The taped litz wire refers to the reinforced insulating stranded wire that is wrapped with one or more insulating films outside the ordinary stranded wire according to a certain overlap rate. It has the advantages of good voltage resistance and high mechanical strength. The operating voltage of the litz wire is up to 10000V The working frequency can reach 500kHz, which can be widely used in various high-frequency and high-voltage electric energy conversion equipment.
| Test report for taped litz wire |
| Spec: 0.1mm*127 |
insulation material: PI |
thermal rating: 180 class |
| Item |
Single wire diameter(mm) |
Conductor diameter(mm) |
O.D.(mm) |
Resistance(Ω/m) |
Dielectric strength(v) |
Pitch(mm) |
No.of strand |
Overlap% |
| Tech reuquirement |
0.107-0.125 |
0.10±0.003 |
≤2.02 |
≤0.01874 |
≥6000 |
27±3 |
127 |
≥50 |
| 1 |
0.110-0.114 |
0.098-0.10 |
1.42-1.52 |
0.01694 |
12000 |
27 |
127 |
52 |
At present, the diameter of the single wire of the litz wire we produce is 0.03 to 1.0 mm, the number of strands is 2 to 7000, and the maximum finished outer diameter is 12 mm. The thermal rating of individual wire is 155 degrees, and 180 degrees. The type of insulation film is polyurethane, and the materials are polyester film (PET), PTFE film (F4) and polyimide film( PI).
The thermal rating of PET reaches 155 degrees, the thermal rating of PI film is up to 180 degrees, and the colors are divided into natural color and gold color. The overlap ratio of the taped lit wire can reach up to 75%, and the breakdown voltage is above 7000V.
5G base station power supply
EV Charging Stations
Industrial Motor
Maglev Trains
Medical Electronics
Wind Turbines
Founded in 2002, Ruiyuan has been in the manufacture of enamelled copper wire for 20 years.We combine the best manufacturing techniques and enamel materials to create a high-quality, best-in-class enameled wire. The enameled copper wire lies at the heart of technology we use every day – appliances, generators, transformers, turbines, coils and much more. Nowadays, Ruiyuan has the global footprint to support our partners in marketplace.
Ruiyuan attracts many outstanding technical and management talents, and our founders have built the best team in the industry with our long-term vision. We respects the values of each employee and provides them with a platform to make Ruiyuan a great place to grow a career.
