Diamond Dotted Paper/DDP Insulation Material

• Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish
• Type: Insulation Paper
• Chemistry: Organic Insulation
• Material: Paper
• Thermal Rating: H 180
• Maximum Voltage: 10KV~20KV
• Model NO.: KLY-DDP
• Classification: Organic Insulating Material
• Certification: ISO9001, IEC
• Color: Brown
• Transport Package: Pallet
• Trademark: Kang Liyuan
• Origin: China
• HS Code: 4823909000
• Production Capacity: 50000 Kg

Product Description

 

Brief Introduction
Product description 
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.
The Diamond dotted Paper 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

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)

 

 
Test Report

Product Name: Diamond Dotted Paper (DDP)
Test Method used: KLYQB/T5133-85
Manufacture: Kang Liyuan Science & Technology (Tianjin) Co.,Ltd.
Date: January, 2019
 

Test No.	Item	Unit	Qualified Data	Test Data
1	Length	mm	0.08±0.01	0.08
2	Width	mm	--
3	Tightness	g/cm^3	0.95-1.05	1.01
4	Tear Strength(horizontal)	MN	≥5700	5765
5	Tensile Strength(vertical)	KN/M	≥38	38.6
6	Tensile Strength(horizontal)	KN/M	≥18	18.5
7	Bonding Strength	MPa	≥400	404
8	Moisture Content	%	6.0-9.0	6.7
9	Breakdown Voltage	KV/mm	≥45	45.6
Conclusion and Result: PASS                            Kang Liyuan Science & Technology (Tianjin) Co.,Ltd.                                                  Technology Center

Tested by:  Yang Ding                 Inspected by:  Tianfeng Yang

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