what are the various types of earthing? plz give brief detail of all. also pos

what are the various types of earthing? plz give brief
detail of all. also post pictures if u have.

Question Posted / ankushmiglani

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what are the various types of earthing? plz give brief detail of all. also post pictures if u have..

Answer / aleem khan

AS PER THE IEC STANDARDS THERE ARE 3 TYPES OF EARTHINGS.
1. TT SYSTEM
2.TN-C OR TN-S SYSTEM
3.IT SYSTEM

FIRST LETTER : EARTHING ARRANGEMENT AT THE SOURCE OF THE ENERGY.

T- DIRECT CONNECTION OF THE NEUTRAL POINT TO THE EARTH.
I- NEUTRAL POINT IS ISOLATED FROM THE EARTH OR IT WILL
CONNECT THROUGH AN IMPEDANCE.

SECOND LETTER : EARTHING ARRANGEMENT FOR THE EXPOSED
CONDUCTIVE PARTS OF THE INSTALLATIONS

T- DIRECT ELECTRICAL CONNECTION OF THE EXPOSED CONDUCTIVE
PARTS OF THE INSTALLATION TO THE EARTH ELECTRODES
INDEPENDENT OF THE EARTH ELECTRODES OF THE NEUTRAL AT THE
SOURCE.

N- DIRECT ELECTRICAL CONNECTION OF THE EXPOSED CONDUCTIVE
PARTS TO THE EARTHED NEUTRAL ELECTRODES AT THE SOURCE.

THIRD LETTER: ARRANGEMENT OF EARTHING FOR NEUTRAL AND
PROTECTIVE FUNCTIONS.

C- NEUTRAL AND PROTECTIVE FUNCTIONS ARE COMBINED IN SINGLE
CONDUCTOR.

S- NEUTRAL AND PROTECTIVE FUNCTIONS ARE SEPERATE CONDUCTORS

T- NEUTRAL CONNECTION IS