What is Copper Clad Steel Grounding Rod and Why Do We Use Them?

10 Mar.,2025

 

What Is a Copper Ground Rod Used For? These 3 Vital Tasks

What is a copper ground rod used for?

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These rods are essential components of grounding systems. They provide protection from dangerous situations such as lightning strikes. They do this by dissipating electrical energy so it flows harmlessly into the ground.

As a result, there is less risk of electrical shock, excess voltage, fires and damage to equipment. 

In this article, we&#;ll answer questions related to what is a copper ground rod used for? and how it is needed for three important tasks. We&#;ll also examine proper installation and maintenance, as well as other materials that are also used for grounding rods.

What Is a Copper Grounding Rod Used For? 3 Essential Tasks

Dissipation of Electrical Surges

Copper ground rods play a crucial role in ensuring that electrical energy is properly redirected, something that is important l during electrical surges. 

By providing a seamless, low-resistance path into the earth, the excess energy flows to the ground. This protects everything from sensitive electronics to extensive operations. It&#;s also a critical component in fire prevention and personal safety. 

Lightning Strike Protection

Copper ground rods provide lightning protection through the low-resistance pathway we mentioned earlier. If these rods are well-designed and installed correctly, the grounding system reduces the chance of lightning arcing within buildings. 

Ground Fault Current Pathway

Copper ground rods establish a safe path for fault currents in electrical systems. A ground fault occurs when an unintended electrical connection is made between a live conductor and a grounded surface. 

Grounding prevents electrical shock, fires, and even explosions. 

Some situations where ground faults could occur include:

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  • Appliance Malfunctions: If your appliance malfunctions, fault currents can enter the system..
  • Wiring Issues: Damaged or deteriorated wiring can create unwanted connections.  

By properly grounding your equipment, you protect it from fault currents, which are safely and efficiently redirected from volatile areas. 

Installation and Maintenance of Copper Ground Rods

But the importance of these devices goes far beyond what is a copper ground rod used for? Installing and maintaining copper ground rods properly is a step that cannot be overlooked, and is imperative to ensure that your grounding system stands the test of time. 

Maintenance and Galvanization

To maintain the longevity of copper ground rods:

  • Inspect Regularly: Be sure to inspect the connections and rods themselves. Be on the lookout for any signs of corrosion or damage.
  • Corrosion Prevention: While copper is naturally corrosion-resistant, galvanization takes this protection a step further, which is necessary in areas with high humidity.
  • Clean Connections: Ensure the connections are free from dirt or debris. This prevents effective conductivity. 

What Is a Copper Ground Rod Used for and What Are the Advantages of Copper?

We&#;ve briefly reviewed some of the main uses for copper grounding rods, but what are the distinct advantages? Some of these include:

  • Conductivity: Cooper&#;s conductive powers are one of its greatest benefits, ensuring electrical surges and currents are dissipated efficiently. 
  • Corrosion Resistance: Did you know that copper creates a protective oxide layer naturally? If you want an extra layer of protection, consider galvanization. 
  • Low Resistance Pathway: Grounding systems aren&#;t effective without a low-resistance pathway. Copper provides this benefit to provide safety. 

Other Materials That Can Be Used for Grounding Rods

While copper is widely used, alternative materials for ground rods include:

  • Galvanized Steel: Its conductivity may not be as good as copper, but galvanization still offers powerful corrosion resistances thanks to a zinc coating. 
  • Stainless Steel: This is a frequent choice in areas prone to corrosive conditions and high humidity. 
  • Copper-Clad Steel: Combining &#;the best of both worlds,&#; this combines steel&#;s strength with copper&#;s conductivity. 
  • Solid Stainless Steel: In areas of high mechanical stress, many choose the durability of solid stainless steel. 

Why Use Copper Ground Rods?

What Do Copper Ground Rods Protect and What Is a Copper Ground Rod Used For?

The primary purpose of a grounding rod is to protect people and equipment by providing a low-resistance pathway so electrical currents can flow directly to the ground. Benefits include:

  • Safety: Reducing the risk of electrical shock.
  • Surge Protection: Dissipating lightning-voltage surges is fundamental to protect equipment.
  • Fault Current Diversion: Again, the low-resistance pathway can effectively redirect electrical currents to provide comprehensive protection. 

&#;Is a Grounding Rod Necessary?&#;

Yes, grounding rods provide safe paths for electrical currents. They are key components in protecting electrical equipment and preventing fires. Without them there is substantial risk of serious injury.

&#;Does a Ground Rod Need to Be Copper?&#;

While other materials can be used for ground rods, copper is often preferred. This is due to its remarkable corrosion resistance and excellent conductivity. Copper&#;s natural resistance to corrosion, along with the option of galvanization, contributes to the longevity and effectiveness of the grounding system.

Trust Your Safety to Southern Grounding: We Stand By Our Products

When safeguarding your electrical systems, quality is only part of the equation. When dealing with power surges and lightning, grounding is vital for safety and property protection. Don&#;t compromise on the foundation of your electrical system.

Are you interested in learning more about Graphite Wire? Contact us today to secure an expert consultation!

What is the point of using a copper "bonded" grounding rod?

I've been reading up on UL 467 and grounding rods. To be UL listed a rod must have 10mils of copper--that is very thin.

Does the 10mils of copper get scraped off the steel when the rod is pushed into the ground?

How long does it take galvanic corrosion to remove the 10mils of copper from the rod? Doesn't that defeat the purpose of the rod in a few years?

I notice there are solid copper rods and copper coated rods. What do you tend to use and why? I use whatever, the ground rod doesn't really do much anyway so who cares.

I imagine how long a rod lasts is going to vary a lot between different soils.

I've never seen a solid copper rod. I'm not saying they don't exist by they must be very uncommon.
I've been reading up on UL 467 and grounding rods. To be UL listed a rod must have 10mils of copper--that is very thin.

Does the 10mils of copper get scraped off the steel when the rod is pushed into the ground?

How long does it take galvanic corrosion to remove the 10mils of copper from the rod? Doesn't that defeat the purpose of the rod in a few years?

I notice there are solid copper rods and copper coated rods. What do you tend to use and why?
I moved an office trailer one time that had been there for like 10 years. I pulled the ground rods out with a forklift. They looked fine. I reused them at the new site.
If there are no other electrodes in the scenario there will need to be two rods unless your EC has the equipment to prove 25 ohms to earth for a single rod. Note an ohm meter will not do it.
In one of my really old textbooks, the test was to connect the ground rod to one of the 110v hot leads and see what amperage fuse it could blow
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Does the 10mils of copper get scraped off the steel when the rod is pushed into the ground?

Not in my experience. Sometimes I've had to pull a rod out after a couple feet for a different try. If the soil is soft enough to do that, there's no meaningful damage.
How long does it take galvanic corrosion to remove the 10mils of copper from the rod? Doesn't that defeat the purpose of the rod in a few years?
Unknown but if the copper layer oxidizes it's still the interface between the steel and the earth. Would the oxidized copper layer be less conductive than the earth itself? Not sure it makes a meaningful difference.

I notice there are solid copper rods and copper coated rods. What do you tend to use and why?
I use a listed rod because it's relatively easy to get and passes inspection.