EVITP Installation Best Practices 2 — Questions and Answers
Question 1: What is the proper wire pulling technique for EV conduit?
- Apply lubricant, use proper equipment, respect tension limits, observe fill ratios (Correct answer)
- Just push wire through
- Use water as lubricant
- No technique needed
Correct answer: Apply lubricant, use proper equipment, respect tension limits, observe fill ratios
Multiple techniques protect wire insulation during installation.
Question 2: What is the purpose of a disconnect switch for EV equipment?
- Complete de-energization for maintenance and emergencies (Correct answer)
- Control charging speed
- Connect multiple chargers
- Switch charging modes
Correct answer: Complete de-energization for maintenance and emergencies
A disconnect allows complete isolation from power for safety.
Question 3: What is the difference between Level 2 and DC fast charging voltage?
- Level 2 is 208-240V AC; DC fast is 200-1000V DC (Correct answer)
- Both are 120V
- Level 2 is higher
- No difference
Correct answer: Level 2 is 208-240V AC; DC fast is 200-1000V DC
DC fast charging operates at much higher voltages.
Question 4: What is the role of EVSE?
- Managing power delivery safely between supply and vehicle (Correct answer)
- A fancy extension cord
- The car battery charger
- A solar panel
Correct answer: Managing power delivery safely between supply and vehicle
EVSE is the intelligent interface between grid and vehicle.
Question 5: What permits are needed for EV charger installation?
- Electrical permit and inspection from local jurisdiction (Correct answer)
- No permits needed
- Only for commercial installations
- Self-certification is sufficient
Correct answer: Electrical permit and inspection from local jurisdiction
Most jurisdictions require permits and inspections for new electrical installations.
Question 6: What is energy management integration for EV charging?
- Coordinating EV charging with building energy systems and solar/storage (Correct answer)
- A separate billing system
- A lighting control
- An HVAC setting
Correct answer: Coordinating EV charging with building energy systems and solar/storage
Integrating EV charging with other building systems optimizes energy use.
EVITP Installation Best Practices 2
What is the proper wire pulling technique for EV conduit?