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36kV Pin Type Composite Insulator
Factory: We are a professional manufacturer providing OEM custom production services.
- Product Overview
- Technical Specifications
- Product Structure
- Applications
- Testing Capability
- Packaging & Customization
Product Overview
The Wishpower 36kV pin type composite insulator is designed to provide electrical insulation and mechanical support for conductors on 36kV overhead distribution lines. It combines a high-strength fiberglass core, silicone rubber housing and corrosion-resistant end fittings, offering low weight, strong pollution performance, weather resistance and convenient installation for demanding outdoor power systems.
Product Overview
The 36kV pin type composite insulator is an outdoor line insulation component installed on a pole crossarm or supporting bracket. It supports the overhead conductor while maintaining electrical isolation between the energized conductor and the grounded pole structure.
Wishpower can configure the product according to the required electrical strength, cantilever load, creepage distance, conductor arrangement and mounting dimensions.
Its principal advantages include:
A high-strength fiberglass-reinforced resin core for mechanical load carrying.
A silicone rubber housing with hydrophobic surface properties.
Lower weight than conventional porcelain products used for similar applications.
An integrated shed design for reliable sealing and outdoor performance.
Customizable creepage distance, top configuration and bottom mounting fitting.
Suitability for humid, polluted, coastal and UV-exposed environments.
IEC 61952 covers composite line post insulators consisting of a fiber-reinforced resin load-bearing core, an elastomeric housing and end fittings permanently attached to the core.
Core Features
Reliable electrical insulation
The insulation height, arcing distance and creepage distance are designed to meet the insulation coordination requirements of 36kV overhead systems.Strong pollution performance
The hydrophobic silicone rubber surface helps restrict the formation of continuous conductive water films under wet and polluted conditions.High mechanical capability
The fiberglass core withstands conductor weight, wind loading, ice loading and operational cantilever stress.Lightweight construction
Its composite structure reduces transportation weight, installation effort and mechanical loading on the crossarm.Weather and aging resistance
The external housing is designed to withstand ultraviolet radiation, ozone, moisture and temperature variation.Impact-resistant design
The polymeric structure is less susceptible to brittle breakage during transportation and field installation than conventional porcelain construction.Custom mounting configurations
Top grooves, conductor clamps, threaded fittings and base fittings can be adapted to different crossarm and conductor arrangements.
A 36kV composite pin insulator can be configured for installation on either steel or wooden crossarms, depending on its bottom fitting design.
Product Structure
Fiberglass core rod
The fiberglass-reinforced epoxy resin rod is the main load-bearing component and provides bending and tensile strength.Silicone rubber housing and sheds
The weather sheds increase the creepage distance and protect the core from moisture, pollution and outdoor environmental exposure.Top conductor connection
The top may use a tie-top groove, conductor clamp or another project-specific connection.Bottom mounting fitting
The lower fitting secures the insulator to a steel crossarm, wooden crossarm or dedicated mounting bracket.End sealing system
The interfaces between the fiberglass rod, silicone housing and metal fittings are sealed to prevent the ingress of moisture and contaminants.Optional protection accessories
Electric-field control or protective accessories may be supplied for special insulation coordination, high-altitude or lightning-intensive applications.
Technical Specifications
| Parameter | Typical Specification |
|---|---|
| Product name | 36kV Pin Type Composite Insulator |
| Rated voltage | 36kV |
| System | AC overhead distribution system |
| Rated frequency | 50Hz or 60Hz |
| Housing material | High-temperature vulcanized silicone rubber |
| Core material | Fiberglass-reinforced epoxy resin rod |
| Specified cantilever load, SCL | 3kN, 5kN, 8kN or 10kN |
| Minimum nominal creepage distance | Approximately 900–1120mm, customizable |
| Lightning impulse withstand voltage | Typical reference: 170kV peak |
| Wet power-frequency withstand voltage | Typical reference: 70kV RMS |
| Installation | Vertical crossarm mounting or customized |
| Top connection | Tie-top groove or conductor clamp |
| Bottom connection | Threaded pin, base fitting or customized fitting |
| Metal fitting material | Hot-dip galvanized steel or specified material |
| Housing color | Grey, red or customized |
| Service condition | Outdoor |
| Ambient temperature | Typical range: −40°C to +50°C |
| Applicable standards | IEC 61952, IEC 62217 or project specification |
| Packaging | Carton, wooden case or export packaging |
Product Structure
Main Applications
The 36kV polymer pin insulator is commonly used in:
36kV overhead distribution lines for supporting conductors on straight-line poles.
Urban distribution networks serving industrial and suburban areas.
Rural distribution systems requiring lightweight and reliable outdoor insulation.
Industrial power networks exposed to dust, chemicals or environmental contamination.
Coastal power lines operating under humid and salt-fog conditions.
Wind farm collector lines using compatible 36kV overhead configurations.
Solar power plant outgoing lines operating at the applicable distribution voltage.
Line construction and retrofit projects replacing selected conventional porcelain insulation components.
Testing Capability
Wishpower can perform material inspection, production inspection, routine testing, sample testing and type-test support according to the applicable product specification.
Visual and dimensional inspection
Verification of product height, insulation distance, creepage distance, shed dimensions, fitting dimensions and surface quality.Cantilever load testing
Evaluation of the insulator’s mechanical performance under the specified bending load.Power-frequency withstand testing
Verification that the product withstands the specified AC test voltage without flashover or puncture.Lightning impulse withstand testing
Evaluation of insulation performance under standardized lightning impulse voltage.Sealing inspection
Examination of the interfaces between the core, housing and metal fittings.Galvanizing inspection
Inspection of the coating condition and corrosion protection of hot-dip galvanized fittings.Silicone rubber material testing
Testing may include hardness, tensile strength, tear strength, hydrophobicity and aging performance.Interface and assembly inspection
Verification of the bonding and assembly quality between the fiberglass core, silicone rubber housing and end fittings.Sample and type-test support
Product verification can be arranged according to IEC, ANSI or customer-specific technical requirements. Manufacturers of composite pin insulators commonly provide sampling and type-test capability according to relevant IEC and ANSI requirements.
Packaging & Transportation
To keep products safe during transportation and storage, we use the following packaging methods:
- Individual Packaging: Each product is wrapped with protective film, packed in a high-strength carton, and cushioned with buffer materials.
- Pallet Packaging: Multiple products are fixed on wooden pallets and wrapped with stretch film, suitable for container shipping.
- Export Packaging: Fumigated wooden cases, moisture-proof treatment, and detailed packing lists are provided according to sea freight requirements.
Customization Service
WishPower can provide the following customization options according to customer requirements:
- Structural Dimensions: Adjust overall height, creepage distance, shed quantity, and shed diameter.
- End Fittings: Customize ball-socket, tongue-clevis, eye, or other interface types according to connection requirements.
- Color: Standard gray, with red, yellow, blue, and other colors available subject to MOQ.
- Special Environments: Formulations for extreme cold (-60 C), strong UV exposure, heavy pollution, and other harsh conditions.
- Voltage Classes: Full-range customization from 10kV to 1000kV.
- Marking: Customer logos or model numbers can be molded or printed on the product.
For specific customization requirements, please contact our sales engineers. We will provide a technical solution within 24 hours.
FAQ
Q: Can you provide customized insulation products?
A: Yes. WishPower supports customized voltage ratings, creepage distances, fittings, colors and drawings according to project requirements.
Q: What information should I provide for a quotation?
A: Please provide voltage level, product type, quantity, application environment, standard, drawings or technical specifications if available.
Q: What standards can your products meet?
A: Our products can be designed and tested according to IEC, ANSI, GB and customer-specific technical requirements.
Q: Can you supply complete products for transmission and distribution projects?
A: Yes. We can provide composite insulators, surge arresters, fuse cutouts, insulating bushings and related power insulation products.
Q: How do I choose the right composite insulator for my project?
A: You can provide voltage level, installation type, mechanical load, creepage distance and operating environment. Our team will recommend the suitable model.
