Electrical Insulation Paper DDP Paper

Product Specifications

Prod Model:	Diamond Dotted Paper
Markets:	North America,South America,Eastern Europe,Africa,Oceania,Mid East,Eastern Asia
Thickness:	0.08mm-0.38mm
Width:	960mm 1000mm
Package:	Pallet
Storage Life:	1 Year
Application:	Insulating Varnish
Type:	Insulation Paper
Chemistry:	Inorganic Insulation
Material:	Paper
Maximum Voltage:	20KV~100KV
Thermal Rating:	Below 35
Brand:	Chr

Product Description

Product Description

Description
Diamond dotted insulation paper is made of electrical insulating 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 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 70psi at 100 degree C (The value at least is equal to 0.275Mpa, America standard)
 
Features
? Insulation class A (105 °C) according to according to IEC 641
?Kraft paper, 100% sulphate pulp
? High purity and mechanical strength
?Color natural
?Baked enamel coating: Epoxy resin , rhombic, one or both sides
?Good compatibility with liquid dielectic after the baked enamel coating has hardened.
?Care should be taken that the that the layers to be baked remain closely pressed against each other during baking time
 
Applications
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
 
Available
Thickness: 0.05mm - 0.35mm
Both in roll and sheet are available
Width: 650mm - 1350mm

Number	Index		Unit	Standard
1	Thickness &tolerance		mm	0.08±0.005 0.13±0.007 0.18±0.010 0.20±0.010 0.25±0.010
2	Density		g/cm3	0.85~1.10
3	Adhensive thickness of single side		μm	10~15
4	Water content		%	4.0~8.0
5	Oil absorbency		%	≥20
6	Adhensive strength	Ordinary state	kPa	≥650
		100ºC±2ºC		≥400
7	Pollution for transformer oil		-	Pollution-free(tan∮<0.001)
8	Tensile strength	MD	N/10mm width	≥60	≥110	≥160	≥180	≥230
		CD		≥30	≥50	≥70	≥80	≥100
9	Tear Index	MD	Mn	≥450	≥900	≥1350	≥1500	≥2000
		CD		≥500	≥1000	≥1500	≥1700	≥2300
10	Breakdown	In air	KV	≥0.88	≥1.37	≥2.00	≥2.10	≥2.25
		In oil		≥4.40	≥7.00	≥9.00	≥9.80	≥11.50