Daytime marking of high-voltage power line wires.
According to the requirements of the IKAO and the ROSSETI industry standards “Markers for overhead power lines” in the dimensions of overhead lines with a voltage of 35 kV and above must be used on overhead line elements located in the area of the airfield and air routes that rise above the established obstacle restriction surfaces, as well as objects located in the traffic and maneuvering zones of aircraft, in the area of small aircraft flights, when crossing roads of category IA, IB, IB, at large crossings, and in the airfield area.
Krasny Kvadrat LLC has developed and produces signal balloons markers (CMM) in the dimensions of overhead lines with voltage from 35 kV and above, to ensure the safety of aircraft flights, as well as to ensure the integrity of the overhead line and its trouble-free operation. A special feature of CMMs is that they belong to the third class of CMMs and are designed to be placed on lightning cables, OKGT, OKFP and wires. To confirm compliance with the technical requirements of PJSC ROSSETI, a set of tests was carried out as part of the equipment certification. The daytime marking of overhead power lines (SHM) developed by Krasny Kvadrat LLC is successfully used as an early detection system for overhead lines.
Technical parameters of the CMM:
| Parameter names | Value for execution |
| Diameter of CMM | 600 mm |
| Overall size | 760 mm |
| Climate version | UHL 1 |
| Wire diameter for mounting | 8-37.7 mm |
| Colour | red, orange or white, or combined-white/red, white/orange |
| Weight CMM with mounting hardware | 6 kg |
The design of markers for overhead lines ensures a service life of at least 40 years.
Implemented objects:
♦ Modernization of the 330 kV Leningrad NPP-2-Gatchina overhead line in 2021.
♦ Modernization of the 330 kV Leningrad NPP-2-Kingisepp overhead line in 2021.
♦ 330 kV Onda HPP overhead line — 330 kV Petrozavodskaya substation in 2021.
The production of Krasny Kvadrat LLC is located on its own territory, equipped with the latest equipment and is constantly being improved to optimize the full cycle of work. Long-term partnerships have been formed with domestic manufacturers of components and spare parts.
The implementation of the CMM is aimed at maintaining the current policy of import substitution of equipment and materials used in Russia.