Heavy-Duty Power Cables: Why Modern Industry Relies on AVVG 4x240 and APvP 1x240

Designing electrical infrastructure for heavy industrial complexes, manufacturing plants, regional substations, and large-scale data facilities demands rigorous conductor sizing. At these scales, operating currents regularly exceed hundreds of amperes, requiring robust materials engineered to prevent thermal degradation and power disruptions.

In modern engineering specifications across Central Asia, two specific 240 mm² cable configurations represent the benchmark for bulk power transmission: AVVG 4x240 (along with flame-retardant AVVGng 4x240) and medium-voltage APvP 1x240 (XLPE-insulated). While sharing an identical 240 mm² aluminum conductor area, they serve distinct voltage domains and engineering roles.

1. AVVG 4x240: The Workhorse of Low-Voltage Distribution (0.4–1 kV)

AVVG 4x240 is a multi-core industrial cable composed of four solid or compacted sector-shaped aluminum conductors encased in PVC insulation and an outer PVC sheath.

Operating Voltage: 0.66 kV and 1.0 kV AC.
Current-Carrying Capacity: Safely carries continuous loads of approximately 390–410 A in ambient air and up to 450–470 A when installed underground in trenches.

Target Applications:
Feeder lines linking step-down distribution transformers (10/0.4 kV) to facility Main Switchboards (MSB);
High-power intra-plant sub-distribution runs;
Feeding heavy rotating machinery, high-volume chiller arrays, and commercial pump stations.

Cost Efficiency: Choosing aluminum AVVGng 4x240 over equivalent copper options (such as VVGng 4x240) delivers up to a 60–75% reduction in conductor capital expenditures without sacrificing electrical reliability when proper termination hardware is applied.

2. APvP 1x240: Cross-Linked Polyethylene (XLPE) for 10–35 kV Mains

Operating at a much higher voltage tier, APvP 1x240 is engineered for medium- and high-voltage transmission grids (6 kV, 10 kV, 20 kV, 35 kV) utilizing advanced cross-linked polyethylene (XLPE) insulation.

XLPE Performance Advantages: Cross-linking transforms standard polyethylene into a thermoset polymer, increasing permissible continuous conductor operating temperatures to 90°C (compared to 70°C for PVC and impregnated paper cables) and emergency short-circuit tolerances up to 250°C.
Cable Architecture: Single-core design (1x240 mm²) featuring semi-conductive conductor and insulation shields, a concentrated copper wire screen to dissipate ground fault currents, and an exterior high-density polyethylene protective jacket.

Target Applications:
Primary feeder runs connecting utility substations (110/10 kV) to industrial intake substations;
Underground distribution rings for industrial zones and major infrastructure hubs;
Interconnection lines for solar farms and wind generation parks feeding the national transmission grid.

Structural Flexibility: Free from fluid-based insulating compounds (unlike legacy paper-insulated lead cables like ASB or SB), APvP can be deployed on complex vertical runs and hilly terrains without risk of compound migration.

Technical Specification Comparison

AVVG / AVVGng 4x240 Profile:
Voltage Classification: 0.4 – 1.0 kV (Low Voltage secondary distribution).
Dielectric Material: Standard PVC compound.
Conductor Assembly: 4 cores (3 Phase + Neutral) within a common outer jacket.
Continuous Thermal Limit: Up to 70°C under steady operation.
Application Scope: Secondary delivery from local transformers to switchboards and industrial machinery.

APvP 1x240 Profile:
Voltage Classification: 6, 10, 20, 35 kV (Medium to High Voltage mains).
Dielectric Material: Cross-Linked Polyethylene (XLPE).
Conductor Assembly: Single-core assembly with grounded metallic copper wire screen.
Continuous Thermal Limit: Up to 90°C (withstand up to 130°C during emergency overload).
Application Scope: Primary power transmission from regional utility substations to plant intake transformers.

Secure Dependable Power Cable Supplies for Your Infrastructure

Hayat Kabel produces fully certified heavy-duty power cables compliant with stringent GOST and IEC manufacturing specifications: AVVG, AVVGng (4x16 to 4x240 mm²) and XLPE insulated APvP / APvPu series.

Direct factory wholesale pricing;
Complete compliance certification and comprehensive test documentation;
Central warehouse inventory in Tashkent with coordinated dispatch throughout Uzbekistan.

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