11kV Post Type Composite Insulator – Factory Price & Custom Design

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Electrical & Grid

Composite Insulator

11kV Post Type Composite Insulator – Factory Price & Custom Design

Brand: WISHPOWER
Catalog ID: FZSW
Standard: GB/T 19519-2014, IEC 61109
Features: The injection process is adopted, the core rod and the sheath are bonded seamlessly, the internal insulation performance is good, and the interface breakdown phenomenon can be avoided
Lightweight, Durable, High-strength, Weather-resistant, Low-maintenance, High-voltage
Structure: It is composed of an umbrella sleeve, core rod, and end fittings.
Color: Red, Grey, Blue, Yellow, Other
The product's dimension, characteristics, connection method, and shed color can be designed and manufactured according to the customer's specific requirements.

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DESCRIPTION

Product Description

The 11kV post type insulator is a critical component in medium-voltage power systems, ideal for substations, distribution lines, and switchgear operating at 11kV. Made with advanced composite materials, this insulator outperforms traditional porcelain in weight, durability, and pollution resistance. With superior insulation and mechanical strength, it ensures long-term reliability even in harsh environments.

Structure and Materials

The insulator consists of a high-strength fiberglass core rod, premium silicone rubber housing, and galvanized metal end fittings. The fiberglass rod delivers high tensile strength, while the silicone rubber sheath provides excellent hydrophobicity and UV resistance. The hot-dip galvanized fittings ensure corrosion resistance and secure mechanical connections.

Technical Specifications

Specification	Value
Rated Voltage	11 kV
Dry Power Frequency Withstand	≥ 45 kV
Wet Power Frequency Withstand	≥ 35 kV
Lightning Impulse Withstand	≥ 75 kV
Bending Load Capacity	≥ 5 kN
Creepage Distance	≥ 250 mm
Housing Material	Silicone rubber
Core Material	E-glass epoxy rod
End Fitting Material	Hot-dip galvanized steel
Operating Temperature	-40℃ to +85℃
Pollution Class	Class IV (Heavy Pollution)

Performance Features

High insulation performance with excellent hydrophobicity.
Lightweight design enables easier transport and installation.
Superior pollution resistance suitable for coastal or industrial areas.
UV and aging resistant for reliable long-term operation.
Low maintenance requirements reduce operation costs.

Application Scope

Widely used in 11kV distribution networks, including urban and rural grid upgrades, solar and wind power plants, mining operations, and rail electrification.

Customization Services

We provide OEM/ODM customization options including different creepage distances, end fittings, insulation shed types, and anti-pollution grades to meet various engineering requirements.

Factory Price Advantage

WishPower offers direct factory pricing with full technical support and strict quality assurance. Our complete in-house production ensures competitive prices and fast delivery.

WishPower is a professional manufacturer of composite insulators. We support various industrial applications. If you need to purchase electrical equipment, feel free to contact us for a quote.

Video

Resources and downloads

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