China Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube, Find details about China Epoxy Fiber Glass Winding Tube, FRP Insulation Fiberglass Filament Winding Tubes from Durable High Tensile 35kv to 1100 Kv Hollow Epoxy Fiberglass Tube
Basic type | Unit | B-21 High Load | B-06 Standard | B-03 General | B-01 Economic |
Static load | Mpa | 240 | 240 | 240 | 150 |
Dynamic load | Mpa | 160 | 150 | 100 | 30 |
Density | g/cm3 | 2.0 | 2.0 | 2.0 | 2.0 |
Max.speed | m/s | 0.20 | 0.20 | 0.20 | 0.10 |
Max.PV | MPa*m/s | 2.0 | 2.0 | 1.8 | 1.6 |
Coefficient of friction | - | 0.03~0.12 | 0.03~0.12 | 0.03~0.12 | 0.15~0.25 |
Working Temp. | ºC | ±180 | ±180 | ±180 | ±120 |
SHORT-TIME WORK TEMPERATURE | ºC | -180~+230 | -180~+230 | -180~+230 | -120~+140 |
Radial compressive strength | Mpa | 550 | 550 | 550 | 200 |
Hardness | HRM | 95 | 95 | 95 | 85 |
Linear thermal expansion factor | Um/mºC | 13×10-6 | 13×10-6 | 13×10-6 | 30×10-6 |
Color | - | Black | Black | Black | Black |
Item | Uint | Value | ||
Density | g/ cubic centimeters | more than 1.9 | ||
Compression Strength | Mpa | more than110 | ||
Shearing Strength | Mpa | more than 25 | ||
Bending Strength | Mpa | more than210 | ||
Bending Strength(Circumference) | Mpa | more than 400 | ||
Air tightness | Gas pipe | Mpa | 2.94 | No leak |
Oil pipe | 58.8 | |||
Surface breakdown voltage after wettingin normal air for 1 min with gap between electrodes of 30mm | KV | more than15 | ||
Parallel to laminate breakdown voltage ( in transformer oil of 90±2ºC) | KV | more than 25 | ||
Perpendicular to laminate breakdown voltage (in transformer oil of 90±2ºC,5min wallthickness 4mm ) | KV | more than 22 | ||
Dielectric loss factor 50 Hz | less than0.01 | |||
Leakage current (between gap of 500mm at 40 kv dc500mm40KV | MA | less than 1 | ||
Content of fiberglass | % | 70 | ||
Water absorbtion rate | % | less than 0.02 |
SPECIFICATIONS FOR EPOXY FIBERGLASS WINDING TUBES | |||
Category | Characteristics | Unit | Value |
Mechanical Properties | Tensile strength(ring) | MPa | ≥900 |
Tensile strength(axial) | MPa | ≥55 | |
Compressive strength(longitudinal) | Mpa | ≥150 | |
Perpendicular to the bending | MPa | ≥120 | |
Vertical bending modulus of elasticity | MPa | ≥1.6X104 | |
Shear strength | MPa | ≥700 | |
Electrical Properties | Axial impact withstand voltage | - | 7KW/mm, 5 times |
Radial frequency withstand voltage | - | 8KW/mm, 1 min | |
Medium wearing factor(50Hz) | - | 7.65X10-3 | |
Relative dielectric constant(50Hz) | - | 5.59 | |
Partial discharge(35KW) | pC | ≤5 | |
Water diffusion test | - | 12KW, 1min | |
Sheet resistivity | Ω | ≥9.5X1014 | |
Volume resistivity | Ω.m | ≥6.0X1012 |