Zhongtian Group

Chinese Manufacturer

Filament Wound Epoxy Tubes

1. Funcation: High mechanical properties, electrical properties and heat resistance performance. 2. Standard: JB/T 8150-1999 3. Usage: Used as insulating structural parts of high voltage electrical apparatus.
Parameter
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) ---- ---- ---- ---- ----
Note: Due to continuous product improvement, the dimensions provided in this sample are for reference only. If necessary, our company can design and produce according to user requirements. Please contact the company in time.

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