Question 1

What is a bird flight diverter and how does it prevent avian collisions?

Accepted Answer

A bird flight diverter is a device installed on overhead conductors and earth wires that increases their visual detectability to birds in flight. Birds approach power lines at speeds where reaction time is insufficient to avoid invisible conductors. Diverters provide visual contrast through retroreflection, photoluminescent glow, dynamic rotational motion, and in LED models, active blinking illumination. This gives birds sufficient detection distance to alter their flight path safely.

Question 2

How do bird flight diverters work?

Accepted Answer

Bird flight diverters work by making power line structures more noticeable to birds. They use bright colors, retroreflective materials, 360-degree rotating flappers, photoluminescent glow-in-dark elements, and in LED models, solar-powered blinking lights. When birds detect these visual markers from a safe distance, they alter their flight path to avoid collisions with power lines.

Question 3

Where are bird flight diverters used?

Accepted Answer

Bird flight diverters are used on power transmission and distribution lines, earth wires, OPGW cables, wind turbine collector systems, and communication towers. In India, they are mandatory in Great Indian Bustard (GIB) habitat corridors in Rajasthan and Gujarat under Supreme Court order (Ranjitsinh & Ors vs. Union of India, 2021). They are also deployed in Ramsar wetland crossings, migratory bird corridors, and Protected Area buffer zones.

Question 4

When should I specify LED versus Non-LED bird flight diverters?

Accepted Answer

LED bird flight diverters (PLM/LD-V1) are recommended for high-risk zones requiring 24-hour active protection, near major migratory routes, GIB habitat corridors, airports, and areas with significant nocturnal flight activity. Non-LED models (PLM/NLD-V1) provide effective daytime protection through retroreflection and photoluminescence, ideal for standard network deployment. A risk-zoned approach using LED at hotspots and Non-LED on standard spans is common best practice.

Question 5

Are Prakritis Technologies bird flight diverters CEA compliant?

Accepted Answer

Yes. All Prakritis Technologies bird flight diverters are designed and manufactured as per CEA (Central Electricity Authority) and PGCIL technical specifications for Bird Flight Diverters in India. Our products are approved by GETCO (Gujarat Energy Transmission Corporation) and RVPN (Rajasthan Vidyut Prasaran Nigam) and are actively deployed across GIB zones in Rajasthan and Gujarat.

Question 6

What type tests have been conducted on the bird flight diverters?

Accepted Answer

Products undergo: Mechanical Strength testing (clamp slip plus or minus 25kg, pull plus 100kg), Vibration testing, Temperature Cycle testing (-20°C to +100°C), Heating Cycle, Radio Interference Voltage and Visual Corona testing, Corrosion Resistance, Accelerated Ageing, and Visual Examination tests. Full type test reports are available to procurement authorities on request.

Question 7

What is the warranty and design life of Prakritis Technologies bird flight diverters?

Accepted Answer

All bird flight diverters from Prakritis Technologies come with a 5-year warranty and a 15-year design life. LED battery systems provide a minimum five-year operational life with zero maintenance requirements. Products are designed to withstand temperatures from -40°C to +80°C and wind speeds exceeding 150 km/h.

Question 8

Why are bird flight diverters mandatory in Great Indian Bustard habitat areas?

Accepted Answer

The Supreme Court of India, in Ranjitsinh & Ors vs. Union of India (2021), directed mandatory Bird Flight Diverter installation on all overhead lines in Great Indian Bustard (GIB) corridors that cannot be undergrounded. Fewer than 150 GIBs survive in the wild. Power line collisions kill approximately 18 GIBs per year, making it the single largest cause of extinction risk for the species. GIBs cannot detect thin conductors due to their sideways-facing eyes and heavy body weight preventing last-moment evasion.

Question 9

What is the price of bird flight diverters in India?

Accepted Answer

Bird flight diverter pricing in India varies based on type (LED or Non-LED), quantity, and project specifications. Prakritis Technologies supplies both LED and Non-LED bird flight diverters meeting CEA and PGCIL specifications. Contact us at birddiverter.com for a project-specific quotation.

Power Line Marker

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