Specifications

1.Consistent quality and competitive price
2. ISO9001-2008 and SGS approve
Welcome to you VISIT our factory.

Name of goods:

Diamond Pattern Paper, Diamond Dotted Insulating Presspaper, Diamond Dotted paper, DDP, Double Sided

Diamond Pattern Resin Coated Paper

Dimensions

Thickness(mm) ---0.08mm, 0.13mm ,0.18mm , 0.20mm 0.25mm ,0.38mm ,0.50mm

Width (mm)---.625 ,960,1000,1020,1100

We also can produce Width of DDP according to customer’s requirements

Roll Diameter--- 280-330mm

Core Diameter --- 76±2mm

 

Diamond pattern adhesive insulating paper is a type of insulation material coating special modified epoxy resin one electrical insulating materials. It is widely applied in inter-layer insulation and turn insulation of oil-immersed power transformers. During application the coated layer starts to melt under certain temperature in the process of coildrying and results in adhesion effect. As temperature rises, it starts to solidify and makes coils’ adjacent layers reliably bond into a fixed unit. The adhesive strength of epoxy resin is strong enough to prevent the displacement of coil layers in case of short-circuit. so as to ensure the long-term mechanical and electrical performance of insulation structure

 

No	Test items		Unit	Require
1	thickness		mm	0.13
2	Base material tightness		g/m3	0.85-1.10
3	Moisture		%	4.0-8.0
4	Oil absorption		%	20
5	Tensile strength	Vertical	N/10mm	110
		Horizontal		50
6	Tear strength	Vertical	MN	900
		Horizontal		1000
7	Breakdown Voltage	In air	KV	1.37
		In oil		7
8	Adhesive strength	Normal state	KPA	650
		100°C±2°C		400

 

Product Solidification conditions: firstly ,temperature rises to 125±5°C after maintaining 90±5°C for three hours and then the product completely solidifies after maintaining for six fours