Electrical Insulating Sleeves

Electrical insulating sleeves are used for cable insulation in low-voltage electrical machines and devices.


Koszulki elektroizolacyjne

Epoxy Post Insulators

Post insulators made of cast epoxy and are used in outdoor and indoor conditions in AC installations and equipment. They are designed to operate in temperate climate, i.e. in between 25°C and +40°C and a relative humidity up to 90% in atmospheric air free of such pollutants as: dust, fumes, corrosive vapours and gases.


Izolatory wsporcze epoksydowe

Other Silicon Insulators

Post insulators made of cast epoxy and are used in outdoor and indoor conditions in AC installations and equipment. They are designed to operate in temperate climate, i.e. in between 25°C and +40°C and a relative humidity up to 90% in atmospheric air free of such pollutants as: dust, fumes, corrosive vapours and gases.


Izolatory wsporcze aparatowe

Glass-Epoxy Profiles

Glass-epoxy profiles are used as insulating and structural components of electrical equipment, devices and apparatus (motors, transformers, generators).


Profile szkło-epoksydowe

Composite Hollow Insulators

Composite hollow insulators are used in outdoor AC electrical equipment or indoor with rated voltages between 1 kV and 800 kV and frequencies to 100 Hz, or in DC equipment with rated voltage above 1.5 kV.  They usually serve as enclosures (covers) for current transformers and power transformers, circuit breakers, bushings, etc. and surge arresters or other electrical equipment.


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Glass-Epoxy Tubes

Fibre Reinforced Polymer (FRP) glass-epoxy tubes are made by winding glass fibre saturated with epoxy composition on metal cores. The tube structure is programmed. It consists of successive overlapping layers of fibre, each with a specific winding angle. The direction of fibre layering in the layers depends on the type of loads carried by the tube.


Rury szkło-epoksydowe do celów ogólnotechnicznych

About us

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The Electrotechnical Institute, 3rd Pilot Plant in Międzylesie was established on 1 January 1966.

The Company manufactures electrical insulating products for the power industry. It provides a wide range of products, including electro-insulating sleeves, wedges

and epoxy glass tubes, linear composite insulators, post insulators for power lines and traction lines, and apparatus post insulators.

We are the largest Polish manufacturer of composite hollow insulators and a leading supplier in the global market.

We use winding, saturation and pultrusion (stirring) technologies for glass fibre and epoxy resins and LSR liquid silicone injection.

In terms of supplies of materials and services, we cooperate with carefully chosen and proven partners.

3rd Pilot Plant holds the Integrated Quality Management System Certificate for Management Systems according to ISO 9001; 2015, ISO 14001: 2015 and 18001: 2007 with regard to design, production and distribution of composite products, mainly for power engineering applications.

Our product catalogue contains an overview of products and basic technical specifications. We also provide other composite products designed and manufactured according to individual customer needs.

Feel free to check our products and let us know what you need!

 

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Contact

Łukasiewicz - Instytut Elektrotechniki
Departament Doświadczalno-Produkcyjny
(Zakład Doświadczalny III)

ul. Wojska Polskiego 51
57-530 Międzylesie, Polska

E-mail addresses:

bok@iel.lukasiewicz.gov.pl   (sale)
biuro@izolatory.pl   (Director's office)

Telephones:

+48 748 126 395   (general)
+48 727 447 127   (foreign sales)
+48 727 447 116   (domestic/foreign sales)