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Bird protection insulators
Bird protection insulators are insulating material covers that are installed on fixings or conductors on HV overhead power lines to nominal voltages between 1 and 70 kV to protect large birds against collisions or direct contact with the supports and/or power cables.
There is no specific category for this type of product, and they are usually classified according to the elements or fixings they cover, and can be any of the following:
Insulators for aerial conductors
Insulators for line terminals
Insulators for terminals
Insulators for securing clips
Insulators for suspension clips
Insulators for line connectors
Insulators for short-circuits
Tests applied
The bird protection insulators are classified according to the raw material or the finished product with the geometry of the fixing to cover.
Material composition tests:
Mechanical
Shore hardness test
Tensile strength and resistance to stretch to break point test
Tear test
Electrical
Inflammability or glow wire test
Dielectric rigidity test
Climate
Climate ageing test
Ozone resistance test
Tests on complete elements of bird protection insulators
