Insulation laminated products

Product Features：

Products type: Grade F, H, C of heat resistance grade
Size (mm):1000*2000
Thickness (mm)0.2---50
Voltage Level(kv)：10—35

 

Technical index of laminated glass cloth

 

Item	Property		Unit	Requirement
				3240	3241	3250	350	341	3253	352
1	Flexural strength perpendicular to layers		Mpa	≥340	≥340	≥196	≥300	≥340 ≥170 150℃	≥400 ≥280 180℃	≥400
2	Impact strength parallel to layers		KJ/㎡	≥33	≥133	≥78.4	≥150	≥147 无缺口	≥50	≥50
3	吸水性Moisture content		mg	17-73			≤0.4%	17-73	25-150
4	Electric strength  perpendicular to layer （in 90℃±2℃ 25# transformer oil）		Kv/mm	10.2-16.9	10-12	≥12	≥10	10.2-16.9		≥10
5	Voltage resistance perpendicular to layer（in 90℃±2℃ transformer oil）		Kv		≥9	≥9	≥9		9.0-31	≥9
6	Breakdown voltage parallel to layers（in 90℃±2℃  transformer oil）		Kv	≥35	≥35	≥35		≥30	35 (1min)
7	Dielectric constant power frequency			≤5.5	≥5	≥5.5	≥5.5	≤5.5	≤5.5 (1MHz)	≥5.5
8	Dielectric loss factor(power frequency)			≤0.04				≤0.04	≤0.03 (1MHz)
9	Surface resistivity		Ω	≥1.0 ×1013	1.0×103 1.0×106	≥1013		≥1.0 ×1013
10	Volume resistivity	Norma	MΩ.m	≥1.0 ×105	≥1.0 ×105	≥1.0 ×105	≥1.0 ×105	≥1.0 ×104		≥1.0 ×104
		After immersion		≥1.0 ×105	≥1.0 ×103	≥1.0 ×103	≥1.0 ×103	≥1.0 ×102		≥1.0 ×104