This part of the scope DLT848 specifies single-phase power frequency high-voltage testing devices with rated voltage levels of 1000kV and below The performance parameters, technical requirements, test items, test methods, markings, packaging, transportation, and storage conditions of the device (hereinafter referred to as the device). This section is applicable to the component configuration, design, manufacturing, and use of single-phase high-voltage testing devices of 1000kV and below. The three-phase high-voltage testing device can refer to this section. The clauses in the normative reference documents in the following documents have become the clauses of this section through the reference in this section of DLT848. 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 2681 Color of Wires in Complete Electrical Equipment GB/T 2682 Color of Indicating Lights and Pushbuttons in Complete Electrical Equipment GB 4793.1 Measurement Safety requirements for electrical equipment used in control and testing rooms - Part I: General requirements IDT IEC61010-1t199oGB/T 11023-1989 High voltage switchgear - Sulfur hexafluoride gas sealing test method GB/T 12501,1997 Classification of electrical and electronic equipment according to electrical shock protection: Part 2: Guidelines for electrical shock protection requirements GB/T 16927.2-1997 High voltage testing techniques - Part 2. Measurement System EQV rEC 60060-2:1994JB/T 5473-1991 Voltage Transformers for Instruments ocIn. comJB 8749-1998 General Technical Conditions for Voltage Regulators JBT 9641-1999 Test Transformers JG314-1994 Voltage Transformers for Measurement Chapter JG 496-1996 Power Frequency High Voltage Dividers 3 Terms and Definitions Dur848 uses the following terms and definitions in this part. 3.1 Power frequency high voltage test device is a test device composed of basic components such as voltage regulator, test transformer, measurement, control, and protection. 3.2 A device that combines a complete device voltage regulator, test transformer, control device, and protection device (excluding allowable measurement systems) into a whole. 3.3 Split device: A device that combines the control device, voltage regulator, protection device, and test transformer through external connections
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