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Bare Copper Grounding Lead for Low Resistance Permanent Grounding Connections in Power Installations
Product Details:
| Place of Origin: | Ningbo |
| Brand Name: | Suntech |
| Certification: | ISO |
| Model Number: | 500KV |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 PCS |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Plywood Case |
| Delivery Time: | 3-7days |
| Payment Terms: | L/C,T/T |
| Supply Ability: | 300 PCS/Month |
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Detail Information |
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| Name: | Grounding Lead | Voltage Class: | 10-500KV |
|---|---|---|---|
| Ground Solt Copper Wire: | 25mm2 | Total Length: | 1000-5500mm |
Product Description
Bare Copper Grounding Lead for Low Resistance Permanent Grounding Connections in Power Installations
| Voltage class | Ground soft copper wire |
Length of Ground Operation Rod (mm) |
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| (mm2) | (m) | ||||
| Insulating | Handheld | Total length | |||
| 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 | 9*3 | 1300 | 700 | 2000 |
| 2*3+20 | |||||
| 220KV | 25,35 | 9*3 | 2100 | 900 | 3000 |
| 3*3+25 | |||||
| 330KV | 35,50 | 12*3 4*3+25 | 3000 | 1100 | 4100 |
| 500KV | 35,50 | 13*3~20*3 | 4100 | 1400 | 5500 |
| 220-500KV Overhead ground wire | 25 | 1*3+7~1.5*3+20 | 700 | 300 | 1000 |
| High pressure test equipment | 35,50 | 5*3~10*3 | 700 | 300 | 1000 |
The Grounding Lead, also commonly referred to as a grounding conductor or earthing jumper, is a fundamental safety component in any electrical installation. It serves as the critical physical connection between electrical equipment, metallic enclosures, or system neutral points and the earth grounding electrode system. Its primary purpose is to provide a permanent, low-resistance path for fault currents and static electricity to safely dissipate into the ground, thereby preventing dangerous voltage buildup, ensuring protective devices operate correctly, and safeguarding both personnel and equipment from electric shock and fire hazards. Constructed from high-conductivity materials and engineered for durability, a proper grounding lead is not an accessory but an essential requirement for a safe and compliant electrical system, forming the silent, vigilant backbone of electrical safety in power generation, transmission, distribution, and industrial applications.
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Essential for Personnel and Equipment Safety: The core function of a grounding lead is life safety. By providing a dedicated, low-impedance path to earth, it ensures that in the event of a fault—such as a live conductor contacting equipment casing—the resulting dangerous current is immediately diverted safely into the ground. This rapid diversion trips circuit breakers or fuses and prevents the metal enclosures from becoming energized, protecting anyone who might touch them from severe electrical shock.
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Ensures Effective Operation of Protective Devices: Circuit breakers and fuses rely on a substantial surge of fault current to trigger and disconnect a faulty circuit. A high-quality grounding lead with minimal resistance is crucial to allowing sufficient fault current to flow instantaneously. Without this robust path, the protective device may not operate promptly, leaving the fault energized and creating an extreme fire and electrocution risk.
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Provides Stability for Electrical System Reference: The grounding system establishes a common reference point (earth potential) for the entire electrical installation. The grounding lead connects system neutrals and equipment frames to this stable reference, which helps prevent unstable voltages, reduces electrical noise, and ensures the reliable operation of sensitive electronic equipment and control systems.
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Dissipates Lightning and Surge Currents: In addition to fault currents, grounding leads are a key part of the path for lightning strike energy and voltage surges from the grid to be safely directed into the earth. This protects transformers, switchgear, and other expensive assets from catastrophic damage caused by these high-energy transient events.
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Constructed for High Conductivity and Durability: Grounding leads are typically made from high-purity, high-conductivity copper or copper-clad steel. This ensures the lowest possible electrical resistance over the connection's lifetime. They are designed to be robust, resistant to physical damage, and often feature corrosion-resistant coatings or are made from materials like tinned copper for use in corrosive environments.
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Flexibility for Easy Installation and Routing: Many grounding leads are stranded rather than solid, providing the flexibility needed to route them neatly within equipment cabinets, around obstacles, and down to ground rods or mats. This flexibility makes installation easier and helps achieve clean, professional connections without putting stress on terminal points.
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Available in Insulated and Bare Versions: For runs where the conductor may be subject to physical damage or accidental contact with other circuits, insulated grounding leads with a durable jacket are used. In protected locations or for direct burial, bare conductors are often employed. The choice depends on the specific application and installation code requirements.
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Facilitates Maintenance and Testing: A properly installed grounding lead with accessible connection points allows for regular testing of the ground resistance using specialized meters. This is vital for preventative maintenance, ensuring the grounding system's integrity has not degraded over time due to corrosion or loose connections.
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Mandatory for Code Compliance and Insurance: The installation of a properly sized and correctly installed grounding lead is a non-negotiable requirement of all national and international electrical codes, such as the NEC and IEC standards. Compliance is not only a legal obligation but is also typically mandated by insurance providers to validate coverage for electrical installations.
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A Foundational Investment in System Integrity: Considering its critical role, the grounding lead is one of the most cost-effective investments in an electrical system. Selecting the correct type, size, and material for the application and installing it meticulously is a small upfront cost that prevents immense potential losses from equipment damage, operational downtime, fire, and most importantly, personal injury or loss of life.
In essence, the Grounding Lead is the silent guardian of an electrical system. It is a fundamental component that works continuously in the background, ensuring that when abnormal conditions occur, safety is never compromised. Never underestimate the importance of specifying and installing a high-quality grounding lead—it is the cornerstone of a safe electrical installation.
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