FXBW4-35/70 Composite Suspension Insulator
The FXBW4-35/70 composite suspension insulator is designed to provide electrical insulation and tensile mechanical support for conductors used on 35 kV outdoor overhead power lines. The model designation identifies a 35 kV voltage class and a specified mechanical load of 70 kN.
The insulator uses a composite long-rod construction consisting of a load-bearing fiberglass-reinforced resin core, an external polymeric insulating housing with multiple sheds, and metal end fittings. The exact housing compound, end-fitting configuration, dimensions and electrical performance must be confirmed against the approved product drawing and project specification.
Key Features
• Designed for 35 kV outdoor overhead power lines
• Specified mechanical load of 70 kN
• Composite long-rod construction
• Polymeric multi-shed insulating profile
• Fiberglass-reinforced load-bearing core
• Metal end fittings for connection to line hardware
• Lightweight construction compared with conventional multi-unit porcelain strings
• End-fitting configuration available according to approved drawings
• Suitable for suspension or tension assemblies when technically confirmed
Technical Information
Model: FXBW4-35/70
Product Type: Composite Suspension Insulator
Insulator Construction: Composite Long Rod
Rated Voltage: 35 kV
Specified Mechanical Load: 70 kN
Insulating Housing: Polymeric Material
Core Material: Fiberglass-Reinforced Resin Rod
Shed Color: Red
Installation Environment: Outdoor
Primary Application: Overhead Power Lines
End-Fitting Configuration: According to Approved Drawing
Structural Height: To Be Confirmed Against Product Drawing
Creepage Distance: To Be Confirmed Against Project Requirements
Arcing Distance: To Be Confirmed Against Product Drawing
Coupling Size: To Be Confirmed Against Connection Requirements
Electrical Withstand Levels: To Be Confirmed Against Test Documentation
Construction and Materials
The internal fiberglass-reinforced resin rod carries the tensile mechanical load of the insulator. The external polymeric housing and sheds provide electrical insulation and protect the core from outdoor environmental exposure.
Metal end fittings are mechanically connected to the load-bearing core. Their material, dimensions, connection type and corrosion-protection treatment are selected according to the approved assembly drawing and the mating line hardware.
The red shed profile shown represents the supplied product configuration. The exact polymer formulation and material test requirements must be confirmed before being included in the final technical data sheet.
Applications
The FXBW4-35/70 composite suspension insulator can be selected for:
• 35 kV overhead distribution and sub-transmission lines
• Suspension insulator assemblies
• Tension or dead-end assemblies with compatible end fittings
• Conductor-to-pole or conductor-to-tower insulation
• New line construction
• Maintenance and replacement projects
• Rural and utility power networks
Final suitability depends on the required creepage distance, pollution severity, altitude, conductor load, line configuration, end fittings and applicable utility specification.
Applicable Standards
Where specified by the purchaser and supported by the corresponding design and test documentation, the product may be manufactured and inspected with reference to applicable requirements of IEC 61109 for composite suspension and tension insulators used on overhead power lines.
A reference to IEC 61109 does not mean that every FXBW4-35/70 configuration has automatically been certified. Compliance must be confirmed using the exact product drawing, test requirements and corresponding test report.
Quality Control
Inspection and testing requirements can include:
• Dimensional inspection
• Visual inspection of housing and sheds
• End-fitting and crimping inspection
• Mechanical tensile-load testing
• Electrical withstand testing
• Galvanizing or corrosion-protection inspection
• Marking and packaging inspection
The final inspection plan and acceptance criteria are agreed according to the purchase specification and approved technical documents.
Information Required for Selection
Please provide the following information before quotation:
• System voltage
• Required mechanical load
• Required creepage distance
• Structural height
• End-fitting type and coupling dimensions
• Suspension or tension installation
• Pollution and environmental conditions
• Required electrical withstand levels
• Applicable standard and test documents
• Quantity, marking and packaging requirements
Customization
Structural height, shed profile, creepage distance, end fittings, coupling dimensions, marking and packaging can be evaluated according to approved drawings and order requirements.
Request Technical Confirmation
Send us your product drawing, end-fitting requirements, required creepage distance and electrical test parameters. Our technical team will confirm the appropriate FXBW4-35/70 configuration before quotation and production.
