Power supply design of a sports facility
Completed design and installation work on the part of the power supply of power equipment of the building of a sports complex.
DESIGNING A POWER SUPPLY
In this section of the project, the basic principal decisions are presented on the issues of power supply of power electrical equipment, electric lighting and the grounding system of the object. This working documentation was developed on the basis of: - the technical task of the customer and related specialties; - architectural and construction plans; - current rules and regulations.
The main electrical receivers are:
- electrical equipment of the swimming pool, dry heat rooms and a Turkish bath (being developed separately for the project ”);
- electrical equipment of the catering unit (see arch.);
- electrical equipment of an individual heat supply station (see arch.);
- pump equipment;
- welding equipment;
- technological equipment;
- socket network, broadcast TV;
- computer networks;
- electric lighting;
- communication and alarm systems;
- automation systems.
PROJECT DOCUMENTATION OF FITNESS CENTER
The estimated power of power consumers is 333 kW, including electric lighting - 44 kW. In terms of ensuring the reliability of power supply, power consumers belong to category I and are powered at 380 / 220V, 50Hz. For the input and distribution of electricity between the electrical receivers of the building, the project provides for two main switchboards MSB, assembled on Schneider Electric equipment, which are located in the switchboard rooms of the basement and the first floors. The power supply of each MSB is carried out via two mutually reserved cable lines. At the inputs of each MSB provides for the accounting of electrical energy. Electricity meters are installed in separate metering cabinets.
For the distribution of electricity between the final consumers of the building, the project provides for secondary switchboards, assembled on Schneider Electric equipment and installed in electrical niches. The power of the shields is carried out from the MSBG-1. Power networks are carried out with cable VVGng-LS and laid: - in the corridors - behind suspended ceilings in metal trays of the Vergokan company and hidden along the walls in steel pipes under a layer of plaster (to the outlets of cleaning mechanisms); - in shower rooms, dressing rooms, bathrooms and other rooms with slatted ceilings - for PVC pipes (if there is a fire safety certificate for pipes and ceilings), along walls to electrical receivers in PVC pipes hidden under the plaster layer or behind the facing of premises ; - in office premises and offices - behind the suspended ceiling in steel pipes, along walls in cable channels of the "Legrand" company; - in the dining room, buffet, lobby - in steel pipes behind the ceiling and hidden along the walls under a layer of plaster; - in the gym - hidden in steel pipes under a layer of plaster; - in rooms without a false ceiling - on the ceiling and walls in the mini-plinths of the company "Legrand"; - in technical rooms - open on the walls and ceiling along the mounting strip; - in interfloor risers - in steel pipes. The power supply network of the fire hydrant buttons is performed by the control cable KVVGng, which is laid in steel pipes.
To protect service personnel from electric shock and the normal operation of electrical equipment, the project provides for a grounding system ТN-С-S with the separation of the PEN conductor at the MSB inputs. The power supply network with the type of current-leading conductor systems was adopted in the construction: - single-phase, three-wire; - three-phase - four and five-wire. The project provides for the re-grounding of the PE protective conductor, for which the PE buses of the MSB-1 and MSB-2 are connected by 25x4mm steel to the main grounding busbars GZSh-1, which are installed in separate wall cabinets in the electrical rooms of the basement and the first floors. In each technical room of the building, the project provides for internal circuits of protective grounding. As the grounding lines, steel with a cross-section of 25x4mm is used, laid openly along the wall at a height of 0.3 m from the level of the floor around the perimeter of the premises. Earthing circuits are separated by two earthing conductors at two points on the main earthing busbars. By lightning protection device construction belongs to category III. Lightning protection is carried out by imposing on the roof of the building an interception grid made of round steel ∅8mm cells 12x12m and connecting it to an external grounding device (see arch.) With the help of current leads made of round steel ∅8mm through 25m. Lightning conductor mesh and current leads are being developed.
in the project section of the brand "AR".
FITNESS CLUB ELNER POWER SUPPLY
This project provides the main potential equalization system, which interconnects the following conductive parts: - conductor (PEN) of the supply line; - grounding conductor connected to the grounding; - metal pipes of communications entering the building; - ventilation and heating systems; - metal enclosures of equipment and apparatus; - lightning protection. The specified parts must be connected to the main grounding bus with the help of potential equalization system conductors. In the rooms of the dry heat and Turkish bath, the potentials are to be leveled using a grid laid in the floor with a cell pitch of 250x250mm made of steel wire ∅6mm. The grid at two points is connected to the main grounding bus with a protective conductor. The grid for equalization of potentials is developed in the project section of the brand "AR". In all showers, connect the pallets to the potential equalization conductor with the PE bus of the nearest switchboard 6mm steel wire. The grid at two points is connected to the main grounding. An additional measure of protection is the installation of protective disconnect devices on the lines supplying power sockets. In places where cables pass through walls and exit them to the outside, in order to prevent water penetration and fire spreading, seal up the gaps between cable and pipe, as well as reserve pipes of easily removable mass from fireproof material. All installation work should be carried out in accordance with this project, PUE, SNiP, GOST and other guidance documents, and in accordance with the technical and operational documentation for the installed equipment. LIST OF WORK TYPES FOR WHICH IT IS NECESSARY TO DRAW UP THE CERTIFICATES OF HIDDEN WORKS Hidden wiring in pipes in the wall and in pipes behind the suspended ceiling.
Drawings in autocad dwg format lay out for download on request.