PRESS PAPER AND PRESS BOARD PB2 TYPE P 4.1 IN ACCORDING TO IEC 641
Description:
PRESSPAPER & PRESS BOARD PB 2 is a special product made from the purest wood cellulose fibers, without any addition of binding agents, due to its high chemical purity, press paper and press board PB2 is particularly suitable for use as di-electric insulating material in electric machines, capacitors, motors, etc., and especially in oil-cooled transformers.
Features
● Good forming properties,
● Colour natural
● High purity and high oil-absorption
● High electric dielectric strength
●Press paper can be composite with Polyester Film & diamond dots
●Good compatibility with liquid dielectrics
Applications
As interlayer insulation in liquid-filled transformers, motors
Available
Thickness: 0.10mm – 0.50mm
Both in roll and sheet are available
Width: 500mm – 1250mm
Special sizes are available on request
Different colors are available on request
| Test standard | Measured value | Standard value | |
| Thickness tolerance | JIS C 2111 | 0.25mm | ±0.02mm |
| Apparent density | JIS C 2111 | 1.18 g/cm³ | 0.95 – 1.3 g/cm³ |
| Min. Tensile strength M.D | JIS C 2111 | 14 kg/mm² | 7 kg/mm² |
| Min. Tensile strength C.M.D | JIS C 2111 | 4.5 kg/mm² | 3.0 kg/mm² |
| Min. Elongation M.D | JIS C 2111 | 2.5% | 2.0% |
| Min. Elongation C.M.D | JIS C 2111 | 8.5% | 4.0% |
| Max. shrinkage C.D | JIS C 2111 | 1.2% | 2.0% |
| Max. shrinkage T.D | JIS C 2111 | 6.0% | 8.0% |
| Min. Dielectric breakdown Strength | JIS C 2111 | 8.5 kV/mm | 6.5 kV/mm |
