EV Home Charging Safety: What's The NEC 80% Rule For EV Charging & Why Does It Matter?

08 Apr 2023 | Abstracted from Clean Technica

"The NEC 80% rule stipulates that for EV charging, electrical circuits should not be continuously loaded to more than 80% of their maximum rated capacity. This means that for a standard 240V 30amp household dryer circuit, if you wish to use it for EV charging you must limit your charging rate to 24 amps...it's only simple if you're aware of this risk and set your EV charging rate appropriately.

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