8.4.1 When the bearing beam of the supporting frame of hydrauliccylinder is simply supported, structural deflection shall be calculated,the loads for calculation shall be conformed to 4.9.3, and the positionand direction of action shall be the most unfavo...[继续阅读]

    8.5.1 The arrangement of reinforced ribs is shown in Figure 8.5-1,and the arrangement of reinforced ribs in the web of composite beamshall conform to the following provisions.Figure 8.5-1 Arrangement of reinforced ribs(1) When h0/tw≤80 , for the beam with...[继续阅读]

    9.1.1 Hydraulic hoists generally use AC power supply, and therated voltage of power supply should be 380 V.9.1.2 Under normal operating conditions, the voltage fluctuation ofpower supply system at the feeder access of the hoist shall not exceed± 10% of th...[继续阅读]

    9.2.1 Hydraulic hoist shall be provided with correspondingelectrical control system according to various operating conditionsand control functions designed as per the principle of hydraulicsystem.9.2.2 Local electrical control system should be controlled ...[继续阅读]

    9.3.1 Hydraulic hoist room, electrical equipment room, walkways,ladders, etc. shall be provided with proper lighting, and illuminationshall be in conformity with relevant provisions. The design and layoutof work lighting shall not affect the operator eyes...[继续阅读]

    9.4.1 For a hydraulic hoist, all the electrical equipment, normaluncharged metal shells, metal pipes, metal cable sheath, and thehydraulic cylinder supporting frame shall be reliably grounded. Thecross section of grounding wire shall be checked for dynami...[继续阅读]