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Epoxy Fiberglass Winding Tube （EPGF51/EPGF52/EPGF53 ）
Standard:IEC61212-2;2006
Regular Size: 1000mm-3000mm(support customize)
Wall thickness: ≧0.8mm
Inside Diameter:Ф10mm-Ф600mm(support customize)
Thermal rating: Class H(180℃)
Color:Green
Application:Dry type transformers,SF6 Circuit Breaker,Surge Arrester,load tap changers
Epoxy Fiberglass Filament Winding Tube is made of fiber glass yarn impregnated with insulation glue, epoxy resin and other resins by certain proportion, and then it is rolled in wet method, dried and finally consolidated by baking. Its heat resistance level is up to class H(180°C) and it also has excellent electrical and mechanical properties, chemical resistance (SF6), low dielectrical loss, no deformation or delamination. It is widely used as main insulator in dry- type transformers, load tap changers, electric reactors, lightning arrestors, SF6 inductors, etc.
High-Voltage Transmission & Distribution:
Insulating interrupter chambers for SF6 Circuit Breakers.
Operating rods for High-Voltage Disconnectors.
Internal core support tubes for Surge Arrester Housings.
Power Transformers: Lead insulation tubes and tap-changer supports for large oil-immersed or dry-type transformers.
High-Voltage Fuses: Tube bodies for expulsion fuses, designed to withstand high-temperature and high-pressure gas surges during interruption.
1.Factory: We operate a professional electrical insulation materials manufacturing facility and are ISO-certified.
2.Fully Automated Production: Our advanced automated workshop is supported by a strict and comprehensive quality management system.
3.Quality Inspection: Equipped with four major laboratories and five core product performance testing capabilities.
4.Processing Services: We provide customized processing solutions based on your requirements, ensuring high quality and on-time delivery.
5.Product Certification: Our products comply with UL, SGS, RoHS, and REACH standards. Sample testing is available upon request.
6.Ready Stock Supply: Standard products can be delivered within 7–15 days.
Our company is certified to ISO 9001, ISO 14001, and ISO 45001 management systems. Our products also comply with international certifications and reports including UL, RoHS, REACH, MSDS, CEMT, as well as factory inspection and test reports provided before shipment.
We are a professional manufacturer of Epoxy Fiberglass Winding Tube, which can be customized according to your needs
| Number | Item | Unit | Value |
| 1 | Density | G/Cm3 | 1.95-2.1 |
| 2 | Flexural Strength At Perpendicular Lamination （Under Normal） | MPa | 400 |
| 3 | Axial Compressive Strength | MPa | ≥150 |
| 4 | Breakdown Voltage At Parallel Lamination （Transformer Oil At 90℃） | Kv | ≥40 |
| 5 | Dielectric Strength At Perpendicular Lamination （Transformer Oil At 90℃, 1mm） | KV/Mm | ≥11.6 |
| 6 | Surface Voltage Resistance After Damp | Kv | ≥12 |
| 7 | Insulation Resistance After Immersion | Ω | 1.0×103 |
| 8 | Dielectric Loss Factor（50Hz） | – | ≤0.05 |
| 9 | Water Absorption | % | ≤1 |
| 10 | Partial Discharge | PC | ≤5 |
| 11 | Thermal Index | – | 180°C |
| Product specification | 3520 | 380/380A | 3640/3641 | 355 | 356 | 3652 | 364 | 360 |
| PFCP22 | PFCC21/24 | EPGC21/22 | – | – | SIGC21 | BMIGC21 | EPCF52 | |
| Min Wall Thickness（mm) | 2.0 | 3.0 | ||||||
| Max Wall Thickness（mm) | 80 | 200 | 200 | 200 | 200 | 200 | 200 | – |
| Min Inside Diameter(mm) | 10 | 10 | 6 | 6 | 6 | 10 | 10 | 30 |
| Max Inside Diameter（mm) | 1200 | 600 | ||||||
| Length（mm) | 1000 | 1000/1200 | 1000-3000 | |||||
