Power Cable Testing
500kV High Voltage Test Laboratory with EMI-Shielded Faraday Cage
Our specialized high voltage test facility provides ultra-low noise environments for precise partial discharge measurements (<2pC) on power transformers, arresters, switches, and XLPE cables up to 2000kV.
Shielded Hall Technical Specifications
Parameter | Specification |
---|---|
Dimensions | 120m(L) × 40m(W) × 39m(H) |
Attenuation Standard | MIL-STD-285, IEEE 299-1991 |
Partial Discharge Noise | <2.0pC |
Magnetic Field Attenuation | 60dB @10kHz → 80dB @100kHz |
Electric Field Attenuation | 80dB (1kHz-100kHz) |
Ground Resistance | <1.0Ω |
Insulation Resistance | >10kΩ |
Laboratory Components
Shielding System
Construction Types:
Bolted panel (spliced type) - For modular installation
Continuous weld (welded type) - For permanent facilities
Six-sided electromagnetic shielding
Roof: Full-length overlapping shielding plates
Access Systems
Main Shielded Door: 2-12m(H) × 1.5-10m(W) electric sliding
Personnel Door: 2m(H) × 1m(W)
Cable Transport: 10-100t capacity vehicle
Standard Layout Configurations
Cable Type | Faraday Cage | Control Room |
---|---|---|
35kV XLPE | 8.0×5.0×4.5m | 4.0×3.0×2.8m |
110kV XLPE | 15.0×10.0×6.0m | 3.0×2.5×2.8m |
220kV XLPE | 20.0×12.0×8.0m | 4.0×3.0×2.8m |
500kV XLPE | 30.0×25.0×15.0m | 6.0×3.0×2.8m |
750kV XLPE | 60.0×40.0×28.0m | 8.0×4.0×3.0m |
Support Systems
Ventilation: Filtered air exchange system
Lighting: EMI-protected fixtures
Power Distribution: Shielded penetration panels
Grounding: Multi-point star network
Testing Capabilities
Equipment Testing
Power transformers
Instrument transformers
Lightning arresters
Test Types
Partial discharge measurement
AC withstand voltage
Impulse testing
Custom Laboratory Solutions
We design shielded halls to your exact requirements:
Voltage class specialization (100kV-2000kV+)
Equipment-specific layouts
Modular expansion capability
Integration with existing facilities