Outdoor High Voltage Current Limiting Ceramic Tube Fuse
Products Description
The Outdoor High Voltage Current Limiting Ceramic Tube Fuse consists of a high-performance ceramic tube body, an arc-extinguishing filling medium, and a fuse element. The square ceramic body serves as the primary structure, providing superior electrical insulation while also offering mechanical support and arc-extinguishing capabilities. Its square profile optimizes installation compatibility and heat dissipation; the overall structure is robust and weather-resistant, specifically engineered for long-term outdoor exposure.
Key features include:
High-voltage insulation performance: The ceramic body features a high voltage rating and a design that ensures sufficient creepage distance, effectively isolating high voltage.
Current-limiting and arc-extinguishing capabilities: The internal structure works in conjunction with the ceramic tube to rapidly limit fault currents and efficiently extinguish arcs.
Outdoor weather resistance: The surface and material composition of the square ceramic body provide excellent resistance to UV radiation, rain erosion, and pollution flashover.
Detail Showcase: A Quality Standard Forged with Craftsmanship
End Cap Fit
The interface between the end cap and the Ceramic Body for Auto Fuses tube is flush and seamless; high mechanical strength ensures the connection remains secure without loosening during prolonged operation and heating.
Striker Actuation Force
The striker's ejection force is rigorously tested to ensure sufficient power to actuate the interlocking mechanism, guaranteeing reliable operation even in freezing, sub-zero weather.
Markings and Nameplate
The nameplate is made of laser-etched stainless steel and mounted on the side of the Fuse Link Ceramic Body; specifications remain clearly legible even after years of outdoor exposure to sun and rain.
Resistance and Temperature Rise
100% DC resistance testing is performed before shipment to ensure ultra-low contact resistance; temperature rise during full-load operation remains well below standard limits, extending service life.
Application Advantages: Covering All Scenarios in Traditional Power Systems
| 35kV Outdoor Distribution Lines | Installed on outdoor poles, towers, or structures to provide overload and short-circuit protection for transmission and distribution lines. The porcelain bushings must meet operational requirements for high-altitude (above 1,000m), extremely cold (-40°C), and heavily polluted environments. |
| Power Transformer Protection | Installed on the high-voltage side of distribution transformers to provide short-circuit and overload protection. Typical models include the RW9-35/0.5A and RW10-35/2A. The porcelain bushings must ensure reliable electrical and mechanical connections with the transformer's high-voltage bushings and busbars. |
| Voltage Transformer Protection | Installed on the primary side of outdoor busbar or line voltage transformers to protect them from overcurrent damage. Statistics show that over 98% of fuse operations are caused by lightning strikes, and replacements often take place during rainy weather; this necessitates that the porcelain bushings maintain reliable insulation performance in humid environments. |
| Capacitor Bank Protection | In the switching and protection circuits of outdoor shunt capacitor banks, the porcelain bushings provide high-voltage insulation and outdoor environmental protection for the Electrical Insulators, Steatite Ceramic. |
Material Advantages: High-Strength Porcelain Glaze and Weather-Resistant Design
High-Alumina Porcelain Body
Crafted from premium high-alumina porcelain and fired at temperatures exceeding 1,300°C, this material offers not only exceptional dielectric strength but also outstanding tensile and compressive strength. 95% Alumina Ceramic Tube for Fuse effectively withstands the mechanical vibrations and stresses caused by thermal expansion and contraction inherent in high-voltage lines.
Protective Yellow Glaze
The signature yellow finish serves as more than just a warning color; it acts as a functional layer. The specially formulated glaze is dense, smooth, and highly hydrophobic. In harsh outdoor conditions-such as rain, snow, dense fog, or icing-it effectively prevents pollution flashover, meeting operational requirements for high-altitude and heavily polluted environments.
Aging Resistance
Unlike housings made of organic materials, 95% Alumina Ceramic Tube for Ceramic Type Fuse materials do not age or become brittle when exposed to ultraviolet radiation, ozone, or industrial pollutants. They offer a design life of over 20 years, aligning with the full lifecycle of the transformer.
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If you are selecting high-voltage power equipment or sourcing fuse assemblies, we can provide tailored engineering solutions based on your electrical parameters, structural requirements, and application environment, helping you achieve more stable and reliable product integration for Electrical Alumina Square Ceramic Tube for Fuse.
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