Looking for Composite Polymer Pin Insulators in India?
At Venkateswara Suppliers Pvt Ltd (VSPL), we manufacture IEC-certified polymer pin insulators designed for superior electrical insulation, lightweight handling, and long-term outdoor reliability. Ideal for 11 KV – 33 KV distribution networks, these insulators deliver safe, strong, and durable performance across India’s toughest environments.
What Are Composite Polymer Pin Insulators?
Composite Polymer Pin Insulators are used on overhead distribution lines to support and isolate conductors. They consist of a fiberglass (FRP) core, silicone rubber housing, and metal end fittings, combining mechanical strength with environmental resistance.
Why They Matter:
Technical Specifications – Composite Polymer Pin Insulators
| Parameter | 11 KV | 15 KV | 22 KV | 33 KV |
|---|---|---|---|---|
| Nominal System Voltage (KV) | 11 | 15 | 22 | 33 |
| Rated System Voltage (KV) | 12 | 17 | 24 | 36 |
| Frequency (Hz) | 50 | 50 | 50 | 50 |
| Minimum Failing Load (kN) | 5 | 5 | 5 & 10 | 10 |
| Creepage Distance (mm) | 320 | 430 | 665 | 900 / 1116 |
| Dry Power Frequency Withstand Voltage (KV) | 65 | 75 | 85 | 110 |
| Wet Power Frequency Withstand Voltage (KV) | 45 | 55 | 55 | 95 |
| Standard Compliance | IEC 61109 : 2008 / IEC 62217 | IEC 61109 : 2008 / IEC 62217 | IEC 61109 : 2008 / IEC 62217 | IEC 61109 : 2008 / IEC 62217 |
Why Choose VSPL
With over 25 years of manufacturing excellence, VSPL combines advanced HTV & LSR silicone rubber technology, in-house ECR grade FRP core production, and testing to IEC 61109 & 62217 standards.
Our pin insulators are field-proven for India’s diverse power distribution conditions.
Key Advantages
- 5,000-hour accelerated ageing & 1,000-hour tracking tests passed.
- Qualified under IEC 61109 / IEC 62217 / ANSI C29.13.
- Robust zinc-coated metal fittings.
- Low leakage current and high mechanical strength.
- Lightweight & maintenance-free.
FAQs
We offer 11 KV, 15 KV, 22 KV and 33 KV pin insulators for distribution lines.
Yes — they offer higher impact strength and resist breakage during transport or installation.
No. Their silicone rubber housing is hydrophobic and self-cleaning, ideal for dusty or humid zones.
Yes. Each unit undergoes routine mechanical, electrical and ageing tests before dispatch.
Absolutely — our Palakkad facility develops custom moulds and fittings within short lead times.
Get a Quote
Contact us today to learn more about VSPL's Composite Polymer Pin Insulators, including product details, pricing, and custom solutions.
Business Hours
Mon - Sat: 9:00 AM - 6:00 PM