Earth Rod
Driven earth electrode for pole mounted equipment and substation earthing
Product Overview
The earth rod is the electrode that gives fault and surge current a path into the ground. Everything upstream of it - the arrester, the protection scheme, the touch voltage calculation - assumes an earth resistance that only the electrode and the soil around it can actually deliver, which is why the rod is worth specifying rather than picking up as an afterthought.
Key Benefits
- Provides the earth electrode the protection scheme is designed around
- Driven installation suited to pole and substation positions
- Supplied with the pole line fittings on the same order
- Ordered in project quantities against an earthing schedule
Problems It Solves
- Measured earth resistance too high for the protection design
- Surge arresters connected through long looping earth leads
- Earthing material left off the pole line material order
Application Scenarios
- Earthing at pole mounted transformer positions
- Surge arrester earth connections
- Substation earth electrode systems
- Adding electrodes where measured earth resistance is too high
Who It Is For
- Line construction contractors
- Earthing and testing contractors
- Distribution utilities
- EPC companies delivering substation packages
Technical Features
- Driven earth electrode
- Used with pole mounted equipment and substation earthing
- Connected by the shortest practical earth lead
- Supplied with pole line hardware
Specifications
| Product Family | Iron Fitting |
|---|---|
| Function | Driven earth electrode |
| Application | Pole mounted equipment and substation earthing |
| Finish | Hot dip galvanised pole line hardware |
| Length and Diameter | Confirmed against your earthing design at quotation |
Materials
- Steel rod with protective finish
Manufacturing Process
- Rod forming
- Hot dip galvanising
- Dimensional check
- Bundled packing for export
Customisation Options
- Lengths and diameters quoted against your earthing design
- Project quantities priced against an earthing schedule
- Supplied with the clamps and connection hardware
Compared With Other Options
| Earth mat or plate | A mat suits positions where soil conditions make driving a rod ineffective. A driven rod is the standard distribution solution where the soil permits it. |
|---|---|
| Multiple shorter rods | Where a single rod cannot reach the required resistance, multiple electrodes are used. The design decides, not the hardware. |
Use Guide
- Drive to the depth the earthing design requires, not to the first resistance reading that looks acceptable
- Keep the earth lead short and direct - a long looping lead adds impedance the arrester cannot compensate for
- Measure the installed earth resistance and record it
- Protect the galvanised surface from damage during driving
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Earth Rod Questions
What length of earth rod do I need
It comes from the earthing design and the soil conditions. Send the design requirement or the measured resistance you are trying to achieve.
Why does earth lead length matter
The protective margin at the equipment depends on the arrester residual voltage plus the inductive drop along the lead. A long lead quietly reduces the protection.
Can rods be supplied with the connection clamps
Yes - they go on the same line list as the rest of the pole line fittings.
Get a Price on Earth Rod
Send the quantity, the specification you are matching and the destination port.