• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

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Riding under high power transmission lines

C

coleman1495

Husqvarna
A Class
Okay so this is a strange one. A couple of days ago I was going for a ride on my 2013 te449. I was passing under a high power transmission line in interior BC and went to shift gears. When I reached for the clutch handle I was surprised to get an electrical shock. It was similar to the shock a person might receive from a weak electrical fence. This happened two more times in the exact same spot on the road.

I was riding on the road at the time (it is public access) that it happened. This area is frequently rode by people with all kinds of motorized vehicles. This is the first time I have ever heard of a person being shocked while riding there. My dad was following behind me on his bike and never experienced anything.

My best theory is that the electromagnetic field generated by the power lines induces a voltage in the windings on the starter. The started has a wire attached to the clutch handle.

Anyways has anyone ever had this happen? I will not be riding that close to power lines again as I doubt it is good for the electronics on the bike.
 
call Scully & Mulder(insert x files theme song). we ride near/along/underneath them frequently but never had an issue. in saying that id never live near them-supposedly cancer causing/heart issues from electromagnetic field plus they ugly for a backdrop!
 
likely just the electricity in the air zapping you.

take a 4' Florescent light bulb/tube out there next time you go. stick one end in the ground under the lines. if theres enough in the air it'll light up. ;) we do this all the time when we camp near high power lines. free camp lighting!


electromagnetic-fluorescent-bulb-light.jpg
 
Sceep is close...

It is just called micro shock - very common and has nothing to do with your stator or electrical system. I have been HELLA shocked on my MTB once. You continue to build up a charge until you ground (via the brake or clutch lever) and then you get the sudden jolt.
 
Okay makes sense, but how come no other riders have ever experienced this? I know many people that have rode under those roads and have not had a problem.
 
Okay makes sense, but how come no other riders have ever experienced this? I know many people that have rode under those roads and have not had a problem.
Click to expand...
Do you ride with a finger on the clutch and brake levers? If not, maybe that's why you get a buildup of charge and it discharges when you touch a lever?
 
Colo moto said:
Do you ride with a finger on the clutch and brake levers? If not, maybe that's why you get a buildup of charge and it discharges when you touch a lever?
Click to expand...


it could be a multitude of things. glove thickness, perspiration levels, lever material...
 
I think some people might be naturally more conductive than others. There are some people that have been hit by lightning multiple times on different occasions.
 
I get shocked if I am already touching the clutch or if I reach for the clutch while I pass under the one specific spot. I did not try the front brake though. Anybody wanna come to interior BC for a little shock? lol
 
No weather/clouds around? You should technically be insulated from true ground by yours. But electricity is a beast of it's own accord. If there wasn't any weather, then lightning looking for ground is out. However, a loose ground on your bike mixed with static electricity could be a cause. Stray voltage traveling down the towers happens occasionally, but that's pretty rare.

I'd check things like the coil ground to make sure it's not the issue. Read this thread.

http://www.cafehusky.com/threads/449-511-ignition-ground.28115/
 
Huskynoobee said:
No weather/clouds around? You should technically be insulated from true ground by yours. But electricity is a beast of it's own accord. If there wasn't any weather, then lightning looking for ground is out. However, a loose ground on your bike mixed with static electricity could be a cause. Stray voltage traveling down the towers happens occasionally, but that's pretty rare.

I'd check things like the coil ground to make sure it's not the issue. Read this thread.

http://www.cafehusky.com/threads/449-511-ignition-ground.28115/
Click to expand...


Not to start an argument, but it is not pretty rare - it is extremely common and under a number of atmospheric conditions, happens to everyone.

Go figure there is a website on this exact topic:

http://www.emfs.info/The+Science/highfields/Inducedcurrents/bicycles.htm

It looks as if the UK limits their transmission lines to 400 kV. We in the US do not and go WAY beyond that. Typically, those are super spans and well out of harms way, but in extreme terrain, you are quite close to the field generated by these lines.

I shot this video this weekend (nice timing), watch at about 25 seconds in, you will see how close we get to these lines. I get shocked here ALL the time...just a fact of life. On a similar run to this I got it on my MTB so bad it hurt enough I had to get off the bike and shake it out.

 
Wow, interesting. I ride an area where we ride right under transmission lines not 10 miles from the hydroelectric source and they are so loud (bacon frying) that you can hardly talk. My friends are scared of them. I used to lean my bike on them and laugh about it. Maybe I'll not do that anymore :cool:
 
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