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COMPOSITE MATERIAL

Polyester Film -Insulation Paper Laminate Material

This laminate product is made by polyester film and insulation paper. It has excellent dielectric strength, and mechanicalproperty. It is widely used in solt, phase and liner insulation in E class transformer and other electric appliances.

Thickness

Unit

Index

Specific weight

mm

0.15

0.17

0.20

0.22

0.25

0.27

0.30

0.35

Specific weight

g/m2

200

215

260

275

315

330

360

415

Tensile strength

Longitudinal direction

unfold

N/10mm

140

170

210

240

280

290

320

350

fold

85

88

130

140

140

150

180

210

Transverse direction

unfold

102

110

135

140

158

155

170

200

fold

80

85

100

100

100

100

100

150

Breakdown voltage

unfold

kV

8.5

fold

kV

7.5