Why are balls needed on power lines? Signal marker balloons for daytime marking of overhead communication lines and power lines

PC Aston-Elektrotekhnika LLC is a leading Russian manufacturer of barrier aviation balloons, meeting the requirements of STO JSC FGC UES 56947007-29.240.55.192-2014 “Standards for the technological design of overhead power lines with a voltage of 35-750 kV” and ICAO, “Appendix 14. Aerodromes. Volume 1. Aerodrome Design and Operation,” 4th edition, July 2014. and GOST R 51177-98 “Linear fittings. General technical conditions".

Advanced technologies implemented in the design and production of pilot warning systems make it possible to achieve maximum efficiency both in terms of visual information content and in terms of manufacturability during installation and operation.

The unique development of aviation markers from the Russian manufacturer is the result of the creative efforts of engineers and technical specialists of PC Aston-Electrotechnika LLC, the practical implementation of import substitution programs.

Description
Aviation barrage marker balls are used to mark high-voltage wires for the purpose of visual warning to civil and commercial pilots. military aviation about the presence of power lines, especially those passing through water obstacles and gorges. Aviation barrage balloons for overhead lines are clearly visible against the background of any terrain.

The marker ball is made of fiberglass reinforced plastic and coated with a special compound that protects against ultraviolet radiation and fading.

Aviation markers for power lines are available in white, red and orange. Barrage balloons are located on the highest wire (cable) of the overhead line and are installed in an alternating color scheme of white and red or white and orange balloons, which ensures their best visibility.

Advantages
Glass fiber reinforced plastic is a highly durable material that is resistant to various atmospheric phenomena and temperature changes. The climatic design corresponds to UHL1.
The mounting clamps are made of corrosion-resistant material.
The dimensions of the wire clamps are suitable for power line wires and cables of all existing diameters.
Water drainage holes prevent condensation from accumulating inside the balls.
Design features components reduce the cost of transporting disassembled balls.
A specially designed spiral protector on which the ball is installed ensures protection and safety of the wire (cable).
Marker balls do not require maintenance throughout their entire service life.

Application
Cable cables supporting guyed masts.
Main overhead lines.
Distribution networks.

I still don’t understand what kind of balls are strung on the power line wires in the place where the power line crosses the roads? Who knows?
I saw such things all the time, and in those places where power lines cross the road, there are none on the right or left.
Definitely not elements of road infrastructure: flow sensors, cameras, etc., they are located on special poles, not wires.
In general, I am still tormented by the question. Help!

Quote:
Well, you found a landmark :)) I’ll try to photograph them for you, Mikhail, if I don’t forget :)

2Nini,
Yes, exactly red or orange balls. If this is for airplane/helicopter pilots, then why are they strung in those places where the wires cross highway. In other places there is nothing on the wires. That is, they hang strictly in the span of wires that is above the road. In my opinion, it is illogical to land a helicopter on a highway if there is a field nearby.
Elena’s version seems more logical to me, that these are insulators, although I’m not sure.

Quote:
maybe so, but one day on the autobahn we got into a “dead and hopeless” traffic jam due to an accident that happened about a kilometer and a half from us. So, I myself saw a helicopter descending onto the highway with rescuers who quickly, if you can call it that, loaded up the especially seriously wounded to take them to the hospital. Probably, these balls are hanging for such emergency cases.

I will also express my humble opinion :)
Balls on power lines are a preventive measure against coronary discharges that interfere with radio signals (radio, mobile connection, ...) cars passing under these lines. In fact, these balloons are hung not only and not so much over roads, since coronary discharges, in addition to the usual communication interference, also lead to loss of electricity. Apparently, in the Czech Republic the priority is communication.

However, how many of us, power engineers...
Colleagues saw it in the Czech Republic, I recently visited Italy.
People from science were also asked questions. Initially, there were assumptions that these were weather sensors, necessary, among other things, for melting ice. But their number does not fit into this assumption! So the question is open! :-)

perhaps these are multifunctional “devices” :-))) by the way, if these are markers for Vehicle, then not for flying (they are located too low), but just for those driving along the highway - oversized vehicles such as containers, cranes, etc. where the height adjustment takes place. Well, the interference factor is also not ignored. We saw such balls in Italy and Spain, wherever power lines cross the route and in Germany.

Most often in open areas, for example, far from cities, you can notice large red balls placed on electrical wires high-voltage power lines. These orbs are usually found in places where there aren't really many other different objects. In essence, this is a kind of warning that there are power lines in this area.

The big red balloons that hang on power lines in some rural area are primarily designed to help airline pilots spot the lines so they can avoid colliding with them. Balloons are often found on power lines surrounding small airports in open areas and are included when architectural designs are being made for homes in that area. Airports in cities don't often need these markers because power lines are far from airports and pilots can more easily see the runway and any obstacles that exist in their path.

When there is a small local airport in a rural area, these display balloons help guide pilots when they are about to land on the runway. Other places where you might see these orbs are power lines that cross rivers, canyons, or ravines. In these locations, the poles are far apart and power lines may be difficult to distinguish from other objects and the landscape.

In addition to being used at airports, such balloons are used in other areas where aircraft may occur frequently. For example, many hospitals have a helipad for speedy transfer of patients. Since a hospital is not located in the same way as a large airport, the balloons can be placed on power lines near the hospital to help pilots spot the hospital in time. If there are areas where emergency medical evacuation is common, the balloons can be used on lines in those areas as well.

Red balls are often used as warning indicator balls. While red is one of the most common colors for warning and hazard communication purposes, other colors are available. The color used is determined mainly by the surrounding landscape, and the color that stands out the most is applied. Many of these balls are red, white or Orange color. In many cases, you will see a combination of white and another color for better visibility. Variable colors help draw pilots' attention to the wires and change the course of the plane or other aircraft in time.

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