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Mitrofanevskoe Highway, 8AB
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Call to order: 8 (800) 511-59-77
Selected city:
St. Petersburg
Mitrofanevskoe Highway, 8AB

Electrical installation work with the connection of an ATS in Yandex telecommunication rooms in Petersburg

Client Yandex
Фото
Solution

In 2021, Techexpo LLC carried out electrical installation work with the connection of an ATS in Yandex company's telecommunication office rooms in Petersburg (Benois business center).

 

The next work was done:

  • Replacement of automatic switches in the cells of TP No. 6 RU-0,4 kV -2 pcs.;
  • Installation of cabinets in communication rooms - 10 pcs.;
  • Laying cable lines - 60 pcs.;
  • Stripping of laid cable lines (both sides) – 120 pcs.;
  • Connection of laid cable lines (on both sides) - 120 pcs.;
  • Dismantling of existing cable lines from switchboards to final power receivers – 49 pcs.;
  • Pre-commissioning;

The work was carried out in an existing 0.4 kV electrical unit, and the transfer of consumers was carried out during non-working hours and on weekends to a newly mounted switchboard according to the working documentation: TP-0288_09_08-EOM.

As-built documentation: ATS and internal power supply of Yandex telecommunication rooms.pdf

Test program for ATS, switchgear, protection devices, cable lines, grounding.pdf

For the reception and distribution of electricity, a switchboard (switchboard-ATS) with an emergency automatic switch transfer (ATS) is provided. Switchboard-ATS is powered from the built-in transformer substation No. 6 of the building via two mutually backed-up cable lines. For uniform loading of supply lines, a 2 in 2 ATS scheme based on ABB ATS022 equipment was adopted.

Distribution and group networks from Switchboard-ATS and group shields Switchboard are implemented with a five- and three-core cable PPGng(A)-HF: open - in PVC pipes made of non-combustible PVC compound, along cable trays.

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