●Product description: Nomex wrapped wire is extruded or drawn from oxygen free copper rod or electrician round aluminum rod with certain specifications mould and then wrapped with T410 Nomex which is made by DuPont USA . It is widely applied in transformers, welding machines, electromagnets and other similar electrical  instruments.

                               

●Standard：GB/T7673.3-2008

●Production range：

Aluminum flat wire

Narrow side a:1.00mm—8.00mm

Wide side b:3.00mm—25.00mm

Copper flat wire

Narrow side a:0.90mm—5.60mm

Wide side b:2.00mm—16.00mm

Copper or aluminum round wire

Conductor diameter：φ1.7—φ6.0

If the specifications is out of the above range, please contact us

●Raw materials：

The resistivity of aluminum flat wire can not be more than 0.028010Ωmm2 / m in 20 ℃.

●The resistivity of copper flat wire can not be more than 0.017241Ωmm2 / m in 20 ℃.

NOMEX covered wire technical standards (enterprise standard)

NOMEX which our company use is made by DuPont USA T410 NOMEX. The thickness is 2mils. 

●Advantage of Nomex wrapped wire

Nomex’s electrical, chemical and mechanical properties are extremely high, and it’s elasticity, flexibility, anti-tearing, moisture resistance and wear resistance are very good. Moreover, it has the acid and alkali corrosion. And it is not easily destroyed by insects, molds and fungi. It has the compatibility with all kinds of varnish, adhesive, transformer liquid, lubricant and coolant. Meanwhile, Nomex has strong thermal resistance. Even if the temperature reaches 220℃, the insulation property is the same. Transformer with Nomex wrapped wire can bring clients a lot of economic, environmental and security benefits.

■lower cost, smaller size, lighter weight

The temper of transformer with Nomex insulation can rise up to 180℃ because the transformer needs fewer wires and ferrite cores and then it has smaller size and light weight, thus capital construction expense can be reduced. It is easy to install the transformer . Smaller ferrite core means reducing no-load loss.

■Reliability improvement

With Nomex wrapped wire, the electrical specification and the mechanical property are outstanding in the transformers’ entire service life. Nomex wrapped magnet wire is not easy to easy to be aging and has strong contraction and elasticity, therefore, it ensures that the transformer winding still maintains close and there is no crack. Nomex insulation paper is not sensitive to temperature, dust and thus improve the reliability of transformers.

■Increase of reserve capacity

Nomex’s thermal resistance is high, so even though the temperature reaches 220℃, the insulation property maintains the same. Rank C of 220℃takes the place of Rank of 180℃ during the design of transformer, so it may deal with the urgent load situation and the dilatation unexpectedly and can make backup plan greatly reduced.

■Good environmental performance

NOMEX is chemical stability, safety flame retardant, non-toxic, anti-radiation, even in the event of a fire it will not release toxic gases. It does not react with the solvent, and it is acid and alkali corrosion. After  the end of its service life, it is convenient recycling, the waste can be degraded, and will not cause environmental pollution. Nomex is an environmentally friendly high-tech products.