Mike Dolt Enterprises
Mike Dolt Enterprises
User: Bjenks, Location: East Coast of FL
Asked on: Thursday, April 28, 2011 at 5:06 pm EDT
Answered on: Tuesday, May 14, 2024 at 4:46 am EDT
Question: When determining when to implement NEC 230.32, when is a building considered still part of the original building. I swear I found that definition either in the NEC or the Florida Building Code. I can't find it anything right now. I have three buildings on a residence that are by the pool. One is a bathroom, then a Storage room, and then a shower room. One is connects to the other by a lattice roof and the other doesn't have the lattice roof, but is connected by a short wall and metal gate. I would hate to have to run panels with GEC in each structure as each one will require more than one circuit. Oh and one of the buildings also has a pool panel on the outside of it. All of them are fed from the main residence which also connects to these three structures by a short wall and gate.If you have a code definition, please let me know.
NEC Definition of "Original Building"
The NEC does not provide a specific definition of "original building." However, Section 230.32 refers to "buildings or structures which have been added to the original building or structure." This implies that the "original building" is the main structure that was first constructed.
Florida Building Code Definition of "Original Structure"
The Florida Building Code (FBC) defines "original structure" in Section 101.5.2 as:> "A structure existing prior to the latest amendment to the applicable code."This definition is based on the time of construction and the code requirements at the time of construction.
Analysis of Your Situation
Based on the definitions provided above, it is generally accepted that the "original building" is the main residence, which was constructed first. The three buildings by the pool would be considered "additions to the original building."However, the specific determination of whether the three buildings are "additions" or separate structures may depend on factors such as: The physical connection between the buildings The date of construction of each building The intended use of each building Local building code interpretations
Recommendation
To avoid any potential confusion or code violations, it is recommended to consult with the local building inspector for clarification on how these buildings should be treated. The inspector can provide guidance based on the specific circumstances and the applicable code requirements in your jurisdiction.
Additional Considerations
Regarding the need for a GEC in each structure, it is important to consider the following:
Section 250.104(A) of the NEC requires a GEC for any building or structure that is not connected to the service disconnect with an equipment grounding conductor of an approved size. Section 250.28(B) of the FBC requires a grounding electrode system for any dwelling unit.Therefore, it is likely that each of the three buildings will require a GEC, as they are not directly connected to the service disconnect at the main residence and they are each intended for human occupancy. Flag for review