ThermalRite Thermal Sand for Cable Backfill
ThermalRite thermal sand is a specialized backfill material used in underground electrical cable installations. It is engineered to improve heat transfer from buried power cables to the surrounding soil, helping maintain safe operating temperatures. This material is commonly used in utility and infrastructure projects and is available for bulk delivery or pickup.
Why Choose ThermalRite Thermal Sand
ThermalRite thermal sand is engineered to improve heat dissipation in underground cable installations. By increasing thermal conductivity between cables and the surrounding soil, it helps prevent overheating and improves system performance.
This contractor-grade material is clean, consistent, and designed to meet the thermal requirements of modern power infrastructure projects. Its reliable performance makes it suitable for utility contractors, engineers, and large-scale electrical installations.
Our Thermal Sand has been approved by the labs that test materials for PECO, PSE&G, Con Ed and Atlantic City Electric.
Material Type: Engineered thermal backfill sand.
Typical Composition: Blended sand designed to improve heat dissipation from underground cables.
Color / Texture: Red/orange in color with a clean granular texture.
Thermal Characteristics: Designed to provide controlled thermal resistivity and improve heat transfer from electrical cables to surrounding soil.
Performance Benefit: Improves the thermal environment around cables, which can increase cable ampacity by 10–15% and in some cases up to 30%.
Chemical Properties: Non-corrosive and non-reactive material suitable for electrical installations.
Delivery Options: Available through bulk sand and gravel supply services for contractor pickup or scheduled bulk delivery.
ThermalRite thermal sand is primarily used in utility and electrical infrastructure projects.
Utility Projects: Backfill around underground electrical cables.
Power Infrastructure: High-voltage cable installations and power distribution systems.
Construction: Thermal backfill for electrical conduit and cable duct banks.
Energy Projects: Substations, renewable energy infrastructure, and power transmission installations.
Industrial Installations: Facilities requiring underground electrical cable protection.
Common Uses
• Underground electrical cable backfill
• Power transmission installations
• Cable duct bank encapsulation
• Utility infrastructure projects
• Substation construction
• Renewable energy installations
• Industrial electrical infrastructure
Can thermal sand be delivered in bulk?
Yes. Thermal sand is available through sand and gravel supply services with options for bulk delivery or pickup.
Is thermal sand required for underground cable projects?
Many utility and power projects specify thermal backfill materials to meet required thermal resistivity standards and ensure reliable cable performance.
What is ThermalRite thermal sand used for?
ThermalRite thermal sand is used as backfill for underground electrical cables to improve heat transfer and maintain safe cable operating temperatures.
Why is thermal sand used around electrical cables?
Thermal sand helps transfer heat away from cables into the surrounding soil, preventing overheating and improving electrical performance.
Does thermal sand increase cable capacity?
Yes. Improved heat dissipation can increase cable ampacity by approximately 10–15%, and sometimes more depending on installation conditions.
Is thermal sand chemically reactive?
No. ThermalRite sand is non-corrosive and non-reactive, making it safe for use around electrical infrastructure.



