These requirements cover: a)Power supplies for use with burglar-alarm systems installed in accordance with the Standard for Installation and Classification of Burglar and Holdup Alarm Systems, UL 681; and b)Power supplies used to provide electrical power and standby power for burglar-alarm equipment constructed in accordance with the following: 1)The Standard for Police Station Connected Burglar Alarm Units and Systems, UL 365; 2)The Standard for Local Burglar-Alarm Units and Systems, UL 609; 3)The Standard for Central-Station Alarm Services, UL 827; 4)The Standard for Holdup Alarm Units and Systems, UL 636; 5)The Standard for Intrusion-Detection Units, UL 639; 6)The Standard for Household Burglar-Alarm System Units, UL 1023; 7)The Standard for Antitheft Alarms and Devices, UL 1037; 8)The Standard for Proprietary Burglar Alarm Units and Systems, UL 1076; 9)The Standard for Central-Station Burglar-Alarm Units, UL 1610; 10)The Standard for Digital Alarm Communicator System Units, UL 1635.