"Electricity, gas and thermal power distribution" . "Areas used for electricity, gas and thermal power distribution, excluding pipelines. \nThis section includes the operation of electric and gas utilities, which generate and control electric power or gas." . "U319" . . . . . "Electricity, gas and thermal power distribution" . . "Areas used for electricity, gas and thermal power distribution, excluding pipelines. \nThis section includes the operation of electric and gas utilities, which generate and control electric power or gas." .