PV solar connectorSolar Power System
1217YORO Solar: Unparalleled expertise in solar power systems and components. Offering high-quality photovoltaic wiring solutions with a 30-year warranty.
View detailsEffective Maintenance of Solar Cables: Daily Checks & Annual Upkeep
Effective Maintenance of Solar Cables: Daily Checks & Annual Upkeep
1. Routine Maintenance
- Inspection of Cable Arrangement: Ensure cables are orderly arranged, free from mechanical damage, and that signage is complete, accurate, and clear.
- Ceramic Sleeve Examination: Regularly inspect the ceramic sleeve of cable terminals for any damage, cracks, dirt, and discharge.
- Connection Reliability: Verify the reliability of cable terminal connections and check for any signs of overheating or looseness.
- Terminal Condition Monitoring: Regularly monitor cable terminals for any oil leaks, adhesive leaks, breakages, or burn marks.
2. Annual Maintenance
- Preventive Testing: Conduct preventive tests as per the stipulated requirements to ensure the longevity and functionality of the cables.
- Cable Trench Inspection: Regularly remove dust and inspect cable trenches and wells for debris, water accumulation, and structural integrity.
- Defect Resolution: Address and rectify any defects identified during the routine and annual maintenance checks to maintain optimal cable performance.
3. Inspection after the operation
| Check item | Check location | Inspection standards | Detection method |
| Cable phase sequence | cable terminator | Comply with the wiring sequence before the operation | Visual, Manual |
| Legacy | On-site | All tools and utensils are collected and counted, and the work surface is clean and hygienic | Visual, Manual |
| Connection part | Cable connector | The connection is tight, the appearance is good, and the wiring is correct. | Visual, Manual |
Overheating Due to Loose Cable Ends:
Procedure: Isolate the relevant equipment and implement organizational and technical measures to ensure safety. Discharge the cables before operation.
Solution: Depending on the location of overheating, re-tighten connections, re-wrap the insulation, or remake the cable head.
Flashover Due to Pollution on Cable Termination Porcelain Sleeve:
Procedure: Isolate the faulty equipment and implement safety measures. Clean and descale the affected porcelain sleeve and observe after testing power transmission.
Solution: If cleaning doesn’t resolve cracks on the meter body, replace it with qualified spare parts.
Low Cable Insulation Resistance:
Procedure: Measure the insulation as per regulations and compare with historical data. If the difference is minor, resume operation but intensify inspections.
Solution: If there’s a significant difference compared to historical data, conduct a DC withstand voltage test to confirm the insulation condition.
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