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Featured Electrical Insulating Material—ZTELEC GROUP

1.  FR4 Copper Clad Laminated Sheet

Base Color Thickness Copper Foil Thickness Regular Size
Yellow / Nature Color 0.05~3.5mm 12/18/35/70/105um 915*1220mm


Note: The product of the other size and thickness are able to be produced according to customer’s specific requirements.

2. Epoxy Glass Fiber Sheet

The product adopts 7628 glass fiber cloth impregnated with epoxy resin by hot pressing. It has high mechanical and electrical properties, good heat resistance and humidity resistance. Products are widely used on mechanical, electronic and electrical equipment as components of insulation parts. The product have higher mechanical properties, electrical properties and high thermal mechanical strength.

3. Laminated Wood

Standards:  GB/T 20634.3-2008 /IEC61061-2:1998
NO. Properties Unit Index
DLW101 DLW201 DLW202 DLW301
1 Appearance Smooth Surface, Neat Edge Cutting, No Layered Cross-section
2 Density g/cm³ 1.2-1.3 1.1-1.2 1.1-1.2 1.0-1.1
3 Vertical  Bending Strength A Direction MPa ≥80 ≥65 ≥65 ≥55
B Direction ≥80 ≥65 ≥65 ≥55
4 Impact Strength A Direction KJ/m2 ≥15 ≥13 ≥13 ≥10
B Direction ≥15 ≥13 ≥13 ≥10
5 Interlaminar

Shear Strength

MPa ≥9 ≥8 ≥8 ≥7
6 Vertical Electrical Strength

(90℃ transformer oil)

Kv/mm ≥9 ≥8 ≥7 ≥7
7 Parallel Breakdown Voltage

(90℃ transformer oil)

kv ≥50 ≥50 ≥50 ≥50
8 Contamination to Liquid Dielectric ≤0.1
9 Shrinkage after Drying A Direction ≤0.3 ≤0.3 ≤0.3 ≤0.3
B Direction ≤0.3 ≤0.3 ≤0.3 ≤0.3
Thickness Direction ≤3 ≤3 ≤3 ≤3
10 Water Content ≤6 ≤6 ≤6 ≤6
11 Oil Absorption ≥5 ≥8 ≥8 ≥10
Application Scope of Laminated Wood Insulating Parts used for Transformer Transformer Rating ≤110KV ≥110KV 66-35KV ≥ 35KV

4.  Phenolic Laminate Paper-base Sheet

This product is made of insulating paper impregnated with phenolic resin and is formed by baking and hot pressing. It has high mechanical and electrical properties. This product can be used as components of insulation parts for motors with higher mechanical performance and electrical equipment. It can also be used in the oil of transformer.

5. Epoxy Laminated Glass Cloth Tube

With good dielectric property and machinability, the product can be used as components of insulation structural of electrical equipment, and can also be made into coil insulation tube and insulation end coil of dry-type transformer.

6. Diamond Dotted Paper

Thickness: 80um,130um,180um,200um,250um,300um

Width:  625mm/980mm (Ribbon is available.)

Roll Diameter: 250~300mm    Weight of each roll: 45~60Kg

7.  Phenolic Cloth-base Laminated Tube

The product has higher radial tensile strength. It can be used as support structure and wear-resistance parts of seals or bears.

8.  Unsaturated Polyester Resin Fiber Yarn Pultrusion Material

This product is made of non-alkali glass fiber yarn impregnated with unsaturated polyester resin by the traction force and finally pultruded and solidified in hot mold. It is mainly used as insulation components of electrical equipment. The product can be rectangular, I-shaped, angular, T-shaped, groove-shaped, tubular and cylindrical, etc.

Please contact me if you are interested.


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