Bolted cable spacers maintain proper spacing between electrical cables in overhead transmission lines and substations, preventing damage from cable contact and movement while supporting efficient power transmission. These clamps feature a rigid body constructed from aluminum alloy, bronze, hot-dip galvanized steel, or stainless steel, with mounting holes on both sides that secure onto cables using bolts and screws. Surface treatments like hot-dip galvanizing or electro-galvanizing enhance corrosion resistance.
The spacers provide high dielectric strength and accommodate cable outer diameters from approximately Ø8mm to Ø25mm, with common sizes including 8-inch and 12-inch options that determine separation distance. The bolted design allows re-adjustment and maintenance, with customizable bolt spacing and clamp diameters for various applications. Materials resist ultraviolet (UV) exposure and environmental corrosion, meeting Institute of Electrical and Electronics Engineers (IEEE), International Electrotechnical Commission (IEC), and national grid standards.
Technical capabilities include withstanding wind pressures up to 1440Pa and operating temperatures from -40°C to +85°C. Installation involves clamping the spacer body onto cables through mounting holes and fastening with bolts, ensuring uniform spacing in single or double suspension structures. Some models specifically address slack span requirements with hoop-type attachments or specialized bolt fixing methods tailored to different electrical environments.
Bolted Cable Spacer Manufacturer
Based in Hebei, China since 2003, RaxPower has been a leading manufacturer of pole line hardware, with essential products like the bolted cable spacer designed to maintain cable clearance and prevent damage in power line applications. With over 21 years of experience, RaxPower concentrates on R&D and innovation design, ensuring that all components, including cable spacers, are developed using advanced manufacturing processes like hot forging, which provides greater strength and accurate sizing for reliable performance. The company’s commitment to quality is reflected in strict control measures, such as automation for uniform production, hot-dip galvanizing for corrosion resistance, and rigorous load testing, with products having passed SGS tests and evaluations by authoritative research institutes. This customer-centric approach, guided by the principle “quality is life, reputation is base,” guarantees that each bolted cable spacer meets specific client needs, ensuring durability and trust in RaxPower’s solutions.
| Specification | Value |
|---|---|
| General | |
| Product Type | Bolted Cable Spacer |
| Materials | Aluminum alloy, Bronze alloy, Hot-dip galvanized steel, Stainless steel |
| Surface Treatment | Hot-dip galvanizing, Electro-galvanizing |
| Minimum Order Quantity (MOQ) | 1 piece |
| Customization Services | OEM/ODM supported |
| Physical Specifications | |
| Cable Outer Diameter Range | Ø8 mm to Ø25 mm |
| Spacing Sizes | 8 inch, 12 inch (customizable) |
| Bolt Size | 1/2 inch (typical) |
| Weight | Varies by model (e.g., approximately 5.488 lb for 6-inch spacing) |
| Electrical Specifications | |
| Voltage Rating | Up to 230 kV (application dependent) |
| Standards Compliance | IEEE, IEC, National grid standards |
| Environmental Specifications | |
| Wind Pressure Resistance | ≥1440 Pa |
| Operating Temperature Range | -40°C to +85°C |
| Installation | |
| Installation Structure | Single suspension, Double suspension, Bolt fixing, Hoop type |
Frequently Asked Questions (FAQS)
What is a bolted cable spacer and how does it function?
A bolted cable spacer is a device used in electrical installations to maintain proper spacing between adjacent cables, preventing slack, sagging, and damage while ensuring reliable electrical transmission. The spacer features a main body with mounting holes that clamp onto cables and are secured with bolts or screws for a firm grip.
Where are bolted cable spacers typically applied?
These spacers are used in overhead electrical transmission infrastructure, substations, and any installation where transmission cables run adjacent to one another, helping maintain consistent spacing for improved resilience and efficient power transmission.
What materials are bolted cable spacers constructed from?
Bolted cable spacers are typically made from rigid aluminum alloy or composite materials, providing high dielectric strength, durability, and resistance to corrosion and UV exposure. Precision manufacturing and strict quality control, including hot-dip galvanizing when specified, ensure long-term performance in harsh environmental conditions.
How do you install a bolted cable spacer?
Installation involves clamping the mounting holes on both ends of the spacer body onto the cables requiring separation, then fastening with bolts or screws to create a secure connection. Sealants may be applied to enhance reliability.
Can the spacers be customized for specific project needs?
Yes, RaxPower offers customizable solutions through OEM/ODM services, including adjustable bolt spacing, clamp diameters, material selection, dimensional adjustments, and hardware accessories. You can provide a sample or basic dimensions, and our engineers will handle technical details to ensure compatibility and optimal performance for your application.
Is it possible to order small quantities for testing before committing to a large purchase?
Absolutely. We accept orders as small as 1 piece for samples, and our flexible production model supports both rapid sampling and stable large-scale production, ensuring consistent delivery regardless of order size.
What is the typical lead time for orders?
Lead time depends on part complexity and order volume. For prototypes or low-volume runs, RaxPower typically offers lead times as fast as 5–7 working days, with rush orders often accommodated.
Do your cable spacers come with certifications for grid compliance?
Yes, our products are manufactured to meet IEEE, IEC, and national grid standards. We can provide type test reports and third-party certifications upon request for projects requiring compliance with these international standards.
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