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3641 Epoxy fiberglass cloth laminated tube

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Item	units	values
3520	3640	3641	380	382	364	355	356	3652
Density	g/cm 3	Less thanΦ25mm, ≥1.03. More thanΦ25mm, ≥1.1	Less thanΦ13mm, ≥1.65. More thanΦ13mm, ≥1.7	Less thanΦ13mm, ≥1.65. More thanΦ13mm, ≥1.7	≥1.25	----	≥1.40	≥1.5	≥1.5	≥1.5
Bending strenth	MPa	≥50-60	≥17	----	≥137	≥400	≥117.6	----	≥150	＞80
Compressive strength	MPa	≥50-60	≥68	≥138	≥118	≥98	≥68.6	≥80	≥70	≥70
Shear strength	MPa	----	----	≥14.7	----	----	≥9.8	≥8.0	≥12	≥10
Water absorption rate	%	3-10	----	0.4-1.0	≤1.2	----	----	----	----	----
Vertical layer direction voltage resistance(in 90℃±2℃ transformer oil 5min)	KV	8.5~6	7~18	----	----	----	7~18	----	----	----
Parallel layer direction voltage resistance (in 90℃±2℃ transformer oil 5min)	KV	20~25	25	----	----	≥25 Normal state	----	30	----	25
Surface voltage resistance	KV	12	12	----	----	----	----	----	----	----
Dielectric loss factor (50Hz,180℃±2℃)		≤0.03	≤0.03							≤0.03
Volume resistivity 180℃	MΩ.m	----	----	----	----	----	≥10 5	----	≥10 5	----
Thermal stability	℃	120(24h)	----	----	105(24h)	----	----	----	----	----

1. Material: epoxy resin, curing agent, non-alkali glass cloth, heat resistance level: B class.
2. Funcation: High mechanical properties, electrical properties and heat resistance performance.
3. Standard: JB/T 8150-1999
4. Usage: Used as insulating structural parts of high voltage electrical apparatus.

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3641 Epoxy fiberglass cloth laminated tube

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