EVITP Exam Final Prep 2026–2028 | 130 Practice Questions &
Answers | Electric Vehicle Infrastructure Training Program
(EVITP) Certification Study Guide
Prepare for the EVITP (Electric Vehicle Infrastructure Training Program) Certification Exam
with this comprehensive study guide featuring original practice questions, detailed answer
explanations, and exam-focused review material. Topics include EV charging system
installation, NEC requirements, electrical safety, load calculations, grounding and bonding,
branch circuits, overcurrent protection, EVSE equipment, commissioning, troubleshooting, and
code compliance. Designed to strengthen technical knowledge and improve certification
readiness, this guide is ideal for electricians, electrical contractors, inspectors, and EV charging
professionals.
Question 1
An electrical contractor is installing a Level 2 Electric Vehicle Supply Equipment (EVSE)
unit that has a continuous nameplate current rating of 40 Amperes. According to NEC
Article 625, what is the minimum overcurrent protection device (OCPD) rating required
for this circuit?
A) 40 Amperes
B) 45 Amperes
C) 50 Amperes
D) 60 Amperes
Rationale: Under NEC Article 625, EV charging loads are classified as continuous
loads. Therefore, the overcurrent protection device and the branch circuit conductors
must be sized at 125% of the maximum load. Calculating 40 Amperes × 1.25 equals 50
Amperes.
Question 2
An installer needs to provision a branch circuit for a commercial Level 2 EVSE unit with
a continuous nameplate rating of 48 Amperes. What is the minimum standard ampacity
rating of the circuit breaker and the minimum copper conductor size assuming THHN
wire in a 75°C terminal environment?
A) 50A Breaker, #8 AWG
B) 60A Breaker, #6 AWG
C) 60A Breaker, #8 AWG
D) 70A Breaker, #4 AWG
,Rationale: Sizing for a continuous load requires 125% of the nameplate current: 48A ×
1.25 = 60A. A standard 60-Ampere overcurrent protection device is required. According
to NEC Table 310.16, #6 AWG copper wire has an ampacity of 65A at 75°C, making it
the minimum size capable of safely carrying the 60A continuous load requirement.
Question 3
A fleet facility is deploying an automated Energy Management System (EMS) to
dynamically control and limit the power allocation across ten new EV chargers. Under
NEC 625.42, how can the branch-circuit and feeder calculations be determined for this
installation?
A) The calculation must always sum the maximum nameplate ratings of all ten EVSE
units combined.
B) The calculation can be discounted by an arbitrary 50% demand factor for commercial
spaces.
C) The maximum engineering load can be calculated based on the maximum
setting allocated by the EMS.
D) An EMS cannot legally be used to alter the continuous load calculation requirements
of NEC 625.
Rationale: NEC 625.42 permits the maximum load of EVSE infrastructure to be
determined by the maximum setting of an active Energy Management System (EMS) or
automatic load management system, rather than the raw sum of all connected
equipment nameplates, provided the system is marked and rated for the application.
Question 4
When performing service load calculations for a single-family dwelling under NEC
Article 220, how must an added 9.6 kW, 240V Level 2 EVSE load be treated in the
calculations?
A) It can be omitted if the home has a smart utility meter.
B) It is factored at 100% since it is a residential appliance.
C) It must be factored at 125% as a continuous load added to the general load
calculation.
D) It can be applied to the optional calculation method at a 40% demand factor.
Rationale: Because an EV charger is defined as a continuous load by NEC 625.41, any
standard calculation under Article 220 must account for its load at 125% of its rated
capacity, ensuring the service feeder and panelboard possess adequate capacity for
extended charging cycles.
,Question 5
An commercial installation features four Level 2 EVSE units, each rated for 32 Amperes
continuous load. If these units are fed from a single distribution subpanel without an
automatic load management system, what is the minimum calculated load that must be
contributed to the feeder supplying this subpanel?
A) 128 Amperes
B) 160 Amperes
C) 144 Amperes
D) 200 Amperes
Rationale: Without an EMS system to limit power, the total load must sum all units at
continuous rating capacity. Total current = 4 units × 32 Amperes = 128 Amperes.
Applying the continuous load multiplier: 128A × 1.25 = 160 Amperes.
Question 6
An industrial facility is deploying a 150 kW DC Fast Charging (DCFC) station supplied
by a 480-volt, 3-phase system. Neglecting efficiency losses, what is the approximate
continuous primary current drawn by this equipment?
A) 312 Amperes
B) 225 Amperes
C) 180 Amperes
D) 150 Amperes
Rationale: For a three-phase system, Power (W) = Voltage (V) × Current (I) × √3
(1.732). Rearranging for current: I = 150,000 Watts / (480 Volts × 1.732) = 150,000 /
831.36 ≈ 180.4 Amperes.
Question 7
A branch circuit supplies a specific 80-Ampere commercial EVSE unit. According to
NEC 625.43, what unique requirement must be met if the overcurrent device or circuit
rating exceeds a specific configuration threshold?
A) It must use aluminum wiring exclusively.
B) A lockable disconnecting means must be provided in a readily accessible
location.
C) It requires a dedicated isolation transformer.
D) It must feature an active liquid cooling loop inside the conduit.
, Rationale: NEC 625.43 dictates that for EVSE rated more than 60 Amperes or more
than 150 Volts to ground, a disconnecting means must be provided. This disconnect
must be lockable open, isolated, and installed in a readily accessible location.
Question 8
An engineering team is sizing a three-phase dry-type transformer to support a cluster of
Level 2 EV chargers totaling 90 kVA of continuous load. What is the minimum standard
kVA rating required for this transformer to avoid over-allocation?
A) 75 kVA
B) 100 kVA
C) 112.5 kVA
D) 150 kVA
Rationale: Continuous loads on transformers must also follow safety buffers or be
calculated at 125% of continuous capacity if not specifically rated for 100% operation.
90 kVA × 1.25 = 112.5 kVA. Therefore, a standard 112.5 kVA commercial transformer is
the correct match.
Question 9
What is the minimum sizing requirement for the equipment grounding conductor (EGC)
run to a Level 2 EVSE unit that is protected by a 40-Ampere circuit breaker?
A) #12 AWG Copper
B) #10 AWG Copper
C) #8 AWG Copper
D) #6 AWG Copper
Rationale: According to NEC Table 250.122, an overcurrent protection device rated at
40 Amperes requires a minimum equipment grounding conductor size of #10 AWG
copper (or #8 AWG aluminum).
Question 10
A commercial parking lot project uses a schedule 40 PVC conduit run underground to
feed an outdoor EVSE pedestal. Because the circuit is subject to thermal expansion and
contraction over seasonal shifts, what specific fitting must be integrated into the conduit
run?
Answers | Electric Vehicle Infrastructure Training Program
(EVITP) Certification Study Guide
Prepare for the EVITP (Electric Vehicle Infrastructure Training Program) Certification Exam
with this comprehensive study guide featuring original practice questions, detailed answer
explanations, and exam-focused review material. Topics include EV charging system
installation, NEC requirements, electrical safety, load calculations, grounding and bonding,
branch circuits, overcurrent protection, EVSE equipment, commissioning, troubleshooting, and
code compliance. Designed to strengthen technical knowledge and improve certification
readiness, this guide is ideal for electricians, electrical contractors, inspectors, and EV charging
professionals.
Question 1
An electrical contractor is installing a Level 2 Electric Vehicle Supply Equipment (EVSE)
unit that has a continuous nameplate current rating of 40 Amperes. According to NEC
Article 625, what is the minimum overcurrent protection device (OCPD) rating required
for this circuit?
A) 40 Amperes
B) 45 Amperes
C) 50 Amperes
D) 60 Amperes
Rationale: Under NEC Article 625, EV charging loads are classified as continuous
loads. Therefore, the overcurrent protection device and the branch circuit conductors
must be sized at 125% of the maximum load. Calculating 40 Amperes × 1.25 equals 50
Amperes.
Question 2
An installer needs to provision a branch circuit for a commercial Level 2 EVSE unit with
a continuous nameplate rating of 48 Amperes. What is the minimum standard ampacity
rating of the circuit breaker and the minimum copper conductor size assuming THHN
wire in a 75°C terminal environment?
A) 50A Breaker, #8 AWG
B) 60A Breaker, #6 AWG
C) 60A Breaker, #8 AWG
D) 70A Breaker, #4 AWG
,Rationale: Sizing for a continuous load requires 125% of the nameplate current: 48A ×
1.25 = 60A. A standard 60-Ampere overcurrent protection device is required. According
to NEC Table 310.16, #6 AWG copper wire has an ampacity of 65A at 75°C, making it
the minimum size capable of safely carrying the 60A continuous load requirement.
Question 3
A fleet facility is deploying an automated Energy Management System (EMS) to
dynamically control and limit the power allocation across ten new EV chargers. Under
NEC 625.42, how can the branch-circuit and feeder calculations be determined for this
installation?
A) The calculation must always sum the maximum nameplate ratings of all ten EVSE
units combined.
B) The calculation can be discounted by an arbitrary 50% demand factor for commercial
spaces.
C) The maximum engineering load can be calculated based on the maximum
setting allocated by the EMS.
D) An EMS cannot legally be used to alter the continuous load calculation requirements
of NEC 625.
Rationale: NEC 625.42 permits the maximum load of EVSE infrastructure to be
determined by the maximum setting of an active Energy Management System (EMS) or
automatic load management system, rather than the raw sum of all connected
equipment nameplates, provided the system is marked and rated for the application.
Question 4
When performing service load calculations for a single-family dwelling under NEC
Article 220, how must an added 9.6 kW, 240V Level 2 EVSE load be treated in the
calculations?
A) It can be omitted if the home has a smart utility meter.
B) It is factored at 100% since it is a residential appliance.
C) It must be factored at 125% as a continuous load added to the general load
calculation.
D) It can be applied to the optional calculation method at a 40% demand factor.
Rationale: Because an EV charger is defined as a continuous load by NEC 625.41, any
standard calculation under Article 220 must account for its load at 125% of its rated
capacity, ensuring the service feeder and panelboard possess adequate capacity for
extended charging cycles.
,Question 5
An commercial installation features four Level 2 EVSE units, each rated for 32 Amperes
continuous load. If these units are fed from a single distribution subpanel without an
automatic load management system, what is the minimum calculated load that must be
contributed to the feeder supplying this subpanel?
A) 128 Amperes
B) 160 Amperes
C) 144 Amperes
D) 200 Amperes
Rationale: Without an EMS system to limit power, the total load must sum all units at
continuous rating capacity. Total current = 4 units × 32 Amperes = 128 Amperes.
Applying the continuous load multiplier: 128A × 1.25 = 160 Amperes.
Question 6
An industrial facility is deploying a 150 kW DC Fast Charging (DCFC) station supplied
by a 480-volt, 3-phase system. Neglecting efficiency losses, what is the approximate
continuous primary current drawn by this equipment?
A) 312 Amperes
B) 225 Amperes
C) 180 Amperes
D) 150 Amperes
Rationale: For a three-phase system, Power (W) = Voltage (V) × Current (I) × √3
(1.732). Rearranging for current: I = 150,000 Watts / (480 Volts × 1.732) = 150,000 /
831.36 ≈ 180.4 Amperes.
Question 7
A branch circuit supplies a specific 80-Ampere commercial EVSE unit. According to
NEC 625.43, what unique requirement must be met if the overcurrent device or circuit
rating exceeds a specific configuration threshold?
A) It must use aluminum wiring exclusively.
B) A lockable disconnecting means must be provided in a readily accessible
location.
C) It requires a dedicated isolation transformer.
D) It must feature an active liquid cooling loop inside the conduit.
, Rationale: NEC 625.43 dictates that for EVSE rated more than 60 Amperes or more
than 150 Volts to ground, a disconnecting means must be provided. This disconnect
must be lockable open, isolated, and installed in a readily accessible location.
Question 8
An engineering team is sizing a three-phase dry-type transformer to support a cluster of
Level 2 EV chargers totaling 90 kVA of continuous load. What is the minimum standard
kVA rating required for this transformer to avoid over-allocation?
A) 75 kVA
B) 100 kVA
C) 112.5 kVA
D) 150 kVA
Rationale: Continuous loads on transformers must also follow safety buffers or be
calculated at 125% of continuous capacity if not specifically rated for 100% operation.
90 kVA × 1.25 = 112.5 kVA. Therefore, a standard 112.5 kVA commercial transformer is
the correct match.
Question 9
What is the minimum sizing requirement for the equipment grounding conductor (EGC)
run to a Level 2 EVSE unit that is protected by a 40-Ampere circuit breaker?
A) #12 AWG Copper
B) #10 AWG Copper
C) #8 AWG Copper
D) #6 AWG Copper
Rationale: According to NEC Table 250.122, an overcurrent protection device rated at
40 Amperes requires a minimum equipment grounding conductor size of #10 AWG
copper (or #8 AWG aluminum).
Question 10
A commercial parking lot project uses a schedule 40 PVC conduit run underground to
feed an outdoor EVSE pedestal. Because the circuit is subject to thermal expansion and
contraction over seasonal shifts, what specific fitting must be integrated into the conduit
run?
