GB/T 5019.7-2009
ActiveInsulating materials based on mica - Part 7: Glass-backed and film-backed mica paper with an epoxy resin binder for vacuum pressure impregnation(VPI)
以云母为基的绝缘材料 第7部分:真空压力浸渍(VPI)用玻璃布及薄膜补强环氧树脂粘合云母带
Application Summary AI generated
This standard specifies requirements for mica paper tapes reinforced with glass fabric or film and bonded with epoxy resin, designed specifically for vacuum pressure impregnation (VPI) processes. It is applied in the electrical industry for insulating high-voltage rotating machinery, such as generators and large motors, where the tape is wrapped around coils and then impregnated with resin under vacuum and pressure to ensure void-free insulation. The standard ensures consistent thickness, tensile strength, and resin compatibility for reliable performance in demanding power generation and industrial equipment.
Related Standards
GB/T 7113.4-2011
Flexible insulating sleeving - Part 4: Glass textile sleeving with acrylic based coating
GB/T 19264.1-2011
Pressboard and presspaper for electrical purposes--Part 1: Definitions and general requirements
GB/T 7113.6-2011
Flexible insulating sleeving-- Part 6:Glass textile sleeving with polyurethane(PUR)based coating
GB/T 27749-2011
Test procedure for thermal endurance of insulating varnishes--Electric strength method
GB/T 7113.5-2011
Flexible insulating sleeving-- Part 5:Glass textile sleeving with silicone elastomer coating
GB/T 7113.3-2011
Flexible insulating sleeving--Part 3: Glass textile sleeving with PVC coating
GB/T 6554-2003
Resin based reactive compounds used for electrical insulation--Part 2:Methods of test--Methods for coating pourders for electrical purposes
GB/T 11026.1-2003
Electrical insulating materials--Properties of thermal endurance--Part 1:Ageing procedures andevaluation of test results
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.