PRODUCT SHORT DESCRIPTION
JDL 50-240mm² earthing ring clamp kit with four-color voltage-test rings for HV/LV grounding and phase verification. Bolted, clearly color-coded, reusable line fitting.
PRODUCT DESCRIPTION
The JDL earthing ring clamp, also called a grounding test ring, is a small line fitting installed on overhead conductors to provide a dedicated attachment point for portable grounding sets and voltage-detector testing. The clamp wraps around the conductor and presents a closed ring or eye into which the grounding rod hook or voltage tester can be quickly engaged. The JDL range covers 50-240 mm² conductors and is supplied in four color-coded versions (typically red, yellow, green and blue) to identify phase and voltage level at a glance, helping crews work safely and efficiently on both high- and low-voltage lines.
Key Features
• Dedicated Grounding Point — Gives portable earth sets a secure, standardized ring to hook onto, eliminating improvised connections.
• Voltage-Test Ready — Closed ring accepts voltage-detector hooks for safe phase verification before grounding.
• Four-Color Coding — Color-coded rings identify phase and HV/LV status quickly from the ground or bucket.
• Wide Size Range — Fits 50-240 mm² ACSR and aluminum conductors.
• Strong Bolted Body — Rigid aluminum-alloy or ductile-iron body with bolts clamps firmly without conductor damage.
• Reusable Line Fitting — Stays installed on the line and can be used repeatedly for grounding and testing.
• Corrosion Resistant — Plated or galvanized hardware withstands long-term outdoor exposure.
• Standards-Based — Manufactured to power-fitting requirements for grounding and test accessories.
Specifications
• Model: JDL series 50-240
• Conductor range: 50-240 mm² ACSR / aluminum
• Colors: Four-color phase identification set
• Body: Aluminum alloy / ductile iron, plated
• Function: Earthing + voltage-test ring
• Hardware: Galvanized bolts and lock washers
• Type: Reusable overhead line fitting
Applications Installed on overhead HV and LV distribution conductors to provide safe, repeatable grounding and voltage-test points during maintenance and outage work.
Full-range materials for transmission and distribution line projects — from insulators and clamps to protection devices.
In-house R&D and production base supports custom specs, private labeling and packaging per your requirements.
Full-process export service — documentation, sea/air freight and door-to-door delivery to 30+ countries.