The ЭЗ-385 devices are designed to protect birds from electric shock on overhead power lines (OHL) through fecal streams. Additionally, their use prevents OHL outages caused by electrical flashovers of insulators due to contamination by bird droppings, as well as corrosion products and other pollutants flowing from the crossarm onto the insulators.

Design and Installation

The devices are manufactured with internal (mounting) diameters of 16, 20, 24, and 32 mm. They are installed on the neck of the clevis pin, to which the upper insulator of the string or polymer insulator is attached, or on the upper end fitting of the polymer insulator. They comply with the requirements of STO 34.01-2.2-011-2015 of PJSC "Rosseti" and are manufactured according to TU 3449-001-52819896-2013. Approved and recommended by the Russian Bird Conservation Union.

Design Advantages

• Made of plastic resistant to ultraviolet radiation, bird droppings, mechanical loads (wind, ice, etc.), and electric arc.
• The transition sleeve is made of softer plastic or thermoelastic plastic.
• Non-flammable (flammability class FV(PV)-0 according to GOST 28779).
• Service life of at least 40 years.
• Fastening elements are made of stainless or galvanized steel.

Technical Specifications

• ЭЗ-385-1: for OHL 6–110 kV, diameter 16 mm, weight 0.57 kg.
• ЭЗ-385-2: for OHL 6–110 kV, diameter 20 mm, weight 0.56 kg.
• ЭЗ-385-3: for OHL 6–110 kV, diameter 24 mm, weight 0.55 kg.
• ЭЗ-385-4: for OHL 6–110 kV, diameter 32 mm, weight 0.53 kg.