Which of the following is INCORRECT regarding site selection for a substation?

The correct answer is option 4):(Does not depend upon the type of substation.)

Concept:

• Electric and magnetic field strength is of particular concern, especially for Ultra High Voltage (UHV) systems at 765 kV,1200 kV or above. Research
• organisations have shown the impact of strong Electric/magnetic fields due to UHV substations and lines on humans. so option 4 is wrong
• Atmospheric conditions like salt and suspended chemical contaminants influence the selection of equipment and maintenance requirements.  Interference with communication signals. The construction company have to take permission from the appropriate authority. 
• The access road to the site for smooth movement of construction machines, equipment and transformers. Good Roadways to the construction site and shorter distances to the rail head are desired. The site should be chosen to avoid soil filling, earth removal etc.
• The substation should be near the load centre in order to reduce losses
• Land costs should be cheap.