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3M paper insulated copper aluminum wire for transformer winding

3M paper covered aluminium wire feature :
* High dielectric strength/Excellent therm alstability/Wrapped tightly;
* Paper covered Aluminum wire is a special kind of magnet wires. Its conductors is electrical round aluminum rods which squeeze
and draw by the certain size of mold. And its insulations is special material;
* Our 3M paper covered aluminum wire uses two layers or several layers as the insulation layer;
* The wrapping direction of paper is same. And every layer paper twines conductors continually and compactly without wrinkles;
* Uses for oil-immersed transformers, reactors and other windings;

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Production Details:
* Material : Drawing or extruding bare aluminum wire confirm to National standard,smooth surface,no defects.
* Place of Origin : Henan,China(Mainland);
* Brand name : Signi;
* Type : Insulated;
* Conductor material : Aluminum;
* Conductor type : Solid;
* Insulation material : Telephone,Nomex,3M paper;
* Standard : IEC,NEMA,GB/T7673,JIS,GB/T5584;
* Thermal class : 105;
* Color : Natural;
* Certification : ISO,UL;

Specifications

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 3M paper,
according to the standard curve.
Experimental round rod and
flat wire bending apparatus
3M paper Covered Round Wire Insulation Thickness
Standard Insulation Thickness(mm) 0.3 0.45 0.80 1.20 1.80 4.25
Tolerance(mm) ¡À0.05 ¡À0.05 ¡À0.10 ¡À0.12 ¡À0.15 ¡À0.30
3M 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
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