Shock from Bar

> 10 years ago
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Z
Z
NSW
64 posts
Z Z
NSW, 64 posts
30 Mar 2005 10:23am
Hi All,

Just want to know if anyone else has experienced static electricity from their bar?

I have a carbon bar.
I was in Noosa over Easter , and went to a spot called Lake Weyba.
I was standing in knee high water, I was hooked in, and let go of the bar for a few seconds. I grabbed the bar with my left hand, and ZAP! I let go of the bar, and grabbed the bar with my right hand, and ZAP! A mate of mine was about 3 or 4 metres away said he heard the zaps.
I could see some storm clouds on the way, so I decided not to tempt fate, and put the kite down, and went home.

There was no thunderstorm later in the day...
Kitehard
Kitehard
WA
2782 posts
WA, 2782 posts
30 Mar 2005 9:00am
G'Day Z,

This has happened to me on many occassions and is not that uncommon on the east coast. I had it happen once at Cronulla, once at Kurnell, once at Byron Bay and also at Noosa river mouth. The amount of charge it builds up can be extremely high in Voltage, but is generally harmless due to the amperage being weak. Doesn't mean it wont give you quite a boot though! I have seen a 3 inch long, bright spark from just such occassions that I heard and saw from 40 metres away.

The kite generates static electricity as it flies through air that is heavily charged with positive ions. When we get a heavy build up of positive ions usually hanging lower in the sky (almost always cloudy and threatening to storm), the kite gathers and conducts the electricity to the water through the lines, the bar, through your body, the board and into the water which is negetive or earth.

When you let go of the bar, or jump from the water in a normal jump, the conduit or connection is broken and the charge is allowed to build up in the kite as it cannot get to earth. The voltage builds instantly the connection is broken and builds until you either grab the bar or touchdown from the jump. At this point the charge has reached sufficient voltage to arc from you to the water or you to your bar in your case, in the form of a big spark. This spark would be in the vicinity of many thousands and could be in the order of tens of thousands of volts but only milliamps.

As long as you stay earthed to the water with hands on the bar, you will feel nothing as the current makes its way to earth, it's only when the connection is broken that the spark occurs. It is highly advisable to come in and bring your kite down as it also indicates that there is a strong potential for lightning strike.

I have kept kiting for short periods when these conditions have been about, but it ain't no fun when you cant jump so best to come in and give it a miss for safetys sake.


Have fun and fly safe,

Darren Marshall
Australian Kiteboarding School
gruezi
gruezi
WA
3464 posts
WA, 3464 posts
3 Apr 2005 4:27pm
Just thought I would bring this one back from the "dead," as I find it so interesting....well done KH!

Perhaps trailing a long rope as ground would solve the sparking. Just have to watch out not to get tangled when jumping.....nah.... take the jolt, no leash. If the little sparks can't kill you..........why not try them out, probably good for the heart.....welcome to "front" kiting
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