Code Hunter: Dwelling Units, NEC-2020

Code Hunter
Reading Time: < 1 minute

To play this game, you need a sharp eye, a quick mind, and a 2020 National Electrical Code book.

(Fill-in-the-blank questions are looking for the exact words) used in the NEC). The 2020 NEC can be accessed online for free at nfpa.org/70. Purchase the print edition from our IAEI Store.

1. Surge protection is required for dwelling unit services.
 
 
2. An outside emergency disconnect is required for one- and two-family dwelling units.
 
 
3. Receptacles located above the rim of a bathtub must be GFCI protected.
 
 
4. GFCI protection for personnel is not required for 240-volt outlets that supply a boat hoist installed at dwelling unit docking facilities.
 
 
5. A single-phase pool pump motor rated 230 volts and 50 amperes requires Class A GFCI protection.
 
 
6. Solar PV systems on private homes are permitted up to 1000 volts.
 
 
7. A receptacle is required within two feet of the end of a peninsular countertop.
 
 
8. Hard-wired residential generators are required to have a disconnect located outside the building.
 
 
9. In dwelling units, 250-volt receptacles are required to be protected by a ground-fault circuit-interrupter (GFCI).
 
 
10. Outdoor air conditioning units for dwelling units do not require GFCI protection.
 
 
11.

Bonus Question

Are 14 AWG copper-clad aluminum conductors permitted for branch circuits in dwelling units?
 
 

 

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