Contact Platform Support
Help CenterDiamond Dotted Paper ( DDP )
Related Products
-
Electrical Insulating Crepe Paper TubeNegotiableMOQ: 1 Meter -
NON-ALKALI FIBERGLASS TAPENegotiableMOQ: 1 Meter
-
SELF-EXTINGUISHABLE FIBERGLASS SLEEVING COATED WITH SILICONE RESINNegotiableMOQ: 1 Meter
-
Polyester Shrinking TapeNegotiableMOQ: 1 Meter
-
Polyester Film for Electrical InsulationNegotiableMOQ: 1 Meter
It is to be used in oil-immersed transformers for the insulation between of coils. On the insulation layer , there is a layer dotted epoxy resin that will be changed with high temperature change that is to be called as felt..
Made of kraft paper coated with heat curable epoxy resin, the epoxy adhesive is applied to both sides of the paper in a diamond pattern consisting of 9.5mm X 9.5mm diamonds with 15.9mm center spacing
The Diamond Dotted Paper , alias such as: epoxy adhesive diamond paper, Diamond Dotted Presspaper , Double sided Diamond Pattern Paper, DDPP, DPRCP , D.D.P , DPP, Diamond Dotted insulating Paper , Varnished Paper , etc.
It is a kind of material with inertia , dry and no conglutination at normal temperature (below 30 degree C). The Diamond Dotted paper will make the electric conductor forever felt up as a hard unit under the high temperature by its internal latency substance. When the temperature is rising up to 90 degree C, The diamond dotted paper begins one-off thaw and then one-off solidification. When to keep the temperature at 90 degree C for 90 minutes , the epoxy resin would paste on neighboring cable and paper safely. The felt intensity is as high as to 70psl at 100 degree C (The value at least is equal to 0.275Mpa , America standard)
DIMENSIONS:
THICKNESS (mm) : 0.08,0.13 ,0.18, 0.25, 0.38 ,0.50
WIDTH (mm) : 500, 625, 810, 960, 1000,1100,1219,1300
|
Specified Properties |
Units |
Standard |
||||||
|
Thickness Tolerance |
inch |
0.003 |
0.050 |
0.070 |
0.010 |
0.015 |
0.020 |
|
|
Mm |
0.076 |
0.130 |
0.180 |
0.250 |
0.380 |
0.500 |
||
|
Thickness tolerance(base paper) |
% |
±10 |
||||||
|
Width tolerance |
mm |
± 5 |
||||||
|
Apparent Density |
g/mm^3 |
0.95 – 1.15 |
||||||
|
Tensile strength Min Machine direction |
N/mm2 |
70 |
70 |
80 |
80 |
80 |
80 |
|
|
corss machine direction |
35 |
35 |
35 |
35 |
35 |
35 |
||
|
Elongation MD |
% |
2 |
||||||
|
CD |
4 |
|||||||
|
Dielectric breakdown (volts/layer, dry test) |
volts |
750 |
1100 |
1400 |
2100 |
2900 |
3100 |
|
|
No pollution oil of transformer |
% |
Non pollution |
||||||
|
Moisture Content |
% |
4.0-8.0,all thickness |
||||||
|
PH water extract |
% |
6.0-8.0, all thickness |
||||||
|
Ash Content Max |
% |
1% maximum |
||||||
|
Bond Strength Min |
kPa |
450 |
||||||
|
Coating thickness per side |
mm |
0.006 to 0.012 |
||||||
|
All date shown represents nominal o typical vlues only and should not be construed or maximun unless specifically stated |
Send Inquiry to This Supplier
You May Also Like
-
Glass WoolNegotiableMOQ: 2500 Rolls
-
Self-fusing Electrical Silicone Rubber Hose Leak Waterproof High Pressure Plumbing Repair Tape Silicone Self Fusing TapeNegotiableMOQ: 1 Roll
-
Air Conditioner Refrigeration HVAC Electrical Insulation Tape Pvc Insulating Tape PVC Insulation TapeNegotiableMOQ: 1
-
Silicon Rubber Pad Thickness 1.0,silicon Pad for SublimationUS$ 5 - 50MOQ: 10 Pieces
-
Polymeric Insulator Fittings Y Style FittingUS$ 3 - 5MOQ: 1000 Pieces
-
Polyimide TapeNegotiableMOQ: 100 Rolls
-
Fiberglass ProfileUS$ 0.2 - 19MOQ: 3000 Meters
-
Wool Noil / Wool Waste / NoilUS$ 2.7 - 2.8MOQ: 15 Tons
-
SL-4050F Screw In Bus Bar Support Plastic Overhead Line InsulatorUS$ 0.1 - 5MOQ: 100 Pieces
-
Insulation Tape (NPTC-PVC)NegotiableMOQ: 1000 Pieces
