INDUSTRY COMPONENT

Insulating Supports

Insulating supports are electrical components that provide mechanical support and electrical insulation for bus bars in power distribution systems.

View Specifications

Component Specifications

Definition
Insulating supports are critical components in bus bar assemblies designed to maintain precise spacing and alignment between conductive bus bars while ensuring complete electrical isolation from grounded structures. These components prevent short circuits, reduce electromagnetic interference, and enhance system safety by withstanding high voltage stresses and mechanical loads in industrial electrical installations.
Working Principle
Insulating supports function by utilizing dielectric materials with high electrical resistance to create physical barriers between conductive bus bars and grounded metal frames. They maintain predetermined clearances as per electrical safety standards, preventing current leakage and arc flash incidents while supporting the weight and thermal expansion of bus bars during operation.
Materials
High-performance thermoset polymers (epoxy resins, phenolic compounds), ceramic composites, or glass-reinforced plastics with minimum CTI (Comparative Tracking Index) of 600V, dielectric strength ≥15 kV/mm, UL94 V-0 flammability rating, and continuous operating temperature range of -40°C to 155°C.
Technical Parameters
  • Voltage Rating Up to 36kV AC
  • Mechanical Load ≥500N static
  • Creepage Distance ≥20mm/kV
  • Flammability Class UL94 V-0
  • Tracking Resistance CTI ≥600
  • Insulation Resistance ≥1000 MΩ at 500VDC
  • Operating Temperature -40°C to 155°C
Standards
IEC 62271, UL 94, ASTM D3638, ISO 178

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Insulating Supports.

bus bar insulation electrical insulating supports high voltage insulators dielectric supports power distribution components Insulating Supports Insulating Supports in Electrical Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Bus Bar Assembly

A conductive assembly that distributes electrical power within a circuit breaker panel by connecting multiple circuit breakers to the main power source.

View Product Details

Electrode array

A structured arrangement of multiple electrodes designed to create uniform electric fields within an ionization chamber.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Dielectric breakdown under overvoltage conditions
  • Mechanical failure from vibration or thermal stress
  • Tracking and erosion from contamination
  • Thermal degradation at high temperatures
FMEA Triads
Trigger: Material contamination or moisture absorption
Failure: Reduced insulation resistance leading to leakage current
Mitigation: Use hydrophobic materials with sealed designs and regular insulation resistance testing
Trigger: Excessive mechanical stress from bus bar expansion
Failure: Cracking or deformation compromising dielectric clearance
Mitigation: Design with adequate mechanical strength and flexibility, incorporate expansion joints
Trigger: Surface contamination in harsh environments
Failure: Tracking and eventual flashover
Mitigation: Specify materials with high CTI ratings, implement regular cleaning schedules

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerance ±0.5mm, dielectric strength tolerance +0/-10% of rated value
Test Method
Dielectric withstand test per IEC 60243, mechanical load test per ISO 178, thermal cycling per IEC 60068-2-14

Buyer Feedback

★★★★☆ 4.6 / 5.0 (27 reviews)

"Standard OEM quality for Electrical Equipment Manufacturing applications. The Insulating Supports arrived with full certification."

"Great transparency on the Insulating Supports components. Essential for our Electrical Equipment Manufacturing supply chain."

"The Insulating Supports we sourced perfectly fits our Electrical Equipment Manufacturing production line requirements."

Related Components

Alignment System
Precision alignment system for industrial wireless power transfer modules ensuring optimal energy coupling efficiency.
Winding Spindle
A precision rotating shaft in transformer winding machines that holds and rotates the coil form during wire winding operations.
Arc Plates
Arc plates are metallic plates within circuit breaker arc chutes that split and cool electrical arcs during interruption to ensure safe circuit disconnection.
Insulating Housing
Insulating housing for circuit breaker arc chutes that provides electrical isolation and thermal protection.

Frequently Asked Questions

What is the primary function of insulating supports in bus bar assemblies?

The primary function is to provide both mechanical support to maintain bus bar positioning and electrical insulation to prevent short circuits between conductors and grounded structures.

How do temperature variations affect insulating supports?

Quality insulating supports are designed with materials having low thermal expansion coefficients to maintain dimensional stability and dielectric properties across operating temperature ranges from -40°C to 155°C.

What standards apply to insulating supports for industrial applications?

Key standards include IEC 62271 for high-voltage switchgear, UL 94 for flammability, ASTM D3638 for voltage endurance, and ISO 178 for mechanical properties.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Insulating Supports

Insulating Substrate/Frame Insulation Body