About 3640 epoxy tube transformer insulation tube
3640 epoxy tube transformer insulation tube
- Light weight (25% steel, 70% aluminium).
- High strength
- It can be very durable in corrosive environments.
- Not easily deformed, scratched or ruptured
- Suitable for transparent radome and radio sleeve.
- Suitable for electrical and thermal insulation.
- Heat resistant grades are F (150 degrees), H (180 degrees), C (220 degrees), 250 degrees or more
- Flame retardant (UL94:V0.V1)
- Waterproof
- You can choose colors (light green is the natural color, other colors can be customized).
Table 1, unit (mm)
| Nominal internal | Min Wall-thickness | Bore tolerance | Wall-thickness Wall-thickness |
| 630 | 3.6 | c0.30 | 0.30 |
| 3080 | 4.0 | 0.40 | 0.40 |
| 80150 | 5.0 | 0.50 | 0.50 |
Nominal length and tolerance are shown in Table 2
Table 2, unit (mm)
| Nominal length | Tolerance |
| 900 | 5 |
| 490 | 2 |
| 320 | 1 |
Physical, mechanical, and dielectric properties are shown in Table 3
Table 3, unit (mm)
| Number | Index name | Unit | Index |
| One | Specific gravity, no less than | | 1.40 |
| Two | Bending strength, no less than | Kgf/cm2 | 1800 |
| Three | Tensile strength | Kgf/cm2 | 700 |
| Four | Shear strength | Kgf/cm2 | 150 |
| Five | Volume resistivity, no less than | cm | |
| Normal time | | 1012 |
| After soaking | | 1010 |
| Six | Parallel layer to layer insulation resistance, no less than | | |
| Normal time | | 1010 |
| After soaking | | 107 |
| Seven | Tangent of dielectric loss angle at frequency 50Hz, no higher than | | 0.030 |
| Eight | Vertical layer to withstand voltage, at 90 + 2 degrees Celsius transformer oil, pressure 5 minutes | Kv | |
| Wall-thickness1.5mm | | 12 |
| Wall-thickness2.0mm | | 14 |
| Wall-thickness2.5mm | | 16 |
| Wall-thickness3.0mm | | 18 |
Advanced Electrical Insulation PerformanceThe 3640 epoxy tube delivers robust insulation for transformers and electrical machinery, backed by high dielectric strength and exceptional arc resistance (>180 s). Its performance aligns with international standards like IEC 60893, GB/T 1303, and DIN 7735, ensuring reliability in demanding applications and challenging operational conditions.
Customizable Dimensions and Versatile ApplicationsAvailable in a wide range of inner diameters (10290 mm) and lengths up to 1200 mm, these tubes can be tailored for unique project specifications. They are applicable across single and three phase transformers, both high and low voltage windings, and suited for reactors, switchgear, and various insulation assemblies.
Durability and Environmental AssuranceManufactured with epoxy resin laminated fiberglass, the tube boasts excellent humidity resistance, negligible load loss, and strong machinability. Its flame retardancy (UL 94 V-0) and RoHS certification reflect a commitment to safety and environmental standards, making it a trusted solution for sustainable installation needs.
FAQs of 3640 epoxy tube transformer insulation tube:
Q: How does the 3640 epoxy tube enhance transformer insulation?
A: The 3640 epoxy tube provides high dielectric strength (12 kV/mm) and outstanding volume resistivity (1.010^14 cm), ensuring crucial electrical isolation and minimizing the risk of electrical breakdown in transformer and machinery insulation applications.
Q: What is the process for customizing tube dimensions or colors?
A: Customization is straightforward: you can specify inner diameter (10290 mm), length (up to 1200 mm), and color preference (yellow, green, or tailored on request) when ordering. Our manufacturing process will tailor the tube to your requirements and project needs.
Q: When should the 3640 epoxy tube be used in electrical systems?
A: Use this tube whenever high-reliability insulation is required, especially in transformers, reactors, switchgear, or other assemblies operating up to 35 kV. Its durable, flame-retardant construction is suited for both oil and air-cooled systems.
Q: Where can these insulation tubes be installed?
A: They are designed for installation in power and distribution transformers, switchgear, insulation assemblies, and other electrical equipment that demands high-voltage resistance and stable performance across variable environmental conditions.
Q: What are the main benefits of using this insulation tube?
A: Key benefits include high efficiency (>98%), mechanical strength, excellent electrical insulation, low water absorption, resistance to humidity and arc, environmental friendliness (RoHS compliant), and compatibility with both high and low voltage setups.
Q: How can the tube be processed and installed?
A: Thanks to its good machinability, the tube can be cut, bored, or shaped as required without compromising structural integrity. Installation involves fitting the tailored tube into the designated winding or section of the electrical assembly.
Q: Is the 3640 epoxy tube compliant with international safety and environmental standards?
A: Yes, it conforms to IEC 60893, GB/T 1303, and DIN 7735 standards and holds a UL 94 V-0 rating for flame retardancy. Additionally, it is RoHS compliant, ensuring environmental safety and suitability for global applications.