33/36 KV Silicon Polymeric Composite Disc Insulator

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33/36 KV Silicon Polymeric Composite Disc Insulator

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33/36 KV Silicon Polymeric Composite Disc Insulator Specification

Size
Universal standard for 33/36 kV; Typical Length: 320360 mm

Installation Guideline
Suitable for standard line hardware; maintain proper torque settings during installation

Coating Type
Composite Silicone Coating

Thermal Conductivity
0.170.20 W/mK

Layer
Triple layered with FRP core

Surface Treatment
Silicone Rubber Housed, Hydrophobic Surface

Density
1.35 Gram per cubic centimeter(g/cm3)

Product Type
Disc Insulator

Material
Silicon Polymeric Composite

Rated Voltage
33/36 kV

Tensile Strength
> 8 kN

Width
Approx. 140 mm

Thickness
Approx. 100 mm

Application
Overhead Transmission Lines

Breakdown Voltage
> 120 kV

Heat Conductivity
0.170.20 W/mK

Color
Grey

Max Withstanding Temperature
Up to 120C

Mechanical Failing Load
70 kN

Power Frequency Withstand Voltage
70 kV (1 min)

Environmental Resistance
Resistant to acid, alkali, salt fog, and UV radiation

Core Rod Material
Epoxy Resin Bonded Fiberglass (FRP)

Leakage Current
<1 mA at rated voltage

Dry Arc Distance
450480 mm

Weight
Approx. 23 kg

Impulse Withstand Voltage
170 kVp

Marking
Laser marked for traceability

Creepage Distance
900 mm or above

Packaging
Export standard wooden case or as customer requirement

About 33/36 KV Silicon Polymeric Composite Disc Insulator

33/36 KV Silicon Polymeric Composite Disc Insulator

Advantage:

Light weight
High mechanical strength
Easy to install
Vandal Proof
Resist Tracking resulting in lower line losses
Reduced leakage current
Excellent in salt, fog and severely contaminded environment
No Ultra violet, corona ozone degrading
High pollution flashover voltage
Wide range of service temperature
Wide range of service temperature -35 to +80C
Better aesthetics
Excellent hydrophobicity

33/36 KV silicon polymeric composite disc insulator ( T & C Type):

Sn. No.	Product Code	System Voltage	Specified Mechanical Load in KN	Dry Arc	Cree-page Distance in mm	Dry Power frequency Voltage with stand in KV	Wet Power frequency voltage with stand in KV	Lightning Impulse with stand in KV	Visible Discharge Test
1	BI-33/36-45/T&C	33KV	45KN	370+/- 5	860	137	111	248	27
2	BI-33/36-70/T&C	33KV	70KN	370+/- 5	860	137	111	248	27
3	BI-33/36-45/T&C/H.C	33KV	70/90N	375+/- 5	1175	154	135	248	27

Product type tested NABL approved govt. Lab ERDA, Vadodara & CPRI, Bangalore.

Approved by Govt. Electricity Department

Durable Design for Demanding Environments

Constructed with a triple-layer FRP core and silicone composite housing, the insulator provides long-lasting protection against corrosive weather, chemical exposure, and intense sunlight. The hydrophobic, UV-resistant surface maintains reliability even in the harshest field conditions, making these insulators a preferred choice for critical transmission line projects.

Superior Electrical Performance and Safety

With a creepage distance of 900 mm or above and dry arc distance of 450480 mm, this disc insulator ensures high resistance to electrical flashover. Its power frequency withstand voltage is rated at 70 kV for one minute, and impulse withstand voltage reaches up to 170 kVp, offering excellent protection for 33/36 kV transmission applications.

Efficient Installation and Traceability

Designed for compatibility with standard line hardware, these insulators are easy to install following basic torque guidelines. Each unit is laser marked for complete traceability, streamlining asset management and compliance. Secure packaging in export quality wooden cases ensures safety during transportation and delivery anywhere in India or abroad.

FAQs of 33/36 KV Silicon Polymeric Composite Disc Insulator:

Q: How is the 33/36 KV Silicon Polymeric Composite Disc Insulator installed?

A: Installation involves mounting the insulator using standard line hardware and ensuring correct torque settings for all fasteners. The universal sizing facilitates compatibility with most transmission line setups, and installation guidelines provided by the manufacturer should be followed for optimal performance.

Q: What benefits does the silicon polymeric composite material offer compared to traditional ceramic insulators?

A: Silicon polymeric composite insulators offer superior hydrophobicity, reduced leakage current, lighter weight, and high resistance to environmental factors like acid, alkali, salt fog, and UV radiation. These advantages lead to lower maintenance requirements and longer service life, enhancing overall reliability in transmission systems.

Q: When should the insulator be used for transmission applications?

A: This insulator is recommended for overhead transmission lines operating at 33/36 kV, particularly in areas prone to harsh weather or chemical exposure. Its robust electrical and mechanical attributes make it ideal for both new installations and upgrades of existing networks.

Q: Where can these disc insulators be supplied and shipped from?

A: Manufactured and exported from India, these insulators are packed in export standard wooden cases or as per customer requirements. They can be shipped nationwide or internationally as needed.

Q: What is the process for quality assurance and traceability?

A: Each insulator is laser marked for traceability, ensuring that manufacturing details are recorded for tracking and compliance purposes. Rigorous testing against electrical, mechanical, and environmental standards is conducted prior to dispatch.

Q: How does the insulator protect against electrical leakage and flashover?

A: The composite design offers a creepage distance of at least 900 mm and a dry arc distance of 450480 mm, minimizing the risk of flashover. Additionally, the leakage current remains below 1 mA at rated voltage, providing safe operation under adverse conditions.

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