PVC Twincore Cables Boost Reliable Power Transmission

May 29, 2026

The glow of city lights at night, the hum of machinery in factories, and the operation of precision medical equipment all depend on stable and reliable power supply. The quality of power cables—the "blood vessels" of electricity transmission—directly impacts the safety and efficiency of entire power systems.

Product Overview

This series of PVC insulated twin-core power cables (model VV) are designed and manufactured in strict compliance with IEC60502 standards. Featuring high-quality copper conductors and PVC insulation materials, these cables deliver excellent electrical and mechanical performance for fixed installation in power transmission and distribution systems, particularly in tunnels, pipelines, and other environments where external mechanical forces are not a concern.

Key Features and Advantages

Superior Electrical Performance

Rated voltage: 600/1000V, suitable for both industrial and residential applications
Low conductor resistance: High-purity copper conductors minimize line losses and improve transmission efficiency (see technical parameters below)
Excellent insulation: Premium PVC insulation materials ensure reliable electrical insulation and voltage resistance

Reliable Mechanical Properties

Moderate flexibility: Facilitates installation in complex environments
Weather resistance: PVC sheathing protects against UV radiation and moisture
Flame retardant: Special PVC sheathing inhibits flame propagation

Precision Engineering

Twin-core design: Optimized for single-phase power systems
Conductor geometry: Round conductors (≤16mm²) for flexibility; sector-shaped conductors (≥35mm²) for space efficiency
Dual-layer protection: PVC insulation with flame-retardant PVC sheathing

Quality Assurance

Compliance with GB/T12706, IEC60502, and BS6346 international standards
Comprehensive quality control from raw materials to finished products

Technical Specifications

Cross-Section (mm²)	Conductor Structure (strands/diameter mm)	Avg. Diameter (mm)	Weight (kg/km)	Max. Conductor Resistance at 20°C (Ω/km)
2x1.5	1/1.38	12	186	12.1
2x2.5	1/1.76	12.8	225	7.41
2x4.0	7/0.85	15.2	324	4.61
2x6.0	7/1.04	16.2	390	3.08
2x10	7/1.35	18.2	531	1.83
2x16	7/1.7	20.0	699	1.15
2x25	10/1.83	17.2	679	0.727
2x35	14/1.83	18.8	887	0.524
2x50	19/1.83	21.5	1197	0.387
2x70	27/1.83	23.8	1606	0.268
2x95	37/1.83	27.4	2157	0.193
2x120	30/2.32	29.3	2689	0.153
2x150	37/2.32	32.4	3291	0.124
2x185	37/2.52	35.7	4002	0.0991
2x240	48/2.52	40.3	5122	0.0754
2x300	61/2.52	44.5	6430	0.0601
2x400	61/2.95	50.1	8634	0.0470

Additional Specifications

Rated temperature: 70°C
Model: VV
Standards: GB/T12706, IEC60502, BS6346

Installation and Maintenance

Professional installation following industry standards is recommended. Regular inspections should verify insulation integrity and physical condition to identify potential safety issues.

Storage and Handling

Cables should be stored in dry, ventilated areas away from direct sunlight and moisture. During transportation and installation, mechanical damage must be avoided, and bending radii should comply with technical specifications.

Contact Person :	Ms. Annie Chen
Tel :	+8613670012325
Fax :	86-755-81725188