Mike Dolt Enterprises
Mike Dolt Enterprises
User: Bullcub145, Location: Savanna, IL
Asked on: Friday, April 1, 2011 at 3:20 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:38 am EDT
Question: I am having a bit of an argument with my department manager about whether or not the code applies to all things. The industrial plant I work at has never really been upgraded over the years, I am incharge of doing the upgrades to distribution systems. I am currently trying to bring all the outlets in the plant up to the code for GFCI protection. This is not the issue as much as the issue over whether or not an in-use cover shall be used in all damp and wet locations. While we do agree on the fact that they need to be used, we disagree as to which outlets nee them. I say ALL outlets in damp and wet locations need them. He say only those outlets that are installed after the code change had been impllemented. Can someone help me with this dilema? I nned to know if there is such a thing as a grandfather clause when it comes to the NEC.
Applicability of Code to Existing Installations
The National Electrical Code (NEC) is a minimum standard for the safe installation and use of electrical equipment. It is generally applicable to new installations and major renovations.
GFIs in Damp and Wet Locations
Article 406.4 of the NEC requires ground-fault circuit interrupters (GFCIs) for outlets in damp or wet locations. A "damp location" is defined as one where moisture is likely to condense, while a "wet location" is one where water is present or may be sprayed or splashed.
Grandfathering
The NEC does not have a general grandfather clause. However, there are exceptions to some rules for existing installations that were installed prior to the adoption of the current NEC.
Specific Exception for GFCIs
Specifically for GFCIs, Article 406.4(A)(4) states that GFCIs are not required for existing outlets that were installed before the effective date of the NEC requiring GFCIs in those locations.
Interpretation
In your case, if the industrial plant has never been upgraded over the years, it is likely that the existing outlets were installed before the NEC required GFCIs in damp and wet locations. Therefore, your department manager is correct that GFCIs are not required for those outlets under the grandfathering exception.However, if any new outlets are being installed or existing outlets are being replaced, GFCIs would be required according to Article 406.4 of the NEC.
Recommendations Review the NEC and consult with a qualified electrician to confirm the specific requirements for your plant. Prioritize the use of GFCIs in damp and wet locations, even if not required by code, for enhanced safety.* Consider using in-use covers for all outlets in damp and wet locations to provide additional protection against moisture ingress. Flag for review