S.D. Admin. R. 20:10:33:19
Each local central office, toll switching office, or tandem switching office of a local exchange company shall contain a minimum of 8 hours, plus or minus 15 percent, of battery reserve rated for peak traffic load requirements. A permanent auxiliary power unit may be utilized to meet this requirement. In central offices and toll tandem switching offices, a permanent auxiliary power unit shall be installed or a mobile power source shall be available which normally can be delivered and connected within four hours. The remote terminating electronics of a local exchange company shall be equipped with a local or remote battery plant designed for a minimum of 8 hours, plus or minus 15 percent, of battery reserve rated for peak traffic load requirements. The batteries shall be tested and reported internally on a regular basis, not to exceed once a year.
S.D. Admin. R. 20:10:33:19
General Authority: SDCL 49-31-77, 49-31-85.
Law Implemented: SDCL 49-31-3, 49-31-77, 49-31-85.