0.038mm Class 155 2UEW Polyurethane Enameled Copper Wire

Main test items: pinhole test, minimum withstand voltage, tensile test, maximum resistance value. Test method for pinhole test: Take a sample with a length of about 6m, immerse it in 0.2% saline. Drop an appropriate amount of 3% alcohol phenolphthalein solution in the saline and put 5m long sample in it. The solution is connected to the positive electrode, and the sample is connected to the negative electrode. After applying 12V DC voltage for 1 minute, check the number of pinholes produced. For enameled copper wire below 0.063mm, take a sample of about 1.5 meters in length. Only 1m long enameled wire needs to be put into the saline. 1.It features good solderability (self-soldering)and is solderable after completion of winding. Even at 360-400 degrees, the wire has great and prompt soldering property. There’ s no need to go on with mechanical stripping of enamel, contributing to increase of working efficiency 2. Under the condition of high frequency, it’ s characterized by good "Q" value. 3. Great adhesion of enamel is convenient for winding. Insulating property can remain well after winding. 4. Solvent resistance. Dyes can be used to change the color of enamel for identification. Colors that we can produce for Polyurethane enameled copper wire are red, blue, green, black and so on. 5. Our advantages: goal of "zero" pinholes after stretching. Pinholes not in compliance with standard are the main cause of short circuits for electronic devices. For our products, we set a goal to achieve "zero" pinholes after stretching by 15%.

Nominal Diameter	Bare Wire Tolerance	Resistance at 20 °C		Minimum Insulation and Max Outer Diameter
		Nom	Max.	Class 2		Class 3
	Class2/Class3		Class2/Class3	ins.thickn.	max dia.	ins.thickn.	max dia.
[mm]	[mm]	[Ohm/km]	[Ohm/km]	[mm]	[mm]	[mm]	[mm]
0.011		182500
0.012		157162
0.014		115466
0.016		88404
0.018		69850
0.019		62691
0.020	±0.002	56578	69850	0.003	0.030	0.002	0.028
0.021	±0.002	51318	62691	0.003	0.032	0.002	0.030
0.022	±0.002	46759	56578	0.003	0.033	0.002	0.031
0.023	±0.002	42781	51318	0.003	0.035	0.002	0.032
0.024	±0.002	39291	46759	0.003	0.036	0.002	0.033
0.025	±0.002	36210	42780	0.003	0.037	0.002	0.034
0.027	±0.002	31044	36210	0.003	0.040	0.002	0.037
0.028	±0.002	28867	33478	0.003	0.042	0.002	0.038
0.030	±0.002	25146	28870	0.003	0.044	0.002	0.040
0.032	±0.002	22101	25146	0.003	0.047	0.002	0.043
0.034	±0.002	19577	22101	0.003	0.049	0.002	0.045
0.036	±0.002	17462	19577	0.003	0.052	0.002	0.048
0.038	±0.002	15673	17462	0.003	0.054	0.002	0.050
0.040	±0.002	14145	15670	0.003	0.056	0.002	0.052

 

Nominal Diameter	Bare Wire Tolerance	Elongation acc. to JIS	Breakdown Voltage acc. to JIS
			Class 2	Class 3
(mm)	Class2/Class3	min	min	min
	[mm]	[%]	[V]	[V]
0.011
0.012
0.014
0.016
0.018
0.019
0.020	±0.002	3	100	40
0.021	±0.002	5	120	60
0.022	±0.002	5	120	60
0.023	±0.002	5	120	60
0.024	±0.002	5	120	60
0.025	±0.002	5	120	60
0.027	±0.002	5	150	70
0.028	±0.002	5	150	70
0.030	±0.002	5	150	70
0.032	±0.002	7	200	100
0.034	±0.002	7	200	100
0.036	±0.002	7	200	100
0.038	±0.002	7	200	100
0.040	±0.002	7	200	100

Transformer

Motor

Ignition coil

Voice Coil

Electrics

Relay

Drawing

Paint

Annealing

Baking

Cooling

Customer Oriented,Innovation brings more Value RUIYUAN is a solution provider, which requires us to be more professional on wires, insulation material and your applications. Ruiyuan has a heritage of innovation, along with advancements in enameled copper wire, our company has grown through an unwavering commitment to integrity, service and responsiveness to our customers. We look forward to continuing to grow on the basis of quality, innovation and service. 7-10 days Average delivery time. 90% European and North American customers. Such as PTR,ELSIT, STS etc. 95% Repurchase rate 99.3% Satisfaction rate. Class A supplier verified by German customer.