When selecting high-quality insulating silicone rubber sheets, key factors include the material's insulation performance, heat resistance, mechanical strength, and environmental adaptability.

First, insulation performance is the most important consideration. High-quality silicone rubber sheets should have high dielectric strength and low conductivity to ensure effective isolation of current in high-voltage or complex electrical environments, and to ensure the safety of equipment and personnel.

Secondly, heat resistance is also one of the important factors in evaluating high-quality silicone rubber sheets. Silicone rubber materials have good high-temperature resistance and can maintain their physical properties without deformation or softening at extreme temperatures, ensuring reliable insulation protection in high-temperature environments.

Mechanical strength should also not be ignored. High-quality insulating silicone rubber sheets should have high tear resistance and abrasion resistance, and be able to withstand long-term mechanical stress and frequent operations without damage or loss of insulation effect.

In addition, environmental adaptability is key. High-quality silicone rubber sheets should be able to maintain their performance in humid, corrosive environments or under conditions of exposure to ultraviolet rays. Anti-aging, ozone resistance, and chemical corrosion resistance are essential to extend the service life of the material.

In summary, the selection of high-quality insulating silicone rubber sheets requires comprehensive consideration of their insulation properties, heat resistance, mechanical strength and environmental adaptability to ensure their safety and reliability in various electrical applications.