The Ball Stud Ground Clamp connects securely to ball studs, providing a reliable electrical path to divert excess voltage to ground in industrial and utility settings. With high current ratings up to 43kA for 15 cycles and 30kA for 30 cycles, the clamp performs under demanding fault conditions. Compatible with standard 1-inch ball studs, its compact design fits restricted spaces such as trucks or confined equipment areas. Construction features threaded ferrules for cable attachment and ergonomic elements to reduce worker fatigue.
Applications include industrial metalclad gear, substations, distribution systems for overhead and underground lines, and truck-grounding systems where ball studs are permanently mounted on vehicle bodies. The clamp’s ball and socket system permits variable angle accessibility, allowing installation at various orientations to reach inaccessible areas. Some models feature double lead V-thread for faster installation, while built-in strain relief sleeves minimize cable damage and act as shock dampers during fault events.
Material composition typically involves bronze alloys or tin-plated copper for high conductivity and corrosion resistance, with stainless steel hardware ensuring secure fastening. Specifications include a threaded bore boss of 5/8″-11 Unified National Coarse (UNC) for ferrule attachment, with torque recommendations of 250 inch-pounds. Continuous current ratings reach up to 400 amperes, and the clamp adheres to American Society for Testing and Materials (ASTM) F855 and International Electrotechnical Commission (IEC) 61230 standards.
Ball Stud Ground Clamp Wholesaler with Over 21 Years of Experience
RaxPower design philosophy is to maximize the utility of our grounding clamps. With over 21 years of experience as a leading manufacturer in Hebei Province, China, we leverage advanced hot forging technology and strict quality control processes to ensure the Ball Stud Ground Clamp offers superior strength and precise sizing. This clamp features a spherical ball stud made from high-quality materials, allowing installation at various angles to access hard-to-reach areas, and it complies with ASTM and IEC standards, validated through independent laboratory testing for safety and reliability. The universal design enables use on conductors, round bus bars, and grounding studs, serving as one clamp for many applications while incorporating benefits like strain relief to reduce cable damage and a lubrication chamber for longevity. We invite you to explore our extensive product line to discover solutions for your specific grounding and service requirements.
| Parameter | Value |
|---|---|
| Compatible Ball Stud Size | 1 inch (25.4 mm) |
| Threaded Ferrule Size | 5/8″-11 UNC |
| Fault Current Rating | 43 kA for 15 cycles, 30 kA for 30 cycles |
| Continuous Current Rating | 400 A |
| Weight | 5 lbs |
| Installation Torque (Eyescrew and Ferrule) | 250 in-lb |
| Material | Bronze alloy or tin-plated copper |
| Standards | ASTM F855, IEC 61230 |
Frequently Asked Questions (FAQS)
What is a ball stud ground clamp and how does it work?
A ball stud ground clamp connects grounding cables to electrical equipment via a ball stud that fits into a corresponding socket. When tightened, it grips the cable securely, creating a reliable electrical connection for safe operation during maintenance or emergencies in substations and industrial settings.
What are the current ratings and size compatibility?
The clamp is rated for high current capacities of 43kA for 15 cycles and 30kA for 30 cycles. It is designed for 1-inch (25mm) ball studs, with options for customizable sizes to adapt to various applications.
How do I install the ball stud ground clamp?
Attach the clamp to the ball stud on the equipment and secure it tightly using a torque wrench. Apply the recommended torque specification of 250 in-lb for the eyescrew and ferrule to ensure safety.
What materials are used and can it be used outdoors?
The clamp is made from high-quality bronze alloys, providing strength, conductivity, and resistance to corrosion and environmental damage. It is suitable for both indoor and outdoor use in demanding conditions.
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