Our unblemished range of Phenolic Paper Tubes are used in electrical appliances as a part of insulating structure. The high insulation strength of these tubes has made them hugely famous among the others offered in this realm. Manufacturing that is synced with regulatory standards of industry, is performed under the care of experienced professionals by making use of advanced technology at our fully facilitated production unit. These Phenolic Paper tubes are made available in number of sizes to our precious clients at very low market prices.
Features:
- Resistant to breakage
- High mechanical strength
- Light in weight
Technical Specifications
Properties | Unit | Grade |
3520 Phenolic Paper Laminate Tube |
Inside diameter (5-25mm) | Inside diameter (>25mm) |
Density | g/cm | >1.03 | >1.10 |
Water absorption rate | % | Wall thickness 3mm <8 |
Thermostability (24h) | oC | 120 | 120 |
Flexural strength | Mpa | >50.0 | >60.0 |
Compressive strength | Mpa | >50.0 | >60.0 |
Shear Strength | Mpa |
|
|
Dissipation factor | 50Hz |
| <0.03 | <0.03 |
Dielectric strength perpendicular to lamination (withstand voltage) | KV/mm | Wall thickness | 1.5-2.5mm | >8.5 | >8.5 |
(in 90+2oC/5min transformer oil) | >2.5-3.5mm | >8.0 | >8.0 |
>3.5-4.5mm | >7.0 | >7.0 |
>4.5-6mm | >6.5 | >6.5 |
>6-9mm | >6.0 | >6.0 |
Dielectric breakdown parallel to laminations (in 90+2oC/5min transformer oil) | KV |
| 20 |
| 25 |
Surface withstand voltage (in case of humidity, under normal condition air withstand voltage 1 min) | KV |
| 12 |
| 12 |
Application
It is used for the insulating spare parts of the electrical appliances and transformers, also used under humidity environment and transformer oil,
Thermal grade is class E.
Outer diameter: 10-300 mm
Wall Thickness: 1-50 mm Length: 1000 mm
Color: yellow, red , green, black.
The other size can be supplied according to customers' requests.
Products can be supplied sheets or shapes according to customer drawing
Note: The values noted in below technical specification are given only for our
Customers’ reference and should not be used in writing specifications.