Bird spikes fitted along the edge of a cable tray

Bird & Pigeon Problems on Cable Trays

A cable tray is a continuous horizontal perch running the length of a plant, and it sits directly above the things you least want droppings on — switchgear, panels, conveyors, production lines. It is also perforated, which means it is fixed differently from every other surface on this site.

At a Glance

Trays are used by birds for the same reason they are useful to engineers: they run in long straight lines at a convenient height, near the roof, out of everybody's way. Birds perch along the edge, and where the tray is wide or has a return lip, they nest inside it among the cables.

The consequence is not cosmetic. Nesting material sits directly against cable insulation, and droppings fall onto whatever the tray runs over.

Why Adhesive Fixing Is Wrong Here

Perforated tray needs mechanical fixing, not glue

Spikes on masonry are usually bonded. A cable tray is perforated, often galvanised, frequently dusty or oily, and sometimes warm. Adhesive on that surface fails, and when it fails the strip drops onto whatever is below.

The correct method is mechanical fixing through the existing perforations — cable ties or clips through the slots, at intervals along the strip. No drilling, nothing new penetrating the tray, no adhesive near cables, and it can be removed later without leaving a mark. Ask for the base to be fixable this way before you order.

What It Actually Risks

ImpactDetail
Droppings on equipment belowTrays run over panels, motors, conveyors and work areas. That is what the tray is for, and it is what makes the roost expensive.
Nesting material against cablesDry twigs, feathers and paper packed into a tray sit directly against insulation and restrict any heat dissipation the cables rely on.
Combustible material in a plantA dry nest in a cable route is material that should not be there, and it is the point a safety officer will raise first.
Contamination in food and pharmaA tray over a production line is an audit finding waiting to be written up.
Corrosion on the tray and fittingsDroppings are acidic and sit in the tray base, where they stay damp.
Access for maintenanceNobody wants to pull cable through a fouled tray, so work gets deferred.

Where They Sit on a Tray Run

Junctions and bends are worth protecting first if the run is long and the budget is not unlimited. They are where the birds start.

Two Approaches

Spike the Tray Itself

Strips along both side rails, fixed through the perforations. This suits a run you can reach, and it is the right answer when the tray is the only problem surface.

Net the Roof Void Above

Where the tray is one of many surfaces — trusses, purlins, girders, light fittings — spiking each one individually is not practical. Horizontal netting below the roof structure separates the whole void from everything under it, tray included.

Which one depends on the count

If the tray is the problem, spike the tray. If the tray is simply the surface you noticed first and there are trusses, purlins and light fittings above it also in use, spiking the tray moves the birds two metres up. In that case the answer is the building-level approach.

Which Product Fits

Bird Spikes

Narrow base, fixed through the tray perforations with ties or clips at intervals. Both side rails need doing — one side leaves a perch on the other.

Fits: tray side rails, covers, junction boxes, support brackets

Non-conductive and flame retardant. It is transparent polycarbonate, not metal — it will not interfere with electrical or communication transmission, and it is self-extinguishing. On a live cable route those two properties are the reason this is specifiable at all, and they are the first thing an electrical engineer will ask about.

View Bird Spikes

Pigeon Spikes

For wide trays and ladder-type runs where the rail is broad enough that a narrow strip leaves usable footing beside it.

View Pigeon Spikes

Anti Bird Net

Where the tray sits within a roof structure that is being used generally. Netting below the trusses protects the tray, the equipment and the floor in one installation.

View Anti Bird Net

Clearing a Tray Safely

  1. Treat it as electrical work. Coordinate with whoever is responsible for the run before anybody touches it. Isolation may be required.
  2. Check for active nests. Most wild birds in India are protected under the Wildlife Protection Act, 1972. If there are eggs or chicks, wait until they fledge, then clear and protect immediately.
  3. Cover or shut down what is below before clearing at height.
  4. Remove material by hand, damp not dry. Do not hose a cable tray.
  5. Inspect the cable insulation where a nest has been sitting against it, and report anything damaged.
  6. Fit spikes to both rails while the run is clear, using mechanical fixings only.
  7. Add it to the plant walk. Trays are checked rarely, which is exactly why they get colonised.

By application: cable trays, factory, warehouse.

Residential, Commercial and Industrial

Residential

Rare, but society basements and service shafts have tray runs, usually alongside the pump room and lift machine room.

Residential →

Commercial

Service floors, basements and plant rooms in offices, hotels and malls, generally specified with the condenser deck above.

Commercial →

Industrial

The main case. Long runs over production areas, and usually part of a wider building-level specification.

Industrial →

Why Choose SpikeZone

SpikeZone Installations

Frequently Asked Questions

How do I stop birds sitting on cable trays?

Fit spikes along both side rails, mechanically fixed through the tray perforations. Doing one rail leaves a perch on the other. If the roof structure above is also in use, netting the void is the better answer.

Can spikes be fixed to a cable tray without drilling?

Yes, and they should be. Cable ties or clips through the existing perforations avoid any new penetration, avoid adhesive near cables, and can be removed later without leaving a mark.

Why not just use adhesive?

Galvanised, dusty, sometimes oily and sometimes warm — a cable tray is close to the worst surface for adhesive. When it lets go, the strip lands on whatever is below.

Are nests in cable trays a fire risk?

Dry nesting material packed into a cable route is combustible material where it should not be, sitting against insulation and restricting heat dissipation. It is normally raised as a safety finding, and it is the reason most plants act.

There are already nests in the tray. Can we clear them?

Not while there are eggs or chicks — most wild birds in India are protected under the Wildlife Protection Act, 1972. Plan the clearance for after they fledge, coordinate with the electrical team, and protect the run immediately afterwards.

Should we spike the tray or net the roof?

Count the surfaces. If the tray is the only one in use, spike it. If the trusses, purlins and light fittings above are also being used, spiking the tray just moves the birds up.

What quantities do you supply?

Industrial scale. Tray runs are measured in hundreds of metres and quoted by running metre, with both rails counted.

Birds on Your Cable Trays?

Send photographs of the tray run and of the roof structure above it. We will tell you whether spiking the tray solves it or whether the void needs netting — and the running metres either way.

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