Active Standard

IEEE 442-2017

IEEE Guide for Thermal Resistivity Measurements of Soils and Backfill Materials

The measurement of thermal resistivity of soil and backfill materials to include concrete, engineered backfills, grout, rock, sand, and any other material used to encase the cable system installed in the ground is covered in this guide. A thorough knowledge of the thermal properties of a soil or backfill material enables the user to properly design, rate, and load underground cables. The method used is based on the theory that the rate of temperature rise of a line heat source is dependent upon the thermal constants of the medium in which it is placed. The designs for both laboratory and field thermal probes are also described in this guide.

Standards Committee
PE/IC - Insulated Conductors
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Status
Active Standard
PAR Approval
2016-12-07
Superseding
442-1981
Board Approval
2017-09-28
History
Published:
2018-05-07

Working Group Details

Society
IEEE Power and Energy Society
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Standards Committee
PE/IC - Insulated Conductors
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Working Group
C25W/P442_WG - Working Group for Guide for Soil Thermal Resistivity Measurements - IEEE 442
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IEEE Program Manager
Ron Hotchkiss
Contact
Working Group Chair
Nimesh Patel

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442-1981

IEEE Guide for Soil Thermal Resistivity Measurements

A method for measurement of soil thermal resistivity that is based on the theory that the rate of temperature rise of a line heat source is dependent upon the thermal constants of the medium in which it is placed is given. This information will enable the user to properly install and load underground cables. The aim is to provide sufficient information to enable the user to select useful commercial test equipment, or to manufacture equipment that is not readily available on the market, and to make meaningful resistivity measurements with this equipment, in the field or on soil samples in the laboratory. Designs for both laboratory and field thermal needles are described.

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These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.


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