Scope of Application
This standard specifies the general technical requirements for the design, testing, inspection, and use of construction equipment for overhead transmission lines. This standard is applicable to the construction equipment used in the construction of overhead transmission lines. 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 3323 Radiography of Metal Fusion Welding Joints GB/T 3766 General Technical Conditions for Hydraulic Systems GB/T 3811-2008 Crane Design Specification GB 5144 Safety Regulations for Tower Cranes GB 5226.1 Mechanical Electrical Safety Mechanical Electrical Equipment Part 1: General Technical Conditions GB/T 5972 Maintenance, Installation, and Installation of Steel Wire Ropes for Hoists Inspection and scrapping GB 6067.1 Safety regulations for lifting machinery Part 1: General principles GB 6095 Safety belts GB/T 6096 Safety belt test methods GB/T 7935 General technical conditions for hydraulic components GB/T9142 Concrete mixer GB/T 12167 Aluminum alloy tight wire clamp for live working GB 12348 Emission standard for industrial enterprise boundary noise GB/T 13035 Insulating ropes for live working GB/T 14665 Mechanical engineering CAD drawing rules GB 16710 Noise limits for earthmoving machinery GB 26557 Hanging cage Vertical oriented construction elevators for both people and goods GB 26859 Electric Power Safety Work Regulations GB 50017 Code for Design of Steel Structures GB 502331 Code for Construction and Acceptance of 10kV~750kV Overhead Transmission Lines GB 50429 Code for Design of Aluminum Alloy Structures DL/T 318 Method for Preparation of Construction Equipment and Product Models for Transmission and Transformation Engineering DL/T319 General Technical Conditions and Test Methods for Construction Holds of Overhead Transmission Lines DLT 371-2010 Overhead Transmission Line Payoff Block DLT 372 General technical specifications for traction machines for tension stringing of transmission lines DL/T 689 Hydraulic crimping machines for transmission and transformation engineering
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