Pin Type Glass Insulator PR5
By YIWU SASUN ELECTRICAL CO., LTD
The RP5 33kV glass pin insulator is engineered for dependable performance in overhead power distribution systems up to 33kV. Designed to meet IEC 60383 (1993) standards, it delivers strong electrical insulation, high mechanical strength, and long-term durability—making it a top choice for utilities and contractors worldwide.
Key Specifications
Dimensions:
Shell diameter: 270 mm
Height: 210 mm
Creepage distance: 340 mm
Unit weight: 5.50 kg (including 1.50 kg forged steel spindle)
Electrical Performance:
Wet power frequency withstand voltage (1 min): 50 kV
Impulse withstand voltage: 120 kV
Minimum puncture voltage: 130 kV
Mechanical Performance:
Minimum electro-mechanical failing load: 18 kN
Tested per IEC 60383 (1993)
These specs ensure stable operation under wet, polluted, or high-stress conditions—critical for real-world grid reliability.
Product parameters
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Technical Specifications |
GLASS INSULATOR - RP5 DIMENSIONS ELECTRICAL PERFORMANCES MECHANICAL PERFORMANCES COMPONENT PARTS |
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SASUN INTERNATIONAL ELECTRIC CO.LTD |
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Pin Insulator 33-36KV Model Nos ：RP - 5 |
Why Glass?
Tempered glass offers key advantages over porcelain or composite alternatives:
The RP5's 340 mm creepage distance provides excellent pollution performance, ideal for coastal, industrial, or desert environments where contamination risks are high.
Global Demand, Proven Use
The RP5 is widely used across fast-growing power markets:
● Africa: Deployed in Nigeria, Kenya, Ghana, and South Africa for rural electrification and urban grid upgrades. Its robustness handles dust, heat, and humidity with minimal maintenance.
● Southeast Asia: Common in Indonesia, Vietnam, and the Philippines, where high rainfall and salt exposure demand reliable insulation.
● Middle East: Trusted in Iraq, Saudi Arabia, and Jordan for thermal stability and sand resistance.
● Latin America: Used in Brazil, Colombia, and Peru for distribution networks linking solar farms and remote communities.
Its standard pin-type design fits common hardware, reducing installation complexity and training needs. Utilities appreciate its consistent quality, predictable lifespan, and low lifecycle cost.
Drawing
Built for Real Conditions
▷ Unlike lab-only designs, the RP5 is field-tested. The 18 kN mechanical rating supports heavy conductors and resists wind-induced vibration. The 120 kV impulse rating protects against lightning—a major cause of outages in tropical and mountainous regions. The 130 kV puncture threshold ensures internal integrity even under severe overvoltage.
▷ All units undergo factory testing for dimensions, load capacity, and dielectric strength. Each batch complies with IEC 60383, giving buyers confidence in safety and interoperability.
Manufacturing Excellence
▷ YIWU SASUN ELECTRICAL CO., LTD is a specialized manufacturer of high-voltage insulators with ISO 9001-certified production. We control every step—from raw material selection to final inspection—ensuring consistency batch after batch.
▷ Our RP5 insulators use high-quality tempered glass and precision-forged steel spindles. The glass-to-metal seal is thermally matched to prevent cracking during temperature changes. This attention to detail minimizes field failures and warranty claims.
We support global clients with
● Competitive FOB pricing
● Flexible MOQs
● Custom packaging (palletized, crate, or bulk)
● Documentation for local certification (e.g., SONCAP, PVOC, SABER)
● Fast turnaround: 15–30 days for standard orders
● Cost-Effective & Sustainable
● Glass insulators have a service life of 30+ years—far exceeding many polymer types that degrade in 10–15 years. There's no need for hydrophobicity re-treatment or frequent replacement. This reduces total ownership cost, especially in hard-to-reach areas.
Moreover, glass is inert and fully recyclable. Choosing RP5 supports sustainable infrastructure goals without sacrificing performance.
Technical specification
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Ultmate Utensile Strenght |
impulse: R (kN) |
10 |
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tensile:T (kN) |
5 |
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H nominal (max) |
(mm) |
300 |
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h nominal(min) |
(mm) |
85 |
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Nominal leakage line(min) |
(mm) |
660 |
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Withstand voltage |
impulse:(kV) |
170 |
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power frequency underthe rain (kV) |
70 |
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Salinity of thightness at the test voltage UP= 18kV (g/l) |
160 |
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Ideal Applications
Ideal Applications
33kV overhead distribution lines
Feeder networks in urban and rural areas
Grid extensions for mining, agriculture, or telecom towers
Renewable energy interconnections (solar/wind farms)
Emergency restoration and disaster-resilient rebuilding
The RP5 works reliably in temperatures from -40°C to +40°C and altitudes up to 2,000 meters—covering most global operating conditions.
Your Partner in Power Reliability
YIWU SASUN doesn't just sell insulators—we deliver solutions. Our technical team provides support on:
◎ Product selection based on line voltage and environment
◎ Compatibility checks with existing hardware
◎ Compliance guidance for regional standards
◎ With exports to over 50 countries, we understand the challenges of international procurement. We prioritize clear communication, on-time delivery, and after-sales responsiveness.
Conclusion
The RP5 33kV glass pin insulator combines proven technology, international certification, and real-world toughness. It's not the cheapest option—but it's the smartest long-term investment for grids that must run safely, efficiently, and without interruption.
For utilities, EPC contractors, and distributors seeking a balance of quality, price, and reliability, the RP5 stands out. Backed by YIWU SASUN's manufacturing discipline and global experience, it's a product you can trust—kilometer after kilometer.
Product size