6640 NMN insulation materials for transformer

free sample 6640 insulation materials for transformer      ''The high quality today is the market tomorrow''     Product Description   1. 6640(NMN) insulation materials for transformer: two layers of Du Pont Nomex paper with one layer of polyester film.   2. Features and Applications of insulation materials for transformer : --Temp. calss F (155 °C) --Excellent heat resistance, dielectric property and mechanical strength. --Good cutting and overload resistance, high stiffness. -- Good compatibility with insulation varnish. --As slot, interturn and liner insulation for F-grade motors and electric appliances.   3. Availability of insulation materials for transformer : --Formof NMN: roll, sheet, strip      insulation materials for transformer has been approved by UL (NO.: E310670) and the products have passed ROHS test.   4. Layers structure Triple layers:
Middle layer: Polyester film(PET) for Electrical Purpose
Outer layers:Dupont Nomex paper   5.Certification of insulation materials for transformer: -6640 Nomex paper/Polyester film/Nomex paperflexible laminates YAAN produce was approved by UL test and belonged to UL insulation system (OBJS2)-F . UL No.: E310670. 
- 6640 Nomex paper/Polyester film/Nomex paper flexible laminates was passed RoHS Stardard 2002/95/EC test, green electric products with leed-free, nickel-free and Cadmium-free.   6.Technical Data of 6640 insulation materials for transformer :  

Properties			Units	Values
Nominal thickness			mm	0.15	0.18	0.20	0.23	0.25	0.3	0.35
Thickness tolerance			mm	±0.02		±0.03			±0.04
Grammage and tolerance			g/m2	180±25	210±30	240±30	260±35	300±40	350±50	430±50
Tensile strength	MD	No bending	N/50mm	≥150	≥160	≥180	≥200	≥220	≥270	≥320
		After bending		≥80	≥110	≥130	≥150	≥180	≥200	≥250
	TD	No bending		≥90	≥110	≥130	≥150	≥180	≥200	≥250
		After bending		≥70	≥90	≥110	≥130	≥150	≥170	≥200
Elongation		MD	%	≥10		≥12
		TD		≥15		≥18
Breakdown voltage		No bending	kV	≥7	≥10	≥11	≥12	≥13	≥15	≥20
		After bending		≥6	≥8	≥9	≥10	≥12	≥13	≥16
Bonding property  at room temp.			/	No delamination
Bonding property at 180°C±2°C 10min			/	No delamination, no bubble, no adhesive flow
Temp. index of heat-resistance in a long term (TI)			/	≥155
The quality warranty period			Twelve months

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