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Thursday, November 9, 2023
Question:
Hi Code Question of The Day. Why did the grounding rules get changed? I am very confused as to why one wire must connect from a splice to a device, then another from the ground to a device, and then finally one from the feed to the splice. The way before was fine and had no issues. Caleb Perez
A
Answer:
Hello Caleb, thank you for the questions. The changes to Sections 250.146 & 250.148 over the last 2 revisions of the NEC® regarding equipment grounding conductors and equipment bonding jumpers for boxes and devices was done for the following reasons:
- To ensure proper terminology was being used, the rules in Article 250 are often misapplied simply because of the use of incorrect terminology.
- To ensure an effective equipment grounding path was maintained and not reliant on a device or equipment bonding jumper.
- To ensure the required equipment bonding jumpers were effective at providing non-energized parts from becoming energized.
The history of any revision to a specific
NEC® section, including the Code Making Panels statement as to why the change was made, is available to the public on NFPA’s website at:
www.NFPA.org/70 you can view the revisions to the current or prior editions of the
NEC®.