Welcome Guest! The IOSH forums are a free resource to both members and non-members. Login or register to use them

Postings made by forum users are personal opinions. IOSH is not responsible for the content or accuracy of any of the information contained in forum postings. Please carefully consider any advice you receive.

Notification

Icon
Error

Options
Go to last post Go to first unread
Jeni D  
#1 Posted : 05 March 2010 14:15:49(UTC)
Rank: Forum user
Jeni D

Hi I am hoping that someone can shed some light on an incident that happened to me last summer. I was taking down some electric fencing after having checked that the battery was disconnected and I got a shock from it. Several attempts (and shocks) later, my brain started working and I up-rooted a couple of fence posts and dropped the fencing onto the ground to earth it. I was a bit puzzled about how the fence continued to be live after it was disconnected from the power source until someone said that this was caused by the nearby electricity pylon (fence was only about 10 feet from the base of the pylon). So my questions are: Is this a credible explanation? If it is, how much difference can a pylon make to the current in an electric fence? Can anything else be effected by the proximity of a pylon? Jeni
bleve  
#2 Posted : 05 March 2010 14:26:31(UTC)
Rank: Super forum user
bleve

The fencing works from a capacitor and discharged along the fence by capacitance at a pre determined voltage at a pre determined interval. Even though you had disconnected the battery the charge was still held within the capacitor until you came into contact with the fence. Nowt to do with the pylon.
Jeni D  
#3 Posted : 05 March 2010 14:39:04(UTC)
Rank: Forum user
Jeni D

Hi Bleve I can understand getting one shock from the fence after is was disconnected but on this occasion I got probably a dozen or so shocks (because the fence had to come down and I kept trying to get it down). I have had a fair bit of experience with electric fences and have never had this happen before or since. Can the capacitor hold enough of a charge to give repeated shocks? Jeni
Users browsing this topic
Guest
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.