I have just had it confirmed from the manufacturer that the EVSE we are installing does not need overvoltage protection. The installation does need such protection on the basis of the risk assessment method. If I elect to install a SPD, for what reason would I be doing so?
Sorry Wally, the question was really rhetorical in nature, I was trying to make a point. In my attempt to be succinct, I lost the necessary clarity. Best if the EVSE circuit is considered as the only installation in the building. No LPS. Not TT. However, the CRL is just below 1000 so SPDs are required. I assume BS7671 requires SPDs in order to protect electrical equipment. The only electrical equipment in this installation is the charge point. The manufacturer of the charge point has declared that SPD is not required. So do I spend client’s money on a SPD just to blindly and unnecessarily comply with BS7671? That was my point!
It looks like GK has torpedoed that point, however. I didn’t consider the car being plugged in! Doh!
Sorry Wally, the question was really rhetorical in nature, I was trying to make a point. In my attempt to be succinct, I lost the necessary clarity. Best if the EVSE circuit is considered as the only installation in the building. No LPS. Not TT. However, the CRL is just below 1000 so SPDs are required. I assume BS7671 requires SPDs in order to protect electrical equipment. The only electrical equipment in this installation is the charge point. The manufacturer of the charge point has declared that SPD is not required. So do I spend client’s money on a SPD just to blindly and unnecessarily comply with BS7671? That was my point!
It looks like GK has torpedoed that point, however. I didn’t consider the car being plugged in! Doh!
