Car dealership - power supply

Electrical equipment, distribution cabinets, power sewerage system.

The design of electrical equipment and power supply is carried out in accordance with the Technical Assignment for the Power Electrical Equipment System and the main regulatory documents in force in the Russian Federation.

The proposed imported electric power, electrical equipment and electrical materials are certified and recommended for use in accordance with the regulatory documents and regulations in force in the Russian Federation.

The proposed modern electrical equipment meets the requirements of providing increased operational reliability, energy saving, minimum operating costs, minimum space.

Electrical equipment and lighting fixtures were selected of a protected design taking into account the class of rooms according to PUE, NPB and meets modern technical and aesthetic requirements.

Firefighting requirements, safety and safety requirements, scientific organization of labor in terms of ergonomics of electrical devices, automation of engineering support systems, centralized remote control and monitoring of the state of technological parameters and electric receivers, required illumination of rooms and workplaces are taken into account.

The low-voltage power supply network of consumers is performed with blind neutral grounding, voltage 380/220V, frequency 50Hz.

Power distribution is performed on a five-wire TNS system (3 phases, N, PE).

According to the degree of ensuring reliability and uninterrupted power supply, the consumer belongs to category III.

Power sewer

Group power, lighting and socket networks are laid on a non-combustible base of the suspended and pillow ceilings, on metal perforated trays, in cable channels, hidden in wall bars.

The supply cables and wires of the calculated section are copper. The insulation is difficult to burn - polyvinyl chloride. Cable section is selected with 25% margin to design currents. Insulation shells of cables and wires meet the requirements of the International Electrotechnical Commission (IEC) 3321 (GOST - 12176) and IEC 3323 (MIC 006886) on non-combustion .

Internal lighting

Power supply of operating lighting circuits is provided from the shield. Voltage of lighting network 380/220V, at lighting fixtures 220V.

The project uses:

- lamps with fluorescent lamps,

- lamps with compact fluorescent lamps.

"Output" light indicators are installed:

at the exit from the trading hall;

at the exit of the building.

Protective safety measures.

The following grounding line is arranged in the building:

- PE - protective ground (lead) - 5th wire in TNCS system. It is intended for grounding of electrical boards, cable channels, trays and other equipment that are not, but may be energized.

The grounding network is radial - tree-like without forming closed circuits.

The following electrical safety measures are used to protect people from electric shock in case of insulation damage:

grounding/grounding;

potential equalization system by grounding all metal pipelines, air ducts, wash housings and other similar equipment that may be energized when electrical equipment insulation is damaged;

set of protective means.

Working zero conductors and protective zero conductors are insulated from each other and from the steel structures of the building. The main grounding bus is located in the GRF room.

The adopted technical solutions comply with the requirements of environmental, sanitary, fire and other standards applicable in the territory of the Russian Federation, and ensure safe operation of the facility for life and health of people, subject to the measures provided for in the working draft.

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