Model Number

DDP

Diamond Patten Resin Coated  Paper

1. COMPOSITION AND PRESENTATION
Diamond dotted insulation paper is made of electrical insulating paper with diamond-shape epoxy resin dotted in both sides. The epoxy used in D.D.P contains a kind of incubative hardener material. It is a dry and crisp material at normal temperature(below 35℃)

Reel’s diameter: 300mm-360mm
Inside diameter of reel’s core: 76+2mm

2. PROPERTIES & APPLICATIONS
This product has good dielectric properties and good mechanical properties after heat solidification. It can used as insulation material for coils and between layers of oil immerged power distribution transformers.

3. MAIN TECHNICAL CHARACTERISTICS

Nominal thickness		0.08	0.13	0.17	0.20	0.25
Width		625mm,960mmm
Single resin thickness		10-15 micron
Density		0.85-1.10g/cm3
Water content		4.0-8.0%
Oil absorption		>20%
Transformer oil pollution		No
Adhesion strength	Normal	>650kpa
	At 100℃	>400kpa
Tensile(N) strength(10mmwidth)	Lengthways ≥	60	110	160	180	230
	Transverse ≥	30	50	70	80	100
Tearing strength (mN)	Lengthways ≥	450	900	1350	1500	2000
	Transverse ≥	500	1000	1500	1700	2300
Voltage-resistant(kv)	In Air ≥	0.88	1.37	2.00	2.10	2.25
	In Oil ≥	4.40	7.00	9.00	9.80	11.50

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