Socket type suspension insulator caps are metal components that connect porcelain or toughened glass insulating discs within suspension strings for high-voltage power transmission and distribution systems. These caps isolate live conductors from supporting structures like towers and poles while bearing tensile loads, providing electrical shielding to prevent current leakage, and distributing mechanical stress uniformly across insulator strings to minimize localized failures.
The caps are typically manufactured from ductile iron or forged steel, selected for high tensile strength and impact resistance. Hot-dip galvanizing applies a protective zinc coating that ensures corrosion resistance in varied climates, including coastal and industrial environments. Mechanical resistance ratings range from 40 kilonewton (kN) to 1000 kN, accommodating applications from light distribution lines to heavy-duty transmission networks.
The socket type design features a cylindrical socket that engages directly with ball pins, creating rigid connections in insulator strings. Standardized coupling sizes of 16 millimeter (mm), 20 mm, and 24 mm ensure compatibility with various fittings and align with International Electrotechnical Commission (IEC) and American National Standards Institute (ANSI) standards. The design supports high fatigue resistance under mechanical and electrical stresses, with zinc coatings mitigating long-term corrosion risks.
Durable and Reliable Insulator Caps from RaxPower Supplier
RaxPower, established in 2003 in Hebei Province, China, is a leading manufacturer and exporter of pole line hardware, with 21 years of extensive experience in the industry.
Our Socket type suspension insulator cap is designed for electric line fittings, providing reliable insulation in high-voltage transmission systems. These caps feature high tensile strength, durability, and corrosion resistance, achieved through hot-dip galvanized surface treatment, ensuring a long lifespan and weatherproof performance.
The use of advanced manufacturing processes like hot forging results in greater strength and accurate sizing, while strict quality control, including load testing and galvanization checks, guarantees uniform and high-quality products.
With a customer-centric approach, RaxPower focuses on delivering cost-effective solutions backed by our global supply capabilities. We invite you to contact us for more information or to discuss your purchasing needs.
| Mechanical Resistance (kN) | Coupling Size (mm) | Cap Height (mm) | Material | Surface Treatment | ANSI Standard |
|---|---|---|---|---|---|
| 40 | 11 | 71 | Ductile Iron or Forged Steel | Hot-dip galvanizing | – |
| 70 | 16 | 76 | Ductile Iron or Forged Steel | Hot-dip galvanizing | 52-3 |
| 100 | 16 | 83.3 | Ductile Iron or Forged Steel | Hot-dip galvanizing | 52-3 / 52-5 |
| 120 | 16 | 85 | Ductile Iron or Forged Steel | Hot-dip galvanizing | 52-5 |
| 160 | 20 | 98.5 | Ductile Iron or Forged Steel | Hot-dip galvanizing | 52-8 |
| 210 | 20 | 107.5 | Ductile Iron or Forged Steel | Hot-dip galvanizing | – |
| 300 | 24 | 126 | Ductile Iron or Forged Steel | Hot-dip galvanizing | – |
| 400 | 28 | 140.3 | Ductile Iron or Forged Steel | Hot-dip galvanizing | – |
| 530 | 32 | 152 | Ductile Iron or Forged Steel | Hot-dip galvanizing | – |
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Frequently Asked Questions (FAQS)
What is the primary application of socket type suspension insulator caps?
Socket type suspension insulator caps are assembled with porcelain or toughened glass as the insulating elements for high voltage power transmission and distribution systems.
What are the key benefits of using socket type suspension insulator caps?
Key benefits include high tensile strength, durability, corrosion resistance, reliability, easy installation, safety, cost-effectiveness, long lifespan, weatherproofing, and versatility, making them ideal for various high-voltage transmission setups.
What materials and surface treatments are used in construction?
These caps are made from ductile cast iron or malleable iron, with a hot dip galvanized surface treatment to ensure durability and corrosion resistance.
What international standards do these caps comply with?
They adhere to international standards such as IEC 120 and ANSI C29.2, ensuring compatibility and safety in high-voltage applications.
What mechanical strength ratings and dimensions are available?
Mechanical classes range from 40KN to 550KN, with corresponding heights from 71mm to 152mm, meeting diverse transmission requirements across different voltage levels.
Does RaxPower offer a broad catalog to support diverse market demands?
Yes, RaxPower provides socket type suspension insulator caps with mechanical strengths from 40KN to 1000KN in various sizes and configurations, catering to distributors and importers seeking a wide selection for their local markets.
How does RaxPower ensure high reliability for power grid applications?
RaxPower conducts rigorous load testing and gauge tests in accordance with IEC 120 and international standards to verify mechanical strength and dimensional accuracy. All products undergo multiple quality reviews from raw material selection through final packing, and have passed SGS tests and assessments by authoritative research institutes, ensuring complete compliance for critical grid infrastructure.
What is RaxPower's capacity for handling large-scale orders and ensuring on-time delivery?
With 17,000 square meters of production workshops and 5,000 square meters of warehouses, RaxPower leverages automated machines and efficient processes staffed by over 170 employees. This infrastructure supports bulk supply capabilities and timely fulfillment even for extensive projects, backed by decades of exporting experience.
How does RaxPower achieve cost savings while maintaining consistent quality for OEM clients?
RaxPower utilizes advanced hot forging technology for greater strength and accurate sizing, combined with strict quality control at every production stage. By selecting high-quality raw materials and employing multi-stage testing, the company delivers durable, uniform products at competitive prices, ensuring cost-effectiveness without compromising quality.
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