This standard specifies the product model, basic parameters, technical requirements, testing methods, inspection regulations, marking, labeling, packaging, and storage requirements of the winch used in power transmission and transformation engineering (hereinafter referred to as the winch). This standard is applicable to the design, manufacturing, inspection, acceptance, and use of stranding equipment for overhead transmission lines, power cable lines, and communication lines, as well as for the assembly and installation of poles and towers, traction and stringing, tightening, and cable laying. Other forms and uses of grinding can be referred to for implementation. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 191 Packaging, Storage and Transportation Graphical Symbols GB/T 1184 Shape and Position Tolerances without Individual Tolerance Values GB/T1804 General Tolerances - Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications GB/T 5117 Non alloy Steel and Fine Grain Steel Electrodes GB/T5118 Hot Strength Steel Electrodes GB/T 5972 Cranes - Care, Maintenance, Installation of Steel Wire Ropes Inspection and Scrapping of GB 8918 Steel Wire Ropes for Important Purposes GB/T 10095.1 Cylindrical Gears, System of Accuracy, Part 1: Definition and Allowable Values of Tooth Surface Deviation on the Same Side of Gear Teeth GB/T 10095.2 Cylindrical Gears, System of Accuracy, Part 2: Definition and Allowable Values of Radial Comprehensive Deviation and Radial Runout GB/T 13306 Standard GB/Z19414 Industrial Closed Gear Transmission Devices GB/T 20118 General Purpose Steel Wire Ropes DL/T 318 Method for Model Selection of Construction Machinery Products in Power Transmission and Transformation Engineering DL/T 372 General technical specifications for traction machines used for tension stringing of transmission lines DL/T 875 Basic requirements for design and testing of construction equipment for transmission lines DL5009.2 Safety work regulations for power construction Part 2: Power lines
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China