This standard specifies the terms and definitions, markings, packaging, environmental conditions for use, technical requirements, and verification of wet and hot zone type electronic control equipment (hereinafter referred to as equipment). This standard applies to electronic control equipment with a rated voltage of AC not exceeding 1000V or DC not exceeding 1500V, operating in humid tropical areas. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 2423.4-2008 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods, Test Db: Alternating Damp Heat (12h to 12h Cycle) GB/T 2423.16-2008 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test J and Guidelines: Long Mold GB/T 2423.17 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test Ka: Salt Spray GB/T 3047.1 Panel with a Height Scale of 20 mm Basic dimensions series of racks and cabinets GB/T 3797-2016 Electrical control equipment GB/T 4025 Basic and safety rules for human-machine interface marking and identification Code for indicators and operating devices GB/T 4026-2010 Basic and safety rules for human-machine interface marking and identification, identification of equipment terminals and conductor terminals GB/T 4205 Basic and safety rules for human-machine interface marking and identification Operating rules GB/T 4208 Degrees of protection (IP code) of enclosures GB/T 4768 Mold proof Packaging GB/T 4797.1 Natural Environmental Conditions for Electrical and Electronic Products Temperature and Humidity GB/T 4879 Rust proof Packaging GB/T 5048 Moisture proof Packaging GB/T 7251.1-2013 Low Voltage Switchgear and Control Equipment Part 1: General
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