The Bus Bar Ground Clamp establishes secure connections between bus bars and grounding systems in electrical installations by providing a low-resistance path to ground for safely channeling fault currents. Commonly deployed in substations and high-voltage environments, it ensures reliable electrical connections and enhances system safety.
The clamp features durable construction for longevity in demanding applications and supports easy installation, often requiring only one tool for setup. High fault current ratings enable handling of significant electrical loads during fault conditions. Material composition typically involves aluminum or aluminum alloys, with some variants using stainless steel for added corrosion resistance, while anodized aluminum hardware withstands environmental factors.
Technical specifications include fault current ratings such as 68 kA with specific X/R ratios and continuous current handling up to 400 amperes. The clamp accommodates bus bar sizes from square configurations up to 4 inches by 4 inches or round buses with outer diameters up to 4.5 inches. Jaw types vary between smooth or serrated surfaces for reliable contact, and American Society for Testing and Materials (ASTM) grades like 5H or 7H indicate compliance with standardized fault endurance testing protocols.
Application scenarios primarily include substations and outdoor electrical installations rated up to 230 kV, where the clamp grounds various bus bar shapes including round, square, rectangular, or H-section configurations. Its corrosion-resistant properties suit outdoor use when aligned with environmental conditions.
Bus Bar Ground Clamp Supplier: Optimizing Your Grounding Solutions
RaxPower’s design philosophy is to maximize the utility of our grounding clamps. All our universal clamps, including the Bus Bar Ground Clamp, were designed specifically to withstand asymmetric faults, ensuring safety and reliability in demanding applications.
Each clamp is manufactured to the latest ASTM F855 standard and has been tested at independent laboratories per ASTM F855. Leveraging our 21 years of expertise and advanced hot forging technology, we ensure superior strength, accurate sizing, and consistent performance through strict quality control and multi-stage testing.
Universal design elements allow the clamp to be used on:
- conductor
- round bus bar
- grounding studs
- grounding ball studs
One clamp covers multiple customer needs, eliminating the need to purchase and maintain an assortment of clamps, thus optimizing inventory and reducing costs.
Key features include:
- a wide profile for secure seating during fault events
- a strong H-frame body for durability
- a high-quality electrical interface proven through rigorous testing
Our commitment to innovation and quality, backed by automated manufacturing and thorough inspections, guarantees reliable products that meet industry standards.
Use the buttons below to get a quote on your grounding & jumper needs.
| Parameter | Specification |
|---|---|
| Material | Aluminum or Aluminum Alloy, with stainless steel variants for corrosion resistance |
| Jaw Type | Smooth or Serrated |
| ASTM Grade | 5H or 7H |
| Continuous Current | 400 A |
| Fault Current Rating | 68 kA with X/R ratios (e.g., X/R=30) |
| Voltage Rating | 230 kV |
| Bus Bar Size Range | Up to 4″ x 4″ square or 4.5″ OD round; compatible with round, square, rectangular, H-section configurations |
| Jumper Cable Range | #2 to 4/0 Grounding Cable |
| Recommended Torque | 300 in-lbs |
| Weight | 5 lbs |
| Installation Method | U-bolts or threaded studs for secure connection |
| Test Duration | 15 cycles |
Frequently Asked Questions (FAQS)
What is a bus bar ground clamp?
A bus bar ground clamp is an essential component for grounding electrical systems, used to connect grounding wires to a bus bar. It ensures a reliable electrical connection by providing a low-resistance path to ground, safely channeling fault currents to protect systems from damage and reduce the risk of electric shock.
What materials and construction features are used in bus bar ground clamps?
Bus bar ground clamps are typically made from durable materials such as aluminum or stainless steel, which enhance longevity and performance in high-current applications. Some models feature aluminum alloy construction with anodized hardware for corrosion resistance, and options include smooth or serrated jaws for secure connections.
What sizes and configurations do bus bar ground clamps support?
What electrical ratings should I consider for a bus bar ground clamp?
Key electrical ratings include continuous current (e.g., 400 amps) and fault current ratings (e.g., 43 kA for 15 cycles or 30 kA for 30 cycles, with some models rated up to 68 kA). Specifications may cover first cycle current peak, last cycle, and test duration, so select a clamp that matches your system's load and safety standards.
How do I install a bus bar ground clamp?
To install a bus bar ground clamp, first ensure the power is off. Position the clamp onto the bus bar for a secure and tight fit, then connect the grounding wire and tighten it firmly using the provided hardware. Finally, verify the connection with a grounding tester to ensure optimal conductivity and safety.
How do I select the right bus bar ground clamp for my application?
Consider factors such as the bus bar size, current ratings, environmental conditions, and compatibility with your electrical system. Ensure the clamp can handle the required electrical load safely and fits the bus configuration. For outdoor use, verify that the product is designed with corrosion-resistant materials suitable for your specific environment.
What certifications and testing standards do RaxPower bus bar ground clamps meet?
RaxPower bus bar ground clamps are manufactured to meet ASTM standards, such as Grade 5 or Grade 7H, and are tested for high fault current ratings—for example, up to 68 kA with test durations of 15 cycles. Strict quality control measures, including multi-stage testing and automation, ensure consistent performance and reliability for electric utility companies seeking certified hardware.
Does RaxPower offer customization options for bus bar ground clamps?
Yes, RaxPower offers custom sizes and configurations to accommodate various bus bar dimensions, including square, round, or rectangular shapes, ensuring an optimal fit for your installation needs. This flexibility addresses the requirements of EPC contractors and distributors for tailored solutions in large-scale projects.
What makes RaxPower clamps suitable for outdoor and high-voltage applications?
RaxPower's bus bar ground clamps are constructed from corrosion-resistant materials and are rated for outdoor use, with applications in high-voltage environments up to 230 kV. Commonly used in substations, they offer durability and reliability for renewable energy, railway, and telecommunication projects in demanding conditions.
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