Transformer Winding Wrapped Insulated Nomex Paper Covered Wire Rectangular Aluminum Wire

• Customization: Available
• Type: Insulated
• Conductor Type: Solid
• Model NO.: Insulated Nomex Paper Covered Rectangular Aluminu
• Application: Oil-Immersed Transformer Windings
• Conductor Material: Aluminum
• Sheath Material: No
• Insulation Material: Kraft Paper/Nomex Paper
• Material Shape: Rectangle
• Range of Application: Oil-Immersed Transformer Windings
• Certification: ISO9001, RoHS, UL
• Brand: Lp Industry
• Transport Package: 30-Kg~150kg Ply-Wood Spool[250*500/250*600]
• Specification: round: 2.0-7.0; flat: a: 1-10, b: 3-35
• Trademark: LP
• Origin: China
• HS Code: 854419
• Production Capacity: 180000tons/Year

Product Description

 

Product Description

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.

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

Paper Covered Round Wire Insulation Thickness
Standard Insulation Thickness(mm)	0.3	0.45	0.80	1.20	1.80	4.25
Tolerance(mm)	±0.05	±0.05	±0.10	±0.12	±0.15	±0.30

Paper Covered Flat Wire Insulation Thickness
Standard Insulation Thickness(mm)	0.45	0.60	0.95	1.35	1.60	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)	0.40	0.53	0.85	1.20	1.45	1.80	2.30	2.75

 

Main Features

 

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 papers each applied in one of the 

Application

Paper-insulated wire, also known as paper-covered wire, is widely used in electrical and industrial fields due to its unique insulation properties and durability. Key applications include:

1. Transformers: Paper-insulated wire is commonly employed in transformer windings. Its layered paper insulation provides excellent dielectric strength, making it suitable for high-voltage applications.

2. Electric Motors: In motors requiring high thermal resistance, paper-insulated windings help prevent short circuits and enhance operational stability.

3. Inductors and Coils: The wire's insulation stability at elevated temperatures makes it ideal for inductors in power electronics and telecommunications equipment.

4. Vintage Electrical Systems: Older industrial machinery or restoration projects often use paper-insulated wires to maintain authenticity and compatibility.

5. High-Temperature Environments: Its resistance to thermal degradation allows use in applications like furnace wiring or heavy-duty industrial equipment.

6. Power Distribution: Historically, paper-insulated cables were used in underground power distribution systems due to moisture resistance and mechanical robustness.

 

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Certifications

LP Industry leverages proprietary core patented technologies and UL, CE international certifications to deliver industry-benchmark product portfolios, solidifying Chinese intelligent manufacturing excellence.

Certification Credibility -  ISO/CE/UL/ROHS standards

 

Packaging & Shipping

Innerpacking:  PT-25/PT-30/PT-60/PT-90/PT-200/250mm*400mm/250mm*500mm/250mm* 600mm
Wire roll: plastic spool or  wooden spool

 

Company Profile

Founded in 1993, Zhengzhou LP Industry Co., Ltd. is headquartered in the largest transportation center city Zhengzhou,Henan in China. After the development of over 30 years, now LP Industry has become the biggest magnet wire manufacturer in North China with an annual output of over 100,000 tons. The company occupies an area of 200,000 square meters,employs over 350 staff members, including 50 in management team and is with a total asset value of 800,000,000RMB. Equipped with imported manufacturing facilities from Italy and France, LP comprehensively performs ISO 9001 and ISO 14001 management systems. All products comply with IEC, JIS, NEMA and GB standards, and main items are UL certified too. 

Since its inception, LP Industry has specialized in the R&D and production of magnet winding wires, being one of the 8 designated magnet wire suppliers for domestic transformer industry, which is certified by China Machinery Industry Federation and the State Grid, and participating in the national magnet wire standards making.LP Industry takes the 3C Electrolytic copper panel and aluminum rod of high quality from Jiangxi, Chile and China Aluminum Corporation as the raw material, integrating the art: smelting -- rolling -- extruding -- drawing -- enameling and spooling in strict control to keep the quality of magnet wire stable and consistent. The company insists on the value "Quality Comes First", and performs inspection on raw material, semi-finished products and finished products in 100%. Before shipment, we will carry out sampling inspection again and build traceable quality record. Taking the advantage of perfect quality and complete sales channel, LP Industry has established long-term partnership with famous brands all 

over the world , Siemens, the State Grid and TBEA etc., ranking top in the industry all the time. 

Devoting itself to meeting customers' evolving demands, LP Industry will continuously fight for researching, developing and providing world-class magnet wires for the industries including transformers, motors, motor and new energy vehicles etc.

Our Advantages

1. Our professional expertise and vast experience make customers purchase most wanted products at lowest prices
2. Customer- oriented online service from specialists can settle the after-sales issues instantly
3. One-stop solution package can minimize procurement workload, overall purchase costing and international trade risk of customers
4. The corporation running for decades of years guarantee constant strength of responsiblity fulfilment

 

FAQ

[Q]: How about your company's annual production capacity?
 A : Our Company's annual production is about 18,000 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]: Could you provide the free samples? 
 A : Yes, We could provide the free sampels within 0.5kg. You only need undertake the express charnges.
 
[Q]: What's the price of your enameled aluminum wire?
 A : Please sent an email, our salesman will reply you as soon as possible.