Effects of deteriorated and contaminated substation surface covering layers on foot resistance calculations

Effects of deteriorated and contaminated substation surface covering layers on foot resistance calculations

It is shown that significant inaccuracies can occur when the ANSI/IEEE Std 80 method for calculating foot resistances is applied in substations covered by a thin layer of crushed rock or similar covering layers. In particular, the errors obtained by using the infinite series expression of the foot r...

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Veröffentlicht in:IEEE transactions on power delivery 1993-01, Vol.8 (1), p.104-113
Hauptverfasser: Dawalibi, F.P., Xiong, W., Ma, J.
Format: Artikel
Sprache:eng
Schlagworte:
240400 - Power Transmission & Distribution- Health & Safety- (1990-)
ANSI standards
Applied sciences
BODY
BODY AREAS
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
Electric resistance
Electric shock
Electrical engineering. Electrical power engineering
ELECTRICAL FAULTS
ELECTRICAL INSULATION
Electrical power engineering
ELECTRICAL PROPERTIES
ENGINEERING
Exact sciences and technology
FEET
Foot
Immune system
LEGS
LIMBS
PHYSICAL PROPERTIES
Power networks and lines
POWER SUBSTATIONS
POWER TRANSMISSION AND DISTRIBUTION
SAFETY ENGINEERING
Stress
Substations
Surface contamination
Surface resistance
Voltage
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Beschreibung
Zusammenfassung:It is shown that significant inaccuracies can occur when the ANSI/IEEE Std 80 method for calculating foot resistances is applied in substations covered by a thin layer of crushed rock or similar covering layers. In particular, the errors obtained by using the infinite series expression of the foot resistance are consistently larger than those produced by the simplified expression for clean and contaminated surface layers.< >
ISSN:0885-8977
1937-4208
DOI:10.1109/61.180325