Title :
Steel grounding design guide and application notes
Author :
Sen, P.K. ; Malmedal, Keith ; Nelson, John P.
Author_Institution :
Colorado Sch. of Mines, Golden, CO, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
Based on the National Bureau of Standards (presently called The National Institute of Standards and Technology or "NIST") statistical data on corrosion of steel, an equation is introduced to estimate the corrosion rate of underground steel. The variables include the major soil characteristics (parameters), namely resistivity, pH value, moisture content and aeration. This formula, together with the IEEE Standard No. 80-2000, is used in the design of steel grounding. Also discussed in detail are the design procedures for a cathodic protection scheme to minimize corrosion of steel grounding. Numerical examples are included in the paper to enhance the understanding of steel grounding design for high voltage AC substations
Keywords :
IEEE standards; corrosion protection; earth electrodes; soil; steel; substations; IEEE Standard No. 80-2000; NIST; National Bureau of Standards; The National Institute of Standards and Technology; cathodic protection; conductor sizing; corrosion estimation; corrosion rate estimation; design procedures; high voltage AC substations; soil aeration; soil characteristics; soil moisture content; soil pH value; soil resistivity; statistical data; steel corrosion; steel grounding design guide; underground steel; Conductivity; Corrosion; Equations; Grounding; Moisture; NIST; Soil; Steel; Substation protection; Voltage;
Conference_Titel :
Rural Electric Power Conference, 2002. 2002 IEEE
Conference_Location :
Colorado Springs, CO
Print_ISBN :
0-7803-7470-3
DOI :
10.1109/.2002.1002294
