Power Equipment and Rows distribution
Shop documentation of power equipment have been made.
Power Equipment and Rows distribution
Distribution network 380 / 220 V is produced taking into account realization of earthing system of type TN-S to GOST P 50571.2-94:
for 3-phase networks - 5-core system
for single-phase networks - 3-core system
Three-, fair- five-cse cables are provided as conductors, with copper cores, insulation and PVC casing, type NYM and NYY, and were expedient and at great load currents - busbars.
At places of tranches from busbars boxes with load breaking switches are installed. The main power consumers of the multifunctional complex are: chilling machines, ventilation and conditioning systems, electrical lighting luminaries, pumps of heat and water supply, technological equipment of the restaurant and cafe, lifts, computer and other equipment, electrical heating of gulley, ramp. Considerable value of retailed capacity is the fighting systems, smoke extract systems, pressurization to lift shafts, halls and stat wells.
To provide power supply of essential consumers in case of emergency disconnection of normal supply system, the complex is provided with a diesel-generator substation consisting of 2 diesel-generators of nominal power 800 kVA capacity each. The diesel generators are complete with modern compact diesels by C.G. Wtson type P-800 and complete with compact diesel type 3012 TAG3A with permanent power 550 kVA. Diesel generators have tanks of diesel fuel for 8 hours work and supplied with a system of automatic activation with the help of storage battery with permanent boosting charge.
The diesel-generator station is located on level -1 of the complex. To provide power supply of highly responsible consumers a 160 kVA IPS is provided. According to the technical brief a UPS ‘GALAXY 6000" 160 kVA firm "MGE" is provided in cabinets. Accumulators should be sealed and rat requiring permanent servicing, installed IPS should send alarm signal to BMS system.
IPS cabinets, distribution boards 1МВ of uninterrupted supply and storage batteries are located in the electrical room at the ground level. Electrical heating of gulley on the roof, ramp for entering the car park are provided with the use of self-regulating cables and automatic regulators with temperature and humidity sensors. Lining of heating cable should be performed accordance with manufacturer's recommendations.
Installation of sockets 250 V, 16 A with a ground contact is provided in all common areas of the building and plantrooms for cleaning rooms of portable tools and portable luminaries. Cabling of drive and control cables performed in trays, size is chosen according to the number and DN of cables with necessary free reserve. In case of suspended ceilings cables are routed in the ceiling voids.
Cables of distribution networks of normal and emergency supply, including those from IPS, are routed in different trays or in a tray with a metal partition. Single cables for lamps, sockets, electrical appliance are laid in PVC pipes. In corridors, halts and on stats of all zones the cabling is concealed. On vertical sections of buildings the cable routing is in electrical shafts, which have separate sections for cables and busbars of normal supply, cables and busbars of emergency and uninterrupted supply, for cables of low current systems. All cable routings were go through parking should be isolated by building structures with the endurance not less than EI150.
Lighting System
The design envisages the following types of artificial lighting:
normal;
emergency (safety lighting for continuing wok and evacuation Uniting)
The type and number of luminaries installed a specific zone or roan are selected taking into account the room characteristics, its functional purpose and provision of the lighting level according to the standards and qualitative indications. Luminaries installed outside the building have protection grade IP54 and IP65.
All exits from building, camion areas, corridors, stairwells are equipped with evacuation lamps with built-in storage batteries with tine of off-line operation not less than 1 hour. Normal and emergency lighting of common areas: halls, stars, toilets, car parking etc. are controlled remotely from the BMS roan. Control of luminaries of plantrooms is performed by local switchgear. The distribution lighting network for 3-phase groups is by 5-core cables and for single-phase groups - by 3-core cables.
Energy Meter
Energy metering shall be provided according to PLE and RM-2559. The metering of power consumed by the Complex is generally provided at the side of power transformers 0.4 kV by means of 'installation of single-rate meters of active energy in cabinets.
Meters according to the Customer's statement are not installed on distribution boards of tenants. Calculation is performed according to the specific calculated power for tenants. Meters shall be connected via current transformers with accuracy rating as a maximum 0.5.
Electrical Security Measures. Lighting Protection.
Electrical 'installations of the complex 380 /220 V refer to the system with dead-earthed neutral of transformer. The design envisages an earthing system type TN-S starting from LW busbars. Earthing of busbar PE h the main Electrical room and h die main distribution board is provided with the help of the external circuit of the earthing device with resistance not greater than 4 Ohm. Busbars PE and N are 'interconnected h the main distribution board roan.
All metal parts of Electrical installations normally not under voltage, as well as all metal pipeworks, ductworks, cable trays, ducts, conduits for cable routing, all cabinets of distribution boards and control boards should be earthed. The multifunctional complex is subject to protection against lightning, with measures fulfilled for category 2 of norms CO 153-34.21.122-2003.
Lightning net and metal trusses of building connected with lightning circuit are used as lightning receivers. Lighting-conductors are laid on elevation of the building the layer of incombustible lagging. All connections of (lighting protection are performed by welding or bolted connection. Devices of protective disconnexion are also used in group nets for protection from direct connection.
Main Project Characteristics.
Installed load, kW - 992,5 kW
including:
Demanded active load, kW - 7 369,5 kW 'milting:
Demanded full load, kVA - 7 757,3 kVA
including:
Cull load is given h reduction of cos фи till value 0.95 by installation of distribution devices 0.4kV of capacitor bark.
Installation Instructions.
Installation shall be carried out according to SNIP 3.05.06-85.
The contractor shall provide the final coordination between the building structural elements, technical equipment and Electrical Contractor to choose all types of Electrical equipment and to agree its types with custom and state inspections. All Electrical equipment stall be certified for use in the Russian Federation. Contractor shall develop control circuits schemes of motor control centers according to technological retirements.
Exact locations shall be verified at the site depending on the actual equipment arrangement.
Electrical equipment shall be installed on height:
Socket outlets h common areas -0,8 m
Socket outlets in garage and technical areas - 0,3 m
lighting switches (push-button, etc.) - 1,0 m.
Mechanical equipment safety switches shall be installed at the point of flexible conduit connections on steel structure.
shall be provided for easy recognition with color:
blue - neutral conductor
yellow-green - protective conductor