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Portable 220KV 25mm2 Grounding Lead Copper Grounding Jumper for Overhead Line Safety
Product Details:
| Place of Origin: | Ningbo, Zhejiang, China |
| Brand Name: | Suntech |
| Certification: | ISO 9001:2015 |
| Model Number: | Grounding |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 Set |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Export-grade plywood case with steel strapping and moisture-proof lining |
| Delivery Time: | 3-7 working days for production |
| Payment Terms: | T/T,L/C |
| Supply Ability: | 3000 Sets per Month |
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Detail Information |
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| Product Name: | Grounding Lead | Voltage Class: | 220 KV |
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| Copper Cross Section: | 25 Mm2 | Insulating Length: | 2100 Mm |
| Handheld Length: | 900 Mm | Total Length: | 3000 Mm |
| Conductor: | Stranded Soft Copper | Warranty: | 1 Year |
| Highlight: | Portable Grounding Lead,220KV Grounding Jumper,25mm2 Grounding Cable |
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Product Description
Portable Grounding Lead 220KV — Temporary Grounding for Overhead Lines and Substation Equipment
The Suntech portable grounding lead is a purpose-built safety jumper that connects a de-energised conductor to a verified ground point through a low-impedance path. Supplied with 25mm² flexible copper and an insulated operating rod, it is the final protective step before work begins on isolated high-voltage equipment.
Field-Tested Safety Hardware
These grounding leads are made in southeast China, the country’s earliest power-tool manufacturing region, and are used daily by substation and overhead-line crews. Working with those teams shaped the design: fine-stranded copper that stays flexible in cold weather, a high-visibility jacket that survives abrasion on site, and insulated rods long enough to keep the operator clear of the conductor during attachment.
Why the Grounding Lead Matters
A grounding lead holds de-energised equipment at zero potential, so if the line is accidentally re-energised, fault and induced currents are diverted safely to earth instead of through a person. The stranded copper construction provides the low-impedance path required by lock-out/tag-out and personal protective grounding procedures.
Technical Specifications
| Voltage Class | Ground Soft Copper Wire (mm²) | Ground Operation Rod (mm) | Insulating (mm) | Handheld (mm) | Total Length (mm) |
|---|---|---|---|---|---|
| 10KV | 25 | 1×3+7 ~ 1.5×3+20 | 700 | 300 | 1000 |
| 35KV | 25 | 1.5×3+18 | 900 | 600 | 1500 |
| 68KV | 25 | 1.5×3+20 | 1000 | 600 | 1600 |
| 110KV | 25, 35 | 2×3+20 | 1300 | 700 | 2000 |
| 220KV | 25, 35 | 3×3+25 | 2100 | 900 | 3000 |
| 330KV | 35, 50 | 4×3+25 | 3000 | 1100 | 4100 |
| 500KV | 35, 50 | 13×3 ~ 20×3 | 4100 | 1400 | 5500 |
Testing and Quality Control
Every grounding lead is inspected and electrically tested before packing. We check copper strand integrity, clamp contact and insulation condition on each unit, and production follows ISO 9001 quality procedures. Leads can be supplied as single units or as three-phase plus neutral kits.
Standards, Warranty and Support
Grounding leads are built to support OSHA and NFPA 70E electrical-safety programmes, and ship with an inspection and maintenance guide. A 12-month warranty covers manufacturing defects, and our team advises on voltage class, copper size and kit configuration in English, Spanish and Chinese.
Where It Works Best
- Substation and switchyard maintenance grounding
- Overhead transmission and distribution line work
- Lock-out/tag-out and personal protective grounding
- Equipotential bonding of metallic structures
- High-voltage test equipment preparation
Choosing the Right Lead
Match the voltage class to the system you are working on — the insulating and total length grow with voltage to keep the operator at a safe distance. For 220KV work the standard configuration uses 25–35mm² copper with a 3000mm total length. Tell us your system voltage and kit format, and we will confirm the right build.
Frequently Asked Questions
What copper size do I need? 25mm² covers most 10–220KV applications, with 35–50mm² for 330–500KV and higher fault currents.
Are kits available? Yes. Leads are supplied individually or as three-phase plus neutral grounding kits.
How should they be maintained? Inspect before each use and follow the included guide for periodic high-current testing.
Request a Quotation
Send us your system voltage, copper size and kit format. We will reply with a recommended configuration, lead time and shipping options. Contact our team for a factory-direct quotation today.
