LQ-810 Ground Continuity Tester: Ensuring Power Equipment Grounding Integrity

The LQ-810 Ground Continuity Tester is a precision instrument designed to verify the electrical connectivity between power equipment and grounding networks. With its 10A continuous current output and 1mΩ resolution, it effectively detects oxidation, corrosion, and fractures in grounding systems—critical for preventing equipment failure and ensuring safety compliance.

Technical parameter

Why Ground Continuity Testing Matters

Common grounding system failures include:

• Oxidation at connection points (increases resistance up to 1000%)

• Underground corrosion of grounding electrodes

• Fractures caused by vibration/aging

The LQ-810 addresses these issues by:

• Breaking through oxide layers with sustained 10A current (vs. pulse methods)

• Detecting milliohm-level changes indicating early degradation

• Complying with DL/T475-2006 power industry standards

Key Features

1. Superior Measurement Technology

• 10A continuous current: Penetrates oxidation films for true resistance readings

• 1mΩ resolution: Detects minute changes in connectivity

• ±1 digit stability: Reliable readings even in electrically noisy substations

2. Industrial Durability

• Military-grade connectors withstand vibration/shock

• Temperature-compensated resistors maintain accuracy (-20°C to 50°C)

• IP54-rated casing for field use

3. Operational Efficiency

• One-button operation with 3.5-digit LED display

• 50% faster than traditional multimeter methods

• 2kg lightweight design for handheld use

Typical Use Cases:

• Annual substation grounding grid inspections

• Pre-commissioning checks for new power equipment

• Troubleshooting ground faults in industrial plants

Technical Specifications

• Test Current: 10A DC (continuous)

• Measurement Range: 0-2000mΩ

• Accuracy: ±(1%+2 digits)

• Power Supply: Li-ion battery (8hr continuous operation)

Includes 5-year connector warranty and calibration certification traceable to NIST.