3240 and fr4 epoxy glass cloth laminated insulation sheet

3240 and fr4 epoxy glass cloth laminated insulation sheet 1>temperature grade:B glass (130C) 2>thickness:0.5mm---150mm

epoxy glass cloth laminated insulation sheet

Properties		Unit	Grade
			3240	3240-1	3240-3
Flexural strength perpendicular to laminations	≥	MPa	340	320	320
A:  under normal conditions
E-1/150 :150±5 °c			—	—	—
Impact Strength parallel to laminations (Charpy)	≥	kJ/m2	33	30	30
Insulation Resistance After immersion in water (D-24/23)	≥	Ω	5.0×108	1.0×108	1.0×108
Dielectric strength perpendicular to laminations (in 90±2°c transformer oil,1 mm in thickness)	≥	kV/mm	14.2	14.2	8.0 (thickness 3mm)
Breakdown voltage parallel to laminations (in 90±2°c transformer oil)	≥	kV	35	30	30
Permittivity (48-62Hz)	≤	—	5.5	—	—
Permittivity (1MHz)	≤	—	5.5	—	—
Dissipation factor (48-62Hz)	≤	—	0.04	—	—
Dissipation factor(1Mz)	≤	—	0.04	—	—
Water absorption (D-24/23,1.6mm in thickness)	≤	mg	19	19	19
Density		g/cm3	(1.70-1.90)	(1.70-1.90)	(1.70-1.90)
Flammability		Class	—	—	—
Color		—	Natural	Natural	Natural
Reference standard			Q/TXXFR002-2009

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