This standard specifies the terminology, classification and identification, technical requirements, test methods, inspection rules, information identification, packaging, transportation and storage, installation and climbing, and use inspection of tower cranes (hereinafter referred to as tower cranes). This standard applies to tower cranes defined in GB/T 6974.3. This standard does not apply to mobile cranes equipped with tower lifting gear.
GB/T 5031-2008 Referenced Document
GB 50256 Code for construction and acceptance of electric device of crane electrical equipment installation engineering*, 2014-12-02 Update
GB/T 4728.2 Graphical symbols for electrical diagrams—Part 2:Symbol elements,qualifying symbols and other symbols having general application*, 2018-07-13 Update
GB/T 4728.3 Graphical symbols for electrical diagrams.Part 3:Conductors and connecting devices*, 2018-07-13 Update
GB/T 4728.5 Graphical symbols for electrical diagrams—Part 5:Semiconductors and electron tubes*, 2018-07-13 Update
GB/T 4728.6 Graphical symbols for electrical diagrams—Part 6: Production and conversion of electrical energy*, 2022-10-14 Update
GB/T 4728.7 Graphical symbols for electrical diagrams—Part 7:Switchgear, controlgear and protective devices*, 2022-10-14 Update
GB/T 4728.8 Graphical symbols for electrical diagrams—Part 8:Measuring instruments, lamps and signalling devices*, 2022-10-14 Update
GB/T 4728.9 Graphical symbols for electrical diagrams—Part 9: Telecommunications :Switching and peripheral equipment*, 2022-10-14 Update
GB/T 5117 Covered electrodes for manual metal arc welding of non-alloy and fine grain steels*, 2012-11-05 Update
GB/T 5118 Covered electrodes for manual metal arc welding of creep-resisting steels*, 2012-11-05 Update
GB/T 5293 Solid wire electrodes, tubular cored electrodes and electrode/flux combinations for submerged arc welding of non alloy and fine grain steels*, 2018-03-15 Update
GB/T 5972 Crane wire rope care, maintenance, inspection and scrapping*, 2023-05-23 Update