The Guy Strain Insulator provides electrical isolation in overhead line systems between guy strands and supporting structures. Installed in-line with guy wires on utility power lines, communication towers, and antenna systems, it prevents leakage currents and maintains electrical clearance during normal operation, enhancing safety for maintenance crews and the public while preventing interference with transmitted signals.
The insulator features a rod constructed from veiled fiberglass or wet process porcelain, delivering dielectric properties and resistance to Ultraviolet (UV) degradation. End fittings use ductile iron with hot dip galvanized finish for corrosion resistance. Crimped end fittings ensure consistent holding strength, while optional silicone coatings extend service life in harsh environments.
Minimum ultimate strength ratings range from 10,000 to 80,000 pounds, with common ratings at 16,000, 21,000, 30,000, and 36,000 pounds. Rod lengths span 12 to 144 inches, with pin-to-pin dimensions tailored to installation requirements. Products comply with American National Standards Institute (ANSI) Standard C29.4, with specified dry and wet flashover voltages for electrical performance.
Available end fitting configurations include clevis, clevis with roller, thimble eye, and eye types to accommodate various guy wire attachment methods. Custom options include non-standard lengths and silicone-coated rods for specialized applications in tower guying and pole line hardware systems.
Guy Strain Insulator – Premier Manufacturer
RaxPower offers a wide variety of Guy Strain Insulators for your power and utility needs. Our Guy Strain Insulator features a fully bonded, electrically track-free, and impenetrable silicone rubber sheath that provides superior protection against environmental challenges, including voltage, ultra-violet rays, and acid rain, ensuring long-term durability and reliability.
This design directly reflects our commitment to meeting stringent electrical and mechanical safety standards, with each unit proof tested and permanently marked to verify performance and compliance. Backed by over 21 years of expertise as a leading manufacturer in Hebei Province, China, we leverage advanced manufacturing processes such as hot forging and automation to produce high-strength components, while our rigorous quality control—including raw material selection, multi-stage testing, load tests, and SGS certifications—guarantees that every insulator delivers consistent safety and performance. For additional options, custom lengths, or detailed specifications, please contact RaxPower or reference our comprehensive product catalog.
| Parameter | Specification |
|---|---|
| ANSI Standard | ANSI C29.4 |
| Minimum Ultimate Strength | 10,000 to 80,000 pounds (common ratings: 16,000, 21,000, 30,000, 36,000 pounds) |
| Rod Length | 12 to 144 inches |
| Pin to Pin Length | Varies with rod length and end fitting; for example, for 12-inch rod, approximately 20-3/4 to 26-3/4 inches |
| Material – Rod | Veiled fiberglass or wet process porcelain |
| Material – End Fittings | Ductile iron with hot dip galvanized finish |
| UV Protection | Standard (with veiled fiberglass or coatings) |
| Dry Flashover Voltage | 25 kV to 140 kV (depending on model) |
| Wet Flashover Voltage | 12 kV to 70 kV (depending on model) |
| End Fitting Types Available | Clevis, clevis with roller, thimble eye, eye |
| Silicone Coating Option | Available for harsh environments |
Frequently Asked Questions
What is a guy strain insulator used for?
Guy strain insulators are intended for use with down guys or pole-to-pole guys on overhead lines. The insulative rod electrically isolates the guy strand from ground potential, preventing leakage currents to the anchor and providing electrical clearance for maintenance crews and the public during normal operation.
What materials and UV protection are used in guy strain insulators?
They typically feature a fiberglass rod with veil for UV protection, or porcelain. End fittings are made from hot-dip galvanized ductile iron for durability and corrosion resistance. Additional UV protection options include silicone coatings, which protect against ultraviolet rays, acid rain, and harsh environmental conditions.
What strength ratings and end fitting options are available?
Available strength ratings range from 15,000 lb to 80,000 lb, including common ratings of 16,000 lb, 21,000 lb, 30,000 lb, 36,000 lb, and 50,000 lb. End fitting options include clevis, clevis with roller, clevis thimble eye, and clevis eye, designed for consistent high-performance holding strength and compatibility with various hardware.
Are custom lengths available?
Yes, custom lengths are available. Please contact RaxPower for more information on specific requirements and options.
How does RaxPower ensure quality and compliance for critical infrastructure?
RaxPower's guy strain insulators are tested and verified to meet ANSI C29.4 standards, with proof testing and permanent marking to ensure compliance. Multi-stage testing, load testing, and 100% quality checks before packing ensure long-term reliability and consistent performance for grid applications.
Can RaxPower accommodate large-volume orders with customization for EPC projects?
Yes, RaxPower offers tailored solutions including custom lengths and a wide range of end fitting configurations to meet specific project requirements. Our extensive catalog, configurator tools, large warehouse facilities, and efficient production processes enable us to handle bulk orders with flexibility, precision, reliable supply, and competitive wholesale pricing for distributors.
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