why the earth pin in a 3-pin socket is longer and thickest?
Answer Posted / jkgjk
When we insert 3-pin plug in the socket, first longer and
thiker pin touch the plug, which is connected through earth.
This is for human protection from earth fault.
| Is This Answer Correct ? | 14 Yes | 3 No |
Post New Answer View All Answers
How to calculate the electrical load for a standard telecom BTS shelter and choose the DG set capacity for the same load?
what is thermal resistance of PVC Cable.
How to define Kirchhoff current law and voltage law along with simply examples.
What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?
Transmission voltage is kept 11KV,33KV,66KV,132KV,220KV due to form factor. What happen to 400KV and 765KV transmission voltage?
Swg formulae
1. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.
What is the differance between 2 dc motors of armature voltage 660 v and 440 v?
please send me previose rrb junior engineer qustion papers
A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3
High speed earth switch operation with diagram
pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .
Is any generator is developed which is operated with out diesal or other expensive source?
what is mean by D.O. in distribution line poles?
when we have to purchase the transformer by own i.e how much load will preferred HT connection?