P-11-Y/254 Pin-Type Insulator – High-Voltage 11kV Overhead Line Insulation Solution
The P-11-Y/254 pin-type insulator is a robust and dependable solution for insulation and conductor support in 11kV overhead transmission and distribution lines. Manufactured to meet BS Standard requirements, the P-11-Y/254 insulator ensures seamless integration into power networks across India, Bangladesh, Southeast Asia, and other markets that follow British Standards.
The P-11-Y/254 features a durable glazed porcelain finish (available in brown, grey, or white), providing excellent weather resistance and long-term durability in outdoor environments. With its simple yet rugged construction, this insulator offers exceptional mechanical strength, good anti-pollution performance, and competitive cost.
P-11-Y/254 Pin-Type Insulator Technical Specifications
| Parameter | Value |
| Model | P-11-Y/254 |
| Typical Application Voltage | 11 kV |
| Diameter (D) | 5½ Inches (140 mm) |
| Height (H) | 5¼ Inches (133 mm) |
| Total Creepage Distance | 10 Inches (254 mm) |
| Protected Creepage Distance | 4 Inches (102 mm) |
| Recommended Pin Height | 6 Inches (152 mm) |
| Cantilever Strength | 2,400 lbs (11 kN) |
| Power Frequency Dry Flashover Voltage | 75 kV |
| Power Frequency Wet Flashover Voltage | 45 kV |
| 50% Impulse Flashover Voltage, Positive | 110 kV |
| 50% Impulse Flashover Voltage, Negative | 150 kV |
| Power Frequency Dry Withstand Voltage | 65 kV |
| Power Frequency Wet Withstand Voltage | 40 kV |
| Dry Lightning Impulse Withstand Voltage | 95 kV |
| Power Frequency Puncture Voltage | 135 kV |
| Test Voltage RMS to Ground (RIV) | 15 kV |
| Maximum RIV at 1000 kHz | 100 μV |
| Net Weight, Approximate | 1.8 kg |
P-11-Y/254 Pin-Type Insulator Key Features
Superior Electrical Performance – The P-11-Y/254 insulator delivers reliable electrical performance for 11kV systems, with a total creepage distance of 254 mm that effectively increases leakage distance and reduces the risk of pollution flashover, guaranteeing safe operation of 11kV lines even under rain, fog, and contaminated conditions.
High Mechanical Strength – With a cantilever strength of 11 kN (2,400 lbs), the insulator reliably withstands conductor tension, wind loads, and ice accretion, ensuring long‑term stability in overhead line installations.
Excellent Anti‑Pollution Flashover Performance – The protected creepage distance of 102 mm and total creepage of 254 mm effectively increase leakage distance, reduce the risk of pollution flashover, and ensure reliable operation across various contamination levels.
Simple Structure, Easy Installation – The pin‑type insulator features a one-piece porcelain body designed for convenient mounting on standard pins. The conductor is secured in the groove or on the neck of the insulator using standard binding methods.
Glazed Porcelain Finish – The insulator features a durable glaze coating (available in brown, grey, or white) that provides excellent weather resistance, UV protection, and self-cleaning properties, ensuring long-term performance in harsh outdoor environments.
Reliable Design – Engineered for long-term reliable operation with minimal maintenance requirements – regular visual inspections and cleaning are typically sufficient to ensure continued performance.
P-11-Y/254 Pin-Type Insulator Application Scenarios
The P-11-Y/254 high‑voltage pin‑type insulator is ideal for:
- Insulation and conductor support in 11kV overhead distribution and transmission lines
- Outdoor installations with exposure to all atmospheric factors
- AC overhead power lines with voltages up to 33 kV
- Power distribution networks in normal and polluted areas
- Installation on wooden, reinforced concrete, and metal poles
- Medium voltage distribution networks in India, Bangladesh, Southeast Asia, and other BS-standard markets
- Mounting options – can be used vertically or horizontally
P-11-Y/254 Pin-Type Insulator Standards Compliance
| Standard | Description |
| BS 137 | Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1000 V |
| IEC 60383 | Insulators for overhead lines – ceramic or glass insulator units for AC systems |
| ANSI / GB / DIN / AS | Additional standards available upon request |
Why Choose P-11-Y/254 Pin-Type Insulator for Your Power Grid?
- Full BS compliance – meets BS 137 standard, ensuring smooth acceptance by grid operators and regulatory bodies in BS-standard markets
- Proven reliability – engineered with high mechanical strength (11kN cantilever strength) and robust electrical performance
- Pollution-resistant design – 254mm total creepage distance ensures reliable operation in contaminated environments
- Weather-resistant – glazed porcelain finish provides excellent weather resistance and UV protection
- Cost-effective – high performance at competitive pricing, reducing total project costs
- Versatile – suitable for voltages up to 36kV and available in multiple colors (brown, grey, white)
About the P-11-Y/254 Pin-Type Insulator Manufacturer
The P-11-Y/254 Pin-Type Insulator is manufactured by leading Chinese insulator manufacturers Bonle (Fujian) Insulator Co., Ltd. with decades of experience in power line products. These manufacturers hold ISO 9001 certification and produce insulators in accordance with IEC, ANSI, ASTM, AS, BS, DIN, and ISO standards. All products undergo rigorous electrical and mechanical testing before shipment, ensuring the highest quality standards.
Model: P-11-Y/254 | Standards: BS 137, IEC 60383 | Rated Voltage: 11 kV | Creepage Distance: 254 mm
Useful Links (replace with your actual URLs)
- Product Catalog – browse our full range of insulators
- Technical Datasheet – download detailed specifications and drawings
- Request a Quote – get pricing and availability for your project
- Certifications & Compliance – view our quality and testing certificates
For technical inquiries, bulk orders, or customized solutions, please contact our sales team via the links above.
P-11-Y/254 Pin-Type Insulator References & Authoritative Resources
For certification, standard compliance, and procurement specifications, refer to:
- BS 137 – Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1000V
- IEC 60383 – Insulators for overhead lines – ceramic or glass insulator units for AC systems
- Full Range of Pin Insulators – explore our complete product portfolio for transmission and distribution lines
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