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2. Trace heating - Wikipedia

   en.wikipedia.org/wiki/Trace_heating

   Electric heat tracing, heat tape or surface heating, is a system used to maintain or raise the temperature of pipes and vessels using heat tracing cables. Trace heating takes the form of an electrical heating element run in physical contact along the length of a pipe.

3. Direct-buried cable - Wikipedia

   en.wikipedia.org/wiki/Direct-buried_cable

   Cross-section of direct buried cable. Direct-buried cable (DBC) is a kind of communications or transmissions electrical cable which is especially designed to be buried under the ground without any other cover, sheath, or duct to protect it. [1] Most direct-buried cable is built to specific tolerances to heat, moisture, conductivity, and soil ...

4. Soil thermal properties - Wikipedia

   en.wikipedia.org/wiki/Soil_thermal_properties

   Example of a complete system for measurement of soil thermal conductivity, specially designed for measurements at around 1.5 meters below the soil surface, which is the typical depth of burial for high voltage cables. After further research the dual-probe heat-pulse technique was developed.

5. Mineral-insulated copper-clad cable - Wikipedia

   en.wikipedia.org/wiki/Mineral-insulated_copper...

   MI cable is only manufactured with ratings up to 1000 volts. The magnesium oxide insulation has a high affinity for moisture. Moisture introduced into the cable can cause electrical leakage from the internal conductors to the metal sheath. Moisture absorbed at a cut end of the cable may be driven off by heating the cable.

6. Electrical resistance heating - Wikipedia

   en.wikipedia.org/wiki/Electrical_resistance_heating

   Electrical resistance heating (ERH) is an intensive in situ environmental remediation method that uses the flow of alternating current electricity to heat soil and groundwater and evaporate contaminants. [1] Electric current is passed through a targeted soil volume between subsurface electrode elements.

7. List of thermal conductivities - Wikipedia

   en.wikipedia.org/wiki/List_of_thermal_conductivities

   Soil A r* = 0.7: K = 3.953 W ⋅ m −1 ⋅ K −1 Soil B r = 0.8: K = 3.348 List [121] 268.15 ± 2K In this sample of two there is one very dirty kind of ice that conducts heat at nearly twice the rate of plain ice. *r ≡ The ratio of the water mass to the dried mass. Solder, Sn/63% Pb/37% 50 [122]