0.02mm 2UEW/2UEW155 polyurethane enameled copper magnet winding 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 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.

RUIYUAN was established in 2002, located in Tianjin City,the second largest port city in China.We have been focusing on different kinds of high quality wires: enameled round copper wire, rectangular enameled copper triple insulated wire, silk covered Litz wire, bonding wire and special enameled wire for 21 years.Ruiyuan is one of the pioneers in producing micro thin enameled wires below 0.03mm in China. Our R & D team has 20 years of market experience. In 2019, our finest diameter is 0.011mm, and mass production has been achieved. All of our products are UL, RoHS certified, in line with industry standards IEC60317, JIS C 3202, NEMA, NW82.