L48A1 Mast Section General requirements for tower lifting inspection and assessment

29-09-2019

Tower lifting inspection and assessment requirements
Structural facilities
1 The deformation and rust of the main structural parts shall be within the scope permitted by the specification.
The platform, walkway, ladder and guardrail shall be set up in accordance with the specifications.
3 The fastening and connection of high-strength bolts, pins and fasteners shall conform to the specifications, and high-strength bolts shall be fastened with torque wrenches or special tools.
Electrical safety

Track laying shall conform to product specifications and specifications.

L48A1 Mast Section

1 Tower hoist shall be supplied with TN-S connection zero protection system.
The safety distance and protective measures between the tower crane and the overhead line should meet the requirements of the code.
The tower hoist shall be equipped with a lightning proof grounding device and shall meet the requirements of the specification.
The use and fixation of cables shall conform to the specifications.
attachment
1 When the height of the tower crane exceeds the product specification, the attachment device shall be installed. The attachment device shall be installed in accordance with the product specification and specifications.
Design calculation and approval shall be performed when the horizontal distance of the attachment device can not meet the requirements of the product specification.
3 The load structure of the building for installing the inner climbing tower crane should be calculated.

Track laying shall conform to product specifications and specifications.

L48A1 Mast Section

4 The vertical degree of the tower before and after attachment shall meet the requirements of the specification.
Foundation and orbit
1 The tower lifting foundation shall be designed, tested and inspected according to the product specifications and relevant regulations.
2 Drainage measures shall be provided on the basis.
The laying of the base box or pillow shall conform to the specifications and specifications of the product.
Track laying shall conform to product specifications and specifications.

L48A1 Mast Section

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