Characteristics

  • The material used is made of High Density Polyethylene which can withhold a water temperature of up to 60˚.
  • The bird-guard is made in lengths of 500mm, 750mm and 1000mm.

  • The Bird-guard can be attached anywhere on the electricity pylon with minimal downtime and disruption to the power line.

  • The device has a patent number: (Pat.2000/1498)

  • The material contains UV inhibitors and has a lifespan of 15 years at an average temperature of between 20-25˚C.

  • It consists of a square base with upright prongs (different lengths).
  • The Bird-guard is attached with a quick release clip, called a C-Clip with a locking mechanism.

Characteristics

  • The material used is made of High Density Polyethylene which can withhold a water temperature of up to 60˚.

  • The material contains UV inhibitors and has a lifespan of 15 years at an average temperature of between 20-25˚C.

  • The bird-guard is made in lengths of 500mm, 750mm and 1000mm.
  • It consists of a square base with upright prongs (different lengths).
  • The Bird-guard can be attached anywhere on the electricity pylon with minimal downtime and disruption to the power line.
  • The Bird-guard is attached with a quick release clip, called a C-Clip with a locking mechanism.
  • The device has a patent number: (Pat.2000/1498)

Typical Impacts

The size of the KV lines and their prominence of the electrical infrastructures constitute an important interface between wildlife and man. Negative interaction between wildlife and electricity structures take many forms, but two common problems in Southern Africa are:

Electrocution of birds:

The birds nest and roost on the pylon structure; which can cause a Flashover in the system especially in wet conditions. The nests contain large sticks, wires & pieces of rope which then causes an air gap intrusion between the conductor and the earthed structure; the nesting material may catch fire and intern may even cause a veld fire.

Bird Streamers:

Birds can cause flashovers through long streams of excreta, called streamers. Only recently been investigated by Power and light in USA and Eskom South Africa It’s now accepted that Bird Streamers are a major cause of faults on the transmission networks. The streamers cause a fault. The fault initiates on the live hardware and it propagates towards the tower. The fault appears to flash across the air gap causing a Bird Streamer induced fault.

Large birds of prey are the most commonly electrocuted on power lines

Typical Impacts

The size of the KV lines and their prominence of the electrical infrastructures constitute an important interface between wildlife and man. Negative interaction between wildlife and electricity structures take many forms, but two common problems in Southern Africa are:

Electrocution of birds:

The birds nest and roost on the pylon structure; which can cause a Flashover in the system especially in wet conditions. The nests contain large sticks, wires & pieces of rope which then causes an air gap intrusion between the conductor and the earthed structure; the nesting material may catch fire and intern may even cause a veld fire.

Bird Streamers:

Birds can cause flashovers through long streams of excreta, called streamers. Only recently been investigated by Power and light in USA and Eskom South Africa It’s now accepted that Bird Streamers are a major cause of faults on the transmission networks. The streamers cause a fault. The fault initiates on the live hardware and it propagates towards the tower. The fault appears to flash across the air gap causing a Bird Streamer induced fault.

Large birds of prey are the most commonly electrocuted on power lines

Results

Results to date on lines that have been fitted with bird-guards have resulted in an average of 80% reduction in bird faulting, and some lines have had a 100% reduction in Bird related faulting.