The inspection of insulated shoes shall be carried out in accordance with the "Preventive Testing Regulations for Live Working Tools, Devices and Equipment" DL/T 976-2005 "Foot Protection Electrical Insulated Shoes" GB12011-2009 "Safety Work Regulations for Electric Power Construction" DL5009.2-2004 "Safety Work Regulations for Electric Power Industry (Power Plants and Electrical Parts)" DL 408-1991
Inspection scope of insulated shoes:
High voltage insulated shoes, electrical insulated shoes, low voltage insulated shoes, rubber insulated shoes, etc
Types of insulated safety shoes (boots):
1. According to the upper material, they are divided into electrical insulated leather shoes, electrical insulated cloth faced rubber shoes, electrical insulated all rubber shoes, and electrical insulated all polymer material shoes.
2. According to the height of the shoe collar, it is divided into low top electrically insulated shoes, high waist electrically insulated shoes, half barrel electrically insulated shoes, and high barrel electrically insulated shoes 3. According to the test voltage, it is divided into 6kV electrical insulated leather shoes, 5kV electrical insulated cloth covered rubber shoes, 15kV electrical insulated cloth covered rubber shoes, 6kV electrical insulated full rubber shoes, 10kV electrical insulated full rubber shoes, 15kV electrical insulated full rubber shoes, 20kV electrical insulated full rubber shoes, 30kV electrical insulated full rubber shoes, etcInsulation shoe testing items:
Physical and chemical index testing: Mooney viscosity, Shore hardness, international hardness, retention rate (PRI), swelling index, etc Mechanical performance testing: tensile strength and elongation at break, dynamic stiffness, static stiffness, compression permanent deformation, constant elongation permanent deformation, compression stress relaxation, tensile stress relaxation, tear strength, bending strength, bursting strength, impact strength, shear strength, tear resistance, tensile strength, bending strength, bonding strength, adhesive strength testing, etc Thermal performance testing: glass transition temperature, ash content, horizontal combustion, vertical combustion, oxygen index, low-temperature brittleness, low-temperature rigidity, compression cold resistance coefficient, tensile cold resistance coefficient, thermal conductivity, crystallization effect, etc Electrical performance testing: resistivity, dielectric constant, tangent value of dielectric loss angle, breakdown voltage intensity, etc Reliability testing: artificial climate aging (fluorescent ultraviolet lamp, xenon lamp, carbon arc lamp), ozone resistance aging test, thermal oxygen aging test, liquid resistance test, hot air accelerated aging test, damp heat aging test, neutral salt spray test, acidic salt spray test, etc
Component analysis: Analyze the content of each component, identify unknown substances, and analyze the content of impurities generated in production
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