tailieunhanh - Qualification Standard Reference Guide SEPTEMBER 2008

On Pelton governors, the gate limit is provided by a separate gate limit valve. When the gate limit setting is above the gate position, the gate limit valve allows unobstructed flow between the pilot valve and the main valve. When the gate position matches the gate limit setting, the gate limit valves blocks all oil flow from the pilot valve. If the gate limit is moved below the gate position, the gate limit valve over-rides the pilot valve and routes oil to close the gates. With any governor, raising the gate limit setting will not have any effect on the gate position unless. | National Nuclear Security Administration Mechanical Systems Qualification Standard Reference Guide September 2008 This page is intentionally blank. Table of Contents LIST OF LIST OF SCOPE. 1 TECHNICAL General 1. Mechanical systems personnel shall demonstrate a working level knowledge of steadystate heat 2. Mechanical systems personnel shall demonstrate a working level knowledge of 3. Mechanical systems personnel shall demonstrate a working level knowledge of fluid 4. Mechanical systems personnel shall demonstrate a working level knowledge of the concepts theories and principles of basic material 5. Mechanical systems personnel shall demonstrate a working level knowledge concerning the selection of appropriate components and materials in support of a mechanical system design or 6. Mechanical systems personnel shall demonstrate a working level knowledge of mechanical diagrams including . 41 7. Mechanical systems personnel shall demonstrate a working level knowledge of installed mechanical 8. Mechanical systems personnel shall demonstrate a working level knowledge of a typical diesel generator including support 9. Mechanical systems personnel shall demonstrate a working level knowledge of the construction and operation of heat 10. Mechanical systems personnel shall demonstrate a working level knowledge of the theory and operation of heating ventilation and air conditioning HVAC 11. Mechanical systems personnel shall demonstrate working level knowledge of general piping 12. Mechanical systems personnel shall demonstrate a working level knowledge of the general construction operation and theory of 13. Mechanical systems personnel shall demonstrate a working level knowledge of safety and relief 14. Mechanical systems personnel