Special Equipment Testing

Cables Testing

Specialized Testing Services:

1. Tan Delta Testing (VLF / Power Frequency):

   • Measures insulation dissipation factor (tan δ) to detect aging, moisture, or contamination.

   • Identifies weak points before failure occurs.

2. Partial Discharge Testing (Offline and Online):

   • Detects localized insulation defects and corona activity.

   • Helps identify high-risk sections of cable networks proactively.

3. VLF Withstand Testing:

   • Applies Very Low Frequency (VLF) voltage to validate insulation strength.

   • Confirms cable integrity and readiness for service.

4. Sheath Integrity and Sheath Resistance Testing:

   • Verifies continuity and resistance of metallic sheaths or screens.

   • Detects corrosion, damage, or breaches that could compromise performance.

5. Insulation Resistance Testing:

   • Measures overall insulation resistance between conductors and earth.

   • Ensures safe operation under rated voltage and environmental conditions.

Benefits of Specialized Testing:

• Early detection of insulation deterioration, partial discharges, and sheath defects

• Reduces risk of unexpected cable failures and outages

• Supports commissioning, preventive maintenance, and condition-based monitoring

• Enhances operational reliability and safety

High-voltage power cables are vital for the safe and efficient transmission of electrical energy across substations, industrial plants, and utility networks. Ensuring the integrity of cable insulation, terminations, and joints is critical to prevent faults, outages, and costly system downtime. Specialized testing services provide precise diagnostics of cable condition, insulation health, and potential defects, supporting predictive maintenance and safe operation.