Kite Brand Tufnol
Kite Brand Tufnol is a first class electrical insulating material with good dielectric strength and high insulation resistance. It has low moisture absorption and good mechanical strength, although its impact strength is lower than other grades of Tufnol. Kite Brand Tufnol is easy to machine and can be hot punched up to 3.2mm thick.
Applications:
A wide range of electrical insulation applications at low, medium and high voltage including terminal boards, mounting panels, tag strips, coil formers, insulating sleeves, busbar supports, brush holders, insulating spacers and special purpose plugs and sockets.
Availability:
| Typical Sheet Size (mm): |
1200x1200 |
| Thickness (mm): |
0.8 through to 25 |
PAR can also supply tubular section, hexagonal bar and rectangular bar.
PAR can also offer Black Kite Brand Tufnol which may be subject to minimum order quantities.
Specifications:
| Sheet |
BS EN 60893-3-4 Type PF CP 206 |
| Round Rod |
BS EN 61212-3-2 Type PF CC 32 |
| Rectangular Tube |
BS 6128 Part 13 Type PF CC 131 |
Technical Specification:
| Property |
Unit |
Result |
| Cross Breaking Strength |
MPa |
175 |
| Impact Strength - notched - charpy |
kJ/m² |
2.7 |
| Compressive Strength - flatwise |
MPa |
350 |
| Compressive Strength - edgewise |
MPa |
200 |
| Resistance to Flatwise Compression |
% |
1.2 |
| Shear Strength - flatwise |
MPa |
105 |
| Water Absorption - 1.6mm thick |
mg |
39 |
| Water Absorption - 3mm thick |
mg |
47 |
| Water Absorption - 6mm thick |
mg |
56 |
| Water Absorption - 12mm thick |
mg |
70 |
| Electric Strength flatwise in oil at 90ºC - 1.6mm thick |
MV/m |
14.5 |
| Electric Strength flatwise in oil at 90ºC - 3mm thick |
MV/m |
13 |
| Electric Strength flatwise in oil at 90ºC - 6mm thick |
MV/m |
8.8 |
| Electric Strength flatwise in oil at 90ºC - 12mm thick |
MV/m |
6.1 |
| Electric Strength edgewise in oil at 90ºC |
KV |
55 |
| Insulation resistance after immersion in water |
ohms |
1x1010 |
| Loss Tangent at 1 MHz |
|
0.037 |
| Permittivity at 1 MHz |
|
5.1 |
| Relative Density |
|
1.36 |
| Maximum Working Temperature - Continuous |
ºC |
90 |
| Maximum Working Temperature - Intermittent |
ºC |
120 |
| Thermal Classification |
|
Class E |
| Thermal Conductivity through Laminae |
W/(mK) |
0.26 |
| Thermal Expansion in plane of Laminae |
X 10-5 / K |
1.8 |
| Specific Heat |
kJ / (kgK) |
1.5 |
BACK