Code Hunter: 2023 NEC® Preview

To play this game, you need a sharp eye, a quick mind and a 2023 National Electrical Code book. The NEC can be accessed for free at nfpa.org/70. (Fill-in-the-blank questions are looking for the exact word(s) used in the NEC.)

1. The definition of “fibers/flyings, ignitible” is found in Article __________.

 
 
 
 

2. The definition of “busbar” in Article 100 applies __________ .

 
 
 
 

3. Open equipment doors must not impede access to or from the working space required in 110.26. If the door(s) reduce(s) the access to less than __________ inches wide and 6 ½ feet high, access is considered impeded.

 
 
 
 

4. For the purposes of load calculations, the square footage of a dwelling unit includes __________.

 
 
 
 

5. For electric vehicle supply equipment (EVSE), the larger of either the nameplate or __________ VA is used for calculating loads.

 
 
 
 

6. If the emergency disconnecting means required in 230.85 for dwelling units is a meter disconnect, it must be __________ the meter mounting equipment.

 
 
 
 

7. The requirements for overcurrent protection of circuits rated greater than 1,000V ac or 1,500V dc are found in Article__________.

 
 
 
 

8. If a panelboard is not listed for the enclosure it is installed in, it must be evaluated for the application if the available fault current exceeds __________ amperes.

 
 
 
 

9. When calculating box fill for conductors smaller than 4 AWG, a terminal block is counted as __________ conductor volume(s), based on the largest conductor terminated to it.

 
 
 
 

10. The disconnecting means for air-conditioning equipment must__________.

 
 
 
 

11. Bonus Question

Q The rapid shutdown requirement for PV systems does not apply to unenclosed detached structures such as __________ .

 
 
 
 

Christel Hunter
Christel Hunter is vice president of engineering for Cerro Wire. Chris is a senior associate member of IAEI and serves as President for the Southern Nevada Chapter of IAEI. Chris also serves on NEC CMP-6 and CMP-13, NFPA 921, NFPA 70B, NFPA 73 and UL STPs 62, 83, 719 and 4703. Chris is a Certified Standards Professional, Master Electrician, and LEED Accredited Professional.