This part of the scope GB/T 17215 is only applicable to newly manufactured electromechanical active energy meters (hereinafter referred to as instruments) used for measuring AC active energy in 50 Hz or 60 Hz networks, with levels 0.5, 1, and 2, and their type tests. This section applies to indoor and outdoor electromechanical energy meters composed of measuring elements and one or more registers installed in the same case, as well as to one or more working indicators and one or more test outputs. If the instrument has a measuring element that measures more than one type of electrical energy (multi energy instrument), or when other functional elements such as maximum demand indicator, electronic rate register, time switch, ripple control receiver, data communication interface, etc. are also enclosed in the instrument case, then the standards related to these elements must also be applied. This standard only applies to the measurement part. This section does not apply to: a) instruments with terminal voltage exceeding 600 V (multiphase instruments have line to line voltage); b) Portable instrument; c) Data interface for instrument register. Acceptance inspection shall be carried out in accordance with the basic guidelines given in GB/T 3925-1983 "Acceptance Methods for Level 2.0 Alternating Current Meters" (eqv IEC 60514; 1975). The reliability is in accordance with the content of the series of documents IEC 62059 "AC measurement equipment, reliability"
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