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11kv Composite Polymer Pin Insulator

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11kv Composite Polymer Pin Insulator Specification

Alkali Resistance
Excellent

Acid Resistance
Excellent

Molecular Formula
N/A (Composite)

Weight
Approx 1 - 1.2 kg

Hardness
>70 Shore A (Silicone Rubber Housing)

Viscosity
N/A (Solid)

Color
Red / Grey

Moisture Content
N/A (Solid Material)

Thickness
As per design, typically 40 to 55 mm

Operating Temperature
-40C to +90C

Length
230-320 mm (available range)

Chemical Name
Composite Polymer (Silicone Rubber) Insulator

Other Names
11kV Polymer Pin Insulator, Composite Pin Insulator

CAS No
N/A (Composite Material)

Purity
N/A (Engineering Composite)

Appearance
Solid pin-shaped insulator with metal fittings

Physical State
Solid

Raw Material
HTV Silicone Rubber, FRP Rod, Galvanized Steel Fittings

Molecular Weight
N/A (Composite)

Dissolving Time
Insoluble

Insoluble %
100%

UV Resistance
Excellent

Rated Mechanical Failing Load (RMFL)
5 kN to 10 kN

Rated Voltage
11 kV

Housing Material
HTV Silicone Rubber

Water Absorption
<0.1% (Housing Material)

Flame Resistance
Yes

Resistance to Tracking and Erosion
Compliant with IEC 60587

Minimum Arc Distance
160 mm

Standard
IS:14243 / IEC 61109

End Fittings
Hot-dip Galvanized Steel

Creepage Distance
320 mm (typical)

Lightning Impulse Withstand Voltage
75 kV

Core Material
Epoxy Glass Fiber Reinforced Plastic (FRP)

Power Frequency Withstand Voltage (Dry/Wet)
35/25 kV

Application
Overhead Distribution Lines

Cantilever Strength
Minimum 5 kN

About 11kv Composite Polymer Pin Insulator

11kv 5kn Composite Polymer Pin 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 : 9kv(Rms)
Specified Mechanical Load : 5KN

Engineered for Durability and Safety

Made from HTV silicone rubber and FRP core, this 11kV pin insulator offers excellent resistance to environmental factors, including UV, acids, and alkalis. Its robust design, with a minimum mechanical strength of 5 kN, ensures long-term reliability even in harsh climates, making it a trusted solution for high-performance power distribution.

Superior Electrical Performance

Designed with a creepage distance of 320 mm and a minimum arc distance of 160 mm, the insulator provides outstanding resistance against flashovers and tracking. Its power frequency withstand voltage (dry/wet) of 35/25 kV and lightning impulse withstand voltage of 75 kV offer maximum protection against electrical surges and adverse weather conditions.

Compliant with Global Standards

Manufactured according to IS:14243 and IEC 61109 standards, this composite polymer insulator guarantees compliance and compatibility for Indian and international distribution networks. Its flame-resistant and water-repellent properties, along with rigorous testing compliance, provide peace of mind for installation and operation.

FAQ's of 11kv Composite Polymer Pin Insulator:

Q: How should the 11kV Composite Polymer Pin Insulator be installed on overhead distribution lines?

A: The insulator is mounted on the distribution pole using its hot-dip galvanized steel end fittings. Ensure the pin is securely inserted and tightened according to manufacturer guidelines, maintaining appropriate spacing and alignment for optimal performance.

Q: What benefits does HTV silicone rubber provide in the insulator's housing material?

A: HTV (High Temperature Vulcanized) silicone rubber offers superior resistance to UV radiation, acid, alkali, flame, and water absorption. This enhances insulator longevity, reduces maintenance, and supports reliable operation in aggressive outdoor environments.

Q: When should a composite polymer pin insulator be preferred over traditional ceramic insulators?

A: Composite polymer insulators are ideal for installations prone to environmental pollution, vandalism, or areas requiring minimal maintenance. Their lightweight nature and higher resistance to tracking, erosion, and mechanical shock make them preferable in modern distribution projects.

Q: Where is this 11kV composite pin insulator typically used?

A: This insulator is commonly used in overhead power distribution networks, especially for 11 kV lines across industrial, residential, and rural infrastructures in India and other regions following IEC standards.

Q: What is the typical process for quality assurance during the manufacturing of this insulator?

A: Each insulator undergoes routine testing for power frequency withstand voltage, lightning impulse, mechanical failing load, and water absorption. Compliance with IS:14243 and IEC 61109 is verified to ensure performance reliability and safety in the field.

Q: How does the insulator protect against electrical surges and environmental stress?

A: With a dry/wet power frequency withstand voltage of 35/25 kV and a lightning impulse withstand voltage of 75 kV, coupled with a creepage distance of 320 mm, the insulator offers robust defense against electrical surges, pollution, and weather-induced flashover.

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