Oil Test Termination
CTT 10(B) Oil Test Termination System
Type: Barrel-type oil-filled termination for factory and field testing
Key Electrical Parameters
| Test Type | Rating | Duration |
|---|---|---|
| AC Withstand Voltage | 40 kV | 30 minutes |
| Partial Discharge | <2 pC at 22 kV | Per IEC 60270 |
Mechanical Configuration
Cable Compatibility
Core Diameter: 60 mm
Voltage Class: 10 kV
Core Quantity: Three-core configuration
Semiconductor Strip Length: ~15 mm
Dimensions
Insulation Cup: Ø150×300 mm (L)
Base Plate: 660×220 mm (Slope-type)
Dielectric Medium Options
Primary Insulation: High-grade mineral oil (IEC 60296 Class I)
Alternative: Freon TE (For low-temperature applications)
Note: Oil level must maintain 25mm minimum above cable entry
Installation Requirements
Prepare cable ends with 15±1mm semiconductor stripping
Ensure oil temperature between 10°C-40°C before testing
Verify base plate levelness (≤2° inclination)
Pressurize oil column to 1.2× operating pressure for leak test
Compliance Standards
AC testing per IEC 60502-2
Partial discharge meets IEC 60885-3
Oil quality standards: IEC 60296/60422
