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?
Hi Wally, wouldn’t those types of equipment need local surge protection to protect them? I was under the impression that a surge protector covering the whole installation protects only the installation itself, such as electronic RCBOs etc.
The point of a type 2 SPD at the origin or DB is to reduce a 4kV transient in the installation down to a 1.5kV spike. The individual bits of electronic equipment like LEDs are then supposed to be able to cope with a 1.5kV spike - or if not, then a type 3 SPD should be installed next to them.
Hi Wally, wouldn’t those types of equipment need local surge protection to protect them? I was under the impression that a surge protector covering the whole installation protects only the installation itself, such as electronic RCBOs etc.
The point of a type 2 SPD at the origin or DB is to reduce a 4kV transient in the installation down to a 1.5kV spike. The individual bits of electronic equipment like LEDs are then supposed to be able to cope with a 1.5kV spike - or if not, then a type 3 SPD should be installed next to them.
