Improvement

Design documentation has been developed for the reconstruction of the tram contact network, in accordance with the design assignment. The territory is landscaped. After installing the supports and laying networks, the design documentation provides for the restoration of: asphalt pavement: carriageway tram tracks area - 8,5 m2, construction: cast asphalt concrete TU 5718-00204000633-2006 - 4 cm; cast asphalt concrete TU 5718-00204000633-2006 - 4 cm; flowing concrete B25, DIN 1045 GOST 26633-91 * - 13,5 cm; reinforced concrete slab B35, DIN 1045 - 30 cm; "lean" concrete M100 (B7,5) GOST 26633-91 * - 5 cm; rubble granite brand 1200-600 fr. 40 - 70 mm GOST 7392-2002 - 23,5 cm sand 1 class GOST 8736-93 * - 15 cm; pavement per trench area - 105 m2, construction: highly porous sandy asphalt concrete grade II GOST 9128-2009 – 4 cm; rubble granite brand 1200 fr. 20 - 40 mm with gusset GOST 8267-93 - 15 cm, sand 1 class GOST 8736-93* - to be specified locally; pavement top layer after milling area - 151 m2, construction: asphalt concrete sandy dense type G grade II GOST 9128-2009 - 3,5 cm; tile paving area - 110 m2, construction: vibropressed tile GOST 17608-91 - 8 cm; cement-sand mixture 1:10 - 5 cm; crushed stone grade 800 of fraction 40 - 70 mm with gusseting GOST 8267-93 - 15 cm; sand of the 1st class GOST 8736-93 * - 52 cm; tiled paving around the contact network supports on the existing foundation area - 5 m2, construction: vibropressed tile GOST 17608-91 - 8 cm; cement-sand mixture 1:10 - 5 cm; demolition and restoration of lawns - 130 m2 with the introduction of a vegetative layer of earth of 0,20 m, in accordance with the USPH act.

Basic design decisions. Engineering equipment, utility networks, engineering activities

The project documentation provides for the reconstruction of the contact network of the tram in connection with: with a change in the suspension system of the contact wire from a transverse chain on flexible strings to a simple suspension system; with a change in the power supply circuit of the contact network (reducing the number of cabinets from 4 to 3). The project documentation provides for the complete replacement of the suspension system with insulation, contact wire and supports of the tram contact network with new ones in both directions of movement. The length of the tram network section is 1,270 km. The number of installed supports of the type OKV-22/30D is 6/4 pcs., of the SV-7,7 type is 3 pcs., while 15 supports are dismantled. The project documentation provides for the complete replacement of the tram supply cabinets. The replacement is complete with air inlets, cables and suction points and earth loops. The project documentation provides for the transfer of the existing outdoor electric lighting in connection with the reconstruction of the tram contact network. It is planned to transfer existing fixtures ZhSU-250/ZhKU-250 in the amount of 32/8 pcs. on new stretch marks and on the designed supports of the contact network. Power supply - from the designed power point (hereinafter referred to as pp) ShRU-400 (installed to replace the existing one). Estimated power p / p - 31,35 kVA, Srazr = 42 kVA after the reconstruction has not changed. The total length of the projected VLI (wire of the SIP-2 brand) is 2,004 km. Lighting control - ASUNO "Aurora" in the projected SHRU-400. Electricity metering - existing in p.p.