Kraft Paper Covered Aluminum/ Copper Flat Wire

• Customization: Available
• Type: Insulated
• Conductor Type: Solid
• Model NO.: Kraft Paper Covered Aluminum/ Copper Flat Wire
• Application: Overhead, Heating, Underground
• Conductor Material: Copper or Aluminum, Aluminum
• Sheath Material: Nomex /Insulation Paper
• Insulation Material: Kraft Paper, Nomex Paper, 3m Paper, Telephone Cabl, Nomex /Insulation Paper
• Material Shape: Flat Wire
• Range of Application: Transformer and Power
• Certification: ISO9001, CE, CCC, RoHS
• Brand: Xincheng
• Name: Paper Covered Aluminum/Copper Wire
• Thermal Class: 105, 220c
• Shape: Round and Flat
• Kraft Paper Covered Rectangular Al Wire: (a)0.90mm-10.00mm, (B) 2.00-35.00mm
• Kraft Paper Covered Rectangular Copper W: (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
• Transport Package: Pallet
• Specification: KG
• Trademark: XINCHENG
• Origin: China

Product Description

Quick Details
Place of Origin: China                                  Brand Name: XINCHENG
Name: Paper Covered Aluminum/Copper Wire               Type: Insulated
Application: oil-immersed transformer windings              Thermal Class: 105,220C
Insulation Material: kraft Paper, NOMEX paper, 3M paper, Telephone cable paper / 3M,miki kraft paper, HPI-Green
Shape: round and flat                                   Conductor Type: Solid
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 :
Paper covered wire by Electrical Aluminum Pole extrusion die by a certain size or drawn wire after annealing, and then in the aluminum conductor wrapped more than two or two insulating paper (including paper, telephone, cable paper, high voltage cable paper, turn insulation paper) of the winding wire, suitable for oil-immersed transformers and other electrical winding with a similar wire. Produced by the extrusion process electrical bare aluminum wire is wrapped production of the cable wire is the best material.
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. Used for oil-immersed transformer.
Telephone Cable Paper covered aluminum wire is used in oil-immersed transformer and other similar electrical coil windings.
Paper wrapped wires are special materials, It is mainly used for oil immersed Transformer, Reactor, Generator and other electric devices.. The application temperature index after impregnation is 105°C. NOMEX wrapping materials whose temperature index is 200°C are used to produce dry type transformers, According to the requirements of users, it can apply phone print paper, cable paper, high tension cable paper, interturn insulation paper and Dane release paper, etc. and Dane release paper, etc.  
 
Telephone cable paper / 3M paper / MIKITOKU covered wire oil immersed transformer winding wire
Telephone cable paper covered aluminum wire, also known as plain paper covered insulated aluminum, according to customer requirements, in the aluminum conductor winding three or more layers of cable paper or telephone paper. Plain paper covered wire is oil immersed transformer coil and similar electrical coil of special material, after the immersion using temperature index of 105ºC. According to customer requirements, and can be divided into phone paper, cable paper, high voltage cable paper, paper and other winding insulation.
NOMEX Covered Rectangular/Flat Aluminum Wire:
NOMEX coated Aluminum wire produced by the flat and round, as aluminum are dissolved can be produced.
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.
 

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

 
Application of NOMEX Paper Covered Aluminum wire :
Mobile Transformer, Traction Transformers, Pole-mounted distribution transformers, Power substations, rectifiers, oil-immersed transformer coil winding.
Product classification:
As per Conductor Material: Copper , Aluminum
As per Inner Conductor: Paper wrapped bare  Conductor
Insulation thickness: Double paper covered (DPC) or Triple Paper Covered (TPC), According to Customer's requirements.       
 
Production Scope:
Conductor of Paper wrapped  wire:
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

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.
 
Insulation Materials:
Wrapping materials:  Power Cable Paper, High Density Insulation Paper, heat-resistant insulating paper, clupak paper, NOMEX 410, all kinds of self-adhesive paper and other special insulation materials
Telephone cable paper covered aluminum wire, also known as plain paper covered insulated aluminum, according to customer requirements, in the aluminum conductor winding three or more layers of cable paper or telephone paper. Plain paper covered wire is oil immersed transformer coil and similar electrical coil of special material, after the immersion using temperature index of 105ºC. According to customer requirements, and can be divided into phone paper, cable paper, high voltage cable paper, paper and other winding insulation.
 
Advantages Of Our Paper Covered Copper /Aluminum Wire:
1. 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.
2. Our Paper Covered Aluminum/ Copper Wire uses two layers or several layers as the insulation layer.
3. The wrapping direction of paper is same. And every layer paper twines conductors continually and compactly without wrinkles. 
4. Uses for oil-immersed transformers, reactors and other windings.
5. 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.

Product Tech Information :
Project Name	Standard	Test tool
Conductor size and R corner radius	Follow standard of GB/T7673.1-87	Micrometer and R type
Bend	The specimen is not cracked, no crack, no obvious sticking out of the paper according to the standard curve.	Experimental round rod and flat wire bending apparatus

 

Specification: (5.00*13.00 mm)
Test subject		Technical requirement		Test result
Appearance		Tightness, uniformity, smooth		Qualified
Size	a side	5.00mm+0.05mm		4.97mm
	b side	13.00mm+0.10mm		13.01mm
	Radius	1.00mm±25%		Qualified
	Film thickness	0.40-0.54 mm		0.47mm
Maximum A side size		5.59mm		5.45 mm
Wrapping	Overlapping	>2.0mm		3.0mm
	Gap	<  2.0mm		----
Elongation		>  17%		31%
Resilience		< 5º		----
Flexibility & adhesiveness		No crack, No rip		Qualified
Conductor resistance(20º C)		≤0.0004806 Ω/m		0.0004291Ω/m
Appraisal result		Qualified
Remark

 

Technical Parameters(AL) :
Test	Standard requirements
Specification	Round wire:Ø1.0 mm-Ø7.0 mm
	Flat wire:a side 0.90-10.0mm;b side 2.0-35.0mm
Resistivity	0.02785Ω.mm2/m
Breakdown voltage	1500V
Wrapped layer	6 times bare wire diameter, test rod paper cladding is not loose
Appearance	Wrap firmly, closely, evenly, without wrinkles
Packaging	Wood tray packaging, length can be customized

 
Wrapping method:
At present, there are mainly four wrapping methods adopted by users:
1. all gaps of the inner layer are wrapped, and the outer layer is overlapped
2. inner and outer two-layer stack package, intermediate gap package
3. all overlapping wrapping
4. outer two-layer inlay package and other gap packages
Our company can adjust the wrapping method according to the user's requirements. The paper layer can be wrapped in the same direction or in different directions.
Main Features:
1.Papers are applied with butt intercalation in the following manners : 
2 papers- double butt intercalation- advanced 40-60%. 
3 papers- triple butt intercalation-advance 28-38%.
 
Papers are lapped in the following manners : 
One Paper applied with 47-49% overlap-equivalent to 2 Papers.
One Paper applied with 64-66% overlap-equivalent to 3 Papers.
Two Telephone Cable Papers each applied in one of the above manners.
 Note: If the maximum dimensions do not exceed the maximum size conductor with the specified maximum insulation thickness, insulation thickness allowed to exceed the specified value.
 
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?
A: 1.Enameled round wire: 0.25mm-6.0mm
2. Enameled flat aluminum wire: a: 1-10mm, b: 2-22mm
         3. Enameled rectangular wire: Side(a): 1mm-10mm, Side(b): 2mm-16mm 
4. Kraft paper covered round (Al & Cu)wire: 1.0mm-7.0mm
5. Kraft paper covered rectangular AL wire: (a)0.90mm-10.00mm, (b) 2.00-35.00mm 
6. 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
        7. Fiberglass covered round wire:1.00mm-8.00mm
        8. Fiberglass covered rectangular (Al & Cu) wire: (a) 0.90mm-10.0mm,(b)2.00mm-22.00mm
  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?
 
 
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.
Port: Qingdao/Shanghai/Tianjin.
Please Contact Us:
 Miss: lydia
Mob: [phone]      Fax: [phone]