Treasury of knowledge

The treasury of knowledge features interesting content from the field of electric power transmission.

Division of Electrical Networks

Electrical networks are classified in terms of their voltage: low-voltage, medium-voltage and high-voltage networks. The ELES Company manages the latter, the high-voltage transmission network in Slovenia.

Shapes of electricity pylons

In Slovenia, the most common shapes of pylons are "fir tree", "barrel", "the Danube", the "Y-pylon" and the “H-pylon”.

Air Transport Safety Warnings

To ensure the safety of air transport, the upper parts of overhead power line pylons near airports are coloured in red and white, and red-white marking balls are also installed on protective conductors.

Bird Protection Warnings

Since some bird species while flying do not notice protective conductors, they easily collide with the conductors and get injured. To protect birds, we installed black and white flags which move due to the winds.

Personal protective equipment for work at height

Overhead power lines maintenance workers use protective equipment for working at height; the equipment comprises a helmet, climbing safety belt, Y-rope, retractable type fall arrester and a slider for the fixed protective system.

The first useful bulb in the world

The first useful light bulb was made by the American inventor Thomas Alva Edison (1847-1931). After many of his attempts failed, he succeeded in producing a carbon filament bulb. The Museum in Laško exhibits the bulb in its original form alongside its mould.

The first Slovenian book on electricity from 1897

»A special lure surrounds electricity and everything associated with it. A young man discovering the secrets of this physical science for the first time is most interested in the chapter on electricity.« A quote from the preface to the first Slovenian book on electricity (1897). Author: Ivan Šubic (1856–1924).

Power plant telecommunications from 1988

Electric power facilities are often located away from the usual telecommunication lines. Therefore, transmission lines are the only option for a reliable and economic connection. This is the reason for establishing the first high-frequency connections through transmission lines as early as 1920.

Maintenance man’s safety belt from 1956

Means of protection and protective equipment include portable and transportable devices used for protecting workers from electrical shocks, electric arcs, electric fields, the products of burning and falls from a height.

Transmission line protection device from 1976

In order to ensure the safe, reliable and uninterrupted supply of electric power, all energy devices must be protected against the damaging effects of electrical (current and voltage) overloads, short-circuiting, excessive overheating and asymmetry.

Generation unit from 1903

The Fala-Laško Museum of Electric Power Transmission also features a unique generation unit with a Francis spiral-shaped turbine from 1903. This is the first high-pressure device in Slovenia with a falling water column of 104.6 m and one of the first hydroelectric power plants in the world with a falling water column above 100 m.

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