why the earthing hole in 3pin is larger than normal.?
361400
?????????????? Say What ?????????????????
787069
14 guage wire is larger in diameter than 16 guage wire and has a greater current-carrying capacity.\n\nSee http://en.wikipedia.org/wiki/American_wire_gauge
250297
1.Current in the 385.451 V circuit is bigger.\n\nGod is spelled B-I-G B-A-N-G\n\nPBrax@netscape.com
931890
You just got your basic wrong. Try to reveal them again, and understand the ground physics first...\n\nThis webpage may help you to have preliminary understanding...\n\nhttp://computer.howstuffworks.com/hard-disk.htm
129665
A power supply needs a "load" to run,,I.E.  all that stuff in the computer box.  Some have internal fuses that will blow and you have to open the supply box to check,,There is a 110/220 switch that may have been moved,, I have never had one that I had to mess with jumpers,,  yes, a factory defect is possible,, cold solder joints on large components are quite common coming out of the factory..
863554
I hope someone else can read between the lines to see what your question really means. \n\nIf 48VDC is grounded, then it isn't 48VDC, it is Ground! The purpose for grounding a signal line labelled as 48VDC can only be to notify the source of the voltage that there is a connection at the other end.
225165
The first thing that you really need to pay attention to is the dynamics of the wire itself and not the physical size.  Your statement is very bias as I could say that why do fiber optic lines tranmit so quickly and the wire holding up the golden gate bridge is not quicker???\nThe quickest and best answer unless you have degrees in physics is the density of the fibers.  It all comes down to density and a mirid of other factors, but density is the key my friend.\n\nHappy conducting my fiber friend!
1159259
Your problem is the Hard Disk. It could be your connectors & bad contacts. Electronic problem mostly. I don't understand how you connect the same system at 2 places. Do you carry your system wherever you go?\n\nIf that is the case then you should get yout power sources checked for proper earthing. Last resort........change your HDD. Use the current as a backup drive so your data isn't lost.\n\nGood luck.
431144
The only reason you get shocked when you touch one phase and ground in the commercial power distribution system is because the commercial power distribution system uses a grounded system where the earth itself is used instead of a wire.  Commercial power distribution I believe (and I may be wrong on this) uses Wye (pronounced "Y") connected three phase power with the center grounded allowing the earth itself to be used in place of the fourth wire.  In a balanced 3-phase system (all loads draw the same amount of power from all three phases) the center is not required, but few people have three phase blenders, so only a single phase of the power is sent to an outlet along with the neutral which is grounded.  If you look at Naval electrical distribution systems, they are ungrounded.  Navy schools teach that the use of an ungrounded system raises reliability because two faults to ground on two different phases are required to disable the electrical distribution system, and that in ideal conditions one can touch a single phase and ground and not be shocked.  Berkeley challenges this and I have included a link to their web sight.  I believe the truth is somewhere in the middle because I have touched a single phase and ground and been shocked.  It was a 440V wire, and I definitely felt it, but it was not nearly as sever as being shocked by an outlet (115V) so ungrounded reduced the severity, but did not eliminate the shock.  The electricity that I felt was probably from capacitance in the insulation.  To any one who cares, I managed to shock myself while removing a dead front fuse.  Dead front fuses are "idiot proof", but you know what happens every time they make something that is "idiot proof"?  They make a better idiot to go with it.  (:
140428
x\n\nthe answer below is just for voltage - see my graph above - it is quite accurate. here it is again, larger: X
356764
The earth is actually, as a whole, a conductor, mostly because there's a lot of earth to be a source and sink of charge. That's why many high power appliances have a third prong to plug into the wall called a "ground" (the round one below the the two flat prongs). That does actually connect into the earth. That way, if there is a malfunction, the current flows done to the earth, rather than you (which generally is not fun).\n\nIf the earth were a dielectric, current wouldn't flow at all to the earth, and so the current would have to flow somewhere else (possibly you).
1187708
its about being an earthing? i dunno ty for 2 :D
756481
Normally this is a "Restive" not voltage question/answer, and the proper neutral to ground = 2 Megg ohms (min.) this being incorporated in a residential application.\nHigher voltage in let us say a 3-phase utilization this # is on the low side. (assuming a.c. source. d.c. is a completely different animal!
936541
This is to protect the main appliance.  Mostly the three prong socket configuration has one.  Fuse is always for protection, either it is current sense or temperature sense.  anything that will go over the fuse range is enough to bust it and thus avoided further damage to your appliance.
309490
Bad idea because there is a higher probability that the board might create a short circuit and "fry" you processor, RAM, and other fragile hardware. It's always best to secure the board to the case chassis because it not only creates stability - it also ensures proper grounding.
1164919
you need to describe what you mean by "small" better.\nis it too small vertically, horizontally, or both?\nAlso, how good is your electronics background?\nDo you know how to discharge the CRT and large capacitors so you don't get zapped with 330 to 10,000 volts while attempting to repair it?\nYou also need to define "wavy" better.\nWith the tin amount of information you have given though, it sounds like the power supply is failing, but in which part is impossible to say.
890488
Your wire is too thin...go for a heavier gauge wire and that will cure the problem.\n\nGood Luck