Composite Polyester Film MM/MMM Insulation Used in Transformer
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COLORwhite
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FREE SAMPLEA4
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THERMAL CLASSF 155℃
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AVAILABLE WIDTH1000mm/customized
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Composite Polyester Film MM/MMM
In accordance with GB/T5591.3.1-2008 and IEC626-2
Specification:
MM/MMM is a two-layer or three-layer composite polyester film (Mylar), produced by using adhesive to adhere 2 or 3 layer polyester film (Mylar) together.
Advantage:
It has perfect mechanical property, electric property and dimensional stability.
Application:
it is used as insulating tube of high-voltage and low-voltage coils on cast-resin transformers as well as used for slot, liner, phase, and turn-to-turn insulation of motors and other electrical appliances.
﹥﹥1 MM/MMM Technical DataThickness
Tolerance Nominal Grammage PET Film Thickness Melting point BDV
Not Bended≥Polyester film/Polyester mm ±% g/㎡ цm ℃ KV 10-10 0.50 10 700±70 250 256 25 14-14-14 1.1 10 1480±103 350 256 30 14-14-14-14 1.4 10 1900±133 350 256 35 Adhesive Property 180℃±2℃,10min
No delamination, blister,or adhesive flowTemperature Index（T.I） 155℃
﹥﹥2 Test and stock
2.1 Standard: GB/T5591.3.1-2008 and IEC626-2.
2.2 Storage: Room temperature, dry, clean in warehouse. Avoid fire, heat and sunlight.
2.3 Storage life: 12 months. Still effective if qualified in retest after 12 months. -
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