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This Standards Publication covers stabilized constant-potential-type filtered or unfiltered battery chargers which are designed to supply direct-current power from an alternating-current source to charge a float-type battery and simultaneously power the connected telecommunication system load. These battery chargers provide transformer isolation of the direct-current output from the alternate-current input and are designed for stationary mounting and continuous operation.
| Author | NEMA |
|---|---|
| Editor | NEMA |
| Document type | Standard |
| Format | File |
| Confirmation date | 2003-01-01 |
| ICS | 29.200 : Rectifiers. Converters. Stabilized power supply |
| Number of pages | 50 |
| Replace | NEMA PE 7 (1996) |
| Year | 1990 |
| Document history | NEMA PE 7 (1997) |
| Country | USA |
| Keyword | NEMA 7;7 |