EVITP Installation Best Practices 4

Question 1

Per NEC 625.40, how must each outlet installed for EV charging be supplied?

Accepted Answer

By an individual branch circuit with no other outlets

Answer

NEC 625.40 requires an individual branch circuit for each EV charging outlet.

Question 2

A homeowner wants a NEMA 14-50 receptacle in the garage for EV charging. What protection does the 2020/2023 NEC require for this receptacle?

Accepted Answer

GFCI protection for personnel

Answer

NEC 625.54 requires GFCI protection for personnel on all receptacles installed for EV charging.

Question 3

What listing standard is commonly referenced for AC Level 2 EVSE in the United States?

Accepted Answer

UL 2594

Answer

UL 2594 covers electric vehicle supply equipment, while UL 2202 covers EV charging system equipment such as DC chargers.

Question 4

A 75 A circuit uses equipment with terminals not marked for a temperature rating. Which ampacity column should the installer use for conductor sizing per NEC 110.14(C)?

Accepted Answer

60°C column

Answer

For circuits 100 A or less with unmarked terminals, conductor ampacity is based on the 60°C column.

Question 5

When planning a commercial EVSE site, which step should occur earliest to avoid costly redesign?

Accepted Answer

Performing a site assessment including available capacity and utility coordination

Answer

Early site assessment and utility coordination confirm capacity, service requirements, and layout before design is finalized.

(EVITP) Electric Vehicle Infrastructure Program Practice Test

(EVITP) Electric Vehicle Infrastructure Program Practice Test

EVITP Installation Best Practices 4