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Bird Guard for Large, Long-Legged Birds on Power Infrastructure
Perch Deterrent MODEL: PD-575x1020 for Extra Large Birds
TECHNICAL DRAWING — INDOLITE™ BIRD GUARD MODEL: PD-575x1020Bird Guard for Transmission Towers, Cross-Arms & Substations; Designed to Reduce Bird Electrocution, Flashovers & Power Tripping on Transmission Infrastructure
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Suitable bird species: Himalayan Griffon Vulture, Grey Heron, White Stork, Painted Stork, and other large, long-legged birds.
Bird Guard for Large, Long-Legged Birds on Power Infrastructure
The Indolite™ Perch Deterrent 575x1120 is a purpose-built bird guard engineered to stop large, long-legged birds from perching on transmission towers, cross-arms, substations and other electrical infrastructure. Built for birds with leg length above 12 inches — herons, storks, vultures and similar large avian species — the 575x1120 is one of the most effective bird electrocution prevention products available for Indian power networks.
Why Power Utilities Need the 575x1120 Perch Deterrent
Large birds often use transmission towers as elevated resting points. When they spread their wings during take-off or landing, they can bridge energised and grounded components — a leading cause of bird electrocution, flashovers and unplanned power outages. The Indolite 575x1120 makes these locations unsuitable for comfortable perching, guiding birds away safely without harming them.
Key Features
Modular Design
Each module measures 560 mm, chainable for any tower or cross-arm length.
Fast Installation
Inbuilt strap-mounting slots for quick, tool-friendly installation on towers.
14 Spear-Shaped Spikes
Long, humane spikes per module with rounded tips that deter without harming birds.
Non-Conductive Build
UV-stabilized HDPE/PP co-polymer, safe for use on live infrastructure.
Weather-Resistant
Rated for -10°C to +70°C — built for monsoon, heat and extreme outdoor exposure.
Fire-Resistant Grades
V1/V2 fire-resistant grades available on request.
Lightweight & Strong
Approx. 1850 gms ± 100 gms per module.
Applications
Ideal for high-voltage transmission towers, power transmission lines, tower cross-arms, electrical substations, transformer structures and any bird-sensitive power infrastructure — wherever large birds create a perching hazard, on lines up to 1000kV class.
Humane, Non-Lethal Bird Protection
The 575x1120 uses no electricity, poison or trapping mechanism. Its 14 spear-shaped spikes are engineered to deter, not hurt — birds remain unharmed even if they accidentally come into contact with the spikes. This makes it a responsible choice for utilities balancing grid reliability with wildlife protection.
Technical Specifications
| Model | 575x1120 |
| Product Type | Perch Deterrent / Bird Guard |
| Primary Application | Large & Long-Legged Birds |
| Recommended Bird Leg Length | Above 12 inches |
| Guard Height | 575 mm |
| Model Width | 1120 mm |
| Module Length | 560 mm (modular, chainable) |
| Number of Spikes | 14 spear-shaped spikes per module |
| Material | UV Stabilized HDPE / PP Co-Polymer |
| Colour | Black |
| Weight | 1850 gms ± 100 gms |
| Electrical Conductivity | Non-Conductive |
| Operating Temperature | -10°C to +70°C |
| Fire Rating | V1 / V2 available on request |
| Bird Safety | Non-Lethal, Humane Design |
| Suitable For | Transmission lines up to 1000kV, cross-arms & substations |
| Mounting | Inbuilt slots, strap-mounted, tailor-made clamps available |
Frequently Asked Questions (Click to Expand)
Q1
What birds is the 575x1120 model designed for?
It is designed primarily for large and long-legged birds with leg lengths above approximately
12 inches, such as herons, storks and large vultures like the Himalayan Griffon.
Q2
Where can the 575x1120 Perch Deterrent be installed?
It can be installed on transmission towers, cross-arms, substations, transformer structures and
other electrical structures where bird perching creates a safety concern, on lines up to 1000kV class.
Q3
Does the product harm birds?
No. The 14 spear-shaped spikes have rounded tips and are engineered to deter, not injure — birds
are guided away safely even if they accidentally make contact.
Q4
Is the product electrically conductive?
No. It uses non-conductive, UV-stabilized HDPE/PP co-polymer and requires no electrical power
source, so it is safe to install near live components.
Q5
Does it require regular maintenance?
The product is designed for low-maintenance outdoor operation rated -10°C to +70°C. Periodic
inspection of the mounting arrangement is recommended as part of normal infrastructure maintenance.
Q6
Can it be customized for different tower configurations?
Yes. The modular 560 mm construction chains together for flexible coverage, with tailor-made
clamps and mounting arrangements to fit different towers and cross-arms.
About Indolite Devices Pvt. Ltd.
Indolite Devices Pvt. Ltd. is a Delhi-based manufacturer of humane bird protection products for power
transmission and electrical infrastructure. Our Perch Deterrent range — including the 575x1120 for
long-legged birds — helps utilities and EPC contractors reduce bird electrocution, flashovers and
unplanned outages while protecting avian species, across India.
Get in Touch with Us
We're here to help with your bird protection needs
Mitigate Electrocution of Birds; use Perch Deterrent by Indolite Devices Private Limited.
Bird Guard - Perch Deterrent for Power Transmission Lines
Protect Birds. Protect Power Infrastructure. Protect India.
Indolite Devices Pvt. Ltd. is India's trusted manufacturer of Perch Deterrents (Bird Guards) and Solutions for Mitigating Bird Electrocution for high-voltage transmission lines, substations, and power grid infrastructure.
Large birds like peacocks, vultures, eagles, kites, and storks often perch on transmission tower cross-arms. During take-off, their wide wingspans can contact live conductors-while their feet are grounded on tower, causing fatal electrocution, power outages, power tripping and grid instability.
Introduction
Indolite™ Perch Deterrent is the most effective and economical way to prevent birds from perching on transmission towers, insulators, and cross arms. This innovative solution has proven to be a boon in preventing tripping and breakdowns caused by birds.
Indolite™ Perch Deterrent is a world-class product designed to tackle the menace of birds without harming them. Perching of birds on transmission lines and towers can cause significant issues, particularly the electrocution of large birds such as peacocks, raptors, kites, and the Great Indian Bustard.
This device is specifically engineered to deter birds, especially large species, from perching on power transmission towers. It is non-fatal and humane, ensuring that birds are dissuaded from sitting on transmission lines and towers without being harmed.
The height and inaccessibility of transmission towers make them ideal perching grounds for birds. These high vantage points provide clear views for birds and also create protected zones, away from the reach of predators.
Features
Indolite™ Perch Deterrent is designed to prevent birds from perching in unwanted places. This product is non-fatal and humane, ensuring that birds are deterred without harm.
The investment in Indolite™ Perch Deterrent pays off within a few months, and the product continues to deliver results for years. We are confident that once you install this device, you will find it invaluable.
Advantages
1. Helps in Saving Avian Species
By installing this device, we can prevent the electrocution of birds.
2. Cost Saving Due to Power Line Breakdowns
Bird-related power line tripping and breakdowns are common problems that this device helps mitigate.
3. Easy Installation
The installation process is straightforward and requires no special training. Tailor made clamps make installation easy and rugged.
4. Maintenance-Free
There are no post-installation expenses, and the device requires virtually no maintenance.
Suitability for 765kV Transmission Towers
Designed and tested extensively for installation on crossarms of up to 765kV transmission towers. Non Conductive construction of Indolite™ Perch Deterrent offers safe electrical clearances to live conductors. It also prevents birds from roosting on critical components like the crossarm, tower top and insulator strings, improving infrastructure reliability and bird safety.
765kV Crossarm Mounting
Purpose-built clamp design fits standard 765kV tower crossarm profiles without drilling or welding.
Safe Clearance
Guard height and profile maintain required air clearance from energized conductors as per applicable safety norms.
Grid-Ready
Suitable for EHV substations, switchyards, and 765kV / 400 kV / 220 kV transmission line towers.
100% Non-Metallic Construction
Indolite™ Perch Deterrent is manufactured entirely from special-grade engineering plastic. It contains no metallic components anywhere in its construction — including the base, spikes/prongs, and connecting links — ensuring it is completely non-conductive and safe for use in close proximity to live high-voltage conductors.
Zero Metal Parts
Fully non-metallic body, spikes, and clamps — no risk of flashover or conductivity.
Engineering-Grade Polymer
Same class of high-impact, non-conductive plastic used in bulletproof screens and automotive components.
Insulation Compliant
Non-conductive property confirmed suitable for direct mounting on live-line hardware and crossarms.
Installation Method
Installation is tool-minimal and does not require drilling, welding, or modification to the tower structure. The device is fitted using tailor-made non-metallic clamps designed to grip the crossarm/tower member securely.
| Step | Description |
|---|---|
| 1 | Identify perching zones on crossarm / tower peak / cross-member requiring protection. |
| 2 | Position the Perch Deterrent unit(s) along the identified member using the modular chain-link feature for continuous coverage. |
| 3 | Secure using the supplied non-metallic clamp — hand-tightened, no special tools or line shutdown required for most tower positions. |
| 4 | Link additional units end-to-end as needed to cover the full length of the crossarm. |
| 5 | Visually inspect fitment and clearance from live conductors before commissioning. |
Technical Datasheet, Dimensions & Certifications
| Parameter | Specification |
|---|---|
| Material | Special-grade engineering plastic, 100% non-metallic, UV-stabilized |
| Model / Size | [ Insert length x height / part no. per model ] |
| Guard Height | [ Insert mm / in per model — e.g. 575 mm for 575x1120 ] |
| Weight per Unit | [ Insert kg/g ] |
| Operating Temperature Range | +100°C to −20°C |
| Flame Retardancy | Flame-retardant, self-extinguishing |
| Electrical Property | Non-conductive / Insulating |
| Product Life | 10 years, maintenance-free |
| Certifications | ISO 9001:2015, Make in India, MSME Registered — [ insert test report / lab certification numbers ] |
*Detailed model-wise datasheet (dimensions, drawings, test reports) available on request — [ Insert PDF download link if available ].
Packaging & Size
Carton Packing
[ Insert units per box / carton, e.g. 50 units per carton ]
Carton Dimensions
[ Insert L x W x H in cm/in ]
Gross Weight per Carton
[ Insert kg ]
Bulk / Tender Supply
Ready stock and bulk production capacity available for large tender orders across India.
Technical Details
5. Excellent Construction
Made of special-grade engineering plastic, the same material used for bulletproof screens and sports cars.
6. Safe
Non-conductive, ensuring it does not interfere with electrical or communication transmission.
7. Flame Retardant
The flame-retardant properties of Indolite™ help extinguish fires by itself.
8. Non-Lethal
Does not kill or harm birds, simply deters them from perching in unwanted places.
9. U.V. Protected
U.V. Stabilizers make it sun and weatherproof, ensuring it works well in snow, rain, and storms. It can withstand extreme temperature variations from +100°C to -20°C.
Chain Making Feature
Comes in a modular form, allowing the creation of chains of any length, which aids in installation and adds stability post-installation.
Technical Details — Product Range
| 575x1120 | Long-legged birds — herons, storks, griffon vultures (leg length above 12 in) |
| PD300x300 | Large birds — peacocks, eagles, vultures, kites & raptors |
| BS5Nv2 | Small birds — pigeons, crows |
Bird Size Guide — Perch Deterrent Model 575x1120
Model 575x1120 is engineered for birds with leg lengths exceeding 12 inches. The guard height of 575 mm (22.6 in) is designed to keep long-legged species clear of the perching surface.
| Bird | Approx. Leg / Perch Height* | 575x1120 Guard Height |
|---|---|---|
| Himalayan Griffon Vulture | 13 in (33 cm) | 575 mm / 22.6 in |
| Grey Heron | 18 in (46 cm) | 575 mm / 22.6 in |
| White Stork | 19 in (48 cm) | 575 mm / 22.6 in |
| Painted Stork | 22 in (56 cm) | 575 mm / 22.6 in |
*Approximate standing leg/perch height for reference; actual bird size varies by species and region.
India's Leading Bird Guard - Perch Deterrent Manufacturer
Indolite Devices Pvt. Ltd. is an ISO 9001:2015 certified manufacturer specializing in Bird Perch Deterrents (Bird Guards) and Avian Protection Systems for the Indian Power Sector.
Manufacturing Credentials
✅ ISO 9001:2015 Certified – Quality Management System
✅ Make in India Certified – 100% Indigenous Manufacturing
✅ MSME Registered – Government recognized "small" enterprise
Why Government Utilities Choose Indolite?
1. Direct Manufacturer – No middlemen, competitive pricing
2. Proven Track Record – 50+ utility references
3. Technical Support – Pre-bid consultation to post-installation
4. Fast Delivery – Ready stock + bulk production capacity
5. Tender Ready – Complete documentation & compliance
Frequently Asked Questions (Click to Expand)
Q1
How do bird perch deterrents prevent electrocution?
Perch Deterrent/ Bird Guards function by creating a physical barrier that prevents birds from perching and roosting near live conductors. By blocking access to hazardous perching zones, they eliminate the risk of a bird's wings contacting energized conductors while its feet touch the grounded tower structure during take-off. This design ensures both electrical safety and bird protection.
Q2
Do bird guards require maintenance?
No. Bird Guards are designed to last over 10 years with little to no maintenance.
Q3
Is the Indolite Perch Deterrent/ Bird Guard effective against both small and large bird species?
Yes. Indolite's Perch Deterrent Model PD300x300 is engineered to discourage large birds—such as peacocks, eagles, vultures, kites, and other raptors—from perching on cross arms of transmission lines and electrical equipment.
Meanwhile, the Bird Guard Model BS5NV2 is chosen for economy and is highly effective at deterring smaller birds like pigeons and crows from nesting or perching on transmission lines. The Perch Deterrent Model 575x1120 is purpose-built for birds with leg lengths exceeding 12 inches, such as herons, storks, and griffon vultures. All Bird Guard models help prevent bird-related faults, equipment damage, flashovers, and power outages, while also ensuring the safety of the birds themselves.
Meanwhile, the Bird Guard Model BS5NV2 is chosen for economy and is highly effective at deterring smaller birds like pigeons and crows from nesting or perching on transmission lines. The Perch Deterrent Model 575x1120 is purpose-built for birds with leg lengths exceeding 12 inches, such as herons, storks, and griffon vultures. All Bird Guard models help prevent bird-related faults, equipment damage, flashovers, and power outages, while also ensuring the safety of the birds themselves.
Q4
Are Bird Guards Safe for Birds?
Yes. Bird Guard/ Perch Deterrent is a humane solution. This deters... not harms or injures the birds. These help reduce the risk of nesting near electrical infrastructure, and prevent power outages caused by bird-related faults—all while ensuring bird safety.
Q5
What is the lifespan of bird guards?
Indolite Bird Perch Deterrents are designed for a 10-year lifespan with zero maintenance. UV stabilization ensures long-term outdoor durability.
Get in Touch with Us
We're here to help with your bird protection needs
Conductor Name, Diameter & Technical Information — Download PDF
This PDF provides complete technical details of ACSR (Aluminium Conductor Steel Reinforced) conductors used in overhead power transmission and distribution lines. It includes all essential engineering data such as conductor type, diameter, stranding, mechanical strength, aluminium and steel area, and electrical resistance.
The document lists multiple conductor categories in both Metric and British sizes, giving engineers and buyers accurate specifications required for designing and selecting the right conductor. Each conductor’s outer diameter, wire size, weight per kilometre, and rated strength are clearly shown to support safe and efficient installation of transmission lines.
This PDF is especially useful for utilities, EPC contractors, electrical engineers, transmission line designers, and procurement teams who need verified and reliable technical information for ACSR conductors.
Supreme Court steps in to protect Great Indian Bustard
By- Krishnadas Rajagopal
Reference Link - https://www.thehindu.com/sci-tech/energy-and-environment/supreme-court-steps-in-to-protect-great-indian-bustard/article34075031.ece
The Supreme Court on Monday swooped-in to intervene on behalf of the critically endangered Great Indian Bustards over the birds falling dead after colliding with power lines running through their dwindling natural habitats in Gujarat and Rajasthan.
A Bench led by Chief Justice of India Sharad A. Bobde will examine on a priority basis whether overhead power cables can be replaced with underground ones to save one of the heaviest flying birds on the planet.
Attorney General K.K. Venugopal, appearing for the Power Ministry, however submitted that only low voltage lines can go underground but not the high voltage ones.
The court found further that an alternative mechanism — to install flight bird divertors — to guide the birds away from the power lines would be expensive. In fact, the court discovered that the divertors, with their recurring costs, would end costing more than installing and maintaining underground lines.
But the court suggested treading the middle path.