What advantage does the 12kv gap arrestor have concerning voltage fluctuations?

The advantage of the 12kV gap arrestor concerning voltage fluctuations is that it has a higher mcov, or maximum continuous operating voltage. This means that the arrestor is capable of withstanding and effectively managing higher voltage levels without failing. A higher mcov allows the gap arrestor to operate reliably in environments where voltage spikes or fluctuations may occur, ensuring that it can protect equipment from damage caused by overvoltage conditions. This is particularly important in electrical systems where transient surges can lead to significant issues, making a higher mcov a desirable feature for maintaining system stability and safety.