How to do the test report? Why do you need to do product inspection? Third-party testing institutions provide product testing services in various industries, and there are many cooperative laboratories across the country, mainly serving companies, enterprises, individual businesses, universities and scientific research.
Report qualification: CNAS, CMA, CAL, etc.
Testing costs: Quotation sample size according to customer needs and experimental
complexity: Choose to send samples or come to the door according to the sample size
Scope
This part of GB/T 26216 specifies the normal and special usage conditions, rated values, design and structure, testing, etc. of electronic DC current measuring devices for DC transmission of voltage levels up to and including 1100 kV This section is applicable to electronic DC current measurement devices installed in DC transmission systems with voltage levels of 1100 kV and below. The typical layout positions are DC pole buses, double twelve pulse converter valve group midpoint (if applicable) buses, neutral buses, grounding electrode leads, flexible DC transmission system charging circuits, and bridge arm circuits
Normative references
The following documents are essential for the application of this document.
. For dated references, only the dated version applies to this document. For all referenced documents without H period, the latest version (including all modification orders) applies to this document GB/T 311.1-2012 Insulation Coordination Part 1: Definitions Principles and RulesGB/T 2423.2 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test B: High Temperature
GB/T 2423.3 Environmental Testing - Part 2: Test Methods - Test Cabs: Constant Damp Heat Test
GB/T 2424.25 Environmental Testing for Electrical and Electronic Products - Part 3: Test Guidelines - Seismic Test Methods
GB/T 2900.50 Electrical Terminology - General Terminology for Power Generation, Transmission, and Distribution
GB/T 2900.57 Electrical Terminology - Power Generation, Transmission, and Distribution
Electrical OperationGB/T2900.95 Electrotechnical Terminology - Transformers, Voltage Regulators, and Reactors
GB/T 7354 Commercial Voltage Testing Techniques - Partial Discharge Measurement
GB/T 11022-2011 Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards
GB/T 16927.1 High Voltage Testing Techniques - Part 1: General Definitions and Test Requirements
GB/T 20840.8-2007 Transformers - Part 8: Electronic Current Transformers
GB/T 20840.9-2017 Transformers Part 9: Digital Interface of Transformer
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 Chinatesting process
,telephone communication, confirm the demand;
2. Recommend the plan and confirm the quotation;
3. Mailing samples and arranging testing;
4. Progress tracking and result feedback;
5. Issue reports and after-sales service;
6. If it needs to be expedited, priority processing;