Energy-Miser
Senior Member
- Location
- Maryland
Does the GEC from inverter of solar system have to be sized according to table 250.66?
690.47 doesn't really say one way or another, even if you follow all the references. Simply put, the inverter's(s') output is a grounded AC system and is thus grounded accordingly. IMO, the answer to your question is basically yes.Does the GEC from inverter of solar system have to be sized according to table 250.66?
Just a thought, is this for the Enphase system from your other post. If this is for a micro-inverter system, remember no matter how well protected the GEC is under the array, it is not conduit.:grin: So consider 250.64 (B) for sizing considerations.