Electric vehicle charging station

[mjesse]

For the electrical gurus.

Is it reasonable to request that a readily accessible disconnecting means be provided for a 40A 240V bollard mounted EVCS.

2008 NEC 625.23 only requires the disconnect if more than 60A or 150V to ground.

As a worst case scenario, I am imagining a vehicle taking out the bollard and exposing the live wires. Proposed location is at the curb, 8 feet away from the building wall. IMO, it seems like a disconnect at the building wall is reasonable.

Thoughts?

Thanks

 

[Dr. J]

You answered your own question. Disconnect required if more than 60A OR 150V. 240 is more than 150 - thus disconnect.

 

[mjesse]

You answered your own question. Disconnect required if more than 60A OR 150V. 240 is more than 150 - thus disconnect.

I may be mis-interpreting (I'm no electrician) but I thought a 120/240 service was considered as 120V to ground. ops

 

[Msradell]

I may be mis-interpreting (I'm no electrician) but I thought a 120/240 service was considered as 120V to ground. ops

That's my interpretation also, it's only 240 volts between phases so it wouldn't be required by code to have one. I do agree with your opinion that in this situation it certainly would be a positive move to have one. Is it going to be on GFCI breaker since it is an outside application? If it's on one the hazard risk would be considerably lower.