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Support Insulator

Name: Support Insulator
Brand: RAJNANDINEE ENGINEERS PVT LTD
Price: 19000.0 INR
Availability: InStock

Price 19000.0 INR/ Piece

Get a Price/Quote

MOQ : 100 Pieces

Support Insulator Specification

Phase
Single or Three-phase system compatible

Size
Custom/Standard sizes available (example image: approx. 200-300 mm height, 150-250 mm diameter)

Application
Electrical support, Busbar and cable support in switchgear and panels

Frequency
50/60 Hz

Color
Black

Product Type
Support Insulator

Load Capacity
Heavy duty (suitable for equipment and busbar support)

Material
Epoxy Resin (or Porcelain/Ceramic as generally used for support insulators)

Finish
Smooth, glazed or semi-gloss finish

Tensile Strength
High tensile strength - typically 10 to 40 MPa (varies by material)

Dimension (L*W*H)
Cylindrical - Approx. Diameter 200 mm x Height 250 mm (example observation)

Rated Voltage
Up to 33 kV (depends on specific requirement)

Standards Compliance
IS, IEC or ANSI Standard (based on region)

Mounting
Bolt-mount/through-hole design

Water Absorption
Low (less than 0.5% for Epoxy Resin insulators)

Dielectric Strength
Greater than 18 kV/mm (material dependent)

Flame Retardant Property
Yes (self-extinguishing material used)

Weight
Approx. 3-5 kg per piece depending on dimension

Thermal Endurance
-40C to +120C operating range

Creepage Distance
As per voltage rating, typically 25 mm/kV or higher

Surface Resistance
>10^12 Ohm (high insulation resistance)

Support Insulator Trade Information

Minimum Order Quantity
100 Pieces

Delivery Time
7 Days

About Support Insulator

Support insulators are electrical insulating components designed to provide mechanical support and electrical insulation for live conductors, busbars, and other energized equipment in power distribution and electrical systems. They help maintain proper spacing between conductive parts and grounded structures while ensuring safe and reliable operation.

Support insulators are commonly manufactured from high-quality materials such as epoxy resin, porcelain, ceramic, or composite polymers, offering excellent dielectric strength, high mechanical durability, and resistance to heat, moisture, and environmental conditions. They are widely used in switchgear, transformers, control panels, substations, bus duct systems, and other electrical installations.

High Dielectric Strength for Maximum Safety

Engineered for superior electrical performance, these support insulators feature a dielectric strength greater than 18 kV/mm (depending on material), ensuring effective isolation even in demanding voltage environments. This is critical for maintaining system integrity and preventing electrical breakdowns, especially in high-voltage switchgear and panels.

Versatile Application and Mounting Solutions

Designed for flexibility, the support insulators are suitable for single- or three-phase systems and can be bolt-mounted or installed through pre-drilled holes. Their robust build enables heavy-duty support for busbars, cables, and other electrical equipment, ensuring stability and easy integration in new or retrofit projects.

Durable, Flame-Retardant, and Compliant

These insulators combine a smooth, glazed finish with self-extinguishing properties for maximum fire safety. They also boast high thermal and mechanical endurance, low moisture uptake, and are available in compliance with IS, IEC, or ANSI standards. This ensures reliable, long-term operation while meeting stringent industry requirements.

FAQ's of Support Insulator:

Q: How do support insulators enhance electrical safety in switchgear panels?

A: Support insulators provide robust electrical isolation and mechanical support, reducing the risk of short circuits, flashover, or equipment failure. Their high dielectric strength (over 18 kV/mm) and excellent surface resistance help maintain reliable insulation between live components.

Q: What materials are commonly used for these support insulators and why?

A: Epoxy resin, porcelain, and ceramic are commonly used due to their high dielectric properties, low water absorption rates, thermal stability, and mechanical strength. Epoxy resin insulators, in particular, offer superior flame retardancy and reduced water absorption (<0.5%), making them suitable for harsh environments.

Q: When should I select custom-sized support insulators over standard sizes?

A: Custom-sized insulators are ideal when your installation involves unique panel layouts or non-standard busbar dimensions. Standard sizes fit typical applications, but custom options ensure perfect alignment, mounting, and voltage clearance in specialized or space-constrained environments.

Q: Where are these insulators most effectively used?

A: Support insulators are best deployed in high-voltage switchgear, busbar systems, control panels, and electrical distribution boards. They are designed for both indoor and outdoor installations in industrial settings requiring up to 33 kV insulation and robust load support.

Q: What is the installation process for bolt-mounted support insulators?

A: The installation process involves securing the insulator to a grounded base or metal frame using bolts through provided holes. Ensure correct alignment and torque as per the manufacturer's specifications for optimal mechanical strength and electrical clearance.

Q: How does low water absorption and flame retardancy benefit long-term performance?

A: Low water absorption ensures the insulator maintains high insulating properties even in humid conditions, preventing leakage currents. Flame-retardant, self-extinguishing materials minimize fire hazards and enhance equipment safety during overcurrent or fault conditions.

Q: What compliance standards do these support insulators meet?

A: Support insulators comply with IS, IEC, or ANSI standards, as suited to the regional requirements. This guarantees performance, safety, and quality in electrical applications across India and global markets.

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