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.
Morton County, North Dakota. Morton County is a county located in the U.S. state of North Dakota. As of the 2010 census, the population was 27,471, making it the seventh-most populous county in North Dakota. Its county seat is Mandan. The county was originally created in 1873 and later organized in 1878. Morton County is included in the Bismarck, ND, Metropolitan Statistical Area