China Suppliers Factory for Oil-Immersed Transformers Copper Paper Covered Flat Wire
Place of Origin: Jiangsu, China
Brand Name: Hengte Electric Wire
Model Number: Paper Coated Flat Copper Wire
Type: Insulated
Application: Oil-immersed transformer, rectifier, reactors winding
Conductor Material: Copper or Aluminum
Conductor Type: Solid
Insulation Material: Kraft paper, 3M paper, Telephone cable paper, MIKITOKU paper
Diameter: Round: 2.0–7.0mm; Flat: a: 0.8–5.6mm, b: 2.0–16mm
Certification: UL, SGS, RoHS, ISO9001
OEM: Yes
Thermal Class: 105℃
Insulation Paper: Cable paper / Telephone paper / Insulation paper / NOMEX
Standard: IEC, NEMA, GB, JIS
Main Application: Oil-immersed transformer windings
Bobbin: 30kg / 50kg / 150kg wooden spool or as per customer requirements
Supply Ability: 1,500 Ton/Month – Telephone Paper Covered Aluminum/Copper Round Wires & Strips
Product: Paper Coated Flat Copper Wire
Inner Packing: 30 / 50 / 150 kg wooden spool — different sizes available according to wire diameter
Outer Packing: Wooden case, or as per customer's special requirements
Port: Qingdao, Shanghai, Tianjin
Telephone cable paper / 3M paper / MIKITOKU covered wire for oil-immersed transformer winding. Telephone cable paper covered aluminum wire, also known as plain paper covered insulated aluminum, is wound with three or more layers of cable paper or telephone paper according to customer requirements. Plain paper covered wire is a special material for oil-immersed transformer coils and similar electrical coils, with a temperature index of 105℃ after immersion. Available types include: phone paper, cable paper, high voltage cable paper, and other winding insulation options.
Project Name |
Standard |
Test Tool |
Conductor Size and R Corner Radius |
Follow standard of GB/T7673.1-87 |
Micrometer and R type |
Bend |
The specimen is not cracked, no crack, no obvious sticking out of the paper according to the standard curve. |
Experimental round rod and flat wire bending apparatus |
Standard Insulation Thickness (mm) |
0.30 |
0.45 |
0.80 |
1.20 |
1.80 |
4.25 |
Tolerance (mm) |
±0.05 |
±0.05 |
±0.10 |
±0.12 |
±0.15 |
±0.30 |
Standard Insulation Thickness (mm) |
0.45 |
0.60 |
0.95 |
1.35 |
1.60 |
1.95 |
2.45 |
2.95 |
Maximum Insulation Thickness (A–a) |
0.57 |
0.74 |
1.14 |
1.56 |
1.84 |
2.23 |
2.77 |
3.32 |
Minimum Insulation Thickness (B–b) |
0.40 |
0.53 |
0.85 |
1.20 |
1.45 |
1.80 |
2.30 |
2.75 |