T his s tandard is applic able to all tr ansform ers used f or power, lighting and static convertors and where appropr iate to s tar ting tr ansf orm ers, s tatic balanc ers, saturable reac tors and trans duc tors for us e in ships, inc luding s ingle-phase tr ansform ers rated at less than 1 k VA, and three- phas e tr ansf orm ers rated at less than 5 k VA, unless s pec ial r equirem ents are spec if ied.