Electic fence interfer with led fitting

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Ian's electrical
    New Member
    • Oct 2022
    • 3

    #1

    Electic fence interfer with led fitting

    I got a client who asked me to install LED back up fittings at their complex. I installed the fittings below the electric fence cable which runs in a pvc conduit pipe. When the mains power is on everything works as it should but as soon as there is load shedding and the lights must come on at 30% of its brightness the lights is starting to flicker when the fence is pulsing. Any idea what I can do to prevent it from happening?
  • Dylboy
    Gold Member

    • Jun 2020
    • 777

    #2
    Electric fences do give off inductance or what ever it's called. So it's sending voltage through the airgap and the cables are picking up the voltage.

    I am not sure how to fix it perhaps use shielded cable or braided cable to feed the LED and perhaps earth the braided sheath.

    Sent from my CPH2197 using Tapatalk

    Comment

    • GCE
      Platinum Member

      • Jun 2017
      • 1473

      #3
      Check your earth - have had it when a fence shorts down to earth and it brings LED on - Earth to the LED was a bit shitty and picking up the elevated voltage on the fence earth

      Comment

      • Ian's electrical
        New Member
        • Oct 2022
        • 3

        #4
        Originally posted by GCE
        Check your earth - have had it when a fence shorts down to earth and it brings LED on - Earth to the LED was a bit shitty and picking up the elevated voltage on the fence earth
        Thanks but the fitting and the led casings are all plastic so there is no place to connect the earth. Are you saying that I need to connect the one end of the supply cable earth feeding the light to the main earth of the house?

        Comment

        • GCE
          Platinum Member

          • Jun 2017
          • 1473

          #5
          Originally posted by Ian's electrical
          Thanks but the fitting and the led casings are all plastic so there is no place to connect the earth. Are you saying that I need to connect the one end of the supply cable earth feeding the light to the main earth of the house?
          SANS10142-1 says you must

          Comment

          Working...