Telephone cable paper covered aluminum wire, also known as plain paper covered insulated aluminum, according to customer requirements, in the aluminum conductor winding three or more layers of cable paper or telephone paper. Plain paper covered wire is oil immersed transformer coil and similar electrical coil of special material, after the immersion using temperature index of 105℃. According to customer requirements, and can be divided into phone paper, cable paper, high voltage cable paper, paper and other winding insulation.
Product Tech Information :
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 |
Paper Covered Round Wire Insulation Thickness | ||||||||||||
Standard Insulation Thickness(mm) | 0.3 | 0.45 | 0.80 | 1.20 | 1.80 | 4.25 | ||||||
Tolerance(mm) | ±0.05 | ±0.05 | ±0.10 | ±0.12 | ±0.15 | ±0.30 |
Paper Covered Flat Wire Insulation Thickness | ||||||||||||||||
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 |
Papers are applied with butt intercalation in the following manners :
*2 papers- double butt intercalation- advanced 40-60%.
*3 papers- triple butt intercalation-advance 28-38%.
Papers are lapped in the following manners :
*One paper applied with 47-49% overlap-equivalent to 2 papers.
* One paper applied with 64-66% overlap-equivalent to 3 papers.
*Two papers each applied in one of the