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.
- Sponsor Committee
- PE/IC - Insulated Conductors
Learn More - Status
- Superseded Standard
- Superseded by
- 442-2017
- Board Approval
- 1981-03-05
- History
-
- ANSI Approved:
- 1997-05-15
- ANSI Withdrawn Date:
- 2013-08-05
- Published:
- 1980-11-30
- Reaffirmed:
- 2003-03-20
Working Group Details
- Society
- IEEE Power and Energy Society
Learn More - Sponsor Committee
- PE/IC - Insulated Conductors
Learn More - Working Group
-
C25W/P442_WG - Working Group for Guide for Soil Thermal Resistivity Measurements - IEEE 442
Learn More - IEEE Program Manager
- Ron Hotchkiss
Contact - Working Group Chair
- Nimesh Patel
No Active Projects
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.
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards