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Bird Flight Diverters
One Range of
Bird Flight Diverters.
Three Engineered Models.
Prakritis manufactures a complete Bird Flight Diverter range for India’s transmission and distribution networks — Aero Spin, LED and Non-LED — sharing one universal clamp and one CEA-compliant design philosophy, each optimised for a different risk profile and visibility requirement.
Diverter Models
3
one universal clamp
The Category
What a Bird Flight Diverter
Actually Does.
A bird flight diverteris a device fitted to overhead conductors, earth wires and stay wires to increase their visual detectability to birds in flight. It does not alter the electrical function of the line — it changes what a bird perceives as it approaches, giving it enough distance to divert around the conductor rather than into it. This is the underlying engineering principle behind every model in this range, and behind the wider category of power line markersand transmission line bird divertersused across the industry.
No single visibility mechanism performs equally well in every lighting condition, terrain type and risk category. That is why Prakritis manufactures three distinct diverter platforms rather than one — each built on the same universal clamp and CEA-compliant mechanical base, but tuned to a different combination of illumination, motion and reflectivity. Read more on why this problem existsfor India’s transmission network.
Retroreflection
Reflective inserts return light back toward its source, creating a high-contrast flash visible to birds approaching from a distance in daylight and vehicle or aircraft lighting.
Photoluminescent Glow
Glow-in-dark polymer absorbs ambient light through the day and releases it at dawn, dusk and overcast periods — the windows of highest large-bird flight activity and lowest natural visibility.
Active LED Illumination
Solar-charged blinking LEDs provide a continuously active visual signal after dark, extending protection into the night hours where passive devices alone cannot help.
The Range
Three Bird Flight Diverters,
One Engineering Standard.
Every model below is built on the same 5mm–38mm universal clamp, the same UV-stabilised polymer housing, and the same CEA-referenced mechanical and electrical clearance rules. What changes is the visibility mechanism — matched to the corridor you are protecting.
Model: AEROSPIN-V1
Aero Spin Bird Flight Diverter
The Aero Spin diverter converts even a light breeze into continuous 360° rotation, adding a dynamic motion cue to the conductor’s profile that static devices cannot replicate. High-contrast red and white flappers carry retroreflective yellow inserts and glow-in-dark polymer, giving the device three simultaneous visibility mechanisms in a fully passive, zero-power housing.
- Continuous 360° rotation from wind speeds as low as 2–3 km/h
- Best suited to open terrain and wind-reliable transmission corridors
- Zero power source, under 800g installed weight
Model: PLM/LD-V1
LED Bird Flight Diverter
The LED Bird Flight Diverter adds six high-intensity blinking LEDs per face to the standard reflective and glow-polymer housing, solar-charged with automatic cut-off and rated for over 100 hours of runtime per full charge. It is the highest-specification device in the range and the model most often specified for Great Indian Bustardcorridors, nocturnal migratory crossings, and any span requiring active protection after dusk.
- No battery or active component — nothing to inspect or replace
- +5,500 mm² retroreflective area and +12,000 mm² glow area per face
- Lowest weight and cost-per-span for network-wide deployment
Model: PLM/NLD-V1
Non-LED Bird Flight Diverter
The Non-LED diverter delivers robust, zero-maintenance protection through retroreflective stickers, glow-in-dark polymer and 360° rotational motion, without any battery, charging circuit or active component to service over its design life. It carries the lowest total cost of ownership in the range and is the standard specification for large-scale, network-wide bird collision preventionrollout.
- No battery or active component — nothing to inspect or replace
- +5,500 mm² retroreflective area and +12,000 mm² glow area per face
- Lowest weight and cost-per-span for network-wide deployment
Side by Side
Compare the Full
Bird Flight DiverterRange
| Feature / Specification | Aero Spin (AEROSPIN-V1) | LED (PLM/LD-V1) | Non-LED (PLM/NLD-V1) |
|---|---|---|---|
| Primary Visibility | 360° Wind Rotation + Reflective | Active Blinking LEDs (Solar) | Passive Reflective & Glow Area |
| Clamp Range | 5mm – 38mm Universal | 5mm – 38mm Universal | 5mm – 38mm Universal |
| Power Source / Maintenance | Passive (Zero Power) | Solar Charged (Auto Cut-off) | Passive (Zero Power) |
| Target Application | Open terrain & high-wind spans | GIB corridors & nocturnal crossings | Network-wide standard rollout |
| Design Life / Warranty | 15 Years / 5-Year Warranty | 15 Years / 5-Year Warranty | 15 Years / 5-Year Warranty |
A risk-zoned specification — LED diverters at identified hotspots, Non-LED or Aero Spin across the remaining span — is standard utility practice and keeps procurement cost proportionate to actual risk. For guidance on spacing and zoning, see our Technical Resourcessection, or talk to our engineering teamdirectly.
Where This Range Is Deployed
Bird Flight Diverters Across
Every Wire Type
Power Transmission
HV & EHV conductors, earth wires and overhead ground wires — the largest deployment category and the origin of the CEA bird flight diverter specification.
Renewable Energy
Wind farm collection cables and solar park export lines, where diverters support Environmental Clearance obligations attached to the project.
Aviation Safety
Airport perimeter fencing wires and approach-corridor cables, where the Aero Spin and Non-LED models are typically specified for daylight-dominant marking.
Wildlife Conservation
Great Indian Bustard corridors, Sarus Crane habitats and Ramsar wetland crossings, where the LED model is generally the specified standard.
Telecom Infrastructure
Tower guy wires and pole-mounted fibre routes near bird sanctuaries and Important Bird Areas, typically using the Non-LED model for cost-effective coverage.
Why the Range Works
One Clamp.
EveryRisk Profile Covered.
Building three models on one mechanical platform is a deliberate engineering choice, not a manufacturing shortcut. It means procurement, installation and inventory stay simple, while the visibility mechanism specified can still be matched precisely to the corridor being protected.
The same 5mm–38mm clamp geometry carries every model, so field crews carry one hardware standard regardless of which diverter is specified for a given span.
Aero Spin, LED and Non-LED diverters all install on energised conductors using standard hot-stick procedure — no planned outage required for any model in the range.
Every model is designed and type-tested against the same CEA technical specification for bird flight diverters, so procurement teams evaluate compliance once, not per model.
A 5-year comprehensive warranty and 15-year design life apply identically to Aero Spin, LED and Non-LED models — no fine print differences between them.
Documentation
Specification Documents
for Procurement Teams
Aero Spin, LED and Non-LED models in one document, with dimensional drawings and application guidance.
Download PDFIndividual technical datasheets for AEROSPIN-V1, PLM/LD-V1 and PLM/NLD-V1 with full test parameters.
View DatasheetsCEA specification reference, along with PGCIL, GETCO and RVPN approval documentation for procurement submissions.
Read GuidelinesCommon Questions
Choosing Across
the DiverterRange
The questions we hear most often when a utility or EPC team is deciding between Aero Spin, LED and Non-LED diverters.
Which bird flight diverter model should I specify?
Model selection depends on the risk profile of the span. LED diverters (PLM/LD-V1) suit high-priority, low-light and Great Indian Bustard corridors requiring 24-hour visibility. Non-LED diverters (PLM/NLD-V1) are the standard choice for daylight-dominant, network-wide deployment. Aero Spin (AEROSPIN-V1) is optimal for open, wind-reliable terrain where continuous rotational motion adds an extra visual cue.
Are all three models CEA compliant and utility approved? >
Yes. Aero Spin, LED and Non-LED diverters are all designed, manufactured and type-tested against the Central Electricity Authority’s technical specification for bird flight diverters, . Type test reports are available for each model on request.
Can different models be mixed along the same line? >
Yes — this is standard utility practice. A risk-zoned approach, with LED diverters at identified hotspots and Non-LED or Aero Spin diverters across standard spans, is fully supported since every model shares the same 5mm–38mm universal clamp and mounting procedure.
What conductor sizes does the range cover? >
All three models use the same universal clamp, compatible with conductor and earth wire diameters from 5mm to 38mm — covering ACSR, AAAC, AAC, OPGW and standard earthwire types across sub-transmission, transmission and EHV networks.
Can the range be installed without a line outage? >
Yes. Every model in the range is compatible with hot-stick installation procedures used by trained live-line crews, allowing retrofit deployment on energised conductors without a planned outage.
Get in Touch
Not Sure Which Model
Fits Your Corridor?
Share your line voltage, span length and risk profile with our engineering team, and we’ll recommend the right combination of Aero Spin, LED and Non-LED diverters for your project.