For service and feeder calculations, the EVSE load shall be calculated at either ___ or the nameplate rating of the equipment, whichever is larger.

For service and feeder calculations, the EVSE load shall be calculated at either ___ or the nameplate rating of the equipment, whichever is larger.

• A. 1500 VA
• B. 3000 VA
• C. 5800 VA
• D. 7200 VA

Answer: (D)

When sizing service and feeders for electric vehicle charging equipment, you must use the larger of a fixed minimum load or the actual nameplate rating of the EVSE. The fixed minimum load used in practice is 7,200 VA, which acts as a floor to ensure the electrical system is capable of handling typical or simultaneous charging scenarios. So, if the EVSE’s nameplate rating is below 7,200 VA, you use 7,200 VA; if the nameplate rating is higher than 7,200 VA, you use the higher nameplate rating. For example, a 5 kW charger would be treated as 7,200 VA, while a 9 kW charger would be 9,000 VA. This approach prevents undersizing the service and feeders and accounts for potential real-world usage.

When sizing service and feeders for electric vehicle charging equipment, you must use the larger of a fixed minimum load or the actual nameplate rating of the EVSE. The fixed minimum load used in practice is 7,200 VA, which acts as a floor to ensure the electrical system is capable of handling typical or simultaneous charging scenarios. So, if the EVSE’s nameplate rating is below 7,200 VA, you use 7,200 VA; if the nameplate rating is higher than 7,200 VA, you use the higher nameplate rating. For example, a 5 kW charger would be treated as 7,200 VA, while a 9 kW charger would be 9,000 VA. This approach prevents undersizing the service and feeders and accounts for potential real-world usage.