Solid-core wire is as straight and rigid as a steel reinforcing bar; a large cross-sectional area of the copper conductor is its defining characteristic:
Efficient Installation: It resists bending and deformation during straight-line routing, significantly boosting the efficiency of wire pulling through conduits.
Excellent Heat Dissipation: Its solid structure ensures uniform heat conduction, making it ideal for high-current applications.
Cost-Effective: For a given cross-sectional area, the material cost is approximately 15% lower than that of stranded wire.
The Flexible Appeal of Stranded Wire
Stranded wire is composed of fine copper strands woven together, exhibiting a unique flexibility:
Effortless Conduit Pulling: It can easily navigate complex wiring routes involving six or more right-angle bends.
High Fatigue Resistance: In environments subject to high-frequency vibration, its service life is three times longer than that of solid-core wire.
Tight Contact: The fine copper strands effectively fill the voids within wiring terminals, ensuring a secure connection.
Choosing Based on Application Scenarios
Different areas within a home present distinct wiring requirements:
In-Wall Main Lines: Prioritize solid-core wire to leverage its stability and cost advantages.
Lighting Fixture Connections: Stranded wire is the superior choice, as it facilitates easy adjustment of lamp head angles.
Appliance Outlets: Use solid-core wire for high-power appliances, and opt for stranded wire for low-power devices.
Underfloor Heating Controls: The bend-resistant properties of stranded wire make it better suited for wiring thermostats and control units.