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How to Choose the right Power Cable
How to Choose the right Power Cable
Selecting a suitable power cable is critical to guarantee electrical safety and stable operation. Improper cable choice may result in overheating, voltage drop or even fire risks. Follow these key points to make the right decision.
1. Confirm your application environment
Different scenarios require different cable types.
- Indoor home wiring: BV, BVR single-core wires
- Building & industrial power supply: YJV XLPE power cables
- Underground direct burial: YJV22 armored cables
- Public buildings, subways: LSZH low smoke zero halogen cables

2. Pick proper conductor material
Oxygen-free copper is the most popular option thanks to low resistance and long service life. Aluminum cables cost less but are prone to oxidation, mainly for temporary projects.
Choose solid conductors for fixed installation, and stranded conductors if frequent bending is needed.

3. Determine core quantity and cross-section
The cross-sectional area (mm²) decides current carrying capacity. Larger loads require thicker cables.
Reserve extra capacity for potential future upgrades. Match core numbers according to single-phase or three-phase power systems.
4. Insulation & sheath selection
- PVC: Economical, widely used for regular wiring, max working temperature 70℃
- XLPE: Heat resistant up to 90℃, ideal for heavy-load engineering
- Armor structure offers anti-pressure protection for outdoor buried use
5. Check rated voltage and certifications
Common grades: 450/750V for household wires; 0.6/1kV for power cables.
Qualified cables should meet IEC or GB standards with valid certificates such as CE and RoHS.
Final Tip
How to Choose the right Power Cable
https://www.casncables.com/power-cables-c261175/
Never prioritize low price over quality. Substandard cables with undersized conductors bring huge hidden dangers.
If you have inquiries about cable specifications or bulk orders, contact our team for professional support.
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