If overvoltages (short-duration rises of voltage) can occur in an installation, the design and dimensions of the electrical insulation are also determined by the magnitude of possible over-voltages and by the short-term electrical strength.
Ray, North Dakota. Ray is a city in Williams County, North Dakota, United States. The population was 592 at the 2010 census.
Mission is a city in Todd County, South Dakota, United States, and the Rosebud Indian Reservation. The population was 1,182 at the 2010 census. Mission is home of the Sinte Gleska University. It is the largest incorporated community in the county, but is smaller than the unincorporated community of Rosebud, which is the capital of the Rosebud Sioux Tribe.