H0450-PE-RL-E-5001-00

HOSPITAL DESIGN (DETAILED) &SUPERVISION CONSULTANCY SERVICES FOR

CLINICAL CENTER OF SERBIA IN BELGRADE

Tender No: MOH/EIBPIU/CC/07/SE/01LOT 1 (CCS in Belgrade)

DETAIL DESIGN

October, 2011

TRANSFORMING SUBSTATION 806-1NTECHNICAL DESCRIPTION

H0450.PE.RL.E.5001

1. GENERAL DATA FOR THE DESIGN.............................................................................................................3

1.1. REFERENCES TO TECHNICAL STANDARDS, LAW AND RULES...........................................................3

1.2. ELECTRICAL SUPPLY CHARACTERISTICS...........................................................................................9

1.3. CLASSIFICATION OF PLANTS DISTRIBUTION....................................................................................9

1.4. POWER GENERATORS DIMENSIONING.........................................................................................10

1.5. INSERTION CURRENT CALCULATION OF TRANSFORMER..............................................................10

1.6. POWER FACTOR CORRECTION.......................................................................................................10

1.7. ELECTROMAGNETIC FIELD EFFECT................................................................................................11

2. DESCRIPTION AND CONSISTENCY OF ELECTRICAL SYSTEMS...................................................................13

2.1. MEDIUM VOLTAGE SUPPLY...........................................................................................................13

2.2. MV-LV TRANSFORMING SUBSATATION 806-1N............................................................................13

2.3. THE ELECTRICAL POWER NETWORK DISTRIBUTION IN MEDIUM VOLTAGE..................................14

2.4. MV-LV TRANSFORMING SUBSTATION...........................................................................................14

2.4.1. MEDIUM VOLTAGE SWITCHBOARD..........................................................................................15

2.4.2. TRANSFORMERS........................................................................................................................16

2.4.3. MAIN LOW VOLTAGE SWITCHBOARD.......................................................................................16

2.4.4. SHORT CIRCUIT CURRENT Ic CALCULATION..............................................................................20

2.4.5. AUTOMATIC AND FIXED POWER FACTOR CORRECTION...........................................................21

2.4.6. SWITCHING ORDINARY SYSTEM – EMERGENCY SYSTEM..........................................................21

2.4.7. AUXILIARY SERVICES SWITCHBOARD........................................................................................21

2.5. ELECTRICAL POWER GENERATORS................................................................................................23

2.5.1. DIESEL GENERATOR...................................................................................................................23

2.5.2. UNINTERRUPTIBLE POWER SUPPLIES.......................................................................................23

2.6. MAIN DISTRIBUTION CIRCUIT........................................................................................................27

2.7. EARTHING ARRANGEMENT...........................................................................................................27


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1. GENERAL DATA FOR THE DESIGN

The following report shows the general design data, descriptions and consistency of Transforming Subastation 806-1N relating to the building complex in the city of Belgrade.

Plants to which is done reference in the present report and in the enclosed elaborate are listed of following:

TEXTUAL DOCUMENTATION

H0450-PE-RL-E-5001 Technical description

H0450-PE-RL-E-5002 Technical specification

H0450-PE-RL-E-5003 Calculation report

H0450-PE-RL-E-5004 Bill of quantities

GRAPHIC DOCUMENTATION

H0450-PE-DS-E-5001 Equipment disposition: transformer substations and Mains switchboard low voltage 806-1N

H0450-PE-DS-E-5002 Single-line diagram of transformer substations and Mains switchboard low voltage 806-1N

H0450-PE-DS-E-5003 Funzional diagrams transformer substations 806-1N

1.1. REFERENCES TO TECHNICAL STANDARDS, LAW AND RULES

The plants will be realized by satisfying the laws of the Serbian State and the European Standard IEC “International Electrotechnical Commission” and CENELEC "European Committee for Electrotechnical Standardization".

The characteristics of the plants themselves, and their components, must conform to laws and regulations in force at the date of the contract and in particular must comply with:

Bylaw on contents and way of making of the technical documentation for building construction structures (Official Gazette of Republic of Serbia no 47/03 and 34/06)

Bylaw on Technical Regulations for Protection of Electrical Power Facilities and Devices from Fire, the Official Gazette SRY N0 74/90.


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Bylaw on Technical Regulations for the Protection of Structures from Atmospheric Discharge, the Official Gazette SRY N0 11/96.

Bylaw on Technical Regulations for Electrical Installations for Low Voltage, the Official Gazette SRY N0 53/88, 54/88 and the Official Gazette SRY 28/95.

On technical standards for the fire protection of the high building (“official gazette sfrj”, no. 7/84)

Electrical plants will respect Serbian regulations. In addition when not in conflict, they will be designed according to International IEC and European CENELEC Norms. Italian CEI are referred to those standards because are issued based on IEC and CENELEC/EN.The following chart lists the IEC, European norms and their Serbian equivalents:


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SERBIAN SERBIAN norm title INTERNATIONAL IEC / ISO IEC Norm title

IEC 60332-2-2 Tests on Electric cables under fire conditions.

IEC 60332-3 Tests on Electric cables under fire conditions.

IEC 60364 Low-voltage electrical installations

IEC 60364-4-41/42/43/44

IEC 60364-4-41 IEC 60364-4-42 IEC 60364-4-43 IEC 60364-4-44 Low-voltage electrical installations

IEC 60364-5-51 IEC 60364-5-51 Low-voltage electrical installations

IEC 60364-551/52/53/54/55

IEC 60364-5-51 IEC 60364-5-52 IEC 60364-5-53 IEC 60364-5-54 IEC 60364-5-55 Low-voltage electrical installations

IEC 60364-6 Low-voltage electrical installations

-- IEC 60364-7-701 IEC 60364-7-702 IEC 603647-703 IEC 60364-7-704 IEC 60364-7-705 IEC 60364-7-706 N.B2.777 N.B2.778 IEC 60364-7710 IEC 60364-7-712 IEC 60364-7-717

IEC 60364-7-701 IEC 60364-7-702 IEC 60364-7-703 IEC 60364-7-704 IEC 60364-7-705 IEC 60364-7-706 IEC 60364-7-707 IEC 60364-7-708 IEC 60364-7-710 IEC 60364-7-711 IEC 60364-7-712 IEC 60364-7-714 IEC 60364-7-715 IEC 60364-7-717 IEC 60364-4-482 Low-voltage electrical installations

N.K5.503

Low-voltage switchgear controlgear assemblies Requirements for type-tested and partially type-tested assemblies IEC 60439-1 Low-voltage switchgear and controlgear assemblies - Part 1: General rules

IEC 60439-1/A1 Low-voltage switchgear and controlgear assemblies - Part 1: General rules

N.K5.503/2

Low-voltage switchgear and controlgear assemblies Particular requirements for busbar trunking system (busways) IEC 60439-2

Low-voltage switchgear and controlgear assemblies - Part 2: Particular requirements for busbar trunking systems (busways)

IEC 60439-2/A1Amendment 1 -Low-voltage switchgear and controlgear assemblies - Part 2: Particular requirements for busbar trunking systems (busways)

N.K5.503/3

Low-voltage switchgear and controlgear assemblies - Particular requirements for low-voltage switchgear and controlgear assemblies intended to be instaled in places where unskilled persons have access for their use - Distribution boards IEC 60439-3

Low-voltage switchgear and controlgear assemblies - Part 3: Particular requirements for lowvoltage switchgear and controlgear assemblies intended to be installed in places where unskilled persons have access for their use – Distribution boards

IEC 60439-3/A2

Amendment 1 -Low-voltage switchgear and controlgear assemblies. Part 3: Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in places where unskilled persons have access for their use - Distribution boar

IEC 60446Basic and safety principles for manmachine interface, marking and identification - Identification of conductors by colours or alphanumerics

IEC 60502Extruded solid dielectric insulated power cables for rated voltage 1 kV to 30 kV.

idt: IEC 529 eqv: EN 60529Degrees of protection provided by enclosures (IP code) IEC 60529 Degrees of protection provided by enclosures (IP Code)

IEC 60669-1Switches for household and similar fixed-electrical installations - Part 1: General requirements

IEC 60724Short-circuit temperature limits of electric cables with rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV)

N.C0.085

Test on gases evolved during combustion of electric cables Determination of the amount of halogen acid gas evolved during the combustion of polymeric materials taken from cables IEC 60754

Test on gases evolved during combustion of materials from cables-Determination of the amount of halogen acid gas

N.A9.005 Code of designations of colours IEC 60757 Code for designation of colours


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IEC 811-1-1:SRPS N.C0.031 IEC 811-1-1:SRPS N.C0.030 IEC 811-1-3:SRPS N.C0.054 IEC 811-2-1:SRPS N.C0.074 IEC 811-2-1:SRPS N.C0.060 IEC 811-2-1:SRPS N.C0.076

Testing of insulated conductors and cable : General testing conditions - Checking of construction - Shrinking -Resistance to oil -Degree of cross-linking - Ozone resistance IEC 60811

Common test methods for insulating and sheathing materials of electric cables and optical cables

N.K5.505

A method of temperature-rise assessment by extrapolation for partially type-tested assemblies (PTTA) of lowvoltage switchgear and controlgear IEC 60890

A method of temperature-rise assessment by extrapolation for partially type-tested assemblies (PTTA) of low-voltage switchgear and controlgear

IEC 60909

Short-circuit current calculation in three-phase a.c. systems Part 1: Factors for the calculation of shortcircuit currents in three-phase a.c. systems according to IEC 60909 IEC 60909-0

Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents

IEC 1000-1-1 IEC 61000Electromagnetic compatibility (EMC) - Part 1: General - Section 1: Application and interpretation of fundamental definitions and terms

EN 61008-2-1

Residual current operated circuitbreakers without integral overcurrent protection for household and similar uses (RCCB's) -Part 2-1: Applicability of the general rules to RCCB's functionally independent of line voltage IEC 61008

Residual current operated circuitbreakers without integral overcurrent protection for household and similar uses (RCCBs)-General rules.

IEC 61034-1Measurement of smoke density of cables burning under defined conditions - Part 1: Test apparatus

IEC 61034-2Measurement of smoke density of cables burning under defined conditions - Part 2: Test procedure and requirements

IEC 61082-1 Preparation of documents used in electrotechnology - Part 1: Rules


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IEC 61117A method for assessing the shortcircuit withstand strength of partially type-tested assemblies (PTTA)

IEC 61140Protection against electric shock-Common aspects for installation and equipment

IEC 61558-2-15

Safety of power transformers, power supply units and similar - Part 2-15: Particular requirements for isolating transformers for the supply of medical Locations

N.H8.010 IEC 62041Power transformers, power supply units, reactors and similar products -EMC requirements

IEC 76-2

IEC 76-2 Ec IEC CENELEC Technical committee 20 (Energy cables) Corrigendum 1 - Power transformers - Part 2: Temperature rise

IEC/TR 60755 General requirements for residual current operated protective devices

idt: IEC 1000-4-8 EN 61000-4-8

Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques Section 8: Power frequency magnetic field immunity test Basic EMC publication IEC/TR 61000-1-1

Electromagnetic compatibility (EMC) - Part 1: General - Section 1: Application and interpretation of fundamental definitions and terms

EN ISO 12100-1 ISO 12100-1Safety of machinery - Basic cancepts, general principles for design; Part.1 Basic terminology, methodology

EN ISO 12100-2 M.D1.556;557;570;572;5 73 ISO 12100-2

Safety of machinery - Basic cancepts, general principles for design; Part.2 Technical principles


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1.2. ELECTRICAL SUPPLY CHARACTERISTICSElectric power normal

The working electric power ordinary is delivery from the electricity company's network supplier in Medium Voltage and it has the following electrical characteristics:

Rated voltage: 10 kV three-phase

Frequency: 50 Hz

Short circuit current to the point of connection: 14,5 kA

Intervention time for earth leakage: Intervention time for earth leakage: 0.5sec for TS 110/10kV, 1sec for TS 35/10kV 1 sec

Earth fault current: 300 A

Electric power emergency

The electric power emergency o reserve is an automatic type, available in a long time to break, they generate the rated voltage of 400/230V - 50 Hz three-phase with neutral and power factor equal to cos = 0.8.

Electric outlet power security

The electric outlet power security is automatic, with characteristics of continuity, produced at the rated voltage of 400/230 V - 50 Hz three-phase with neutral cos = 0.8.

Electric safety lighting

The electric safety ligting is automatic, with characteristics of continuity, produced at the rated voltage of 400/230 V - 50 Hz three-phase with neutral cos = 0.8.

1.3. CLASSIFICATION OF PLANTS DISTRIBUTIONThe power ordinary distribution of network is realized through the installation of transforming electrical substation, property of the client, with a TN-S system of the Ist category in according to rules at the rated voltage by 400/230V three phase with neutral to 50 Hz.

The emergency (reserves) distribution power, is produced through a diesel generator; it has the electrical characteristics identical to those of ordinary power.

The outlet securety distribution is produced by UPS and is provided with a TN-S system, of the Ist category to the rules at the rated voltage by 400/230V-50Hz three phase and neutral.

The safety lighting distribution is produced by UPS and is provided with a TN-S system, of the Ist category to the rules at the rated voltage by 400/230V-50Hz three phase and neutral.

1.4. POWER GENERATORS DIMENSIONINGThe transformers dimensioning is carried out considering the summation of the contemporary average load plus a precaution and for future expansion coefficient of 30%.

The diesel generators dimensioning is carried out considering the summation of the contemporary average load plus a precautionary coefficient of 20%.

The uninterruptible power supplies dimensioning is carried out considering the summation of the contemporary average load plus a precautionary coefficient of 30%.

1.5. INSERTION CURRENT CALCULATION OF TRANSFORMERThe transformers installed are by 1600kVA and therefore the rated current in the primary transformer is equal to 92,5 A and the ki value (ratio between the peak insertion current and the rated efficacy current equal 10) it will find that the peak insertion current is equal:

In x ki = 92,5 x 10 x0,5= 462 A

The time constant of the isertion current Ti is equal 0,35 sec. According to graphs in the literature can be derived from the delay time of MV protection that meets the need to avoid the untimely intervention of the protections. The delay time tr can be estimated equal 0.65 sec.

1.6. POWER FACTOR CORRECTIONThe equipments with inductive load type characteristics that introduce of a voltage-current phase shift, will be individually compensated by a capacitor discharge resistor if they are used ferromagnetic, or have already done if you use high frequency ballasts.

For power factor correction circuits and power sockets, a section is expected in the main low voltage switchboared likely to do so, even in the presence of harmonics.

The sizing is done, considering the total load average contemporary circuits and power outlets, with an initial cosj1 of 0.8 due to a cosj2 = 0.9.

Therefore, since we have:

P A Q 2 2

P: Total apparent power of the load maen contemporaryA: Load active powerQ: Reactive power


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That suggests that the power system to be corrected is:

The value found is used to size the potential of the power factor correction switchboard.

It is also planned for the power factor of power transformers, a capacitor, sized according to the potential of these.

1.7. ELECTROMAGNETIC FIELD EFFECTThe placement of electrical substations should not cause problems due to electromagnetic field effects on people and electronic equipments, that must be respected as required by the Europen Directive on 29 aprile 2004 n40.

Under this Directive, the "action values" caretteristiche of the electromagnetic field and trigger the obligation to adopt one or more specific measures. Respect for these values will ensure compliance with the relevant "exposure limit values" that guarantee workers exposed to the harmful effects of electromagnetic fields.

From Table 2 of Annex B of the above-stated directive "action values" are obtained from the exposure limit values according to the rationale used by the International Commission on non-Ionizing Radiation Protection (ICNIRP) in its guidelines on the limitation of 'exposure to ionizing radiation (ICNIRP 7/99). From this table it appears that the limit value of B (magnetic induction) must be equal to:

The major source of electromagnetic pollution of a MV/LV transformers is caused by, evaluated according to the formula:

where:B = magnetic induction action values [T]I = current through the wires [A]S = distance between the phases [m]D = distance for which you want to calculate the value of the magnetic induction [m]

If we have:B = 500 TI = 1850A (transformer current by 1600kVA with contemporary 0.8)S = 0,162 m


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D = Dpa (m)

than:

However, this methodology is cautionary, because measurements of plant types, showed values much lower than those assessed by the calculation. In order to further reduce the value of magnetic induction, we can take the following steps do not assessed in the method of calculation: • box containing the transformer, galvanized steel, which reduces by at least 50% of the value. • use of metal pipes with cover • laying of cables in trefoil


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2. DESCRIPTION AND CONSISTENCY OF ELECTRICAL SYSTEMS

2.1. MEDIUM VOLTAGE SUPPLYThe MV-LV transformer substation 806-1N is medium voltage supplied by medium voltage distribution station in the hospital through a link on the type of medium voltage cable 3x (1x95) XHE49A 6/10kV inside sendzimir galvanizing steel cable trys with cover, fire resistant, one for each transformer.

The connection between the main station and the other booths will be implemented through two independent lines of supply with the "dual radial".

Inside the station the cables establish a bridgehead to the medium voltage units consist of the cable riser and to the disconnector with 125A fuses.

2.2. MV-LV TRANSFORMING SUBSATATION 806-1NThe MV-LV transforming substations will be installed in special dedicated rooms, for the distribution of electricity in Low Voltage.This substation will be located near to the MV Switching station, it is on 115 level. In this room will be installed the main low voltage switchboard, “Power Center” type for the protection of outgoing lines.The new 806-1N transforming substation will supply diagnostic radiology wards and operating theatres.The 806-1N transforming substation will be consisted by two 1600 kVA transformers.Each transformer will be able to supply the half electrical load.The two transformers are connected together, low voltage side, with tie circuit breaker and in the event of failure or maintenance the plant can be supplied by a single transformer.In addition, there will be a framework of automatic power factor correction.The maximum simultaneous electrical power estimated for this substation is about 1530 kW.

Section A will supply:

Serial number of transformers Substation

Maximum power consumption in normal

electricity supplyPmax1

(kW)

Maximum power consumption in emergency electricity supply

side BPmax2

(kW)T1 (1600kVA) B-806-1N 775 1525


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Section B will supply:

Serial number of transformers Substation

Maximum power consumption in normal

electricity supplyPmax1

(kW)

Maximum power consumption in emergency electricity supply

side APmax2 (kW)

T2 (1600kVA) B-806-1N 750 1525

2.3. THE ELECTRICAL POWER NETWORK DISTRIBUTION IN MEDIUM VOLTAGEThe notable power demand and the wide distribution of the electric plants by realize requires a structure of MV net of type to radial type with MV/LV transforming stations distributed near the various barycentres of loads, in accordance with a criteria that consents in the future the easy expansion of the net same for new requirements and possible amplifications of the complex.

The connection between the main station and the other booths will be implemented through two independent lines of supply with the "dual radial", in type MV cable XHE 49-A 6/10 kV by 3x(1x95) installed inside sendzimir galvanizing steel cable trys with cover, fire resistant.

However concerns to regulatory compliance that to avoid the untimely intervention of protections installed of the supplier delivery entity in the event of insertion by network supply, after a temporary interruption of the electrical power, it will be made means of the supervision system, the insertion of these transformers in a sequence that will be coordinated with the protection it would install the framework on your switchboard.

The supervision system will also delay the shutdown of the diesel generators until they will be taking back the full output from the network. All MV/LV transformers installed in the substations are protected by motorized circuit-breakers. These switches are controlled by supervisory system to automate procedures for energizing the various electrical machines, in order to avoid the protections of the entity provider intervene.

In particular, the system detects the absence of voltage on the network and/or individual bars of each part of MV it will open the protections of the various transformers are not longer supplies and the return of the voltage at intervals of time it will proceed to the resealing switches of each transformers.

2.4. MV-LV TRANSFORMING SUBSTATIONIn special place, adjacent to that of delivery room, is set a substation for transformation and distribution of the electrical power.

All walls the substation will have characteristic REI 120.


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The cooling of the local is gotten by using forced ventilation with outdoor air in accordance with the requirements of rule. The fans should be controlled by thermostats placed in such positions to detect the temperature at which the subject equipment local. On the walls opposite to those of installing fans will be charged for entering the outside air openings.

In the MV-LV transforming substation they are installed the Medium voltage switchboard, the transformers, the main switchboard low voltage, the power factor correction switchboard and all accessory apparatuses and of fit completion to realize the plant, coincident with the regulations and current legislations.

All substation plants as well the star center of the transformers, they are connected to the earth arrangement plant.

The plant will be endowed of the emergency push-button, installed to the outside of the room, it capable of removing tension to the whole electrical system.

2.4.1. MEDIUM VOLTAGE SWITCHBOARD

The MV switchboard is of the prefabricated protected type to normalized compartments, encloser, to simple system of copper busbar with rated insulation voltage until 12 kV and a level short circuit power until 500 MVA, constituted by:- n.2 cable riser- n.2 incoming and protection unit of the line by MV switchgear disconnector with fuse 125A;- n.2 transformer box MV units.

The duration of the short circuit current capability provided it must be equal to not less than 1 sec, to satisfy the requirements of present and future selectivity of the protection system coordinated with all loads upstream and downstream.

For this purpose will be taken opportune agreements with the distribution company of the electrical power.

The switchboard must it respect the new standard IEC 62271-200 MV actuator.

A protection “active” must be expected able to discriminate the breakdowns inside of each swintchboards from that to the outside of just the same and to effect then, provided that spoil inside, a protection in order to contain the sudden damages by the adjacent compartments and is forced in remove tension to the only part directly involved by the breakdown the same.

The switchboard will be supplied of non influenceable sensors from the EMC, that must activate a reduction of the duration of permanence of the arc in the switchboard, commanding directly the opening of circuit breakers that supply the breakdown.


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2.4.2. TRANSFORMERS

In the 806-1N transforming substation are installed two transformers by 1600kVA. Each transformer will be able to supply the half electrical load. The two transformers are connected together, low voltage side, with coupling circuit-breaker and in the event of failure or maintenance the plant can be supplied by a single transformer.

The transformers provide to the secondary winding terminal a no-load voltage of 400/230 V three phase with neutral 50 Hz.

The transformers are of the dry type, a natural cooling and wrapping Dyn 11.

They are equipped with temperature control units and termosonde, alarm contacts and the opening switches and capacitor banks for power factor correction.

The transformers are connected to MSLV through copper bars painted with tie circuit breaker plant and interlock mechanical key, for the insertion of two transformers connected in parallel, at the time.

The power of each transformer is: 1600 kVA.

The rated voltage on the load terminals of secondary winding of the transformer will be set equal to 420V to compensate for the line voltage drop (LVD) vacuum dependents.

2.4.3. MAIN LOW VOLTAGE SWITCHBOARD

The main low voltage switchboard is of the Power Center type, to total segregation of the equipment, (Form 3 IEC 60439-1), with all the drawout or plug-in circuit breaker, motorized type, for the protection and the control of the switchboard and of supply lines to the distribution switchboard, composed of the ordinary section , emergency section, safety section and securety section.

The MSLV supply the following switchboards:


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GRO 806-1NTRANSFORMER T1Level +127Ambulatory Ward

RO.AHU-6 N 400 50 0.8 90 PLUG-IN 4x160A 100 1000 50 Adjustable E 10 0,22 (4x35) NHXHX-O+(1x25) NHXHX-J

Level +127Ambulatory Ward

RO.02-8 N 400 61 0.8 98 PLUG-IN 4x160A 80 800 50 Adjustable E 190 2,68 (4x70) NHXHX-O+(1x35) NHXHX-J

Level 115Rx Ward

RO.I1-1 N 400 95 0.8 152 PLUG-IN 4x160A 100 1000 50 Adjustable E 20 0,44 (4x70) NHXHX-O+(1x35) NHXHX-J

Level 115MRI Ward


Level 115Ambukatory


Level 127ANGIOGRAF+Y

RO.AN-31 N 400 120 0.8 216 PLUG-IN 4x250A 250 2500 50 Adjustable E 30 0,55 (4x120) NHXHX-O+(1x70) NHXHX-J

Level 127ANGIOGRAFY


Level 127ANGIOGRAFY


Level 127ANGIOGRAFY


Level 127ANGIOGRAFY


Level 127ANGIOGRAFY


Level 127ANGIOGRAFY

RO,AN-37 N 400 120 0.8 216 PLUG-IN 4x250A 250 2500 50 Adjustable E 90 1,66 (4x120) NHXHX-O+(1x70) NHXHX-J

Level 115PACS

RO.I1-10 E 400 96 0.8 153 PLUG-IN 4x160A 160 1600 50 Adjustable E 30 0,41 (4x120) NHXHX-O+(1x70) NHXHX-J

Level 127ANGIOGRAPHY

RO.02-1 E 400 32 0.8 51 PLUG-IN 4x160A 80 800 50 Adjustable E 90 1,25 (4x35) NHXHX-O+(1x25) NHXHX-J

Level 127Operating Theatre


Level 127UPS1 Operating Theatre

RO.02-1 (UPS1) E 400 96 0.8 173 PLUG-IN 4x160A 200 2000 50 Adjustable E 90 1,33 (4x120) NHXHX-O+(1x70) NHXHX-J

Level 127UPS2 Operating Theatre

RO.02-1 (UPS2) E 400 96 0.8 173 PLUG-IN 4x160A 200 2000 50 Adjustable E 35 0,52 (4x120) NHXHX-O+(1x70) NHXHX-J

Level 123Patient room






Level 115Substation

RO.SS-1 E 400 8 0.8 14 PLUG-IN 4x160A 32 320 50 Adjustable E 15 0,11 (5x16) NHXHX-J

TRANSFORMER T2Level 115Rx EQUIPMENT

RO.RX-I1-01 N 400 80 0.8 144,34 PLUG-IN 4x160A 160 1600 50 Adjustable E 70 1,21 (4x95) NHXHX-O +(1x50) NHXHX-J

Level 115Rx EQUIPMENT





















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Level 115MRI EQUIPMENT

RO.MR-I1-1 N 400 60 0.8 108,25 PLUG-IN 4x160A 160 1600 50 Adjustable E 120 1,51 (4x95) NHXHX-O +(1x50) NHXHX-J

Level 115MRI EQUIPMENT

RO.MR--I1-2 N 400 60 0.8 108,25 PLUG-IN 4x160A 160 1600 50 Adjustable E 125 1,57 (4x95) NHXHX-O +(1x50) NHXHX-J

Level 123Endoscopy ward


Level 119Ambulatory


Level 115UPS1 Substation

806-1N-UPS-SO E 400 180 0.9 289 PLUG-IN 4x400A 320 3200 50 Adjustable E 30 0,65 (4x185) NHXHX-O+(1x95) NHXHX-J

Level 115UPS2 Substation

806-1N-UPS-S E 400 96 0.8 173 PLUG-IN 4x160A 200 2000 50 Adjustable E 30 0,44 (4x120) NHXHX-O+(1x70) NHXHX-J


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It is anticipated, also in proximity to the MLVS, a protected switchboard type for the control, management, the breakdowns protection an earth fault and the all auxiliary circuits disconnected of control and command of substation, with the possibility to bring them to a remote system from superior order. This switchboard is supply by the UPS 10kVA – autonomy 15’

The cables are at low smoke zero halogen not retardant the fire installed in sendzimir galvanizing steel cable trys with cover or in PVC rigid heavy pipeline.

2.4.4. SHORT CIRCUIT CURRENT Ic CALCULATION

The value of the short circuit current of the MSLV is Icc=35,6 kA.

To calculate the short circuit current Icc of the main supply lines from the MSLV need consider the following parameters:U – Rated secondary voltage of the transformer (V)Ucc % - Short circuit voltage percent of the transformerP – Rated power of the transformer power (kVA)Pcc – Losses short circuit of the transformer (W)Pcc % - Losses short circuiting percent of the transformer (W)Zt - Impedance of the transformer (Ω)Rt - Resistance of the transformer (Ω)Xt - Reactance of the transformer

The values of the Icc are reported in the following table and have been drawn through the calculation of the following values:r - unitary resistance of the line ( Ω/km )x - unitary reactance of the line ( Ω/km )l - length of the line (m)Rc - resistance of the cable line (Ω)Xc - reactance of the cable line (Ω)

2.4.5. AUTOMATIC AND FIXED POWER FACTOR CORRECTION

In the main low voltage switchboard are installed two section for the automatic power factor correction in presence of harmonicas, for correction of the general power factor of the plant to a value not less than cos=0,9 for each by 400 kVAr

The power factor correction system is constituted essentially from:- Disconnecting switch locked door with protection fuses of equipment- Automatic control panel of the power factor- Capacitor banks for the power factor correction- Contactors for the automatic insertion of capacitors with resistances of unloads and inductances of lock of harmonicas.

It is anticipated a fixed power factor correction for each transformer, constituted by capacitor banks, of the potentiality corresponding to 40 kVAr.

2.4.6. SWITCHING ORDINARY SYSTEM – EMERGENCY SYSTEM

The switching ordinary system - emergency system is predicted on the main low voltage switchboard. One pair of motorized and interlock circuit breakers are used for chang-over switching.

The circuit breakers have got a minimun breaking capacity above the calculation prospective symmetrical short circuit current.

The circuit breakers are drawout motorized type, equipped with dialogue unity for the amount carried over of the condictions and commands to the supervision system.

The supply lines of the switchboards to service the utilities are derived from the main switchboard

The connections will be carried out by the use of lines in cable, for the smaller powers and busbar trunking for that greater one.

From the MSLV is supply directly also the group of pumping of the net of water fireproof pressurization.

The fireproof pressurization are supply through two lines (redundant) in cable not propagate fire and fire resistant according to IEC 20-45, with laying in dedicated packed into cases pipeline to pave and with degree of protection in proportion to when applied for the coexistent UNI 9490 and EN 12845 standards.

2.4.7. AUXILIARY SERVICES SWITCHBOARD

The auxiliary services switchboard for substation will be provided by modular equipment type.

The circuit breakers will be chosen for short circuit currents present on the busbar.


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The substation services are supply to the switchboard in object or elese:- the MV-LV sub-station for the air-condition;- general lighting system;- motive power (outlets groups);- uses feeding of command and control of the MSLV.

This switchboard will contain all command and control equipments for the lines that supply in direct current the switchboard uses.

In particular the switchboard will supply all auxiliary devices on the other switchboards (motorizations circuit-breakers, dialogue unit, relay, spy, etc.).

For all terminal uses is guaranteed the protection against indirect contact through a residual current operated circuit breaker.

The residual current operated circuit breaker provided have a sensitivity of 30mA, for all the derivated lines, while for the equipment installed on the switchboard are installed the adjustable residual current operated circuit breaker.

The circuit breakers choice has been such by respect, in according to the short circuit current, the selective intervention of protections (vertical selectivity).

The continuity of service is guaranteed by a static uninterruptible power supplies.


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2.5. ELECTRICAL POWER GENERATORS

2.5.1. DIESEL GENERATOR

The electrical emergency supply is carried out by a diesel generator to self-starting, installed in special place, adjacent to the transforming sub station, in agreement to the regulations and laws of rated power by 900 kVA.

The power of the generator is such by provide to the total load of the reserve conditions plant to a three phase voltage with neutral of 400/230V-50Hz.

The generator insertion to be away nominal voltage of system or to the lowering of it to 85%, it has effected within 15 sec. and the insertion and the restoration on the supply of net will happen in automatic way, by a switching ordinary system-emergency system set on the main switchboard.

The diesel generator is favored with a sound proof enclosure to inside or outside for the protection from the weather agents and for the noise demolition in the limits consented in agreement to the rules to values of about 65dBA.

The wiring system will be provided with a emergency general push button, installed to the outside of the room and connected to the main switchboard, it able to tension removing at the whole system.

2.5.2. UNINTERRUPTIBLE POWER SUPPLIES

The safety lighting and the securety outlet are carried out through two uninterruptible power supplies installed into substation, in agreement to the regulations and current legislations.

The UPS for the safety lighting is by 120 kVA with an autonomy of 1h

The UPS for the securety outlet is by 200 kVA with an autonomy of 15’

The electrical power of the array is such by provide to the whole load of the plant in safety conditions and they generate to the rated voltage of 400/230V-50Hz three-phase with neutral and power factor equal to cos =0.8.

The uninterruptible power supplies (UPS) has a double conversion technique with bypass of intelligent type. In normal mode of operation, the load is continuously supplied by the converter/inverter combination in a double conversion technique, a.c. - d.c. - d.c. - a.c.

When the a.c. input supply is out of UPS preset tolerances, the UPS enters stored energy mode of operation where the battery/inverter combination continues to support the load for the duration of the stored energy time or until the a.c. input returns within UPS design tolerances, whichever is the sooner.


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This type is often referred to as an «On-Line UPS» meaning the load is always supplied by the inverter irrespective of the condition of the a.c. input supply.

UPS to double conversion and bypass

The static system of continuity with reference to the EN 62040-3 standard that defines the UPS classification on their performances, it has the following "code of classification: VFI-SSES-111”

where:(output Voltage and Frequency Independant from mains supply): where the UPS output is independent of supply (mains) voltage variations and frequency variations are controlled within IEC 61000-2-2 limits. When designed this way, this type can function as a frequency converter.1 VFI: (Output Voltage Frequency Independent from mains supply) announces that the UPS exit is independent by variations of the supply normal tension and the frequency variations are checked within the limits prescribed by the IEC EN 61000 standard-2-2 (the standard defines the levels of compatibility for


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municipal troubles in low frequency on the public nets to low tension before the connection of a load). This type of UPS also can work as converter of frequency.2 SS: it defines the form of wave of entry and of exit during the normal operation and from battery that is sinusoidal (THD< 8 % )1 111: it defines the dynamic performance of the tension of gone out to variations of load in three different conditions:a) variation of operational formalities (normal and from battery),b) insertion to steps in normal formality and from battery,a) insertion not-linear to steps in normal formality and from battery.For each of these conditions the dynamic performance can vary among 1 (any interruption) and 3.

The system works through an inverter to IGBT based on microprocessor and with the technology of the vectorial control. It is possible to improve the performances of the inverter. The reliability of the system has improved by a static electronic independent bypass.UPS furnishes an AC supply of high-quality to the electronic apparatuses and present the following advantages:• improvement in the quality of the supply• elevated attenuation of RFI troubles• total compatibility with all loads• protection from the interruptions supply• total management of the battery.

UPS is able to automatically furnish reliable suuply within the pre-established limits and without break, provided that spoil or net lack. The duration of the auxiliary supply, that as to say the autonomy in the case of spoil to the net, it will be guaranteed by the batteries by 1h to full load.

The supply continuity to the load is mostly guaranteed by the bypass across an automatic changer provided that:a) Breakdown of the UPS;b) Conversant with cue or conversant with short circuit;c) Overload;d) Maintenance.

The UPS is constituted by the following principal components:• Rectifier/battery/charger electronic circuit breaker• Inverter to IGBT ( bipolar transistor to isolated gate )• Digital computer of signal (DSP)• Static changer and second-string net• Interrupter of manual bypass• Special battery closetsThe UPS operation and control use a controlled logic by microprocessor. An illuminated display to liquid crystals (LCD), with forty characters, shows indications, measures and alarm, besides the autonomy of the battery.

The manual operations to start, to turn off, to manually transfer the load on the bypass and return from the bypass, they are clearly explained on display through routine operaivita wizard.


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The UPS is equiped with the control device, tools and indicators necessary for the monitoring the state and the performances of the system and to adopt the appropriate measures. Furthermore, the interfaces are available that consent to extend the monitoring and the control also in remote.

The place where is anticipated the installation of this system will be favored with a plant of autonomous air-conditioning, adequately measured and redounded.


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2.6. MAIN DISTRIBUTION CIRCUITThe electricity distribution is of radial type, divided into main distribution, distribution switchboards and lighting distribution and outlet socket distribution.The main distribution includes the connections and wiring between the general framework of main low voltage switchboards and secondary distribution switchboards in the various areas. Each functional area has its own electrical switchboard.Generally the connection between the main low voltage switchboard and the secondary switchboards will be sized in a pattern of type "simple radial" and able to bear, each, the total load, in order to address the disruption of a line.The supply of the operating theatres, intensive care wards and emergency, will be sized in a pattern of “dual radial”.Lines feeding the users circuits, departing from the distribution switchboard will be protected by circuit breakers differential sensitivity of 30 mA or undertaken to supply electrical medical equipment as required by the IEC specification.

2.7. EARTHING ARRANGEMENTThe plant will be made in compliance with the rules. Around the perimeter of the substation to protect it set up a network of dispersion ring. In this network will be connected through one or more conductors to the ground, the ground node of the electrical substation.


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H0450-PE-RL-E-5001-00

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