Understanding 4 AWG Cable
UM 4 AWG cable is a standard conductor size defined by the American Wire Gauge (AWG) system. It is widely used in electrical systems due to its balance between conductivity, resistência mecânica, and installation flexibility.
Key parameters of 4 AWG cable:
- Cross-sectional area: approximately 21.1 mm²
- Diâmetro do condutor: about 5.2 milímetros
- Typical ampacity: 85–95 A (depending on insulation and installation conditions)
This size is commonly applied in both low voltage and medium voltage systems with different structural designs.
Conductor Materials for 4 AWG Cable
Condutor de cobre
- High electrical conductivity
- Excellent flexibility
- Better performance in demanding environments
Condutor de Alumínio
- Leve
- Econômico
- Suitable for large-scale installations
Low Voltage 4 AWG Cable Structure (0.6/1kV)
Low voltage 4 AWG cable is commonly used in residential, comercial, and industrial applications.
Condutor
- Copper or aluminum
- Solid or stranded
Isolamento
Typical materials:
- PVC
- XLPE
Funções:
- Isolamento elétrico
- Heat resistance
Preenchimento (para cabos multicondutores)
- Mantém a forma do cabo
- Improves mechanical stability
Inner Sheath (Roupa de cama)
- Provides structural support
- Protects internal layers
Blindagem (Opcional)
Steel Tape Armor (STA)
- Suitable for light mechanical protection
Armadura de fio de aço (SWA)
- Suitable for heavy-duty underground use
Bainha Externa
- PVC ou PE
- Protection against moisture, abrasão, e produtos químicos
Medium Voltage 4 AWG Cable Structure (5kV/11kV/15kV/20kV/33kV/35kV)
Medium voltage 4 AWG cable has a more complex design to control electrical stress and ensure safety.
Condutor
- Stranded copper or aluminum
- Compact construction
Tela do condutor (Semiconductive Layer)
- Ensures smooth electric field distribution
- Prevents partial discharge
Isolamento
Materiais:
- XLPE
- RPE
Características:
- Alta rigidez dielétrica
- Thermal stability
Tela de isolamento
- Works with conductor screen
- Maintains uniform electric field
Metallic Screen
- Copper tape or wires
Funções:
- Grounding
- Fault current path
Water Blocking Layer (Opcional)
- Water-swellable tape
- Gel compounds
Used in:
- Underground or submarine environments
Inner Sheath
- Separates metallic screen from armor
Blindagem
Armadura de fio de aço (SWA)
- Provides high mechanical strength
Armadura de fio de alumínio (AWA)
- Used in specific environments
Bainha Externa
- EDUCAÇAO FISICA, PEAD, ou PVC
- Resistant to UV, moisture, e produtos químicos
Electrical Differences Between LV and MV 4 AWG Cable
Classificação de tensão
- Low voltage: 0.6/1kV
- Medium voltage: 5kV–35kV
Sistema de Isolamento
- Lv: Basic insulation (PVC/XLPE)
- MV: Advanced insulation with semiconductive layers
Shielding
- Lv: Not required
- MV: Mandatory
Structural Complexity
- Lv: Simple
- MV: Multi-layer engineered design
Applications of 4 AWG Cable
Low Voltage Applications
- Building wiring
- Power distribution panels
- Solar energy systems
- Equipment connections
Medium Voltage Applications
- Power distribution networks
- Subestações
- Plantas industriais
- Renewable energy systems
Selection Considerations for 4 AWG Cable
Electrical Requirements
- Load current
- Nível de tensão
Installation Conditions
- Indoor or outdoor
- Underground or aerial
Proteção Mecânica
- Need for armoring
- Environmental exposure
Desempenho térmico
- Temperatura operacional
- Insulation type
DOS CABLE – Fabricante y proveedor
Dois cabos es un fabricante y proveedor profesional especializado en soluciones de cables de baja y media tensión, incluyendo una amplia gama de 4 AWG cable para diferentes aplicaciones industriales y de energía.
La empresa ofrece:
- Diseño personalizado según requisitos del proyecto
- Producción conforme a normas IEC, IEEE y estándares internacionales
- Opciones completas en cables LV y MV con diferentes estructuras
- Estricto control de calidad y alto rendimiento eléctrico
Con experiencia en proyectos internacionales, Dois cabos suministra cables confiables, duraderos y adaptados a entornos exigentes como instalaciones industriales, subterráneas y submarinas.