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This part of the scope DLT848 specifies the product classification, technical requirements, test methods, inspection rules and markings, packaging, transportation, and storage of the impulse voltage generator device (hereinafter referred to as the device). This section is applicable to the manufacturing and maintenance of impulse voltage generator devices with a rated voltage of 300kV-4700kV and a rated energy of 5kJ~480kJ. 2 Normative References: The clauses in the following documents are referred to in this part of DLT848 and become the clauses of this part. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions do not apply to certain parts. However, parties to agreements based on this section are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this section. GB/T 16927.1 High Voltage Test Techniques. Part 1: General Test Requirements EQV IEC 60060-1 1989GB/T 16927.2 High Voltage Test Techniques. Part 2: Measurement System EQV IEC 60060-2: 1994GB/16896.1 Digital Recorders for High Voltage Impulse Testing Part 1: Requirements for Digital Recorders EQV IEC 61083-1: 1991JB/T 9641 Test Transformers 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 problems100% inspection 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
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