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DLYa_PEREVODA_PS_Oktyabrskaya_en.docx
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      1. Handing over in exploitation of the earth system

During handing over in exploitation of the system of grounding Contractor must give Customer the followings documents:

a) executive charts of earthings devices;

b) information of elements of earthings devices;

c) acts on implementation of the hidden works;

d) including protocols of acceptance tests measurings of foot-pace tension and tension touches which must be executed during starting-up and adjustment works.

All metallic parts of electric equipment and power settings which can appear under tension in the case of damage of isolation must be earthed in accordance with the requirements of national standards and IEEE 80 - 2000/din-vde 0101.

      1. Lighting system

The lighting system of the outdoor part of the substation shall be implemented using floodlights with halogen bulbs. The floodlights shall be installed on floodlight platforms of individual lightning rods.

The quantity of the floodlights is based on the requirement of necessary minimum illumination for the disconnectors and power transformers (10 lux), for the circuit-breakers, current and voltage transformers (5 lux). The minimum illumination level in the horizontal plane for the main passage is 1 lux, for other passages 0.5 lux.

Into buildings the working and emergency system of illumination is assumed with switching on the system of direct-current at disappearance of supply pressure. Illumination of apartments of buildings is assumed lamps with economic lamps. Tension of working network of illumination 380/220 In alternating current, by an emergency - 220 In direct-current, evacuation - 220 In direct-current. Illumination of apartments is executed concordantly DBN V.2.5-28-2006.

      1. Biological protection

As per the "Engineering design standards of AC SS with highest voltage of 6-750 kV" GKD 341.004.001-94, item 8.14, and GOST 12.4.154-85 "Screening devices for protection against electrical fields of industrial frequency", the system of biological protection of the substation's personnel against impact of electromagnetic field at the Switchgear 330 kV and Switchgear 110 kV. Asper GOST 12.4.154-85, the screens shall be installed near the work stations (work places), if the electrical field intensity exceeds 5 kV/m, and canopy-type screens shall be installed over pedestrianpaths if the electrical field intensity exceeds 15 kV/m.

    1. Requirements to works and structural materials

      1. Concrete and reinforced-concrete structures

The supports of the gantries shall be made of concrete similar to concrete of В40 class (strength) and F100 class (frost resistance), in accordance with SNiP 2.03.01-84 "Concrete and reinforced-concrete structures".

The following materials shall be used for reinforcement of supports of the gantries:

а) rod-type hot-rolled reinforcing steel,with parameters similar to:

  • Steel of AV class, grade 23X2G2T as per DSTU 3760-98;

  • Reinforcement bars of A800S class as pr DSTU 3760-98;

б) standard reinforcing wire, with parameters similar to wire of Вр-I class as per GOST 6727-80.

The supports under the equipment shall be made of concrete similar to concrete of В15 class(strength) and F100 class (frost resistance), in accordance with SNiP 2.03.01-84 "Concrete and reinforced-concrete structures".

The following materials shall be used for reinforcement of supports:

  • Rod-type hot-rolled reinforcing steel, with parameters similar to steel of AI class as per GOST 5781-82. The chemical composition of reinforcing carbon steel shall correspond to the chemical composition of steel of St3 grade as per GOST 380-94, reinforcement class is A240S as per DSTU 3760-98.

  • Rod-type hot-rolled reinforcing steel,with parameters similar to steel of 25G2S grade as per GOST 380-94,class Alll as per GOST 5781-82, reinforcement class A400S as per DSTU 3760-98.

The elements of cable trays shall be made of concrete similar to concrete of В15 class (strength) and F100 class (frost resistance), in accordance with SNiP 2.03.01-84 "Concrete and reinforced-concrete structures".

The following materials shall be used for reinforcement:

  • Rod-type hot-rolled reinforcing steel,with parameters similar of steel of Al class as per GOST 5781-82. The chemical composition of reinforcing carbon steel shall correspond to the chemical composition of steel of St3 grade as per GOST 380-94, reinforcement class is A240S as per DSTU 3760-98.

  • Standard reinforcing wire , with parameters similar to wire of Bp-l class as per GOST 6727-80.

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