MAINTENANCE OF EARTHINGS
A good earthing system should have least periodic inspection and maintenance system to retain its effectiveness. All the features of design, selection of earthing type and location of the installations have great impact of periodicity of maintenance and inspection therefore, we recommend to keep in mind always about periodic inspection and maintenance while designing of earthing system. Old types of conventional earthing had serious disadvantage of need of regular watering which outdated only because of higher need of periodic maintenance..
The earthing or grounding in electrical system is always invisible, physically and functionally, but we feel its importance only with the problems in electrical system with poor or no earthing
Pl watch this video covering basics about maintenance of earthings with special reference to commercial installations like data centres, thermal power plants, cement industries and other process industries using electronic circuits like PLCs.
Further, in the video also explained the followings:
– how to measure earth resistance when we have no costly equipment
– importance of neutral to earth voltage
– importance of periodic readings of 100 W bulb return voltage to independent earthing.