An Electrical connection to the general mass of earth to provide safe passage to fault current to enable the operate protective devices and provide safety to personal.
In Earthing means connecting the neutral point of a supply system or Non current carrying parts of electrical apparatus to the general mass of earth in such a manner that at all times an immediate discharge of electrical energy takes place without danger.
TYPES OF EARTHING
- NATURAL EARTHING
It deals with the earthing of system neutral to ensure system security and protection.
- EQUIPMENT EARTHING
It deals with earthing of non current carrying parts of equipment to ensure safety to personnel and protection against lighting.
The TV transmitter are broadly classified as
High Power Transmitter
TV transmitter having output power 1 KW and above.
Low Power Transmitter (LPT)
All TV transmitters having output power less than 1KW and more than or equal to 50 W.
Very Low Power Transmitter (VLPT)
Output power of 10 W