3520 Phenolic paper-base laminated tube PFCP22A(IEC)
Electrical winding paper(3520)immersed with phenolic resin and partially curing, then baking and finished by hot rolling. Heat resistance class is E class.
Basic Info | Standards | GB/T 5132.1-2009 IEC61212-1:2006 | ||||
Chinese Name | 3520 | |||||
IEC | PFCP22 | |||||
NEMA | - | |||||
Base Material | Paper | |||||
Resin | Phenolic | |||||
Color | Brown | |||||
NO. | Properties | Unit | Index | |||
1 | Density | g/m³ | 1.0-1.1 | |||
2 | Vertical Bending Strength (at normal state) | MPa | ≥90 | |||
3 | Axial Compressive Strength | MPa | ≥60 | |||
4 | Parallel Breakdown Voltage | KV | ≥25 | |||
(90 ℃ transformer oil) | ||||||
5 | Vertical Electrical Strength (90 ℃ transformer oil) | KV/mm | ≥8 | |||
(wall thickness: 3.0mminner diameter: 20mm) | ||||||
6 | Dielectric Loss Factor(50Hz) | - | ≤0.03 | |||
7 | Water Absorption | % | ≤8(3mm) | |||
8 | Temperature Index | - | 120 | |||
Range values are measured for different thicknesses. |