E/COVERBIRD Silicone covers for thermography and bird protection


Midsun® preformed covers, made of silicone, removable, for thermographic measurements

The E/COVERBIRD range from Midsun® comprises two references of high-temperature vulcanized silicone covers. They are designed to fit all types of transformer bushings enabling thermographic measurements on conductors while protecting birds and rodents from electrocution.




The E/COVERBIRD silicone cover is made of high-temperature vulcanized silicone, designed to fit all types of bushings on HV grid electrical transformers. These insulating covers prevent animal-caused faults on substation and distribution equipment up to 35 kV phase-to-earth.


E/COVERBIRD are flexible and adjustable for easy assembly and disassembly, without leaving residues or the need to cut electrical connections. They can be easily disassembled, use no plastic, or glue, and install without heat-shrink.


Description of the E/COVERBIRD AVIFAUNE range from Midsun®:

  • High-temperature vulcanized silicone compound
  • Standard color grey, other colors available on request
  • Insulation rating: up to 35 kV phase-to-earth
  • High resistance to UV, arcs, ozone, dielectrics


Silicone’s natural hydrophobicity and superior UV and chemical resistance guarantee durability beyond 30 years.


We offer two references depending on the dimensions of the insulator to be protected.


Contact us with your site information and project requirements.

Accessories and options

The Avifaune range includes several references:

  • E/FOURREAU range of insulating sleeves for cables and wires
  • Self-fusing insulation tapes: E/TAPE range
  • Cut-to-size insulation panels: E/PLAQUE range
  • Silicone insulating paint: E/PEINTISO range
  • Disc-shaped barriers: E/BARRIER range
  • Pre-formed standard and custom protective covers: E/COVER range


Other Midsun® solutions:

  • Self-cleaning hydrophobic silicone paint: HVIC range
  • Anti-corrosion paint: SILPROCOAT range

Technical data

Additional information

Conditions of use




Use and maintenance

Before installation:

Make sure the Avifaune product and the device are clean.



  • Place the cover on the unit.
  • Close the cover by inserting the retaining clips into the holes in the cover and pulling until they click into place.
  • Cover the insulator so that there is no possible contact between phases and earth.


Please refer to the user manual for further details.

Failure to follow good operating practices and to deal with field anomalies and defects is the responsibility of the equipment owner.


You may also like…