Basic Electronics and Electrical Engineering: Chapter 7: Basics of Power Systems
Selection of Earthing
The type of earthing to be provided depends on many factors such as type of soil, type of installation, etc..
SELECTION
OF EARTHING
The type of earthing to
be provided depends on many factors such as type of soil, type of installation,
etc.. The following table helps in selecting a type of earthing for a particular
application
Type of Earthing
01.
Plate earthing -
Application: Large
installations such as transmission towers, all sub‒stations generating stations
02.
Pipe earthing –
Application:
• For domestic
installations such as heaters, coolers, refrigerators, geysers, electric iron,
etc.
• For 11 kV/400 V
distribution transformers
• For induction motors
rating upto 100 HP
• For conduit pipe in a
wall, all wall brackets
03.
Rod earthing –
Application: In areas
where the soil is loose or sandy
04.
Strip of wire earthing - Application: In rocky ares
Basic Electronics and Electrical Engineering: Chapter 7: Basics of Power Systems : Tag: Basic Engineering : - Selection of Earthing
Basic Electronics and Electrical Engineering: Chapter 7: Basics of Power Systems
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