Presspan
Presspan are employed in electrical machines for layer insulation, slot, insulation, slot closure and interphase insulation as a result of the general frenf fowards performance increase these materials are submitted to high electrical and thermal stresses. Good mechanical strength is the prerequisite for automatic processing by the customer. These demands are met in particular by combined flexible insulating material in multi-layer structures of pressboard, polyester and polymidde foils, of aramide paper and various non-woven fabrics.
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Material Properties
Apparent density
1.1∼1.2 g/cm3
Humidity
6-8%
Ash content
Máximo 3%
Tensile strength
MD maximun 65 N/mm2
CMD maximun 35 N/mm2
Elongation at break
MD minimum 2.5%
CMD minimum 6.5%
Dielectric strength
maximun 6 KUImm
Available
Widths
From 0.15-1mmm
Coils (width)
640-1280mm
Plates
640-800mm 800-1280mm
Rolls
Minimum thickness 0.15mm