Meter Shop. A utility shall maintain its own meter shop or use an outside meter shop, including one operated by a meter manufacturer, for testing, inspecting, or repairing a meter. A meter shop used by a utility for testing, inspecting, or repairing meters shall be approved by the Commission and be open for inspection upon request by an authorized representative of the Commission during normal business hours. Available Voltage. Each meter shop shall have a 3-phase voltage supply, one phase of which shall be variable from 0 volts to not less than 270 volts. Test Table. Each meter shop shall have a test table, test bench, or other facility which will serve as a mounting for the meter test equipment and for the meter or meters under test.