Scope
This standard specifies the types and basic parameters, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of mining explosion-proof lighting signal comprehensive protection devices This standard is applicable to mining explosion-proof lighting signal comprehensive protection devices (hereinafter referred to as devices) The following documents 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 2423.4-1993 Basic Environmental Testing Procedures for Electrical and Electronic Products - Test Db: Alternating Humidity Heat Test Method
GB 3836.1-2000 Electrical Equipment for Explosive Gas Atmospheres - Part 1: General Requirements
GB 3836.2-2000 Electrical Equipment for Explosive Gas Atmospheres - Part 2: Flameproof "d"
GB 3836.3-2000 Electrical Equipment for Explosive Gas Atmospheres - Part 3: Increased Safety "e"
GB 14048.1-2006 Low Voltage Switchgear and Control Equipment Part 1: General
GB 14048.4-2003 Low Voltage Switchgear and Control Equipment, Electromechanical Contactors and Motor Starters
JB/T 501-2006 Test Guidelines for Power Transformers
MT/T 154.2-1996 Coal Mine Electrical Equipment Product Model Selection and Management Methods
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