2011•Guangdong Electric PowerRequires access

Construction Technology of Steel Tube Tower Assembled by Double Horizontal Arm Grounding Hold-Pole in Large Crossing Project of UHV Transmission Lines

Chen Rui-feng

Abstract

The river-crossing tower in large crossing project of Phase-Ⅱaccess system in 500 kV Taishan power plant is 202.5 meters and the topographic is special,which imposes great difficulties to construction of steel tube tower assembly.As for assembly of steel tube transmission towers in this condition,the double horizontal arm grounding hold-pole is adopted for tower assembly.The paper presents characteristics,installation procedure,calculation of flexible attachment,hoisting construction and removal steps.The construction experience indicates that the technology can be employed in assembly of eagle steel frame and steel tube tower in large crossing project of UHV transmission lines.

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Key concepts: Tower, Ground, Engineering, Tube (container), Electric power transmission, Power transmission, Transmission tower, Transmission (telecommunications)