What is CU/EPR/PVC/SWA/PVC Cable?
CU/EPR/PVC/SWA/PVC Cable is a high-performance power cable widely used in industrial, коммерциялық, and infrastructure applications. It is designed for durability, қауіпсіздік, and long-term operation in harsh environments.
The name represents its structure:
- CU: Copper conductor
- EPR: Ethylene Propylene Rubber EPR insulation
- ПВХ: Ішкі қабық
- SWA: Steel Wire Armour
- ПВХ: Сыртқы қабық
This combination provides excellent electrical conductivity, insulation reliability, and mechanical protection.
Structure of CU/EPR/PVC/SWA/PVC Cable
Copper Conductor (CU)
Copper is used because of its high conductivity and low resistance. It ensures efficient power transmission and reduces energy loss.
EPR Insulation
EPR insulation provides:
- High temperature resistance (up to 90°C)
- Excellent flexibility
- Strong resistance to moisture and chemicals
PVC Inner Sheath
The inner sheath protects the insulation and provides separation from the armour layer.
Steel Wire Armour (SWA)
SWA offers:
- Strong mechanical protection
- Resistance to external impact
- Suitability for underground installation
PVC Outer Sheath
The outer sheath protects against environmental conditions such as UV radiation, water, and abrasion.
CU/EPR/PVC/SWA/PVC Cable Size Range (1.5 mm² to 2500 мм², 18 AWG 1000 MCM)
Complete Size Conversion Table
| Metric Size (мм²) | AWG Size | MCM/kcmil | Typical Application |
|---|---|---|---|
| 1.5 | 18 AWG | — | Lighting circuits |
| 2.5 | 14 AWG | — | Residential wiring |
| 4 | 12 AWG | — | Small equipment |
| 6 | 10 AWG | — | Power outlets |
| 10 | 8 AWG | — | Small motors |
| 16 | 6 AWG | — | Distribution boards |
| 25 | 4 AWG | — | Industrial systems |
| 35 | 2 AWG | — | Heavy equipment |
| 50 | 1 AWG | — | Submain power |
| 70 | 2/0 AWG | 70 ккмил | Transformers |
| 95 | 3/0 AWG | 100 ккмил | Medium loads |
| 120 | 4/0 AWG | 125 ккмил | Power distribution |
| 150 | — | 150 ккмил | Industrial feeders |
| 185 | — | 200 ккмил | Heavy-duty loads |
| 240 | — | 250 ккмил | Substations |
| 300 | — | 300 ккмил | High capacity |
| 400 | — | 400 ккмил | Utility systems |
| 500 | — | 500 ккмил | Power plants |
| 630 | — | 600 ккмил | Large systems |
| 800 | — | 750 ккмил | Transmission |
| 1000 | — | 1000 ккмил | Grid connections |
| 1200 | — | — | Ultra heavy loads |
| 1600 | — | — | Specialized use |
| 2000 | — | — | High-capacity transmission |
| 2500 | — | — | Extra heavy systems |
Technical Characteristics of CU/EPR/PVC/SWA/PVC Cable
Voltage Ratings
- Low voltage: 0.6/1 кВ
- Medium voltage: up to 33 кВ
Temperature Ratings
- Normal operation: 90°C
- Short circuit: up to 250°C
Electrical Performance
The cable provides stable current transmission, low dielectric loss, and strong insulation performance under various environmental conditions.
Applications of CU/EPR/PVC/SWA/PVC Cable
Өнеркәсіптік қосымшалар
- Manufacturing plants
- Oil and gas facilities
- Chemical processing plants
Infrastructure Projects
- Underground power distribution
- Cable trenches and duct systems
- Renewable energy systems
Commercial Use
- Buildings and complexes
- Substations
- Data centers
Advantages of CU/EPR/PVC/SWA/PVC Cable
High Thermal Resistance
EPR insulation ensures reliable operation under high temperatures.
Excellent Mechanical Protection
Steel wire armour protects against physical damage and pressure.
Moisture and Chemical Resistance
The cable performs well in wet and corrosive environments.
Long Service Life
Durable materials ensure long-term performance with minimal maintenance.
Installation Methods
Underground Installation
- Direct burial
- Cable trenches
- Duct installations
Above Ground Installation
- Cable trays
- Ladder systems
- Conduits
How to Select CU/EPR/PVC/SWA/PVC Cable
Key Selection Factors
- Voltage level
- Load capacity
- Environmental conditions
- Installation method
Recommended Size Selection
- 1.5–10 mm²: small loads
- 16–120 mm²: medium loads
- 150–1000 mm²: heavy loads
- 1200–2500 mm²: ultra heavy loads
CU/EPR/PVC/SWA/PVC Cable Price Factors
Raw Material Cost
Copper price significantly affects cable cost.
Cable Size
Larger cross-sections require more materials and increase cost.
Armour and Protection
Steel wire armour adds mechanical strength but also increases price.
Frequently Asked Questions
What is the difference between EPR and XLPE cables?
EPR cables perform better in wet environments, while XLPE cables have slightly higher thermal limits.
Can CU/EPR/PVC/SWA/PVC Cable be used underground?
Yes, it is specifically designed for underground installation.
What is the maximum cable size?
Standard production ranges up to 2500 мм², depending on manufacturer capability.
CU/EPR/PVC/SWA/PVC Cable
CU/EPR/PVC/SWA/PVC Cable is a reliable and durable solution for power transmission in demanding environments. With a wide size range from 1.5 mm² to 2500 mm² and 18 AWG 1000 MCM, it meets diverse application needs.
Its combination of copper conductor, EPR insulation, and steel wire armour cable manufacturer ensures high performance, қауіпсіздік, and long service life, making it an ideal choice for industrial, коммерциялық, and infrastructure projects.