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11kV Composite Polymer Disc Insulator

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11kV Composite Polymer Disc Insulator Specification

Alkali Resistance
Excellent

Thickness
Approx. 80 mm (disc part)

Weight
1.2 - 1.5 kg per piece

Length
280 - 320 mm (total insulator length)

Color
Grey/Red

Operating Temperature
-40C to +60C

Acid Resistance
Excellent

Hardness
605 Shore A (Silicone rubber housing)

Chemical Name
Composite Polymer (Silicone Rubber) Insulator

Other Names
11kV Polymer Disc Insulator; Silicone Composite Insulator

Appearance
Disc-shaped insulator with grey/red silicon polymer housing and galvanized metal end fittings

Physical State
Solid

Raw Material
Silicone rubber, fiberglass reinforced resin core (FRP), hot-dip galvanized steel end fittings

Insoluble %
100%

Creepage Distance
320 mm min.

Type
Composite Polymer Disc Insulator

Application
Overhead Transmission and Distribution Line

Tracking & Erosion Resistance
High

Dielectric Strength
High; suitable for outdoor and polluted environments

Standard
IS:14255 / IEC 61109

Design
Hydrophobic Surface; Fog Type Available

Minimum Mechanical Failing Load (SML)
70 kN

Wet Power Frequency Withstand Voltage
27kV

End Fitting Type
Ball & Socket / Tongue & Clevis

Tensile Strength
70 kN

UV Resistance
Excellent

Dry Power Frequency Withstand Voltage
35kV

Rated Voltage
11kV

Storage Life
More than 30 years

Impact Resistance
High

About 11kV Composite Polymer Disc Insulator

11kv 45KN T/C Type Composite Polymer Disc Insulator-

Normal System Voltage 11kV
Highest System Voltage 12kV
System Frequency 50Hz
Wet 1 Minute Power Frequency Withstand Voltage-35kv(Rms)
Dry 1 Minute Power Frequency Withstand Voltage 50kv(Rms)
Dry Lightning Impulse Withstand Voltage - 75kvp
Visible Discharge Test Voltage 9k(Rms)
Specified Mechanical Load - 45KN

Engineered for Reliability

Featuring robust silicone rubber housing and a strong FRP core, this disc insulator withstands mechanical loads up to 70 kN. It excels in harsh climates due to its hydrophobic, high dielectric surface and fog-resistant design, ensuring consistent electrical performance over decades.

Superior Environmental Resistance

The insulator demonstrates remarkable resistance to UV radiation, acid, alkali, and difficult weather conditions. Its excellent tracking and erosion resistance make it suitable for areas prone to pollution, while its solid construction ensures maintenance-free reliability.

Flexible Installation Options

Designed with both Ball & Socket and Tongue & Clevis end fittings, this polymer disc insulator suits diverse line configurations. Light weight (1.2-1.5 kg) and easy handling facilitate seamless installation and replacement processes by suppliers and traders nationwide.

FAQ's of 11kV Composite Polymer Disc Insulator:

Q: How is the 11kV Composite Polymer Disc Insulator typically used in electrical systems?

A: This insulator is primarily used in outdoor overhead transmission and distribution lines, providing crucial insulation between the conductors and supporting structures, thereby preventing current leakage and enhancing system reliability.

Q: What are the benefits of using a composite polymer disc insulator over traditional porcelain?

A: Composite polymer insulators are lighter, possess higher impact and UV resistance, and exhibit superior performance in polluted or coastal environments due to their hydrophobic and erosion-resistant surface. These features result in easier handling and longer service life compared to porcelain alternatives.

Q: When should I choose the fog type variant of this insulator?

A: The fog type design is recommended for areas with high humidity, frequent mist, or pollution, as its specialized profile enhances insulation performance by minimizing surface contamination and flashover risks under wet or foggy conditions.

Q: Where can these insulators be installed within an electrical network?

A: They are suitable for installation on various structures, including transmission towers, distribution poles, and substations, especially in outdoor and harsh environmental conditions prevalent across India.

Q: What is the installation process for this composite disc insulator?

A: Installation involves securely mounting the insulator to overhead conductors and support hardware using its Ball & Socket or Tongue & Clevis fittings. The process is straightforward due to the insulator's lightweight and robust construction, reducing labor time and physical strain.

Q: How does the product perform in polluted or coastal regions?

A: Thanks to its hydrophobic silicone rubber housing and high tracking and erosion resistance, the insulator maintains dielectric strength and reliability even under heavy pollution or saline environments, making it ideal for such challenging locations.

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