slot insulation,interphase insulation and liner insulation polyester film

1.product name:electrical insulation polyester film     2.product model:6021   3.insulate class:E   4.product description: 6021 polyester film is biaxially oriented polyethelene terphthalate(PET)film 6021 is a mily white film this product has good dielectrical and high mechanical properties.   5.application: It is suitable for electrical insulation,such as slot insulation,interphase insulation and liner insulation in electric motor transformer and other electric appliances ,wrapping insulation for coils and cables,as well as producing insulating flexible composit material.    

Item	Index					Unit	Values
1	Tensile strength(MD and TD)			25~100μm		Mpa	≥150
				>100~190μm			≥140
				>190μm			≥110
2	Break elongation  ( MD and TD)			25~50μm		%	≥60
				>50~350μm			≥80
3	Shrinkage (MD and TD)			25~190μm		%	≤3.0
				>190μm			≤2.0
4	Dielectric strength					V/μm
5	Volume Resistivity					Ω.m	≥1.0×1014
6	Relative Dielectric Constant(50HZ)						2.9~3.4
7	Dielectric Dissipation Factor(50HZ)						≤5.0×10-3
8	Density					kg/m3	6020	6021
							1390±10	1400±10
9	Melting Point					°C	≥256
10	Surface Resistivity					Ω	≥1.0×1013
11	Electrolytic Corrosion			Ocular Estimate		class	A1
				Tensile Strength of Metallic wire		%	≤2.0
12	Dimensional Stability Under high temperature				When pulling	°C	≥200
The tolerance deviation of diameter and width of roll                            mm
Width			Diameter			Tolerance Deviation
						Film width	Extend from the reel edge
8~150			180~250			±0.5	< 0.5

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