This specification specifies the general requirements for bimetallic sheet driven thermostatic relays (hereinafter referred to as relays). This specification applies to thermostatic relays for electrical and electronic equipment that require temperature protection, overheating detection, or precise temperature control in AC and DC circuits. 2. The relevant clauses in the following documents become the clauses of this specification through reference. Any subsequent amendment (excluding corrected content) or revised version of a referenced document with an 8th issue or revision does not apply to this specification. However, parties advocating the use of this specification should explore the possibility of using its latest version. For referenced documents without date or revision, the latest version applies to this specification. GB/T 192 Basic Profile of General Purpose Threads GB/T 193 Diameter and Pitch Series of General Purpose Threads GB/T196 Basic Dimensions of General Purpose Threads GB/T 197 Tolerances for General Purpose Threads GB/T4728.7 Graphical Symbols for Electrical Diagrams Part 7: Switches Control and Protection Devices GB/T 5023.3 Polyfluoroethylene Insulated Cables with Rated Voltages up to and including 450/750V - Part 3: Unsheathed Cables for Fixed Wiring GJB65B-1999 General Specification for Electromagnetic Relays with Reliability Indicators GJB 360B-2009 Test Methods for Electronic and Electrical Components GJB546 Quality Assurance Outline for Electronic Components GJB 1437-1992 Quality Assurance Requirements for Electronic Component Leads GJB2712 Measurement Equipment GJB 3014 Statistical Confirmation System for Electronic Components Process Control System 3 Requirement 3.1 General: Relays shall comply with all requirements specified in this specification and corresponding detailed specifications. In case of any inconsistency between the requirements of this specification and the relevant detailed specifications, the relevant detailed specifications shall prevail. The manufacturer shall establish and maintain a quality assurance outline plan and statistical process control (SPC) system in accordance with the provisions of GJB 546 and GJB 3014. 3.2 Materials 3.2.1 General rules: The materials used should enable the relay to meet the performance requirements specified in this specification. 3.2.2 Unless otherwise specified, when using molded plastic, it should be ensured that the relay can meet the performance requirements specified in this specification. Plastics should comply with the corresponding plastic standards. 3.2.3 Metals 3.2.3.1 General rules: All metal components exposed to the environment should be corrosion-resistant materials and can also be electroplated to meet corrosion resistance requirements
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