Detail of GB/T 33504-2017

Introduction of GB/T 33504-2017

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by China Machinery Industry Federation. This standard is under the jurisdiction of SAC/TC 335 National Technical Committee on Elevating Work Platforms of Standardization Administration of China. Mobile suspended work platform 1 Scope This standard specifies the terms and definitions, classification and principal parameters, technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage for mobile suspended work platforms. This standard is applicable to mobile suspended work platforms (hereinafter referred to as MSWP) that have the ability to travel and where suspended platforms are used to transport workers to designated locations. This standard is not applicable to the following: ——building maintenance units; ——suspended access equipment for high-altitude work; ——builders hoists for persons and materials with vertically guided suspended platforms; ——mobile cranes. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB 1589 Limits of dimensions, axle load and masses for road vehicles GB/T 3766 Hydraulic fluid power - General rules relating to systems GB/T 3811-2008 Design rules for cranes GB 4208 Degrees of protection provided by enclosure (IP code) GB 5226.1 Electrical safety of machinery - Electrical equipment of machines - Part 1: General requirements GB 5226.2 Safety of machinery - Electrical equipment of machines - Part 32: Requirements for hoisting machines GB 6067.1-2010 Safety rules for lifting appliances - Part 1: General GB 7588-2003 Safety rules for the construction and installation of electric lifts GB/T 7935 Hydraulic fluid power - General requirements for hydraulic components GB/T 9969 General principles for preparation of instructions for use of industrial products GB/T 11918 (all parts) Plugs, socket-outlets and couplers for industrial purposes GB/T 13306 Plates GB 16754 Safety of machinery - Emergency stop - Principles for design GB/T 16855.1 Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design GB/T 16855.2 Safety of machinery - Safety-related parts of control systems - Part 2: Validation GB 19154 Building maintenance unit GB 20062 Mobile crawler crane - Limits and measurement methods for operating noise GB 23821-2009 Safety of machinery - Safety distances to prevent hazard zones being reached by upper and lower limbs GB 26557-2011 Builders hoists for persons and materials with vertically guided cages GB/T 26560-2011 Powered industrial trucks - Safety signs and hazard pictorials - General principles JB/T 6042 Specific purpose chassis of truck cranes 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB 19154 and the following apply. 3.1 mobile suspended work platform lifting device that has the ability to travel, derricking, slewing, and lifting a suspended platform through a boom to transport workers to a designated location Note: the work platform in this standard is the suspended platform. 3.2 operator designated person who can safely operate the mobile suspended work platforms and holds operating qualification certificate(s) after receiving the relevant qualification training and necessary guidance for high-altitude operations and mobile suspended work platforms 3.3 worker person who can safely operate the mobile suspended work platform and holds the operating qualification certificate, transported by the suspended platform to a working location   3.4 suspended platform device with a base plate, enclosure walls, a door and a roof, used for carrying workers and portable tools with suspension wire ropes 3.5 working device all mechanisms except for the suspended platform, including the lifting mechanism, boom mechanism, slewing mechanism, etc. above the slewing bearing 3.6 secondary device device used to stop the lowering of the suspended platform in an emergency (such as the fracture of a suspension wire rope or the failure of the lifting mechanism) 3.7 working height vertical distance between the highest working plane and the lowest working plane of the suspended platform base plate during operation of the mobile suspended work platform 3.8 working range horizontal distance between the slewing central axis of the working device of the mobile suspended work platform and the center of the suspended platform 3.9 rated load maximum working load allowed by the design of mobile suspended work platform when its boom is at the maximum working range 3.10 total suspended load static load applied to the suspension point of the working device, including the rated load capacity of the suspended platform and the dead weight of the suspended platform, accessory equipment, wire ropes and cables 4 Classification and principal parameters 4.1 Classification According to the main boom structure, the mobile suspended work platforms are classified into fixed-boom-type ones and telescopic-boom-type ones. See Figures 1 and 2. Keys: 1——chassis; 4——electrical control system; 7——boom; 2——slewing platform; 5——suspended platform; 8——derricking mechanism; 3—hydraulic system; 6—leveling device; 9—lifting mechanism. Figure 1 Fixed-boom-type mobile suspended work platform Keys: 1——chassis; 4——electrical control system; 7——boom; 2——slewing platform; 5——suspended platform; 8——derricking mechanism; 3—hydraulic system; 6—leveling device; 9—lifting mechanism. Figure 2 Telescopic-boom-type mobile suspended work platform 4.2 Principal parameters The principal parameters of mobile suspended work platform are the rated load capacity. See Table 1 for the principal parameter series   Table 1 Principal parameter series In: kg Name Principal parameter series Rated load capacity 300, 400, 500, 630, 800, 1,000, 1,200 and 1,400 5 Technical requirements 5.1 Complete machine 5.1.1 Basic requirements 5.1.1.1 Procured parts and cooperation parts shall be compete with certificates of conformity before being used; self-made parts and components shall be inspected before being used in assembly. 5.1.1.2 The raw materials shall be complete with certificates of conformity and meet the requirements of the product drawings, otherwise they shall be inspected and verified according to relevant standards before being used. 5.1.1.3 The installation of all parts and components shall be correct and complete, and the connections shall be firm and reliable. 5.1.1.4 The welding quality shall meet the requirements of the product drawings, and the important parts shall be subjected to flaw detection. 5.1.1.5 The structural members shall be effectively treated with corrosion and rust protection. 5.1.1.6 The scrapping of structural members shall meet the requirements of GB 6067.1-2010, 3.9. 5.1.1.7 The mobile suspended work platforms shall be able to work normally under the following conditions: a) ambient temperature: -10℃~+55℃; b) ambient relative humidity: ≤90% (25℃) c) the gust velocity at the work place: ≤8.3m/s (equivalent to Force 5); d) the power supply voltage deviates from the rated value by ±10%; e) the supporting ground is solid and flat.

Contents of GB/T 33504-2017

Foreword II 1 Scope 2 Normative references 3 Terms and definitions 4 Classification and principal parameters 5 Technical requirements 6 Test methods 7 Inspection rules 8 Marking, packaging, transportation and storage Annex A (Informative) Record tables