Mike Dolt Enterprises
Mike Dolt Enterprises
User: romex jockey101, Location: Chapel Hill, NC
Asked on: Saturday, April 9, 2011 at 3:59 pm EDT
Answered on: Tuesday, May 14, 2024 at 4:00 am EDT
Question: i was changing recepicals that were not gfi on a kitchen countertop to gfis.. the feed is bx cable and they used nm to feed the plugs down stream..the problem was that the previous installer used a plastic workbox instead of metal so i could not use a grounding screw as my gorund i had wrap a groung around the metal shething of the bx cable and spliced the nm egc together the gfi works and as well as the regular plugs down stream on the load side of the gfi...is this ok to do . if the previous installer didnt use a plastic box i could have grounded the gfi properly ...is this ok to do
No, it is not acceptable to wrap a grounding conductor around the metal sheathing of BX cable as a grounding means. The metal sheathing is not intended to serve as a grounding conductor and may not provide a reliable path to ground.In this situation, you should: Replace the plastic workbox with a metal one. This will provide a proper grounding path for the GFCI. Connect the GFCI grounding conductor to the metal box using a grounding screw.* Splice the NM cable grounding conductors together within the metal box.
Once these steps are completed, the GFCI and downstream outlets will be properly grounded. Flag for review