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HOME » Electrical Materials » 360 Epoxy fiberglass cloth laminated tube

360 Epoxy fiberglass cloth laminated tube

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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.

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) —- —- —- —- —-
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