why the earth pin is thicker than other pins in a plug? If
it is for reducing resistance, then why the copper earth
wire is not so thick as earth pin of socket?

Answer Posted / xyz

actually thickness is just for distinguishing it from
others and it is more in length than other pins as to
connect earth first to circuits.

Is This Answer Correct ?    7 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

1543


how we calculate electrical load on a building according to area?

2267


hr round

1670


A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

1343


Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

627






what will be d.g. capacity to cater together for 14hp A.C. load & 3kw lighting load

1557


If the earth is a good conductor of electricity, why don't people get shocked every time they walking on earth?

1313


Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.

2905


why does a dc machine has high efficiency while working as a generator than as a motor ..

1489


If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.

621


what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?

1828


why we use circuit breakers for switching instead of normal switching device?

1428


WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.

1640


how could we know the size of cable by physical view?

1226


How cable from Kit-Kat to main switch, from starter to motor are designed?

1584