Single paper wrapped conductor uses bare copper flat wire or paper wrapped flat wire as core of conductor,and insulating paper w

Paper Wrapped Conductor
Product instruction
Single paper wrapped conductor uses bare copper flat wire or paper wrapped flat wire as core of conductor,and insulating paper wrapped.high mechanical ability and Anti-short circuit ability,widely used in large and medium-sized transformer winding coil
Type of insulating paper
telephone paper,cable paper,high density interturn paper,dannisong paper,TYVEK etc.
Dimension range of conductor
a:0.8~15b:2.0~23
Prouduct Technical Parameters
Dimensional deviation
Conductor dimensional deviation
	Standard size(mm)	National standard deviation(±)	Inner quality standard(bare conductor)	Inner quality standard(paper wrapped bare conductor)
Side a	a≤3.15	0.03	-0.02~0	-0.02~0
	3.15<a≤6.30	0.05	-0.03~0	-0.03~-0.01
	6.30<a≤7.10	0.07	-0.05~0	-0.05~-0.02
	7.10<a≤9.10	0.08	-0.06~0	-0.06~-0.02
Side b	b≤3.15	0.03	-0.02~0	0~+0.02
	3.15<a≤6.30	0.05	-0.03~0	+0.01~+0.03
	6.30<a≤12.50	0.07	-0.05~0	+0.02~+0.05
	12.50<a≤15.00	0.09	-0.06~0	+0.02~+0.06
Corner radius
Corner radius comparison
Range of side a	Angle R	Deviation(±)
1.00<a≤1.60	0.5	25%
1.60<a≤2.24	0.65
2.24<a≤3.55	0.8
3.55<a≤6.00	1
6.00<a≤7.10	1.2
Thickness of insulating paper
Thickness of insulating paper		Deviation(±)
greater than>	Less than or equal to≤
-	0.5	-10
		0
0.5	1.25	-7.5
		0
1.25	-	-5
		0
Resistivity
Less than or equal to≤0.017241Ω.M M2/ M
Half hard copper index
Half hard copper performance index
Model	Yield strength	Minimum elongation	Maximum resistivity
C1	100~180	20	1/58
C2	180~200	20	1/57.5
	200~220	15	1/57.5
C3	220~260	15	1/57
Soft state copper index
0.8<a≤2.00	≥30%
2.00<a≤4.00	≥34%
4.00<a≤6.3	≥36%
Monolayer insulating paper breakdown voltage
0.4~0.8KV
Springback Angle
Less than or equal to≤5º
Executive standard
GB/T 7673.1-2008GB/T 7673.3-2008