
This part of GB1001 is applicable to porcelain or glass insulators for AC overhead power and traction lines with a nominal voltage above 1000V and a frequency not exceeding 100Hz. This section is also applicable to insulators for DC overhead power traction lines. This section is applicable to insulator string components, rigid insulators for overhead lines, and insulators of similar structures used in substations. This section does not apply to insulators that constitute electrical components or components used in electrical structures, as well as post insulators included in GB8287.1 "High Voltage Post Porcelain Insulators - Part 1: Technical Conditions". The testing of insulator strings and insulator sets (such as wet switching impulse voltage) is discussed in Part 2 of GB1001. Note: This section does not include artificial pollution and radio interference tests. The corresponding test methods for these projects are discussed in the following standards: GB/T4585.1-1994 High voltage insulators for AC systems - Pollution test methods - Salt spray method (eqv IEC60507) GB/T 4585.2-1991 Artificial pollution test methods for high-voltage insulators for AC systems - Solid layer method (idt IEC 60507) JB/T 3567-1999 Radio interference test methods for high-voltage insulators (eqv IEC 60437). The purpose of this part is to define the terms used; Specify the characteristics of insulators and the conditions for inspecting the specified values of these characteristics Specify the test method; 1. Define judgment criteria. This section does not include the requirements for the selection of insulators for special conditions. Note: Guidelines for selecting insulators under polluted conditions can be found in JB/T 5895-1991 Guidelines for the Use of Insulators in Polluted Areas (neq IEC 60815). The characteristic values of insulators are specified in the corresponding product standards. 2 Normative References: The provisions of the following documents are referred to in this part of GB1001 and become the provisions of this part. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions do not apply to this section. 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 2900 8-1995 Electrotechnical Terminology Insulators (eqv IEC 60471) GB/T 4056 High Voltage Line Suspension Insulator Connection Structures and Dimensions (eqv IEC 60120; 1984) GB/T 16927 1-1997 High voltage testing techniques - Part: General test requirements (eqv IEC 60060-1:1989) JB/T 7616-1994 Steep wave impulse withstand test for high-voltage line insulators (neq IEC 61211) JB/T 8177-1999 General technical conditions for hot-dip galvanized coatings on metal accessories of insulators JB/T 8181 Locking pins for ball and socket connections of insulator string components (eqv IEC 60372)
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