Earth rod clamps interconnect earth rods of various sizes with stranded cables and flat conductors in grounding and lightning protection systems, providing solderless connections for effective electrical grounding paths. High resistance to corrosion and strong mechanical properties ensure long life spans and durable connections, maintaining secure joints under environmental and mechanical stresses.
The clamp body typically uses high copper alloy or pure copper, while U-bolts and fixings may be copper, bronze, or stainless steel. Stainless steel hex head bolts, nuts, and washers provide additional corrosion resistance and mechanical integrity. Several variants exist: G-type clamps connect earth rods to stranded cables, A-type clamps join rods to copper tape, and U-bolt clamps attach tapes and cables to rods or rebar. Other options include split connector clamps, tower clamps, parallel groove clamps, and rebar clamps.
Clamping ranges accommodate rod diameters from 14.2 mm to 25 mm and conductor sizes from 16 mm² to 300 mm² for stranded cables, with flat tape dimensions like 25 mm x 3 mm. Tightening torque values range from 12 Nm to 20 Nm. The clamps carry lightning currents with waveforms such as 10/350 μs and withstand static mechanical stress in outdoor, indoor, buried, or concrete-embedded installations.
Compliance with International Electrotechnical Commission (IEC), EN, and BS EN 62561-1 standards includes Class N or Class H classifications, with some models carrying UL approval or Canadian Standards Association (CSA) certification. Installation involves non-permanent screwing or bolting connections, with vibration-proof or anti-loosening elements available for connection integrity.
Earth Rod Clamp Wholesaler with Over 20 Years of Expertise
RaxPower is China’s leading manufacturer of Earth Rod to Tape Clamps, with over 20 years of specialized experience in the industry.
Our Earth Rod Clamps are designed to provide secure and reliable grounding for electrical systems, featuring high corrosion resistance and mechanical strength for long-lasting, durable connections.
Manufactured using high-quality materials such as brass, bronze, and stainless steel, and advanced technologies like hot forging for superior strength and precise sizing, these clamps ensure consistent performance in diverse environments.
They are suitable for a wide range of applications, including power distribution systems, telecommunications, and industrial facilities, and are available in various sizes to meet specific customer requirements.
Committed to our philosophy of integrity-based, cooperation created, people oriented, and win-win cooperation, we implement strict quality control measures from raw material selection through multi-stage testing, including load and gauge tests, with all products reviewed twice before packing and certified to meet industry standards such as BS 7430 and IEC/BS EN 62561-1.
Contact us today to learn more about our products and how we can meet your grounding needs.
| Parameter | Value |
|---|---|
| Clamp Type | Various types including G-type (rod to stranded cable), A-type (rod to flat tape), U-bolt (tape/cable to rod or rebar), split connector, tower, parallel groove, and rebar clamps |
| Material | High copper alloy or pure copper |
| Conductor Material | Copper |
| Earth Rod Material | Copper, copper bonded steel, stainless steel |
| Rod Diameter Range | 14.2 mm to 25 mm |
| Stranded Cable Conductor Size Range | 16 mm² to 300 mm² |
| Flat Tape Conductor Size | 25 mm x 3 mm |
| Clamp Fixings | Hex head bolt M10 or nut and washer M10 |
| Material of Clamp Fixings | Stainless steel, copper, or bronze |
| Tightening Torque | 12 Nm to 20 Nm |
| Dimensions (L x W x H) | Varies by model; examples: 25.5 mm x 24 mm x 44 mm to 88 mm x 35 mm x 72 mm |
| Standards | IEC, EN, BS EN 62561-1 |
| Classification | Class N or Class H |
| Lightning Current Carrying Capability | 10/350 μs waveform |
| Installation Location | Outdoors, indoors, buried in ground, embedded in concrete |
| Mechanical Behaviour | Intended to withstand static mechanical stress |
| Type of Connection | Non-permanent screwing or bolting |
| Assembly Instructions | Refer to instruction manual |
| Additional Notes | Phosphor bronze bolts available on request; suitable for direct burial; may include vibration-proof or anti-loosening elements; options for custom sizes and multiple conductor connections |
Frequently Asked Questions (FAQS)
What is the primary function of an Earth Rod Clamp?
Earth Rod Clamps interconnect various sizes of earth rods with stranded cables and flat conductors, ensuring a secure and lasting connection for grounding systems.
What materials are Earth Rod Clamps made from?
Earth Rod Clamps are made from high copper alloy, copper, silicon bronze, brass, or pure copper alloy, with clamp fixings in stainless steel or copper for corrosion resistance and durability.
Do Earth Rod Clamps comply with international standards?
Yes, they comply with IEC, EN, BS EN 62561-1, with classifications like Class N or Class H for lightning current carrying capability. Some models feature UL or CSA approvals.
Where can Earth Rod Clamps be installed?
They can be installed outdoors, indoors, buried in ground, or embedded in concrete and materials with thermal insulation, making them versatile for different grounding environments.
What clamping ranges and specifications are available?
Clamping ranges vary by model, accommodating earth rod diameters from 14.2 mm to 25 mm and cable cross-sections from 16 mm² to 300 mm². Installation involves non-permanent screwing or bolting, with recommended tightening torques typically ranging from 12 Nm to 20 Nm.
What features ensure the longevity and reliability of Earth Rod Clamps?
High resistance to corrosion, high mechanical strength to withstand static mechanical stress, and durable construction ensure long-lasting performance in harsh conditions and reliable grounding connections.
How do your earth rod clamps ensure long-term reliability for critical grid applications?
RaxPower employs strict quality control measures, including multi-stage testing and adherence to ISO 9001 standards, to guarantee reliability and full standards compliance for grid maintenance and expansion in demanding environments.
What customization options are available for OEM requirements?
We offer comprehensive OEM and ODM services, allowing customization in materials, sizes, and designs. Specific components like phosphor bronze bolts can be supplied upon request, ensuring perfectly consistent quality and significant cost savings while meeting the same high standards through rigorous quality control.
Can you handle large-volume orders and ensure on-time delivery?
With over 21 years of experience, RaxPower has 17,000 square meters of workshops and 5,000 square meters of warehouses to handle bulk supply for large-scale projects. Our automatic machines and efficient processes maintain uniform quality and meet delivery schedules through a robust supply chain.
What is your approach to competitive wholesale pricing for distributors?
We supply a broad catalog in various sizes and designs with low MOQs, ensuring distributors can stock popular products for their local markets. RaxPower achieves competitive wholesale prices through large-scale production and efficient manufacturing, providing high-quality products with good profit margins and reliable supply.
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