
1. Scope: This standard specifies the technical conditions for overhead distribution line fittings, which are applicable to fittings for bare and insulated conductors of overhead distribution lines with a rated voltage of 35kV and below. 2. The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When the standard is published, all versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. B 2314-1997 General Technical Conditions for Electric Power Hardware BT 2317.1-2000 Mechanical Performance Test Methods for Electric Power Hardware B/T 2317.3-2000 Thermal Cycle Test Methods for Electric Power Hardware BT 2317.4-2000 Acceptance Rules for Electric Power Hardware Marking and Packaging GB/T 5075-1985 Terminology of Electric Power Hardware B12527-1990 Overhead Insulated Cables with Rated Voltages of 1kV and Below GB 14049-1993 Overhead Insulated Cables with Rated Voltages of 10kV and 35kV DLT 4641-1992 Overhead Insulated Wire Hardware and Insulating Components with Rated Voltages of 1kV and Below (1) General regulations DL T 683-1999 Naming method for power fittings product models JB T 8177-1995 General technical conditions for hot-dip galvanized coatings on metal accessories of insulators SDJ/T 226-1987 Hydraulic construction process specification for overhead transmission line conductors and lightning conductors
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