PJSC Stroytransgaz completes the construction of "TEC-20 - Kozhevnicheskaya 1,2 cable line"

PJSC Stroytransgaz has completed the construction of "TEC-20 - Kozhevnicheskaya 1,2 cable line" with a length of 7.15 km. The project has been implemented at the commission of "High Voltage Cable Grids" - a branch of JSC MOESK (Moscow United Electric Grid Company). The construction has been completed in one year, the contract for works execution was signed in December 2013.

From TEC-20, generating power energy, the cable line installed by STG will supply power to Kozhevnicheskaya substation, from where it will be supplied to consumers via lower voltage cable lines. The project improved the quality of power supply of both the South and the Central administrative districts, and enabled new consumers connection.

According to the contract, STG performed the construction and installation works and precommissioning, and procured materials and equipment.

STG laid out around 70 km of cable. "Kozhevnicheskaya 1,2" is a double-circuit line (throughput capacity - 1,200 amperes), therefore two lines were being laid out simultaneously with three cables installed in each.  Additionally, the fourth stand-by cable was installed at most sections.

The line was routed through the South and the Central districts of Moscow, works had to be performed in such crowded streets as Vavilova, Ordzhonikidze, Shabolovka, Bolshaya Serpukhovskaya, Dubininskaya and others. In order not to disturb the traffic, the works were being performed at night time, like for example on Lestyeva street.

The most part of Kozhevnicheskaya line is laid out in enclosed gangways using the horizontal directional drilling method. The enclosed gangway method is used wherever the line crosses the underground utilities. Th above method allows almost not to destroy the road surface, asphalt is "pierced" locally in inlet and outlet points of underground sections where the cable installed.  Under the project, STG's specialists constructed twenty one enclosed gangways, in total, three out of which run though the Moscow railways.