What does a higher mcov in a gap arrestor indicate?

A higher mcov (maximum continuous operating voltage) in a gap arrestor indicates that the device can tolerate higher voltage levels before failure. This capacity for higher voltage signifies that the arrestor can handle voltage fluctuations without breaking down or failing. In practical terms, it means that the installation can endure situations where voltage might exceed the regular operating levels, thus providing a more reliable safeguarding mechanism against transient surges or spikes.

An increased mcov enhances the device’s ability to perform effectively within a wider range of operational conditions, ensuring that it continues to protect the electrical circuit even under varying voltage scenarios. This quality is critical in preventing damage to sensitive equipment due to unexpected voltage surges, thereby maintaining operational continuity and safety. Thus, understanding mcov helps in selecting appropriate gap arrestors for specific applications where voltage conditions may fluctuate significantly.