Crepe Paper Insulated Rectangular Copper Conductor
ISO-CU-KRP-F105
CROSS-SECTION & LAYERS
Paper Insulated Wires
The core and insulation layers are shown to scale as a representation; refer to the datasheet for exact thickness and tolerance values.
APPLICATIONS
Where Is This Product Used?
The gold area in the scenes shows where the conductor sits in the machine.
ALSO Transformer lead-outs
Tap-changer connections
Tight-radius winding transitions
Busbar connection insulation
Product Description
Crepe paper is cellulosic paper given micro-folds by controlled creping during production. This structure gives the paper the ability to stretch; when the conductor is bent, the paper conforms to the geometry without tearing. This property is decisive in tight-radius transitions where flat kraft paper cracks.
Its application area is especially the lead-outs of transformer windings, tap-changer connections and the sections where the conductor changes direction. Within the same winding, straight sections are insulated with kraft and transition sections with crepe paper, providing both economy and reliability.
Crepe papers comply with the electrical-purpose cellulosic paper requirements under IEC 60554. Their oil-absorption ability is higher than flat paper; this shortens impregnation time and makes it easier to fill the voids within the insulation.
Applications
Transformer lead-outs, tap-changer connections, tight-radius winding transitions, busbar connection insulation.
Related Products
Kraft Paper Covered Rectangular Aluminium Conductor
ISO-AL-KRF-F105
Crepe Paper Insulated Round Copper Conductor
ISO-CU-KRP-R105
Dennison Paper Covered Rectangular Copper Conductor
ISO-CU-DNS-F105Technical Documentation
| Conductor Material | Electrolytic Copper (Cu-ETP, 99.9%) |
| Standard | IEC 60554 |
| Conductor Size | 2 – 12.5 mm |
| Thickness / Grade | 0.80 – 4.00 mm |
| Surface | Annealed |
| Product Code | ISO-CU-KRP-F105 |
| Thermal Class | Class 105 (A) |
| Build Increase | 0.80 – 4.00 mm |
| Conductor Section | 1.50 – 49.00 mm² |
| Insulation Type | Crepe (wrinkled) cellulosic paper |
| Winding Type | Helical paper winding, 50% overlap |
| Test Certificate | EN 10204 3.1 |
| Elongation Ability | 25% and above in paper (depending on crepe ratio) |
Crepe Paper Insulation Structure
| Winding Layer | Tape Width (mm) | Overlap Ratio (%) | Total Build Increase (mm) | Thermal Class |
|---|---|---|---|---|
| 2 layers crepe paper | 20 | 50 | 0.30 | Class 105 (A) |
| 4 layers crepe paper | 20 | 50 | 0.60 | Class 105 (A) |
| 6 layers crepe paper | 25 | 50 | 0.90 | Class 105 (A) |
| 8 layers crepe paper | 25 | 50 | 1.20 | Class 105 (A) |
Our Crepe Paper Insulated Rectangular Copper Conductor product is supplied in accordance with internationally accepted manufacturing and inspection standards. Dimensional tolerances, material chemical analysis and mechanical values meet the requirements of the relevant standard.
- Manufacturing standard: IEC 60554
- Conductor material: Electrolytic Copper (Cu-ETP, 99.9%)
- Thermal class: Class 105 (A)
- Wall thickness: 0.80 – 4.00 mm
- Diameter range: 2 – 12.5 mm
- Visual inspection and dimensional control are carried out before shipment.
If your project requires a different standard, you can consult our technical team for alternative products.
On request, the products we supply are shipped together with an EN 10204 3.1 material certificate. Our quality management system and product documents are updated regularly; batch-based traceability is provided.
Communicating your certificate request at the quotation stage speeds up the shipment process.
ISO 9001:2015 Quality Management System
ISO 14001 Environmental Management System
ISO 45001 Occupational Health and Safety Management System
EN 10204 3.1 Material Certificate
IEC 60317 Declaration of Conformity
IATF 16949 Automotive Quality Management System
REACH Declaration of Conformity
RoHS Declaration of Conformity
Note: The values in the datasheet are nominal. For requests outside the standards and dimensions above, reach us through the quote form; non-catalogue dimensions are planned according to the production schedule.