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.
Cass County, North Dakota. Cass County is a county located in the U.S. state of North Dakota. As of the 2010 census, the population was 149,778, and was estimated to be 171,512 in 2015. Cass County is the most populous county in North Dakota, accounting for nearly 23% of the state's population. Its county seat is Fargo, the most populous city in the state. The county was organized on October 27, 1873.