Level 2 Car Charging Station

[hhsting]

I have level 2 car charging station install outside parking lot of grocery store. The charger is fed from inside the electric room panelboard A of the grocery store located way at the opposite end of the store.

The branch circuit from Panelboard A has phase, neutral and equipment grounding conductor. Was wondering if any type of grounding electrode is required at the level 2 car charging station? I looked but maybe I overlooked NEC 2014 section 625. Anyone please help or let me know your opinion

 

[tom baker]

Not required. What makes you think a ground rod is needed?

 

[hhsting]

I have level 2 car charging station install outside parking lot of grocery store. The charger is fed from inside the electric room panelboard A of the grocery store located way at the opposite end of the store.

The branch circuit from Panelboard A has phase, neutral and equipment grounding conductor. Was wondering if any type of grounding electrode is required at the level 2 car charging station? I looked but maybe I overlooked NEC 2014 section 625. Anyone please help or let me know your opinion

Sorry forgot to add but time ran out. There are 2 branch circuits from panelboard A to the level 2 car charging station: one is 120V single phase and other 208V single phase


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[suemarkp]

Hmmm. What allows two branch circuit to be run to that separate structure? Perhaps the "different characteristics" exception for 208V and 120V? But that could have been obtained in a multiwire branch circuit or feeder. I imagine the circuit sizes are different. With a multiwire branch circuit or two branch circuits, I don't believe a ground electrode is required. With a feeder, it would. Wonder what the install instructions say.

 

[hillbilly1]

Installed probably fifty of them, all inspected, never had to drive a ground rod. Even in North Carolina where some jurisdictions consider a post a structure! LOL!

 

[don_resqcapt19]

Hmmm. What allows two branch circuit to be run to that separate structure? Perhaps the "different characteristics" exception for 208V and 120V? But that could have been obtained in a multiwire branch circuit or feeder. I imagine the circuit sizes are different. With a multiwire branch circuit or two branch circuits, I don't believe a ground electrode is required. With a feeder, it would. Wonder what the install instructions say.

The definition of "structure" was change to exclude "equipment" in the 2017 code for this very reason. I see the charging stations as equipment and not as a structure.

 

[hhsting]

The definition of "structure" was change to exclude "equipment" in the 2017 code for this very reason. I see the charging stations as equipment and not as a structure.

But not in NEC 2014 which install needs to comply