Solar cables are a crucial component of photovoltaic (PV) systems, directly impacting system efficiency, stability, and safety. Proper maintenance ensures extended service life, prevents failures, and reduces repair costs.

1. Regular Inspection

1. Visual Check: Inspect for cracks, discoloration, aging, or surface damage, especially at bends, connectors, and areas exposed to direct sunlight.

2. Connection Check: Ensure all terminals and connectors are tight, free of corrosion or oxidation to maintain reliable electrical contact.

3. Insulation Resistance Test: Measure insulation resistance periodically using a megohmmeter to confirm the cable’s insulation integrity.

2. Cleaning

• Keep the cable surface clean by removing dust, dirt, or debris that may lead to insulation degradation or local discharge.

• Avoid using corrosive chemicals that may damage the cable sheath during cleaning.

3. Mechanical Protection

• Prevent the cable from being crushed, pulled, or stepped on during maintenance or construction work.

• Ensure proper routing to avoid contact with sharp edges or heat sources that can cause mechanical or thermal damage.

4. Proper Routing

• Allow adequate cable slack to avoid tension or stretching.

• Maintain the minimum bending radius to prevent conductor breakage or insulation cracking.

5. Lightning and Grounding Protection

• Ensure the PV system is properly grounded to protect the cables from lightning strikes or surge damage.

• Regularly check grounding and lightning protection devices to confirm their effectiveness.

6. Timely Replacement

• Replace cables showing severe aging, cracks, insulation degradation, or any abnormal conditions to avoid electrical hazards.

Summary

✅ Regular Inspection
✅ Keep Clean
✅ Avoid Mechanical Stress
✅ Proper Cable Routing
✅ Ensure Lightning & Grounding Protection
✅ Timely Replacement

Proper maintenance guarantees safe, stable, and efficient operation of your solar power system, securing the future of clean energy