tailieunhanh - GENERAL ELECTRIC GENERATING PLANTS Part 10

Tham khảo tài liệu 'general electric generating plants part 10', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | MIL-HDBK-1003 11 Platforms and Ladders. Provide platforms with ladders at alllocations requiring access for operation maintenance and cleaning for systems that are more than 4 feet meters above the ground floor. Connect long platforms to two means of egress or ladders. Ladders. Systems and access doors need only ladders for inspection. Platforms. Toe guards and railings shall be provided on platforms. Cranes and Hoists. See NAVFAC Weight-Handling Equipment and Service Craft for types and design criteria and also Section 5. Typhoon and Seismic Considerations. Interior and exterior mechanical equipment and systems should be anchored braced or guyed as required to withstand the wind loads pressures and seismic zone lateral accelerations specified for design of structures. Seismic design shall comply with criteria and requirements indicated in NAVFAC P-355 Seismic Design for Buildings. Piping and Raceway Systems. All systems should be designed to permit freedom of movement of the pipes or raceways caused by expansion and contraction but shall contain their lateral movement due to seismic occurrences. Penetration through building walls and floors should be made through sleeves and with swing joints or other means of permitting independent pipe or raceway movements. All piping or raceways critical to the operation of the plant should be steel or other structurally strong materials if possible in lieu of brittle materials such as plastic or cast iron. Materials containing asbestos shall not be used. Equipment. All mechanical and electrical equipment and tanks should be securely anchored to their foundations. Supports for equipment should be steel in lieu of cast iron where practicable. Controls. Control systems should be designed so that loss of the control media air hydraulic or electric will leave the control in a fail-safe position capable of being operated manually. Heating Ventilating and Air

crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.