1.1 This standard establishes performance requirements of surge suppressors for use on shipboard ac power circuits.

1.2 Surge suppressor shall be a protective device for limiting voltage transients on equipment by discharging, dissipating internally, bypassing surge current, or a combination thereof; and which prevents continued flow of follow current to ground and is capable of repeating these functions.

1.3 Surge suppressors covered by this specification may consist of a single circuit element, or may be a hybrid device employing several suppression devices.