®-2020 Edition National Electrical Code® TIA Log No.: 1563 Reference: 210.8(A)(7) Exception (new) Comment Closing Date: April 28, 2021 Submitter: Matt Williams/Randy Cooper, Association of Home Appliance Manufacturers www.nfpa.org/70 1. Revise Section 210.8(A)(7) to read as follows: 210.8 Ground-Fault Circuit-Interrupter Protection for Personnel. … (A) Dwelling Units. … (7) Sinks – where receptacles are installed within 1.8 m (6 ft) from the top inside edge of the bowl of the sink.
Exception to (7): This requirement shall become effective January 1, 2023, for cooking range receptacles rated 30 amperes through 50 amperes that are supplied by single-phase branch circuits rated 150 volts or less to ground.
Substantiation: While this expanded GFCI protection for greater than 125 volt receptacles is in the 2020 NEC, standards for cooking range products connected to these outlets have not been harmonized with this protection (UL 858). The 210.8(A)(7) language creates a product requirement that is beyond the listing requirement in UL 858, this has created tripping. Until the UL product standard is harmonized, designers, installers, AHJs, and consumers are forced to choose between a compliant installation and an operational installation. The purpose of this proposed TIA is not to eliminate the GFCI protection but just postpone the effectivity of the higher voltage range receptacles. This will provide time for the NEC, product standards, and product certification to be harmonized. This non-compatibility is currently being addressed in UL processes. AHAM is working to submit a proposal to UL 858 to add leakage current requirements for 240 volt products. However, since this requirement did not exist previously, there are significant technical issues that need to be resolved prior to submission of the proposal. It will take time to align the standards and certify new products to those new standards so the requirement effectivity date of 2023 is appropriate. The precipitating event that drove the extension of GFCI’s was linked to a recalled product. However, a GFCI would have tripped on this product due to the missing grounding strap screw. Since this was a recalled product, it should not be considered representative of the millions of ranges produced each year that are compliant to the UL 858 standard in regards to grounding with a solid 4-wire connection. Section 90.4 allows jurisdictions to approve the use of products, constructions, or materials that comply with the most recent previous edition of this Code (2017). This TIA is meant to formalize such allowances so that individual AHJ approval is not needed.