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What is transformer tube？

Dec 02, 2024

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There are many types of Tube and they are widely used. We commonly use Teflon (Teflon), silicone sleeve, glass fiber silicone
Rubber sleeve, silicone rubber sleeve, silicone fiberglass sleeve, wax sleeve, PE heat shrink sleeve, PVC sleeve, heat shrink sleeve
Tube.

Teflon Insulation Sleeving

Teflon insulation sleeving is particularly valued for its high temperature resistance and voltage resistance (up to 300V). It is widely used in aerospace, automotive, medical, electronics transformers, and telecommunications industries.

Applications:

The best insulation material for transformer input/output wires.

Key Properties (as detailed in the table):

  • Temperature resistance
  • Electrical insulation
  • High mechanical strength
  • Excellent chemical resistance
  • If you'd like the details of the properties table translated or formatted, let me know!
info-1-1

Teflon's Property Table

 

Weight: 2.1 - 2.3 gr/cm
Tensile Strength: 280 - 352 kg/cm²
Elongation: 200 - 400%
Tensile Elastic Modulus: 0.4×10⁴ kg/cm²
Compressive Strength: 120 kg/cm²
Hardness (Rockwell): D50 - 55
Impact Strength (V): 16.4 gm/1000 cycles
Friction Coefficient: 0 mg/1000 cycles
Melting Point: 317 - 327 °C
Thermal Deformation Temperature (4.6 kg/cm²): 260 °C

 

 

 

Dielectric Strength: 4.5 kV/mm
Dielectric Constant at 10 Hz: <2.1
**Arc Resistance**: >300 sec
Water Absorption (24 Hrs): <0.01%
Effect of Sunlight: None
Effect of Weak Acid: None
Effect of Weak Alkali: None
Effect of Strong Acid: None
Effect of Strong Alkali: None
Effect of Organic Solvent: None

info-1600-1201

 

Teflon Insulation tubing：L,T,S,Type
‧L Type：Wall thickness：0.15mm~0.2mm Dielectric strength：3600V 
‧T Type：Wall thickness：0.3mm~0.35mm Dielectric strength：7200V 
‧S Type：Wall thickness：0.5mm~0.60mm Dielectric strength：12000V 
 
Silicon Glass Fiber Sleeving is a tubing made from non-alkaline glass fiber yarn woven into a tube. It is impregnated with a special type of resin, then cured at an appropriate temperature to achieve its final form. This sleeving offers excellent electrical insulation, flame resistance, and temperature resistance. It remains flexible even at low temperatures of -50°C, while maintaining its electrical properties at high temperatures ranging from 200°C to 250°C. The outer coating is robust, resistant to bending, and highly durable.
1721093347436
 
heat shrink tube 1mm
 

Silicone Rubber Tube
Properties
Silicone rubber tubes can withstand temperatures ranging from -70°C to 200°C, have a tensile strength of 1000 psi, an elongation rate of 300%, are fire - resistant and self - extinguishing, have good resistance to cutting and abrasion, have excellent resistance to acids, water, vegetable oils, and animal oils, have some resistance to chlorinated hydrocarbons and gasoline, and can withstand a voltage of 4000V.
Silicone rubber tubes are commonly used for:

  • Transformer insulation sleeves
  • Electric - heating insulation sleeves
  • High - temperature - resistant sleeves