Product Description
WANGYUAN Stay Insulators are designed for electrical insulation and mechanical fixation in overhead line guy wire systems. Made of high-grade electrical ceramic fired at high temperature with a dense brown glazed surface, they deliver excellent tensile strength and stable insulation performance, effectively isolating live conductors from grounded stay cables. With robust structure and complete specifications, all products comply with relevant international power standards for long-term reliable service in outdoor environments.
Specification

| ANSI CLASS |
54-1 |
54-2 |
54-3 |
54-4 |
| Dimensions (mm) |
Height |
89 |
108 |
140 |
171 |
| Hole Centers Spacing |
44 |
57 |
79 |
67 |
| Inner Diameter |
44 |
54 |
60 |
60 |
| Outer Diameter |
64 |
73 |
86 |
89 |
| Hole Diameter |
16 |
22 |
25 |
25 |
| Height to Hole |
Max 63 |
Max 76 |
Max 103 |
Max 114.3 |
| Mechanical Failing Load, kN |
44 |
53 |
89 |
89 |
| Power Frequency Flashover Voltage |
Dry, kV |
25 |
30 |
35 |
40 |
| Wet, kV |
12 |
15 |
18 |
23 |
| Net Weight, kgs |
0.5 |
0.65 |
1.2 |
2.2 |
Advantages
High Mechanical Tensile Strength
High-density ceramic body with reinforced structure delivers outstanding tensile and impact resistance, stably bears the tension of stay wires under long-term load, with no fracture or deformation and high mechanical reliability.
Reliable Electrical Insulation
Dense glazed electrical ceramic ensures stable dielectric strength, effectively isolates the electrical potential between live lines and grounded stay assemblies, preventing leakage current and guaranteeing safe operation of distribution systems.
Superior Weather & Pollution Resistance
The smooth dense brown glaze features excellent UV resistance, aging resistance and anti-pollution performance, adapting to high humidity, coastal salt spray, industrial dust and other harsh outdoor conditions with extended service life.
Convenient Installation & Wide Compatibility
Standard through-hole design fits various stay wire specifications, enabling simple and fast on-site assembly; it is widely applicable to pole towers, distribution lines and outdoor power guy systems with strong versatility.