I understand you need information about arc-resistant phenyl silicone rubber specifically designed for high-voltage electrical equipment. This material combines the temperature resistance of phenyl silicone rubber with excellent arc resistance, making it a key insulating material in high-voltage electrical equipment.


Core Characteristics
Arc-resistant phenyl silicone rubber exhibits the following key characteristics in high-voltage electrical equipment:
Excellent Electrical Insulation Performance
* Possesses extremely high resistivity and excellent electrical insulation performance.
* Electrical performance changes very little with moisture, frequency variations, and temperature increases.
* Does not easily char during arc discharge; the silica produced during combustion remains an insulator.

Wide Temperature Range Stability
* Outstanding high-temperature resistance; can operate continuously at 180℃ and momentarily above 300℃.
* Good low-temperature resistance; generally still works at -55℃; can reach -73℃ after introducing phenyl groups.

Excellent Arc Resistance
* Resists material degradation caused by high-voltage arcs.
* Does not easily form carbonized conductive paths under arc conditions.
* Suitable for high-voltage electrical switch materials such as circuit breakers and fuses.

Main Application Areas
Based on the above characteristics, arc-resistant phenyl silicone rubber has important applications in the following areas:

High-voltage cable accessories
High-voltage AC cable terminals and joints
High-voltage DC cable accessories
Cable insulation layers and insulating gaskets for electronic equipment

Aerospace electrical systems
Cable insulation protection
Insulating components for electronic equipment
Safety protection of electrical systems in flight
High and low voltage power transmission and transformation systems
External insulation treatment for conductors, busbars, transformers, etc.
Insulation protection for high-temperature electrical equipment such as induction coils and electric furnace coils

Material Selection Recommendations

If you are selecting insulation materials for high-voltage electrical equipment, it is recommended to prioritize Wacker's FD series 107 silicone rubber products. These products are specifically optimized for arc resistance and corona resistance and have a good reputation in the industry.

For specific application scenarios, it is recommended to consult professional material suppliers to select the most suitable phenyl silicone rubber model based on the voltage level, operating temperature, and environmental conditions of the equipment.