Paper Covered Rectangular Copper Wire

Application：Used as the lead of a transformer, mainly for the role of transmitting power.

Characteristic：It has excellent thermal conductivity, electrical conductivity and flexibility, and is strong flame retardant.

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Category：

Transformer

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Chemical composition

Designation				Composition (mass fraction) /%
GB	EN	ASTM	JIS	Cu+Ag	Bi	Sb	As	Fe	Pb	S	O
T2	Cu-ETP	C11000	C1100	≥99.90	≤0.001	≤0.002	≤0.002	≤0.005	≤0.005	≤0.005	≤0.040

Properties of conductors

Dimensions/mm	Elongation/%	Yield strength/MPa	Conductivity/%IACS	Volume resistivity/Ω·mm²/m
a≤2.5	≤30	100-260	≥100	≤0.017241
a>2.5	≤32	100-260	≥100	≤0.017241

Dimensions and tolerances of conductors

Dimensions/mm	Tolerances/mm
≤3.15	±0.03
>3.15-6.30	±0.05
>6.30-12.50	±0.07
>12.50-16.00	±0.10

Insulating paper thickness

Insulating paper thickness/mm	Tolerances/mm
≤0.50	-10%
0.50-1.25	-7.5%
>1.25	-5%

Rounded corner radius and tolerances of conductors

Thickness/mm	Width/mm	Rounded corner radius r/mm
Thickness/mm	Width/mm	Nominal value	Tolerances
a≤1.00	-	0.50a	±25%r
1.00＜a≤1.60	b≤4.75	0.50
1.00＜a≤1.60	b>4.75	0.50a
1.60＜a≤2.24	b≤4.75	0.65
1.60＜a≤2.24	b>4.75	0.80
2.24＜a≤3.55	-	0.80
3.55＜a≤5.60	-	1.00