Kraft paper covered round (Al &Cu)wire: 1.0mm-7.0mm
Kraft paper covered rectangular AL wire: (a)0.90mm-10.00mm, (b) 2.00-35.00mm
Kraft paper covered rectangular Copper wire: (a)0.90mm-5.60mm, (b) 2.00-16.00mm
NOMEX paper covered rectangular wire: (a): 0.90mm-10.00mm Side(b): 2.00mm-16.00mm
Layer: Single, double, triple, multi-layers or according to your requirement
Conductor Material: Copper or Aluminum
Bobbin: 30kg/50kg/150kg wooden spool or according to customers requirement
Standard: IEC, NEMA, GB, JIS Certifications: SGS, UL, RoHS, ISO
Warranty: 1 year OEM & ODM: Accept
Product Instruction :
NOMEX Covered Rectangular/Flat Aluminum Wire：
Nomex Paper wrapped aluminum wire is a winding wire made of oxygen free copper rod or electrical round aluminum rod extruded by a standard mold and wrapped with t410 Nomex insulating paper produced by DuPont. It is mainly used for windings of transformers, welding machines, electromagnets or other similar electrical equipment. The electrical bare copper (aluminum) wire produced by extrusion process is an ideal material for producing Nomex Paper clad wire.
NOMEX covering corresponds to class H insulation is mainly used in the construction of condensers and capacitors. Main application of it is in shielding of cables in high temp. environment (200°C) such as dry type transformers, military and aerospace cables. NOMEX covered conductors are more effective in condition where temperature resistance and dielectric strength requirements are high.
By extrusion of bare aluminum wire wrapped and NOMEX Paper covered wire, the mechanical performance and electrical performance better, instead of making difficult composite enameled flat wire, suitable for transformer, winding of lifting electromagnet, electric welding machine and other products.
NOMEX Covered Copper /Aluminum Wire
Advantages of NOMEX Covered Copper /Aluminum Wire:
Because Nomex Paper has high electrical, chemical and mechanical integrity, good elasticity, flexibility, tear resistance, moisture resistance and wear resistance, and is very acid-base corrosion resistant, it will not be damaged by insects, molds and fungi. It can be compatible with all kinds of varnishes, adhesives, transformer liquids, lubricants and refrigerants. In addition, Nomex Paper has high heat resistance. Even if the temperature is as high as 220 ℃, it still maintains its original insulation performance, The transformer with Nomex Paper wrapped wire can bring a lot of economic, environmental and safety benefits to customers.
Reduce cost, size and weight
For transformers insulated with Nomex products, the temperature rise can be designed to 180 ℃, requiring less wires and iron cores, which can reduce the size and weight, thus reducing the capital construction cost and facilitating installation. A small iron core also means a small no-load loss;
Improve reliability
The transformer winding is wrapped with Nomex Paper, which maintains excellent electrical and mechanical properties during the whole service life of the transformer. The Nomex Paper has good shrinkage resistance, compression resistance, elasticity, good resistance to aging, and good resistance to thermal shock. Therefore, it can ensure that the transformer coil structure is compact and will not crack. In addition, the Nomex insulation paper is insensitive to temperature and dust, which improves the reliability of the transformer.
Increase standby capacity
Nomex Paper has a high heat-resistant temperature. Even when the temperature is as high as 220 ℃, it still retains its original insulation performance. In the design of the transformer, class C 220 ℃ insulation material is used as class H 180 ℃, which can cope with emergency overload load and unexpected capacity expansion, which can greatly reduce the backup plan.
Good environmental performance
Nomex insulation materials have stable chemical properties, are safe, flame retardant and radiation resistant, and will not release toxic gases even in case of fire; It does not react with solvents and is resistant to acid and alkali corrosion. When its service life ends, it is easy to recycle, resources can be reused, wastes can be degraded, and will not cause pollution to the environment. It is an environmental friendly high-tech product.
Paper Covered Aluminum/ Copper Wire is a special kind of magnet wires. Its conductors is oxygen-free copper rods or electrical round aluminum rods which squeeze and draw by the certain size of mold. And its insulations is special material.
Our Paper Covered Aluminum/ Copper Wire uses two layers or several layers as the insulation layer.
The wrapping direction of paper is same. And every layer paper twines conductors continually and compactly without wrinkles.
Uses for oil-immersed transformers, reactors and other windings.
Excellent resistance to abrasion and solvent.
6. Excellent electricity performance.
7. Excellent heat shock and flexibility.
8. High cut-through.
9. Resistance to high voltage in oil.
10. Rise up the filling coefficient of the transformer.
Materials
Insulation Materials:
Wrapping materials: NOMEX 410, all kinds of self-adhesive paper and other special insulation materials
Conductor Materials :
Conductor material is used according to GB/T5584 or DIN EN 13601. Cu-ETP or Cu-OF are used predominantly and if requested, can be delivered with increase strength.
Resistivity :Soft copper wire ≤ 0.017241Ω•mm²/m at 20°C, Soft aluminum wire ≤ 0.028000Ω•mm²/m at 20°C
Proof stress Rp0.2:soft < 100 N/ mm2,Semi-hard 100-300 N/ mm²,
The deviation of Proof stress Rp0.2 could be +0-20 N/ mm².
Conductor can be bare rectangle copper or enamel rectangle copper or bare rectangular aluminum
CPR1
Rp0.2 ≤ 180N/mm2
tolerance 0 +20%
CPR2
180 < Rp0.2 ≤ 220N/mm2
tolerance 0 +20%
CPR3
220 < Rp0.2 ≤ 260N/mm2
tolerance 0 +20%
Thickness of kraft paper wrapped round or rectangular wire should conform to the following table or mutual consultation between supply and demand requirements:
Kraft Paper Wrapped Round Wire Insulation Thickness Unit: mm
Conductor Nominal Diameter
1.00≤d≤7.00
Nominal Insulation Thickness
0.3
0.45
0.8
1.2
1.8
4.25
Deviation
±0.05
±0.05
±0.10
±0.12
±0.15
±0.30
Note: If thickness is between two specification, please take the deviation corresponding to large size.
Kraft Paper Wrapped Rectangular Wire Insulation Thickness Unit: mm
Nominal Insulation Thickness
0.45
0.6
0.95
1.35
1.6
1.95
2.45
2.95
Maximum Insulation Thickness (A-a)
0.57
0.74
1.14
1.56
1.84
2.23
2.77
3.32
Minimum Insulation Thickness(B-b)
0.4
0.53
0.85
1.2
1.45
1.8
2.3
2.75
Bending Standard of kraft paper wrapped Wire
Kraft Paper Wrapped Round Wire Unit: mm
Insulation Thickness
Experimental method
Rod Diameter
0.30≤σ≤0.80
Involution
100
1.20≤σ≤4.25
150
Kraft paper wrapped Rectangular wire Unit: mm
Insulation Thickness
Experimental method
Rod Diameter
0.30≤σ≤0.80
Broad Side Bending
150
1.20≤σ≤4.25
200
We could offer products of special requirements on conductor size, insulation layer thickness, or wire number of the composite.
Product Name
Wrapping method
Number of wrapping layers
Insulation thickness / mm
Breakdown voltage ≥
NOMEX Paper wrapped wire
Self locking lap joint 1.5~2mm
1
0.12±0.03
600V
Self locking lap joint 1.5~2mm
2
0.24±0.03
1500V
50%stacking
1
0.22±0.03
1200V
50%stacking
2
0.40±0.03
3000V
Lap 1.5mm in opposite direction and wrap
3
0.33±0.03
2500V
FAQ
Q : How about your company’s annual production capacity?
A : Our Company’s annual production is about 8,000 tons.
Q :What’s your company’s product scope?
A : We have many kinds of products ,such as enameled aluminum wire, enameled cooper wire, paper covered magnet wire, fiber glass
covered magnet wire and other aluminum/cooper magnet wire products. Q :What’s the temperature-resist grade of your enameled aluminum wire?
A : We produce the thermal class of enameled aluminum wire from 130 to 220 Centigrade.
Q: How many kind of spools size ?
A:PT4, PT10, PT15, PT25,PT30, PT35, PT60, PT90,PT200 wooden spools PT-500 and etc.
Q : What is specifications of enameled wire your company can produce?
Q : What’s the temperature-resist grade of your enameled wire?
A: We produce the thermal class of enameled wire from class130 to class220
Q : Could you provide the free samples? A : Yes, We could provide the free samples within 0.5kg. You only need undertake the express charges.
Q : What’s the price of your enameled aluminum wire? A : Please sent an email to our office 290395332@QQ.COM or call whatsapp /mobile 0086-13752439076, our salesman will reply you as soon as possible.
Packaging & Delivery
Packaging Details
Paper Covered Aluminum Wire Inner packing: in different wooden spool, such as 30/50/150kg wooden spool, or according to your wire diameters
Outer packing: wooden spool and and wooden case or according customers’ special requirement.
