Why is the earth socket in an electrical plug outlet made
thicker and lenghty?
Answer Posted / mahavir jagdev
There are two answers to this question -
1. In olden times the earth plug was long and thick so that before any appliance get connected to the power, it it earthed and protects the person from shock as most of the equipments were made out of metal. It is thicker as the short circuit current is much more than the normal current the device takes.
2. With the modern three pin pligs the principle is the same but another safety feature has been added that the lower two power points open for insertion of the plug points only after the Earthing point has been insert. Again for safety.
Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
How many Zones can be in Conventional type fire alarm system & how can we detect the fire in Conv. type FAS?
what you have to see after one week or month from the day of installation of transformer ?
What is the most important precaution in any experiment with d.c. Shunt motor?
How to decide whether A / B / C / D curve type MCB should be used?
explain the function of brush less dc motor?
How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?
sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan
how to revers the direction of single phase motor
how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.
What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?
1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to reconfirm its base capacity.
If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?
what is the working principle of a DG Set, Alternator, & exiter
I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?
How do we find the rating of a transformer, if it got burnt badly.