Current through Register Vol. XLI, No. 24, June 14, 2024
Section 56-23-9 - Transfer of Diesel Fuel9.1. Diesel fuel shall be transferred as provided in this section.9.2. When diesel fuel is transferred by means of a pump and a hose equipped with a nozzle containing a self-closing valve, a powered pump may be used only if:9.2.1. The hose is equipped with a nozzle containing a self-closing valve without a latch-open device; and9.2.2. The pump is equipped with an accessible emergency shutoff switch.9.3. Diesel fuel shall not be transferred using compressed gas.9.4. Diesel fuel shall not be transferred to the fuel tank of diesel-powered equipment while the equipment's engine is running.9.5. Diesel fuel piping systems shall be designed and operated as dry systems.9.6. All piping, valves and fittings shall meet the following:9.6.1. Be capable of withstanding working pressures and stresses.9.6.2. Be capable of withstanding four times the static pressures.9.6.3. Be compatible with diesel fuel.9.6.4. Be maintained in a manner that prevents leakage.9.7. Vertical pipelines shall have manual shutoff valves installed at the surface filling point and at the underground discharge point.9.8. Unburied diesel fuel pipelines shall not exceed three hundred feet in length and shall have shutoff valves located at each end of the unburied pipeline.9.9. Horizontal pipelines shall not be used to distribute fuel throughout the mine.9.10. Diesel fuel piping systems shall be used only to transport fuel from the surface directly to a single underground diesel fuel transfer point.9.11. When boreholes are used, the diesel fuel piping system shall not be located in a borehole with electric power cables.9.12. Diesel fuel pipelines located in any shaft shall be included as part of the required examination of the shaft.9.13. Diesel fuel piping systems located in entries shall not be located on the same side of the entry as electric cables or power lines.9.14. Diesel fuel pipelines shall not be located in any trolley-haulage entry, except that they may cross the entry perpendicular if buried or otherwise protected in steel conduit or an equivalent from damage and sealed.9.15. Diesel fuel piping systems shall be protected to prevent physical damage.