Composite Insulators

Brand:Dosense Cable

Category:Cable Accessories

Voltage Rating: The maximum voltage that the insulator can withstand without electrical breakdown or flashover. Voltage ratings can range from low voltage to extra-high voltage (EHV) levels. Material Composition: Core Material: Typically ma...

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Voltage Rating: The maximum voltage that the insulator can withstand without electrical breakdown or flashover. Voltage ratings can range from low voltage to extra-high voltage (EHV) levels.

Material Composition:

Core Material: Typically made of fiber-reinforced composite materials like fiberglass rods.

Housing Material: Usually silicone rubber, which provides electrical insulation and weather resistance.

Creepage Distance: The distance along the insulator's surface between two points at different voltages to prevent electrical arcing and leakage. Creepage distance is important for preventing flashovers.

Mechanical Strength:

Tensile Strength: The maximum force the insulator can withstand without breaking when pulled in opposite directions.

Bending Strength: The ability to resist bending forces without fracturing.

Compression Strength: The resistance to crushing or compression forces.

Pollution Performance:

Pollution Flashover Voltage: The voltage at which a composite insulator starts to flashover under polluted conditions.

Hydrophobicity: The ability of the insulator's surface to repel water and prevent surface conductivity due to wetting.

Tracking and Erosion Resistance: The ability to resist surface degradation caused by tracking (formation of electrically conductive paths) and erosion due to electrical discharges.

Temperature Range: The range of temperatures within which the insulator can effectively operate without compromising its performance.

Corona Resistance: The ability to suppress corona discharge, which can lead to power loss and radio interference.

Dimension and Configuration:

Length: The overall length of the insulator.

Diameter: The diameter of the insulator's housing.

Fitting Type: The design and configuration of the metal end fittings that attach the insulator to the structure.

Installation Torque: The recommended torque for attaching the fittings to the structure to ensure proper installation.

Electrical Data:

Leakage Current: The amount of current that flows through the insulator under normal operating conditions.

Flashover Voltage: The voltage at which a flashover occurs between the insulator's sheds or along its surface.

Certifications: Compliance with relevant international standards, such as IEC (International Electrotechnical Commission) or ANSI (American National Standards Institute).