EVITP EV Charging Standards — Questions and Answers
Question 1: What are the three levels of EV charging?
- Level 1 (120V AC), Level 2 (240V AC), and Level 3/DC Fast Charging (Correct answer)
- Low, Medium, High
- Slow, Normal, Turbo
- Basic, Standard, Premium
Correct answer: Level 1 (120V AC), Level 2 (240V AC), and Level 3/DC Fast Charging
Level 1 uses standard 120V outlets, Level 2 uses 240V, and Level 3 provides high-power DC directly to the battery.
Question 2: What connector type is standard for Level 2 charging in North America?
- SAE J1772 (Correct answer)
- CHAdeMO
- Type 2 Mennekes
- GB/T
Correct answer: SAE J1772
SAE J1772 is the North American standard for Level 1 and Level 2 AC charging.
Question 3: What is the NEC article governing EV charging installations?
- Article 625 (Correct answer)
- Article 210
- Article 240
- Article 480
Correct answer: Article 625
NEC Article 625 specifically covers Electric Vehicle Power Transfer Systems.
Question 4: What is the continuous load rule for EV charging?
- Circuit breaker must be rated at 125% of maximum load (Correct answer)
- Breaker matches load exactly
- 50% of load rating
- No specific rule
Correct answer: Circuit breaker must be rated at 125% of maximum load
EV charging is a continuous load requiring 125% circuit rating.
Question 5: What is a CCS connector?
- Combined Charging System adding DC pins to J1772 for fast charging (Correct answer)
- A cable management system
- A circuit monitoring device
- A solar charging connector
Correct answer: Combined Charging System adding DC pins to J1772 for fast charging
CCS combines J1772 AC connector with DC fast charging pins.
Question 6: What is load management for multiple EV chargers?
- Distributing available capacity among chargers to stay within limits (Correct answer)
- A billing system
- A scheduling app
- A parking management system
Correct answer: Distributing available capacity among chargers to stay within limits
Load management shares limited electrical capacity among multiple charging points.
EVITP EV Charging Standards
What are the three levels of EV charging?