27. The scope of works and services

    1. General Provisions

List of works

Design work to be performed by the Contractor under this Lot include the development, coordination and approval of the project (P) and working documents (WD) on the reconstruction of Substation.

The complex preparation, construction, installation and commissioning work under the terms of the construction contract "turnkey" to be performed by the Contractor includes the:

• reconstruction of switchgear-330 kV with the dismantling of all the equipment of the existing AIS 330 kV outdoor switchgear and construction of a new building for the installation of 330 kV switchgear and general station control point (AIS);

• installation GIS-330 kV and insulating gas SF6 conductors with bushings «isolating gas- wind» for AT and WL;

• construction of new roads to new buildings switchgear 330 kV, 110 kV gas-insulated switchgear, substation control;

• Update existing pavement intra roads after construction (including utilities);

• implementation of a new coating of asphalt concrete adjacent the existing highways;

• connecting АТ-1, АТ-2 to GIS-330 кV;

• connecting АТ-1, АТ-2 to GIS -110 кV;

• connecting WL-330 кV to GIS -330 кВ; (1 line);

• connecting CWL-110 кV to GIS -110 кВ (6 line`s);

• connecting WL-110 кV to GIS - 110 кВ (2 line`s);

• connecting Т1 – Т4 to GIS -110 кВ (4 tract);

• Prefabricated drainage trays. Construction of road crossings through trays;

• Reconstruction of the fire AEAO system in terms of new buildings;

• execution of works for the future connection of AT-3, CL-330 kV, 110 kV.

• Reconstruction of 110 kV with the dismantling of all the equipment of the existing 110 kV and construction of a new building for the installation of 110 kV gas-insulated switchgear;

• installation of 110 kV switchgear and cable inserts for connecting AT and overhead line;

• installation of new portals and the charging of 110 kV new portals (with the installation of new equipment, interconnection and processing of HF channels of communication);

• dismantling of the existing inner mesh fence and equipping of a new substation at the end of construction and installation works ;

• overvoltage protection (construction of lightning);

• arrangement of ground newly constructed buildings and structures. The accession of new ground loops to the existing substation earthing;

• improvement of the potential equalization in the switchgear-330 kV, 110 kV gas-insulated switchgear, substation control;

• laying of power and control cables through the territory of the SS (in surface and underground cable trays);

• organization of the territory lighting SS in accordance with the requirements of regulatory documents;

• landscaping;

• delivery of the completed project into operation;

• staff training..

28. The volume of the mounted high-voltage equipment

The equipment is mounted in such basic units and structures:

1. Grounds autotransformers

• 330 kV surge arresters;

• 110 kV surge arresters;

• 110 kV power cables with cable end sleeves;

2. Linear portals overhead 330 kV

• 330 kV surge arresters;

3. Linear portals 110 kV

• 110 kV surge arresters;

• 110 kV power cables with cable end sleeves;

4. GIS room-330 kV

Installation of equipment for gas-insulated switchgear complete.

5. GIS room-110 kV

Installation of equipment for gas-insulated switchgear complete.

6. List and the number of high voltage equipment

Table 1. Total number of high-voltage electrical equipment supply and installation

№	Name of equipment	Units. measurement.	Amount
	Terminator overvoltage 330 kV (2 AT, 1 WL)	Things	9
	Terminator overvoltage 110 kV ( 2 АТ, 2 WL, 6 CL)	Things	12
	The design of a flexible busbar 330 kV for АТ	Set	2
	The design of a flexible busbar 110 kV for АТ	Set	2
	GIS 330 kV gas-insulated electrical conductors and with bushings type "isolated gas - air"	Set	1
	GIS 110kV	Set	1
	110 kV power cable with cable terminals for flexible bus	set	1

All high-voltage equipment is supplied with the reference metal racks, rack dimensions are determined by the Contractor in the performance of design works. The volume and scope of supply, the characteristics and parameters of high-voltage equipment are given in "Table of technical requirements"

For all installed gas-insulated equipment of 330 kV and 110 kV Contractor delivers a set of service equipment for filling the insulating gas equipment and tools for maintenance.

Note: Scope of delivery, performance and parameters of materials, devices, other SS systems are given in the relevant tables of data requirements.