Cogetherm
Cogetherm is a mica laminate for electromechanical and thermo-mechanical applications. The sheet is used as a replacement for asbestos or other insulating boards in various applications. Due to its dielectric properties and resistance to creepage currents and electric arc, Cogetherm is used in high voltage conditions. Due to its high compressive strength and outstanding thermal properties, it is used in the gas distribution sector for sealing internal network connections.
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Cogetherm M MC P PC Density g/cm3 2,15 Compressive strength 20°C Mpa 400 360 330 310 200 °C Mpa 250 235 240 225 Tensile strength Mpa 150 140 110 100 Bending strength Mpa 23 200 170 150 Thermal properties Temperature resistance constant °C 500 700 peak °C 700 1000 Thermal shock resistance <6mm gr. °C 500 400 >6mm gr. °C 400 200 Weight loss at temp. 500 °C % 1 1 700 °C % – 2 Thermal conductivity perpendicular W/mK 0,3 0,3 parallel W/mK 3 3 Specific heat J/kg 866 866 Longitudinal expansion perpendicular 10-6/OK 100 100 parallel 10-6/OK 10 10 Electrical properties Resistance to puncture 20 °CElectrical properties kV 25 25 400 °C kV 13 13 600 °C kV 10 10 Specific capacitive resistance 20 °C Ω.cm >1016 >1016 400 °C Ω.cm >1012 >1012 600 °C Ω.cm >109 >109 Relative dielectric permeability 20 °C 6,5 6,0 400 °C 7,0 6,5 Resistance to electric arc ASTM D495 S >420 >420 VDE 0303 L3 2.2.1.0 2.2.1.0 Creepage current resistance V 500 525 Dielectric loss factor at 160 oC % <1 <1
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Availability:
Board size: 1016 x 1220 mm without cutting
Useable surface: 1000 x 1200 mm
Thickness: up to 76 mm