Power Cables manufacturer-Zhongdong

How to Choose a Power Cable? – 6 Key Factors

Selecting the right power cable is critical for project safety, efficiency, and
long-term reliability. Focus on these six technical aspects:

1. Voltage Rating (Uo/U)
Match the cable’s rated voltage to your system’s requirements. Common
standards: IEC 60502 (LV/MV), IEEE 404 (HV).

2. Conductor Material

Copper: Higher conductivity, stronger, compact

Aluminum: Lighter, lower cost, needs larger cross-section

3. Insulation Type

XLPE: High dielectric strength, low loss, 90°C continuous rating

EPR: Flexible, excellent water/chemical resistance

TR-XLPE: Water tree retardant for wet environments

4. Armor Type

SWA: High tensile & crush strength – ideal for direct burial

AWA: Non-magnetic, lightweight – for single-core AC cables

STA: Compact, cost-effective – for three-core fixed installations

5. Sheath Material

PVC: Durable, low cost, good chemical resistance

LSZH: Low smoke, halogen-free – for public & confined spaces

6. Certification & Standards
Ensure compliance with local requirements:

IEC (international)

BS (UK & Commonwealth)

UL / ANSI / ICEA / AEIC (North America)

Choose wisely – the right cable ensures safety, efficiency, and long-term
reliability.