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akhil5595
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Join Date: Feb 2007
Posts: 6

touching phase lines

05/08/2007 12:35 AM

Sir,

I want to know what happened if two phase lines are touching on domestic distribution lines?If there any chance to blow out fuses on Transformer?

I want to know more.....
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North of 60
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Canada - Member - If there is a way to screw someting up, there is someone to do so! Safety - Hazmat - New Member

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Location: Iqaluit, NU. Canada
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#1

Re: touching phase lines

05/08/2007 7:51 AM

Touching what? Each other... you are kidding right?

If non-insulated conductors, can you say... flash of light... melted copper... smell of ozone... trip to the store for new wire and fuses... mad customers...

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Anonymous Poster
#2

Re: touching phase lines

05/08/2007 9:28 AM

Do you mean phase to neutral? Most domestic homes only have a single phase supply into the distribution board. If you are referring to the internal wiring after the main isolator then it should have miniture circuit breakers rated accoding to the circuit involved. 6A lighting, 16A water heater, 32A ring main sockets, 45A cooker or medium shower. The main fuse that the electricity supplier fit can be 80A or 100A. If the supply cable it in trouble the get on to you area supplier imediately!! and do not touch. If the wires short out it will be VERY DANGEROUS. I know where a cable shorted out under a persons drive in the road I lived in and it took out a third of the roads supply for several days. DO NOT TAKE ANY RISKS.
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rcapper
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#3

Re: touching phase lines

05/09/2007 1:03 AM

Are you curious about what would happen? Yes, you might blow the fuse at the pole but right before that happens you may have a fireball in your face, burns, blindness or death. There is a lot of energy there and it can vaporize metal, start a fire, damage your hearing or kill you. The fuse at the pole may be set to serve several households. This is not something you want to experiment with.

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vermin
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Join Date: Jul 2006
Location: Silicon Valley
Posts: 5356
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#4

Re: touching phase lines

05/09/2007 1:04 AM

It's posters like you that make me believe the terrorist paranoia. Woof! What the heck are you up to?!

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Anonymous Poster
#5

Re: touching phase lines

05/09/2007 2:05 AM

Does the word "KABOOM" mean anything to you?
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MACA
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Join Date: Feb 2007
Location: Aberdeen, Scotland
Posts: 393
Good Answers: 21
#6

Re: touching phase lines

05/09/2007 5:43 AM

I have accidently touched phase to neutral on a domestic light supply. There is a big bang, flash of light and a very stunned look on my face. The wires were no longer there and I looked like a muppet.

I wouldn't recommend this however, but it was quite spectacular.

On a serious note though, NEVER work with any electrical power unless you are sure you know what you are doing. What happened to me was because I was trying to take a shortcut to save time.

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ca1ic0cat
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#7
In reply to #6

Re: touching phase lines

05/09/2007 8:49 AM

Intentionally creating an arc with this type of current is usually called "welding"....

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North of 60
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#11
In reply to #7

Re: touching phase lines

05/10/2007 11:42 PM

LOL... Thanks for the chuckle.

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vermin
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Join Date: Jul 2006
Location: Silicon Valley
Posts: 5356
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#12
In reply to #11

Re: touching phase lines

05/10/2007 11:51 PM

"You!!! I want to know more!!!!"

Doesn't that get you just the least bit curious?

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Ron Nombri
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Engineering Fields - Electrical Engineering - Ron Nombri Engineering Fields - Energy Engineering - Ron Nombri Engineering Fields - Power Engineering - Eternal Power Papua New Guinea - Member - Ron Nombri

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Location: Papua New Guinea
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#13
In reply to #6

Re: touching phase lines

05/16/2007 5:03 AM

On a serious note though, NEVER work with any electrical power unless you are sure you know what you are doing.

Very true, I support your advice, as I share the same experience.

Regards,

Ron

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Bluestone
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Join Date: Nov 2006
Location: OH USA
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#8

Re: touching phase lines

05/09/2007 9:22 AM

And don't worry about clean underwear. I guarantee it won't be if you do it.
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Anonymous Poster
#9

Re: touching phase lines

05/09/2007 1:05 PM

ODDS ARE THAT THE WIRES WOULD WELD TOGETHER AND THE FUSE WOULD BLOW.

THE FUSES GOING INTO THE HIGH VOLTAGE SIDE OF THE TRANSFORMER ARE AROUND 100 AMPS AT 4-12 kV.

YOU WOULD NOT BE THE MOST POPULAR GUY IN THE NEIGHBORHOOD FOR QUITE A WHILE.
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KLYSTRON
Associate

Join Date: Jul 2006
Location: central virginis , usa
Posts: 36
#10

Re: touching phase lines

05/10/2007 9:56 PM

hi there

firewerks a wonderful during the summer /

just because one does not see the power capabilty of electricity /

electricity power to do things is very REAL / the stories in post before are

VERY REAL / ELECTRICITY CONTROLED IS WONDERFUL , UNCONTROLED
WELL WHO KNOWS
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Users who posted comments:

Anonymous Poster (3); Bluestone (1); ca1ic0cat (1); KLYSTRON (1); MACA (1); North of 60 (2); rcapper (1); Ron Nombri (1); vermin (2)

Previous in Forum: Transformer & Generator selection for motor loads   Next in Forum: Imbalanced Load for a Double-Wound Transformer
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