JDL Insulated Earthing Clamp
August 20, 2026
1. Product Materials
Clamp body, clamping plate, grounding ring: High-strength cast aluminum alloy, surface passivated for corrosion resistance
Fastening bolts, nuts, flat washers, and spring washers: Carbon steel, hot-dip galvanized
Outer insulating cover: Flame-retardant silicone rubber/modified engineering plastic, weather-resistant and anti-aging
2. Applicable Voltage
Rated Application: 10 kV overhead insulated distribution lines (≤12 kV) Applicable Cables: 10 kV overhead insulated aluminum conductors Standards: GB/T 2314, DL/T 765
⚠️For use only with insulated distribution line conductors; not suitable for bare conductors or high-voltage transmission lines
3. Model, Load, and Specification Parameters
Model Compatible Conductor Cross-Section Core Mechanical Load Parameters
JDL-16-120 16–120 mm² Bolt-clamped, low contact resistance; withstands short-circuit current surges; maintains continuous clamping without loosening
JDL-50-240 50–240 mm² Spanning clamp plate design, compatible with a wide range of wire diameters; Mechanical breaking load ≥ 5 kN
Key Performance Loads
Insulation sheath power-frequency withstand voltage: ≥ 18 kV/1 min without breakdown
Electrical Performance: Low contact resistance; capable of dissipating residual induced voltage and short-circuit fault currents in the line
Mechanical Performance: Designed for long-term outdoor operation; clamping structure resists loosening; resistant to low temperatures and UV aging
Functions: Attaching grounding wires during power outages for maintenance, line voltage testing, and fault discharge