TYPE 205 Porcelain Shackle Insulators – 3300V Overhead Power Lines
The TYPE 205 Porcelain Shackle Insulators are robust and dependable solution for securing and insulating conductors in overhead distribution lines up to 3300 Volts.
Manufactured by BONLE (MINQING) LOW VOLTAGE ELECTRIC CO.,LTD. and designed by WU REN GUO, this insulator ensures seamless integration into medium voltage power networks.
The TYPE 205 Porcelain Shackle Insulators feature a durable glazed porcelain finish, providing excellent weather resistance and long-term durability in outdoor environments.
Designed as a shackle (spool) type insulator, it is specifically engineered for anchoring and dead-ending conductors on cross arms, poles, and building facades.
With its robust mechanical design (13.5kN designed loading) and reliable electrical performance (25kV dry flashover), this insulator offers a cost-effective solution for overhead line applications.
TYPE 205 Porcelain Shackle Insulators – Designation Breakdown
The designation TYPE 205 Porcelain Shackle Insulators is a specific manufacturer product code. The breakdown below reflects its primary application and design features:
| Code | Meaning |
| 205 | Model series / 3300V class insulator |
| Shackle | Shackle (Spool) type design for strain and dead-end applications |
TYPE 205 Porcelain Shackle Insulators – Technical Specifications
| Parameter | Value |
| Model | TYPE 205 |
| Applicable Standard | Designed to meet AS 3608-2005 |
| Nominal Voltage | 3300 Volts |
| Frequency | Not greater than 100 Hz |
| Designed Loading | 13.5 kN |
| Insulator Material | Porcelain |
| Surface Finish | Glazed (Standard Grey/Brown) |
| Thread Type | Shackle (Spool) Type |
| Top Diameter | Ø89 ± 2 mm |
| Height | 72 ± 2 mm |
| Step Height | 30 mm |
| Mounting Diameter | Ø51 ± 2 mm |
| Hole Diameter | Ø17.5 +1.5/0 mm |
| Base Diameter | Ø76 mm |
| Radius | R9 |
| Manufacturer | BONLE (MINQING) LOW VOLTAGE ELECTRIC CO.,LTD. |
| Designer | WU REN GUO |
TYPE 205 Porcelain Shackle Insulators – Key Features
Reliable Electrical Performance – The TYPE 205 Porcelain Shackle Insulators deliver reliable electrical performance for 3300V systems. With a dry flashover voltage of 25kV and a wet flashover voltage of 13kV, it effectively ensures safe operation under various environmental conditions. Testing and verification follow AS/NZS 2947.1 – Test methods for insulator units where applicable.
High Mechanical Strength – With a designed loading of 13.5 kN, the insulator reliably withstands conductor tension, wind loads, and ice accretion, ensuring long-term stability in strain and dead-end overhead line installations. For installation best practices, refer to our Insulator installation guide for overhead lines.
Medium Voltage Application – Designed for outdoor use at nominal voltages up to 3300V a.c. and frequencies not greater than 100Hz, making it ideal for medium voltage distribution networks.
Shackle / Spool Type Design – Specifically engineered for anchoring and securing conductors to cross arms, poles, and building structures. The spool configuration allows for easy and secure conductor tying.
Glazed Porcelain Finish – The insulator features a durable glaze coating (available in standard colors) 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.
TYPE 205 Porcelain Shackle Insulators – Application Scenarios
The TYPE 205 Porcelain Shackle Insulators are ideal for:
- Anchoring and dead-ending of conductors in overhead distribution lines up to 3300V a.c.
- Securing cables to cross arms, poles, and building structures
- Outdoor installations with exposure to all atmospheric factors
- AC overhead power lines with frequencies not exceeding 100 Hz
- Power distribution networks in normal environmental conditions
- Installation on wooden, reinforced concrete, and metal poles
For projects involving different voltage classes or mechanical load requirements, explore our related product ranges such as 1130W/32 11kV Pin-Type Insulator, TYPE 210 Porcelain Shackle Insulator, TYPE 510 Porcelain Pin Insulator, 11kV strain insulators for overhead lines, and Porcelain shackle insulators – 650V & 3300V.
TYPE 205 Porcelain Shackle Insulators – Standards Compliance
| Standard | Description |
| AS 3608-2005 | Insulators — Porcelain and glass, pin and shackle type — Voltages not exceeding 1000V a.c. (Note: TYPE 205 extends beyond this standard’s voltage scope, typically used in 3.3kV systems). |
| AS/NZS 2947.1 | Test methods — Insulator units |
| AS 1154.1 | Insulator and conductor fittings for overhead power lines – Performance, material, general requirements and dimensions |
| AS 2947.3 | Insulators for overhead power lines — Porcelain and glass — Part 3: Insulator threads |
For a comprehensive overview of how these standards apply to your specific project, visit our AS/NZS standards compliance overview.
TYPE 205 Porcelain Shackle Insulators – Recommended Installation
The TYPE 205 shackle insulator is designed for direct mounting onto cross arms, pole brackets, or building facades using appropriate bolts or pins through the central hole (Ø17.5 mm diameter). The spool design features integral grooves for secure conductor tying, ensuring reliable strain relief in dead-end and angle applications.
Why Choose TYPE 205 Porcelain Shackle Insulators for Your Power Grid?
- Full compliance – designed to meet relevant AS/NZS standards, ensuring smooth acceptance by grid operators and regulatory bodies.
- Proven reliability – engineered with 13.5 kN designed loading for dependable strain and dead-end applications.
- Medium voltage optimized – specifically designed for voltages up to 3300V a.c.
- Weather-resistant – durable glazed porcelain finish provides excellent weather resistance and UV protection.
- Shackle type design – specifically engineered for anchoring conductors to cross arms, poles, and buildings.
- Cost-effective – high performance at competitive pricing, reducing total project costs.
About the TYPE 205 Porcelain Shackle Insulators Manufacturer
The TYPE 205 Porcelain Shackle Insulators Porcelain is manufactured by BONLE (MINQING) LOW VOLTAGE ELECTRIC CO.,LTD., a leading Chinese insulator manufacturer with decades of experience in power line products.
This manufacturer holds ISO 9001 certification and produces 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.
View the full BONLE official pin insulator product range for related product specifications and technical documentation.
Designer: WU REN GUO
Model: TYPE 205 | Standard: AS 3608-2005 Design Reference | Rated Voltage: 3300 V | Designed Loading: 13.5 kN
Related Products & Technical Resources
Related Products
- 1130W/32 11kV Pin-Type Insulator – 250mm creepage, 11kN cantilever, semi-conductive
- SLP/11/180 11kV Pin-Type Insulator – AS 4899 compliant, 180mm creepage, 7kN cantilever
- TYPE 510 Porcelain Pin Insulator – 400-3000V, Cordeau thread, 7kN cantilever
- TYPE 210 Porcelain Shackle Insulator – 650V, 7kN designed loading
- 11kV strain insulators for overhead lines – 15kV wet flashover, 71kN mechanical failing load
- 22kV pin type insulators for high voltage – 150kV impulse withstand, 450mm creepage
- Porcelain shackle insulators – 650V & 3300V – 7kN and 13.5kN designed loading
- 71kN strain insulator for line (AS3609) – Compliant with AS3609
- 222kN strain insulator for line (AS3609) – 20kV wet flashover, 222kN failing load
Technical Resources
- Complete porcelain pin insulator selection guide
- Insulator installation guide for overhead lines
- AS/NZS standards compliance overview
- Pollution level selection guide for insulators
References & Authoritative Resources
- AS 3608-2005 – Insulators – Porcelain and glass, pin and shackle type – Voltages not exceeding 1000V a.c. – Standards Australia
- AS/NZS 2947.1 – Test methods for insulator units – Intertek Inform
- For engineers comparing equivalent MV shackle insulator options, the TE SLP/11/180 datasheet provides a useful benchmark for standard pin and shackle configurations.
- Semi-conducting glaze insulator performance study – IEEE Xplore (Relevant for contamination performance insights)
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