Faulty fences can mean hefty fines

A member recently contacted Farmstyle to tell us she had been visited by representatives from the Australian Communication and Media Authority in Canberra. The ACMA had received a complaint about television and radio interference and our reader’s electric fences were thought to be to blame.

The investigators found that faults in the fence circuits were causing the interference and an infringement notice was issued, as well as an order to correct the fault.

Blake Murdoch from the ACMA explains how this occurs and how landholders can avoid this problem.

Electric fences are high maintenance devices. They do not cause interference if they are installed and maintained properly, however, neglected or poorly maintained fences will be less effective and can cause interference to broadcast signals. This may affect TV and radio reception on  the property, or neighbouring properties. In some situations interference may even affect other radio communications, such as HF and amateur radio services.

Wide band noise generated by an electric arc in the fence line is the common source of interference to broadcast reception. Bad joints, leaky insulatorsand overgrown vegetation are the main culprits for causing interference.

To locate arcing caused by any of these issues, walk the fence line with a transistor radio on high volume, tuned off-station, on the AM band. The clicking will get louder as the fault is approached.

When planning to install an electric fence, seek assistance from professionals to avoid unnecessary troubles. An electric fence products manufacturer or supplier will be a good source of advice.

Before building an electric fence, consider the following: 

  • The fence earth system must be away from the household supply, safety earth and buried water pipes. 
  • The fence earth must not connect to the mains supply safety earth or to the water supply pipes. 
  • The mains power supplying plugs and sockets for the energiser must be in good working order with no loose connections. 
  • The energiser earth cable must not touch buildings, which can act as a broadcast aerial. Use double insulated cable or run the wire to earth using insulators. 
  • Use only top quality insulators. Sparking inside cracked or poor quality insulators causes interference. 
  • Avoid running the electric fence line parallel to power or telephone lines.
  • The energiser’s ground system should be at least 10m away from buried telephone wires. 

Maintenance tips 

Complete periodic visual inspections. Look for broken wires, cracked insulators, corroded hooks and overgrown vegetation touching the wires.

Clamp broken wires properly do not just hand twist. The same applies to any loose wires.

The Australian Communications and Media Authority (ACMA) may take regulatory actions under the Radiocommunications Act 1992 for causing substantial interference to radiocommunications including broadcast services.  The ACMA encourages operators of electric fences to take voluntary measures to avoid and resolve interference from their electric fences without intervention of the ACMA.

 

News Category

New Forum Topics

Topic Replies Last post Forum
5909 New to all of this. Improving my posture for Alpacas.
by Gingerbread Man on Sun, 12/08/2019 - 11:17
1
by admin
Wed, 12/11/2019 - 13:02
Pastures & Crops
5914 Oil Level in A NH Roller Bar Hay Rake
by Clydie on Tue, 12/10/2019 - 19:19
0
by Clydie
Tue, 12/10/2019 - 19:19
Machinery & products
5908 Adding cameras to tracotrs
by IHeartRobots on Fri, 12/06/2019 - 08:20
0
by IHeartRobots
Fri, 12/06/2019 - 08:20
Farm software
5757 Nigerian Dwarf Goats
by gem7680 on Wed, 07/03/2019 - 17:28
3
by First Fleet
Wed, 12/04/2019 - 11:39
Goats
5905 GST on agistment lease
by Louise2507 on Mon, 12/02/2019 - 09:59
2
by Louise2507
Mon, 12/02/2019 - 12:49
General Forum
5466 How to Become Classified as A Primary Producer/Alpacas
by Char on Fri, 02/01/2019 - 11:04
3
by thomen
Mon, 12/02/2019 - 10:40
Farm planning
5453 Pasture Improvement Costs
by @Nick on Mon, 01/14/2019 - 19:44
4
by admin
Fri, 11/29/2019 - 17:28
Farming Help
5903 Setting up Cattle scales load bars
by bigdave06 on Wed, 11/27/2019 - 13:43
0
by bigdave06
Wed, 11/27/2019 - 13:43
General Forum
5894 Soil aeration
by Albertgotdonkey on Fri, 11/08/2019 - 08:16
4
by Albertgotdonkey
Tue, 11/19/2019 - 17:33
General Forum
3032 Selling meat off farm that is slaughtered by a registered abattoir
by Dominiquet on Sun, 08/14/2016 - 17:38
5
by admin
Mon, 11/18/2019 - 11:13
Farming Help
5855 sheep and goats
by mick650 on Mon, 09/09/2019 - 20:06
3
by ploist125
Thu, 11/14/2019 - 06:11
General Forum
5891 Growing/cutting hay
by megssss on Wed, 11/06/2019 - 11:14
3
by admin
Wed, 11/13/2019 - 10:58
Farming Help
699 How do you use software to help you run your farm ?
by clement_911 on Sat, 02/25/2012 - 19:20
8
by kakhankaramm
Fri, 11/08/2019 - 18:29
General Forum
5889 Please help with choice
by PeterHigg on Thu, 10/31/2019 - 22:59
3
by admin
Fri, 11/08/2019 - 12:46
Farm planning
5887 Sheep and Cattle Per Acre
by Jack Lambo on Tue, 10/29/2019 - 08:17
1
by admin
Thu, 10/31/2019 - 11:13
Pastures
3849 Paralysis Tick Prevention - sheep/lamb
by BecS on Sat, 09/22/2018 - 07:00
3
by AuroraDaniels
Wed, 10/23/2019 - 18:04
General Forum
5870 Do lambs need to be treated prior to Consumption?
by Bushwick on Sun, 10/06/2019 - 22:15
4
by admin
Mon, 10/21/2019 - 11:17
Sheep
2899 Chamberlain Countryman 354 Parking Brake
by countryman on Sat, 05/07/2016 - 12:33
1
by Peter Holmes
Sat, 10/19/2019 - 10:28
Farming Help
3059 Tractor implements... Advice please.
by Mal on Sat, 09/10/2016 - 11:08
2
by pasture.improv…
Fri, 10/11/2019 - 11:10
Farming Help
5869 Goat founder, please help.
by annef202 on Sun, 10/06/2019 - 12:32
2
by admin
Fri, 10/11/2019 - 11:09
Goats

Our Sponsors

Our Partners