Porcelain Spool Insulators
Cost-effective porcelain spool insulators for low voltage distribution lines, service drops, and secondary connections. Reliable insulation for distribution networks.
Spool Insulators for Distribution Systems
Our porcelain spool insulators are designed for low voltage distribution lines, service drops, and secondary connections. They provide reliable insulation and mechanical support for conductors.
- For voltages up to 33kV
- Compact and lightweight design
- Easy installation and maintenance
- Cost-effective solution
- Available in various sizes
- Threaded or grooved designs
- Weather-resistant porcelain
Types of Spool Insulators
Single Groove Spool
For simple conductor support applications with single conductor
Double Groove Spool
For supporting two conductors or providing additional creepage distance
Threaded Spool
With threaded hole for mounting on pins or bolts
Unglazed Spool
For areas with heavy pollution where glaze tracking may occur
Porcelain Spool Insulators for Electrical Distribution Networks
Spool insulators, also known as knob insulators, are widely used in low voltage distribution systems for supporting conductors on poles, crossarms, and other structures. At Changsha Rich Power, we manufacture high-quality porcelain spool insulators that provide reliable electrical insulation and mechanical support for distribution lines up to 33kV.
Applications of Spool Insulators
Spool insulators are commonly used in:
- Secondary Distribution: Supporting service drops from utility poles to buildings
- Primary Distribution: Insulating conductors on distribution poles
- Guy Wire Insulation: Isolating guy wires from grounded structures
- Communication Lines: Supporting telephone and communication cables
- Railway Signaling: Insulating signal and communication lines along railways
Advantages of Porcelain Spool Insulators
Porcelain spool insulators offer several advantages over other materials. They have excellent dielectric strength, good mechanical properties, resistance to weathering and UV radiation, and long service life. Porcelain is also non-combustible and maintains its insulating properties at high temperatures.
Manufacturing Quality
Our spool insulators are manufactured using high-grade electrical porcelain with controlled alumina content. The manufacturing process includes precise forming, high-temperature firing, and quality testing to ensure consistent performance. Each insulator is tested for electrical and mechanical properties before shipment.
Contact Us for Spool Insulator Solutions
Changsha Rich Power
sales@asiapower.net
+86 137 8618 8769
Changsha Rich (AsiaPower) supplies
durable porcelain spool insulators (like Type 53-1)
for low-voltage distribution lines, guy wires, and service drops. Reliable support and insulation.
Spool insulators are a fundamental component in low-voltage distribution networks and telecommunications lines. Characterized by their distinctive drum-like shape with a central hole for mounting, they provide essential insulation and mechanical support for conductors. Asia Power’s porcelain spool insulators, including the widely used Type 53-1, are engineered for durability and reliable performance in supporting, dead-ending, or guying applications.
Features of Asia Power Spool Insulators:
- Durable Porcelain Construction: Offers high mechanical strength and excellent insulation.
- Cost-Effective Solution: Ideal for widespread use in LV distribution and service connections.
- Easy Installation: Central hole allows for easy mounting on bolts or pins.
- Grooved Design: Securely holds wires in place, preventing slippage.
- Weather-Resistant Glaze: Provides long-term performance in outdoor environments.
Common Applications of Spool Insulators:
- Supporting secondary distribution lines
- Insulating guy wires on utility poles
- Service drop connections from pole to building
- Low-voltage overhead lines in rural areas
- Railway signaling circuits