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7 comments
Anonymous Poster

Short Circuit in Sea Water?

06/24/2010 7:18 AM

i am having 220 kv over head line. now if the conductor of 220kv line falls in sea water and none of the protection operates (assume), than what will happen?? whether all the water in sea will get sock. all the boats and ships in sea water will get electrical shock??? say for atleast an instant??? please take this question seriously. your answer would help me in understanding this beautiful world of electrical power. thanks

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Guru
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#1

Re: short ckt in sea water????

06/24/2010 7:34 AM
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Guru

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#2

Re: short ckt in sea water????

06/24/2010 7:35 AM

As the sea is at earth potential then the sea will boil where it contacts the cable. Till such time as either the cable melts due to the high current delivery or the power source fails due to the low impedance load.

Boats floating on the surface will be ok as they will be at the same potential as the sea. unless the cable falls onto a steel ship then it will become part of the conductor and be at the cables potential. anybody swimming contacting the ship from the water will suffer electrocution.

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#3

Re: Short Circuit in Sea Water?

06/24/2010 8:00 AM

If the protection doesn't operates you should rather be worried abot your job instead of enjoying the beauty of roasted fish direct from the sea.

By the way how did you construct a transmission line in the sea and for whose benifit?

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#4

Re: Short Circuit in Sea Water?

06/24/2010 9:19 AM

in that case my friend you will have a big problem, especially if children are playing in the water. ever wondered what roasted people look like?? if you don't want to find out then ensure that this never happens. thanks

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#5

Re: Short Circuit in Sea Water?

06/24/2010 12:00 PM

Come on people, use your brains...

People would be boiled or poached, not roasted. Roasting is a dry process...

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#6

Re: Short Circuit in Sea Water?

06/24/2010 10:22 PM

Ooh, Saint Elmo's fireworks!!

But why the assumption that the fault devices wouldn't work? Just that other day, I had a situation with a mislabeled circuit breaker. Intending to energize a newly installed sump pump, I closed the breaker--which turned out to feed a damaged line ending in the ocean. The 480/3 breaker tripped properly and safely within a few ms.

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Anonymous Poster
#7

Re: Short Circuit in Sea Water?

06/26/2010 4:46 AM

thanks ppl for taking seriously my question and your valuable feedback. what i conclud is power station generator will fail along with the transmission cable. thanks again.

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