01. Electrical Tech Spec

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ORIENTAL SEA VILLAS AND HOTEL

RESORT

TECHNICAL SPECIFICATION -

ELECTRICAL SERVICES

4 August 2016 Revision: 02 Reference: 248779

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CHỈ DẪN KỸ THUẬT - HỆ THỐNG ĐIỆN

KHU BIỆT THỰ VÀ KHÁCH SẠN BIỂN ĐÔNG PHƯƠNG

ĐỊA ĐIỂM : ĐƯỜNG TRƯỜNG SA – PHƯỜNG HÒA HẢI – QUẬN NGŨ HÀNH SƠN – TP. ĐÀ NẴNG – VIỆT NAM

CƠ QUAN PHÊ DUYỆT Ngày tháng năm

CHỦ ĐẦU TƯ

Công ty TNHH Biệt thự và Khách Sạn Biển Đông Phương

Đường Trường Sa – Phường Hòa Hải – Quận Ngũ Hành Sơn – TP. Đà Nẵng – Việt Nam

Ngày tháng năm Tổng Giám Đốc

ĐƠN VỊ TƯ VẤN CƠ ĐIỆN

Công ty TNHH AURECON Việt Nam

P.1304 Tòa Nhà Centec, 72-74 NTMK, Quận 3, TP. Hồ Chí Minh

Ngày 04 tháng 08 năm 2016 Tổng Giám Đốc

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Document control record

Document prepared by:

Aurecon (Vietnam) Co Ltd

Suite 1304 Centec Tower 72-74 Nguyen Thi Minh Khai District 3 Ho Chi Minh City Vietnam T F E W +84 8 3823 9994 +84 8 3824 6880 [email protected] aurecongroup.com

A person using Aurecon documents or data accepts the risk of:

Using the documents or data in electronic form without requesting and checking them for accuracy against the original hard copy version.

Using the documents or data for any purpose not agreed to in writing by Aurecon.

Document control

Report title TECHNICAL SPECIFICATION - ELECTRICAL SERVICES

Document ID Project number 248779

File path P:\248779 Oriental Sea Villa & Hotel Resort\3.Project

Delivery\Working\MEP\Specifications\01. Elec\01. 248779-Oriental Sea Villa & Hotel Resort-Elec Spec. (EN) Rev.02.docx

Client ORIENTAL SEA VILLAS AND

HOTEL RESORT Co.Ltd Client contact

Rev Date Revision details/status Prepared

by

Author Verifier Approver

01 30 June 2016 Issued for Detail Design PD PD TT TB

02 4 August 2016 Issued for Detail Design PD PD TT TB

Current revision 02

Approval

Author signature Approver signature

Name Phuc Do Name Tuyen Bui

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14.1 General 99 14.2 General Requirements 99 14.3 System Parameters 100 14.4 Components 100 14.5 Safety 103 14.6 Equipment Operation 103 14.7 Quality 104 14.8 Assemblies 104 14.9 Proprietary Assemblies 104 14.10Busbars 104 14.11Main Switches 105 14.12Circuit Breakers 105 14.13Internal Wiring 105 14.14Measurement Accessories 105 14.15Control Gear 105

14.16Control Gear Accessories 105

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14.19Marking 105

14.20Completion 105

15 DIESEL GENERATOR 106

15.1 General 106

15.2 Quality 106

15.3 Internal Combustion Engine 107

15.4 Alternator 109

15.5 Operation 110

15.6 Control Panels 111

15.7 Batteries and Chargers 112

15.8 Starting 113 15.9 Installation 114 15.10Marking 116 15.11Completion 117 16 UPS 120 16.1 General 120 16.2 Quality 121 16.3 Components 123

16.4 Control and Monitoring 125

16.5 Batteries 126

16.6 Installation 127

16.7 Completion 127

17 PUBLIC ADDRESS SYSTEM 129

17.1 General Requirements 129

17.2 Equipment 129

17.3 Conduit and wiring 132

18 BUILDING MANAGEMENT SYSTEM (BMS) 133

18.1 System Objectives 133

18.2 General 133

18.3 System 134

18.4 Field Controllers 135

18.5 Data Monitoring and Logging 136

18.6 Internal Power Backup 137

18.7 System Communications 137

18.8 Control Circuits 137

18.9 Sensors 137

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19 PAINTING AND FINISHING 140

19.1 General 140

19.2 Colour Code 140

20 TESTING AND COMMISSIONING 141

20.1 General 141

20.2 Test Instruments 141

20.3 Test Report Terms 142

20.4 Commissioning 142

21 SERVICE AND MAINTENANCE 143

21.1 Scope 143

21.2 Service 143

21.3 Service Reports 143

21.4 Maintenance Schedules 143

22 OPERATING AND MAINTENANCE MANUALS 145

22.1 General 145

22.2 Manual Contents 145

22.3 As Installed Drawings 146

22.4 Principal Instructions 146

Tables

Table 1 Characteristics of obstruction lights 6

Table 2 Transformer general parameters 18

Table 3 Access control & intruder detection facilities 27

Table 4 Cable code & standard 31

Table 5 LV switchboard code & standard 49

Table 6 UPS technical parameters 120

Table 7 UPS overload capacity 122

Table 8 Colour code 140

Appendices

Appendix A

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1 SCOPE OF WORK

1.1 Project

Description

The Oriental Sea Villas and Hotel Resort is luxury resorts including of luxury villas, Reception building and 250 keys Sheraton hotel. The “Project” will locate at Hoa Hai Ward, Ngu Hanh Son District, Danang City, Vietnam.

1.2 Services

Description

The services cover under this specification is for the supply, installation, testing & commissioning and maintenance during defect liability period of Electrical Systems including: Power Substation, Power

Distribution, BOH Lighting, Lightning Protection, Earthing, Public Address, Mobile Booster and BMS and

others specified on drawings.

1.3 Definition Of Terms

The following definitions apply to the terminology used in this specification and associated drawings.

Owner/Principal: ORIENTAL SEA VILLAS AND HOTELS CO., LTD

Architect Consultant: DPA

C&S Engineers: VNCC

M&E Engineers: AURECON VIETNAM

Lighting Engineers: LIGHTBOX, SINGAPORE

Acoustics, AV & IT Engineers: IHD LTD HONG KONG

Security Engineers: STET, SINGAPORE

Fire Life Safety: SERECA CONSULTING PTE LTD, S’PORE

Local Fire Safety: VIETSAFE

Spa Design: ILC LTD, HONG KONG

Kitchen Consultant: FSCS, SINGAPORE

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1.4 Extent

Of

Work

This specification, unless specifically stated otherwise, calls for the provision of systems complete in every respect, fit and ready for continuous, safe, efficient operation. The Sub Contractor shall therefore supply, deliver, install, test, commission and set to work the systems and they shall be complete with all necessary ancillary and minor items, whether expressly indicated on the drawings or specification or not.

i) Supply and installation of Power Sub-Station, including MVSG 24kV RMU, Transformer 22(15)kV/0,4kV 50Hz 3P 4W and all relative connections

ii) Supply and installation of Main LV Switchboard (MSB) and All Floor Distribution Boards (LDB) as indicated in drawings of Electrical Services

iii) Supply and installation of Services Switch Boards (MSSB, FSSB, HSSB, LSSB) where indicated in drawings of Electrical Services

iv) Supply and installation of Consumer Mains, Sub-Mains to all Switchboards including Services Switchboards (MSSB, FSSB, HSSB, LSSB) and to isolation switches for Supply / Exhaust Fans and FCU etc. as indicated in MVAC drawings

v) Supply and installation of all Light Fittings, Lamps, Cabling, Cable Tray, Trunkings, Conduits, and associated accessories as detailed on the drawings and described herein

vi) Supply and installation of Exit and Emergency Light Fittings

vii) Supply and installation of all Power Outlets and/or connections to equipment, cabling, cable trays, trunkings, conduits and associated accessories as detailed on the drawings and described herein viii) Supply and installation of Lightning Protection System

ix) Supply and installation of Public Address System (PA)

x) Co-ordination with the Main Contractor and other Trade Contractors

xi) All associated building work unless specifically nominated elsewhere in this specification. The work shall include Over-flashing of all electrical services roof penetrations, making good, fire stopping and painting

xii) Testing, commissioning, maintenance and defects liability for the completed work. This shall include:



Defects liability for 52 weeks from date of Practical Completion.



Maintenance during the defects liability period.

xiii) Provision of 4 sets of Operating and Maintenance Manuals, including as-installed drawings in AutoCAD format and all testing & commissioning data.

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2 CO-ORDINATION AND WORK BY MAIN

CONTRACTOR

2.1 Co-Ordination

Co-ordinate and furnish all necessary information as required to the Main Contractor and other Contractors so that works can be carried out without undue delay to the construction programme. Any additional work occasioned by lack of co-operation with the Main Contractor or any other Contractors will not be considered as a variation to the Contract or as grounds for extension of time. The Main Contractor will be responsible for checking all Contract penetration drawings and for negotiating with the various Contractor/Contractors for amendment of penetration requirements as necessary.

2.2 Works By Main Contractor



The site to be fenced and space made available for sheds.



Toilets and temporary water



Assistance setting out



Keeping site clean, removal of rubbish



Excavation and back fill for services between buildings



Provision of holes as required for the entrance, installation and access of equipment and conduits



Concrete trenches with access pits for cables.



Casting-in of holding down bolts to templates provided.



Waterproofing of plant room floor.



Acoustically separate plant room structure. Ensure cavities are cleaned out.



Building in of pipe sleeves.



Drilling through concrete slabs or walls.



Bund for above-ground oil tanks.



Fire rated wall for electrical room



Access to roof for maintenance.



Fixing of guy anchors.



Ventilation louver to Plant rooms.



Access panels in demountable ceiling to high maintenance items.



Roof penetrations and under flashing (the Main Contractor to provide the under-flashing, Contractor

to provide the over-flashing).

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3 SPECIFIC PROJECT REQUIREMENTS

3.1 Design

Requirements

3.1.1 Electricity Supply

The electricity supply will be 380V/50Hz/3P and 220V/50Hz/1P and Neutral from the Power Substation. All equipment shall be suitable for this supply.

3.1.2 Consumer Mains & Metering

Consumer mains shall be installed from the Power Transformer to the LV-MSB to be located on the electrical room.

Meters will be installed for each of the jurisdictions as indicated on the drawings. Arrange with the Supply Authority for metering to be provided as shown and allow all necessary meter panels to their requirements.

3.1.3 Main Switchboard

Supply and install in the position as shown on the drawings, one new main switchboard containing all equipment as shown on the single line diagram and as specified herein. The switchboard shall be of the indoor, metal enclosure, air break type, suitable for operation in the switch-room shown on the drawings. The switchboard shall be capable of withstanding the thermal and magnetic stresses set up by a fault level as shown on the drawings.

The switchboard shall be of free standing, top entry, dead front, totally enclosed, unitised, dustproof, back connected with lift off panels and constructed to conform to the requirements of IEC 60439 Form 3B. All outgoing connecting terminals shall be fully sleeved when sub-mains are terminated.

3.1.4 Distribution Boards

Distribution boards shall be as detailed on the drawings. Provide ducting where necessary to conceal sub-circuit cables where they leave the distribution boards.

3.1.5 Underground Cables: Refer Section 6.5. 3.1.6 Sub-mains

Sub-mains shall be as nominated on the drawings. The Sub Contractor, prior to ordering cables, shall examine the architectural and structural details and determine the most appropriate sub-main route. All sub-mains shall be run on cable tray. All sub-main cables shall be spaced on cable tray so as to avoid de-rating in accordance with BS 7671 Appendix 4.

3.1.7 Power Outlets and Isolators

Supply and install power outlets and Isolators as shown on the drawings

3.1.8 Lighting Fittings

BOH Light fittings shall be as nominated and as scheduled and approved by M&E Consultant.

Localised on/off controls shall be provided to all areas to enable manual switching of lighting as shown on the drawings

Lights shall be supplied strictly in accordance with that specified. Set-out of lights in ceilings shall be performed in accordance with the architectural drawings.

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3.1.9 Exit and Emergency Lighting System

A system of self-contained EXIT and Emergency Lighting system shall be provided.

3.1.10 Lightning Protection

Supply and install a complete lightning protection system as detailed in later clauses of this specification. Refer to separate section for full description of system

The lightning protection system will be the Early Streamer Emission type to comply with NFC 17-102.



Lightning rod will be solid copper ensuring good corrosion resistance.



95mm2 bare copper shall be used as down conductor run in uPVC DN32. If the resistance more

than 10 ohms, the addition of earthing rods will be required.



Resistance of the lightning protection system will be less than 10 ohms in the peak dry season

of the year.



Cables connection and earthing rods will be cad welded to ensure permanent connection at

welded points in term of electrical and mechanical continuity.



Surge protection devices (SPD) will be installed at the main switchboard and at other points

throughout the system where considered prudent to do so – this may include where sensitive electronic devices are housed.

Refer to section 5.28 for detail.

3.1.11 Acoustics

Noise generated by electrical services into occupied spaces shall not cause the background noise level to increase by more than 1 dB(A) for typical use.

3.1.12 Electromagnetic Shielding

The whole electrical system shall be designed and installed in a manner that shall minimise electromagnetic field to adjacent work areas. Acceptable magnetic field limit shall be 10mG at working level height.

In situations where the magnetic field is more than 10mG, due to the installed electrical system, electromagnetic shielding in the form of ferromagnetic material shield shall be installed to decrease the field to the acceptable level.

3.1.13 Maintenance and Defects Liability

Fully maintain the total installation including all new works within the building for a period of 12 months, starting from date of practical completion as determined by the Project Manager/Consultant.

Include for all testing and logging of equipment as required by the relevant British Standards, Codes and Local Building Authorities.

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3.2

System controls and operation Description

The required minimum measurements to be provided shall be:



Consumption (kWh)



Voltage (V)



Current (A)



Peak Demand (kW)

Metering

Metering shall be provided at the Incoming supply as well as per indicated on drawings.

The Sub Contractor shall be responsible to co-ordinate all metering requirements with Local Power Company.

The Sub Contractor shall allow for all metering and signal cabling works by Local Power Company including associated charges.

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4 GENERAL

REQUIREMENTS

4.1 Site

Inspection

Inspect the site to familiarise yourselves with the conditions thereupon prior to submission of tender. Confirmation of site inspection shall be submitted with tender.

4.2 Statutory Requirements And Standards

British Standard & IEC current at the date of tendering and also reference Codes and Standards listed in the prefaces to those Standards and Codes are applicable in respect of all materials and workmanship except where in conflict with the provisions of these specifications.

Where British Standard do not exist the appropriate IEC or Local Code shall apply. Where this specification expressly requires standards higher than or different from those applicable under the relevant Standard or Code documents, this Specification shall be followed.

Advise all subsequent amendments to applicable codes as they come into force during the work and seek a direction regarding compliance for this project.

All work shall comply with the:



11TCN 19:2006 Electrical conduction system



11TCN 20:2006 Distribution & Transformer



11TCN 21:2006 Protection & automatic



TCVN 7447-5-51: 2004 Electrical equipment installation – General regulation



TCVN 7447-5-53,54:2005 Electrical equipment installation – Isolator & Control



TCXD 25:1991 Internal installation



TCXD 27:1991 Internal installation for residence & public buildings



TCVN 2622:1995 Fire protection for building



TCVN 6160:1996 Fire protection for high-rise building



BS 67 Specification for ceiling roses.



BS 88 Low voltage fuses. Supplementary requirements for fuses for use by

unskilled persons (fuses mainly for household and similar

application).



BS 196 Specification for protected-type and non-reversible plugs, socket

outlets, cable couplers and appliance couplers with earthing contacts for single-phase a.c. circuits up to 250 volts.



BS 476 Fire tests on building materials and structure



BS 546 Specification. Two-pole and earthing pin plugs, socket-outlets and

socket-outlet adaptors.



BS 646 Specifications for Cartridge fuse links (rated up to 5 amperes) for a.c.

and d.c. service.



BS 951 Specification for clamps for earthing and bonding purposes.



BS 1362 Specification for general purpose fuse links for domestic and similar

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

BS 1363 13A plugs, sockets-outlets, connection units and adaptors.



BS 1710 Specification for identification of pipelines and services.



BS 2754 Memorandum. Construction of electrical equipment for protection

against electric shock.



BS 3036 Specification. Semi-enclosed electric fuses (rating up to 100 amperes and

240 volts to earth).



BS 4293 Specification for residual current operated circuit-breakers.



BS 4568 Specification for steel conduit and fittings with metric threads of ISO form for

electrical installations.



BS 4573 Specification for 2-pin reversible plugs and shaver socket-outlets.



BS 4607 Non-metallic conduits and fitting for electrical installations.



BS 4727 Glossary of electrotechnical, power, telecommunications, electronics, lighting

and colour terms.



BS 50085 Cable trunking systems and cable ducting systems for electrical installations.



BS 5266 Emergency lighting.



BS 5467 Electric cables. Thermosetting insulated, armoured cables for voltages of

600/1000V and 1900/3300V



BS 5733 Specification for general requirements for electrical accessories.



BS 5839 Fire detection and alarm systems for buildings



BS 6004 Electric cables, PVC insulated, non-armoured cables for voltages up to and

including 450/750V, for electric power, lighting and internal wiring.



BS 61386 Conduit systems for cable management.



BS 6207 Mineral insulated cables with a rated voltage not exceeding 750V.



BS 6458 Fire hazard testing for electrotechnical products.



BS 6701 Code of practise for installation of apparatus intended for connection to

certain telecommunications systems.



BS 6724 Electric cables. Thermosetting insulated, armoured cables for voltages of

600/1000V and 1900/3300V, having low emission of smoke and corrosive gases when affected by fire.



BS 6972 Specification for general requirements for luminaire supporting couplers for

domestic, light industrial and commercial use.



BS 7071 Specification for portable residual current devices.



BS 7211 LSF insulated non armoured cables / wires



BS 7288 Specification for socket-outlets incorporating residual current devices

(SRCDs).



BS 7430 Code of practise for earthing.



BS 7454 Method for calculation of thermally permissible short-circuit currents taking

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

BS 7629 Electric cables. Specification for 300/500V fire-resistant electric cables having low emission of smoke and corrosive gases when affected by fire. Multicore cables



BS 7697 Nominal voltages for low voltage public electricity supply systems.



BS 7822 Insulation coordination for equipment within low voltage systems.



BS 7846 Electric cables, 600/1000V armoured fire-resistant electric cables having

thermosetting insulation and low emission of smoke and corrosive gases when affected by fire.



BS 7889 Electric cables. Thermosetting insulated, non-armoured cables with a voltage

of 600/1000V, for fixed installations.



BS 7895 Specification for bayonet lampholders with enhanced safety.



BS EN 50081 Electromagnetic compatibility. Generic emission standard.



BS EN 50082 Electromagnetic compatibility. Generic immunity standard.



BS EN 50085 Specification for cable trunking and ducting systems for electrical installations.



BS EN 50281 Electrical apparatus for use in the presence of combustible dust



BS EN 50310 Application of equipotential bonding and earthing in buildings with information

technology equipment.



BS EN 50525 Electric cables. Low voltage energy cables of rated voltage up to and

including 450/750V (Uo/U) cables for general applications.



BS EN 60079-14 Explosive atmosphere. Electrical installation design, selection and erection.



BS EN 62305 Protection against Lightning



BS EN 60269 Low voltage fuses.



BS EN 60309 Plugs, socket oultets and couplers for industrial purposes.



BS EN 60423 Conduits for cable management. Outside diameters of conduits for electrical

installations and threads for conduits and fittings.



BS EN 60439 Specification for low voltage switchgear and control gear assemblies.



BS EN 60598 Luminaires.



BS EN 60669 Switches for household and similar fixed electrical installations.



BS EN 60947 Specification for low voltage switchgear and control gear.



BS EN 60950 Specification for safety of information technology equipment including

electrical business equipment.



BS EN 61008 Residual current operated circuit-breakers without integral overcurrent

protection for household and similar uses. (RCCBs)



BS EN 61009 Residual current operated circuit-breakers with integral overcurrent protection

for household and similar uses. (RCBOs)



BS EN 61386 Conduit systems for cable management. General Requirements



BS EN ISO 1461 Hot dip galvanized coatings on fabricated iron and steel articles.

Specifications and test methods.

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

CIBSE LG7: 2005 Office Lighting



CIBSE LG12 Emergency Lighting Design Guidelines



CIBSE TM12:1986 Emergency Lighting



IEC 60227 Polyvinyl chloride insulated cables of rated voltages up to and including

450/750V.



IEC 60228 Conductors of insulated cables



IEC 60287 Electric cables. Calculation of current rating.



IEC 60331 Tests for electric cables under fire conditions – Circuit Integrity.



IEC 60332 Tests on electric and optical fibre cables under fire conditions.



IEC 60529 Classification of Degree of Protection provided by Enclosures.



NFPA72 National Fire Alarm and Signalling Code

4.3 Warranties

Warranties specified in this specification are additional to any warranties required by current Industry Codes of Practice and relevant regulations

4.4 Specification

And

Drawings

The drawings provided with this Specification shall be read in conjunction with this Specification. The Specification and drawings are mutually explanatory, and all work called for by one, even if not by the other, shall be fully executed and completed.

The drawings shall be considered approximate and diagrammatic only. Actual dimensions shall be obtained by The Sub Contractor.

Accept the responsibility to ascertain that all particular equipment offered fits into the provided spaces taking into consideration the requirements for maintenance and other factors affecting the installation.

4.5 Discrepancies & Omissions

If any discrepancy, contradiction or omission appears in the specification or drawings, refer same to the Project Manager and Consultant for resolution before submitting a Tender. The Consultant will issue directives on such matters in writing. Oral amendments to the specification shall not be recognised.

4.6 Setting Out Openings And Making Good

The precise location of all openings, fixings and similar items of work required for these works to be provided by the Main Contractor shall be determined at such times as not to cause delay to the work. All items shall be checked to ensure correct positioning. If openings, fixings and similar items of work are wrongly located or are omitted due to incorrect or lack of information, bear the responsibility of the cost of any remedial works.

The specification drawings are diagrammatic only and unless otherwise stated shall not be used for determining the precise positions of equipment outlets and like features. The exact location of these shall be determined on site or from shop drawings.

All chases, ducts, recesses and penetrations in structural elements not shown on the building and structural drawings shall be subject to approval.

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4.7 Positioning Of Outlets And Equipment

The layout of equipment shown on the drawings is diagrammatic only, and exact positions shall be determined on site. Final position shall be to the approval of the Architect/Consultant. Ensure that all plant offered in suitable for installation in the location and spaces shown on the drawings and will be accessible for maintenance in accordance with the manufacturer’s recommendations when installed. Outlets shall be spaced accurately and symmetrically within rooms.

Positions of all outlets, switches and fittings shall be chalked up in areas where the outlets are adjacent to tiles or other architectural dados. Approval of the Consultant shall be obtained before placing any final conduits or wiring for these outlets.

The position of outlets and switches shown on the drawings is assumed to be correct, however, variations of up to 2m may be effected without cost variation if the change is advised before the outlet or switch is fitted off.

Where outlets are in close proximity they shall be aligned horizontally and/or vertically as the case may be.

Equipment shall be symmetrically located in relation to other equipment and devices, the building module and general aesthetic treatment.

4.8 Co-Ordination

of

Installation

Co-ordination shall be carried out to ensure that all items for installation in false ceilings are provided in sufficient time to comply with the Main Contractor’s program. All other services within false ceilings shall be completely installed so that it will not be necessary to remove any ceiling tiles to finish other work, apart from commissioning.

Responsibility and provision shall be allowed for any cost where due to delays or deficiencies attributable to this Contract, ceiling tiles must be removed and replaced, or additional penetrations provided in the ceiling.

4.9 Performance and Guarantee

By the fact of this tendering, guarantee:

a) The equipment offered is of the most modern and correct design and construction and of the necessary capacity to efficiently perform the work specified.

b) The equipment offered is capable of being installed in the plant space shown on the exhibited drawing with adequate clearance for its proper operation and maintenance.

c) The equipment offered will provide the minimum capacities as scheduled elsewhere in this Specification or on the drawings.

d) All the settings and limits of all control instruments and equipment shall be the responsibility of The Sub Contractor and he shall ensure that the specified requirements and conditions are met.

4.10 Shop

Drawings

Prepare Shop Drawings of the proposed installation. All Shop Drawings shall be submitted to the Principal/Consultant for approval before commencing any work. All checking and approval of such drawings by the Principal/Consultant shall be construed as gratuitous assistance and does not relieve responsibility for errors or omissions from The Sub Contractor.

All submitted shop-drawings shall be in 1/50 scale minimum

Where such errors or omissions are discovered later they shall be corrected irrespective of any approval given by the Principal/Consultant. Approval of drawings shall not be construed as authorising

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additional work or increased cost to the principal. In the event that the drawings indicate additional work involving increased cost. Notify the Principal/Consultant at the time of submission of the drawings.

4.11 As - Installed Drawings

As from the commencement of work, employ a competent draughtsman to keep a record of all deviations and changes from the contract and workshop drawings and shall mark on a set of prints an accurate record of all work as actually installed.

During the progress of the work record on AutoCAD (latest version) files, as specified, the installations as actually built, and submit these to the Consultant for checking. Upon approval by the Consultant of these drawings provide sets of prints as specified elsewhere. In addition provide sets of correctly recorded diagrams, schedules of equipment, control panels and circuits, cable tray and conduit runs and all information regarding the installations as actually built.

In addition retain one copy of each of the "as installed" drawings and schedules for use during the Defects Liability Period.

4.12 Equipment

Deviations

The dimensions and ratings of equipment specified herein or indicated on the drawings are intended to establish the outlines and characteristics of equipment furnished by the particular manufacturers specified. Should an alternative be offered or intention to use an item of equipment other than that specified or shown on the drawings or in the Schedule of Technical Data (Appendix B) in the Contract, apply in writing to the Principal/Consultant and await written approval before proceeding.

Where such approved deviation requires a different quantity and arrangement of architectural or structural materials, or a different quantity and arrangement of wiring, conduit and equipment from that specified or shown on the drawings, furnish and install any such additional structural supports, insulation, controllers, motors, starters, electrical wiring and conduit, and any other additional materials and equipment necessitated by the deviation.

4.13 Packaged

Equipment

Where packaged or unitary equipment is specified or offered against this Specification, such equipment shall be modified to conform to the requirements of this Specification, whether or not this requires modification of the Manufacturer's standard construction.

The fact that a particular packaged item by name have been offered shall not absolve the requirement of modifications to meet the Specification.

4.14 Samples And Prototypes

Samples of materials and items described as "to be approved" shall be delivered to site at least 15 days before approval is required. Two samples shall be supplied of each item required, each one to be properly identified and marked with the suppliers name and model number. One of the samples shall be held on site, the second shall be returned to The Sub Contractor/Manufacturer once it has been viewed and comments have been received from the Consultant. On acceptance the samples will be marked with date approved and by whom.

Submit the following sample fittings and accessories to obtain approval of the Consultant before installation:



Light Fittings

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

Conduits, Cables, Cable Trays, Trunkings.

Arrange for the Consultant to inspect the samples to obtain approval and acceptance in writing of the offered samples.

The approved samples shall be retained on site for reference purposes until completion of the work. All such materials used in the work covered by this specification shall conform to the approved samples. The Consultant will be at liberty at any time to test or analyse samples of any materials brought onto the site and intended for these Works.

In addition to the above requirements for the production, submission and approval of samples and prototypes, the Main Contractor may prepare an area in advance of the general construction cycle. The purpose of this area shall be to ensure co-ordination of all services and finishes and as a display area. Provide and install all samples and prototypes required for such an area as directed by the Main Contractor.

4.15 Radio

Interference

All equipment and/or appliances provided under this specification shall be designed so that no interference will be caused with any radio or other electronic transmitting or receiving equipment in the same locality. In the event of the inherent characteristics of the electrical installation being such that interference is possible, efficient devices or screening techniques capable of eliminating such interference shall be provided at no additional costs.

Define the areas susceptible to interference prior to the purchase of equipment and appliances and advise the Consultant of the methods to be adopted to reduce the interference.

4.16 Labelling

All switches, fuses, relays, terminal strips, circuit breakers and compartments shall be comprehensively labelled to clearly indicate their function.

Labels shall be of Sandwich Ivorine or Traffolyte material, white with black lettering for normal power and white with red lettering for standby power.

Circuit breaker labels shall include base rating and protection setting. Submit all label schedules for approval prior to manufacture.

The labels on switchgear protecting outgoing circuits and sub-mains greater than 6 sq.mm per phase shall include the cable size, number of cores and cable type.

Labels for fuse combination units shall include both fuse rating and frame rating.

Each power outlet shall be engraved or fitted with a means of identification, indicating the circuit protective device and the distribution board to which the switch or outlet is connected. In the case of metal-clad power outlets, or equipment isolators, this means of identification shall be 5mm uppercase engraving red filled or an ivorine label, screwed to the metal casing of the switch or outlet, the label to be 10mm wide with 5mm lettering (white) on a black background.

For outlets and equipment other than metal-clad, engraving shall be 3mm uppercase red filled or circular tag labels equal to those referred to as "IPA studs".

Where consumer main and sub main cables enter and leave trays, racks, troughs or ducts along their route length and at each end they shall be labelled according to the cable schedule, or as directed with stamped aluminium or brass tags attached with nylon straps or other approved means. Such straps shall be used to tie together single core cables of the one circuit.

(23)

Where extra low voltage dichroic lamp luminaires are used within the installation a label shall be attached to each switchboard stating the following, "Warning: Ceiling mounted recessed extra low voltage lighting fittings are installed in these premises. In order to avoid the risk of overheating they MUST NOT be covered by thermal insulation".

4.17 Workmanship And Materials

Provide skilled and expert labour as necessary to carry out the work in the best possible manner. The quality of workmanship shall be of first grade and in accordance with the highest standards of the respective trades. Workmanship of poor quality or of an unacceptable standard will be rejected by the Consultant and must be replaced at no extra cost to the Owner/Principal with workmanship of the required standard.

All materials, fittings, accessories and apparatus are to be of first grade design and manufacture and are to comply with the relevant British and/or Australian standard specification. All materials, fittings, accessories and apparatus shall be new and shall be of current model and design unless specified otherwise. Submit for the approval of the Consultant prior to commencing installation, a list of all accessories, fittings and apparatus which it is proposed to employ in the work, and only such items as have been approved may be installed. Failure to comply with this provision will result in the unconditional rejection of such items when inspected on site.

Where directed by the Consultants "approved" samples shall be kept on site. Each item of equipment shall be a standard catalogue product of an established, reputable, approved manufacturer. All similar equipment shall be of the same manufacture, type, class and finish, unless otherwise specified. Where manufacturer’s catalogue numbers or types are specified or shown on the drawings, they are generally intended to be used as a guide, and are not intended to take precedence over the basic duty and performance specified or shown. In all cases, verify the duty with the particular characteristics of the equipment offered for approval.

Where no alternative materials are noted in the specification or on the drawings and where the words "equal", "approved equal", "as approved" etc do not appear, the exact make specified must be furnished and installed. No alterations will be permitted in the lists of manufacturers and suppliers submitted within Tender or subsequently without the written approval of the Consultant.

Should materials and/or equipment other than by the approved manufacturer or supplier, be installed, such items may be rejected on site. All such rejected items shall be removed from the site as soon as possible and be replaced by approved items at no cost to the Principal.

The replacement of any such items shall not constitute grounds for any variation or any extension of time.

Take every care to avoid damage to fittings, surfaces and equipment in the premises. Any damage caused shall be made good at no additional cost.

4.18 Power Factor, Balancing & Voltage Drop

Ensure and be responsible for the final installation having:



An overall power factor within acceptable limits



Been balanced over the three phases and



A voltage drop within acceptable limits

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4.19 Earthing

Earthing of the complete electrical installation shall be strictly in accordance with the requirements of the IEE Wiring Rules (BS 7671 2008 incorporating Amendment No 1 & 2), and the special requirements of the specification and the Local Power Company.

Earth conductors, excepting earth conductors in insulated and sheathed cables, shall be of annealed

stranded copper of a size not less than 1.5mm2_{and shall be insulated and enclosed in conduit with the}

respective circuit wiring. Earth conductors in insulated and sheathed cables shall be a minimum of 1.5mm2_.

The whole of the system shall be mechanically and electrically continuous throughout. All general purpose power outlets and light fittings shall be earthed.

4.20 Colour

Coding

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5 ASSOCIATED WORK AND TERMINATION

POINTS

The following work associated with the electrical services is to be executed by the Electrical Services Contractor unless otherwise stated.

5.1 Associated

Work

Carry out all civil, structural and building work required for access, construction, installation, operation and maintenance of the installation covered by this Specification, with the exception of the items specified as Carried out by others, the Contractor or the Client on the accompanying drawings and noted in the specification.

The strength and rigidity of all the structures and fastenings throughout the installation shall be designed to prevent failure, significant movement or deflection in accordance with appropriate British Standards. The calculations shall allow for all operating loads, both live and dead, including those associated with maintenance and associated traffic that would be experienced during the life of the installation.

Seal all penetrations, coordinate the formation of all necessary chases, openings, recesses and making good, in compliance with local Fire Life & Safety Code.

The Electrical Contractor shall be responsible for all other minor incidental work required for the completion of their work.

The Electrical Contractor shall be fully responsible for detailing the exact requirements in respect of this work and do so in good time to ensure that it can be co-ordinated, planned and carried out in accordance with the building program without causing re-work of work already performed or cause other unnecessary costs.

5.2 Building

Work

To be undertaken by the electrical contractor.

GENERAL: Sealing of penetrations through walls, floors and ceilings as described herein.

AIR TIGHT SEALS: Penetrations for trays, duct-work, piping, cabling etc through the structures subject to suction or pressurisation shall be sealed.

FIRE SEALS: Penetrations through fire rated wall shall be fire sealed.

ACOUSTIC TREATMENT: Acoustic requirements to all electrical switchrooms and plantrooms. PENETRATIONS: Penetrations, holes, chases in floors, walls, ceilings and roofs.

5.3 Schedule of Termination Points

Provision of electrical circuit, cabling and isolator or outlet as coordinated with the other trades as outlined below:

5.3.1 General



Provide socket outlets and/or isolators and/or direct connections for equipment as detailed on the

drawings. Coordinate final location and rating of equipment with equipment supplier. Ensure circuit breaker, cable rating and accessories are suitable for equipment supplied.

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5.3.2 Hydraulic Services Contractor



Provide socket outlets and/or isolators for equipment as detailed on the drawings. Coordinate final

location, ratings and all details with the hydraulic services contractor. Ensure circuit breaker, cable rating and accessories are suitable for equipment supplied.



Provide sub-main cabling to all Hydraulic Control Panels. Coordinate final location, ratings and all

details with the hydraulic services contractor. Leave 3m cable coil for connection by the Hydraulics / Plumbing Contractor. Ensure sub-main protection and sub-main cable ratings are suitable for equipment supplied.

5.3.3 Fire Services Contractor



Provide socket outlets and/or isolators for equipment as detailed on the drawings. Coordinate final

location, ratings and all details with the fire services contractor. Ensure circuit breaker, cable rating and accessories are suitable for equipment supplied.

5.3.4 Mechanical Services Contractor



Provide sub-main cabling to all Mechanical Control Centres (MCC). Coordinate final location, ratings

and all details with the mechanical contractor. Leave 3m cable coil for connection by the Mechanical Contractor. Ensure sub-main protection and sub-main cable ratings are suitable for equipment supplied.



Provide generator control wiring to all Mechanical Control Centres (MCC). Provide terminal strip

within the MCC. Coordinate all details with the mechanical contractor.



Provide metering system interface to the BMS to enable all meters to be read and by the BMS.



Coordination with the mechanical services contractor for interfacing between the electrical systems

and the mechanical controls and BMS including generator and metering.

5.4 Electricity

Supply

The Electrical contractor shall undertake all medium voltage cabling throughout the plots and provide medium voltage cable to the Medium Voltage Switchroom.

Provide suitable cable access ways from the site boundary to the Medium Voltage Switchroom for cabling by the Electrical contractor.

Undertake all lugging and connect the medium voltage cabling onto the Medium Voltage Switchboard. Coordinate all details with EVN to ensure all cabling details and locations are confirmed prior to construction.

Obtain all required EVN approvals of all incoming supply details prior to construction.

5.5 Medium Voltage Switchboard

Provide a new Medium Voltage Switchboard as shown on the drawings including incoming isolating switch, feeder circuit breakers and outgoing isolating switch. Provide with suitable overcurrent and earth fault protection. Provide Medium Voltage Switchboard as standard EVN approved equipment.

Provide and install MV Switchgear in accordance with the following document:



EVN Standard Technical Specifications for MV Electric Works



MV Switchgear (Specification)

11kV, 22kV or 33kV SF6 Gas-Insulated Switchgear Provide the completed data sheet.

(27)

Locate the MV Switchboard within the Medium Voltage Switchroom in suitable location for maintenance of the unit and for the future extension. Coordinate with structural steel supports for the equipment and ensure structural steel supports in correct location. Provide suitable structural support frame for the medium voltage switchboard. Provide metal grid mesh flooring to the medium voltage switch gear room (where applicable).

Provide all equipment and undertake works in accordance with EVN requirements and obtain approval of the installation from EVN.

5.6 Medium voltage feeder cabling

Provide and install Medium Voltage Feeder Cabling as shown on the drawings from the medium voltage switchboard to the transformer. Reticulate the cabling within cable trench or cable ladder. Fire seal all penetrations between the medium voltage switchgear room and the transformer room.

5.7 Transformer

Provide and install transformers in accordance with the following document:



EVN Standard Technical Specifications for Electric Works



Transformers / Reactors / Resistors (Specification)

Auxiliary / Distribution Transformers (Epoxy-Resin Dry Type, Indoor Installation) Provide the completed data sheet titled:



Transformers / Reactors / Resistors



Auxiliary/Distribution Transformers (Epoxy-Resin Dry-Type, Indoor Installation) 2x1250kVA,

2000kVA 22/0.4 kV



Step-up Transformer (Epoxy-Resin Dry-Type, Indoor Installation) 560kVA, 2500kVA

Provide transformers in full compliance with the above documents and to EVN approval. The following general parameters are applicable:

Table 1 Transformer general parameters

General

Kind of Installation Indoor

Applicable Standards IEC 60076, 60726

Type of core Core type

Number of windings Two

Ratings

Rated power kVA 630, 1600, 2000

Maximum ambient temperature Degree C 50

Maximum service altitude m 1000

Temperature rise limit of windings K 90

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Fire behaviour class of transformer Class F1

Rated primary voltage kV 22

Rated secondary voltage at no-load on principle tap kV 0.400

Number of phases 3

Permissible load of neutral point % 100

Vector group symbol Dyn11

Rated frequency Hz 50

Impedance voltage (75 deg C) at full rated power % 6

Magnetic flux density at rated voltage and frequency Tesla 1.72

Maximum permitted load losses at 75 deg C, rated voltage,

frequency, full site rated load and main tap kW Max. 9.0

Maximum permitted no-load losses at 75 deg C, rated voltage, frequency, full site rated load and main tap

kW Max. 2.3

Tapping Range +/- % 2 x 2.5

Number of steps +/- No. 2

Tapped winding HV

Principal tapping at kV 22

Insulation Level

Primary

Power frequency withstand voltage (winding) kV 50

Lightning impulse level (winding) kV 125

Power frequency withstand voltage (bushing) kV 70

Lightning impulse level (bushing) kV 170

Secondary

Power frequency withstand voltage kV 3

Protective Housing

Protection class IP Min. 21

Housing prod proof Yes

Tests

Routine tests according to IEC 60076 and specifications On each unit

Separate source AC voltage withstand test On each unit

Test voltage / primary kV 50

Test voltage / secondary kV 3

Induced AC voltage withstand test On each unit

Test voltage / primary kV 44

Test voltage / secondary kV 0.83

Test duration s 60

Operating Details

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Constant power at all taps Yes

Noise level (LpA) at measuring distance of 1.0m dB (A) Max 56

Auxiliary supply voltage Vac 400/230

Locate the Transformers within the Transformer room in suitable location for maintenance of the each transformer with 15000mm clear access to the medium voltage switchgear room. Coordinate with structural steel supports for the equipment and ensure structural steel supports in correct location. Provide suitable structural support frame for the transformer. Provide metal grid mesh flooring to the transformer room.

5.8 Compact

Substation

The Medium Voltage Ring Main Unit shall be indoor type unit designed with the minimum acceptable degree of ingress protection (IP) for electrical equipment and devices as IP 54, The unit shall be integrated assembly, self-contained, totally insulated and shall comprise:



Stainless steel, gas-tight metal enclosure, sealed for life, which groups together the live parts and

three (3) functional units



Three cable compartments with interfaces for connection to the network and distribution transformer



Low Voltage compartment



Operating mechanism compartment

The performance characteristics obtained by the Ring Main Unit shall meet the definition of a "sealed pressure system" in compliance with latest IEC recommendations

The enclosure shall be filled with SF6 gas at a 0.2 bar gauge pressure.

It shall be sealed “for life” after filling. Its tightness, which shall be systematically tested at the factory, shall give the switchgear an expected lifetime of 30 years. No maintenance of live parts shall be necessary.

5.9 LV Mains Cabling

Provide LV Mains Cabling from the transformer to the Main Distribution Board located on cable ladders within the transformer and LV Main Switchboard room as shown on the Detailed Design drawings. Reticulate sub-mains on cable ladder in arrangement to avoid de-rating and to separate cabling suitably. Provide cabling of size and type as denoted on the main single line diagram drawing. Provide suitable space and bus bar connections within the incoming cable way within the Site Main Switchboard for reticulation of the LV Mains Cabling. Fire seal all penetrations between the transformer room and the site main switchboard room.

5.10 Generator

Provide and install generator as specified in drawings. Provide 2x1800kVA diesel generators for hotel zone and 1x500kVA diesel generator for villa. All generators are ”stand-by” type

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5.10.1 General

Provide an emergency standby power diesel generator set to operate life safety and other nominated equipment in the event of mains power failure. Provide a generator set as a low voltage 400V, high speed 1500rpm, and standby rated set.

Provide a generator set with performance class G2 as per BS ISO 8528-1, wherein at situation when load changes occur, there may be temporary but acceptable deviations of voltage and frequency

5.10.2 Method of Operation

The generator set will not be operated in parallel with the mains. Connect the generator to the system by break-before-make 4-pole automatic transfer switches and provide all necessary control panels and cabling to enable the system to operate as follows:



Mains power failure detected by phase failure relays (PFR) at mains supply side of each automatic

transfer switch (ATS).



Loss of power to affected systems – battery and UPS backed systems continue to operate – all

other systems shut down.



After short time delay which is set on the ATS (say 5 second to allow for upstream HV fault

clearance) the ATS sends a signal-to-start the generator.



Generator starts and runs up to frequency and voltage – typically 20 to 30 seconds



Signal provided to BMS, MCC’s., FIP (Fire Indicator Panel) to initiate required control sequence at

generator start-up. This is to control mechanical systems and advise they are in generator mode.



ATS sense frequency and voltage within limits on the generator supply side



ATS opens mains circuit breaker



ATS closes generator circuit breaker



Standing load immediately accepted on generator – lighting and fixed power to be within step load

of generator to prevent stalling



Life safety loads regain power as required



BMS and MCC’s go to generator mode and sequentially re-start required mechanical plant as

required by the controls.



Generator operates selected systems during mains power failure



Mains power recovery sensed by PFR at mains incomer to ATS



After a time delay to ensure security of supply the generator circuit breaker is opened (say 2

minutes) – within load rejection capacity of generator to prevent over speed and shutting down



ATS closes mains circuit breaker (within 1 second of opening generator circuit breaker) – standing

load loses power for short time – HVAC plant programmed to ride-through short break or operate a mains re-start



BMS and MCC’s signalled system back to mains power and sends control signal to all systems to

restart.



Generator operates a rundown period as per the manufacturer’s recommendations (typically 3-5

minutes).



The acoustic level for generator within range 90 decibels (dB) for 1 to 7 m and 70 decibels (dB) for

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Provide a generator test connection point on the external wall of the generator room to for a portable resistive load bank connection to the generator. Provide shunt trip circuit breaker supply to the load bank testing unit to ensure that in the event of mains power fail during load bank testing the load bank circuit breaker gets shunt tripped and the control procedure above follows.

Provide and install control wiring to the BMS to enable all alarm, generator run and status signals to be incorporated into the BMS.

Provide a generator control indicator panel on the wall within the building management room to indicate ”Mains Supply”, “Generator Run”, “Generator Online”, “Generator Alarm” and “Generator Fault” indication lights.

5.11 Synchronizing

Control

Panel

Provide Synchronizing Generator Control Panel (Sync-GCP) within the Main Electrical Rooms located in location as shown on the design drawings. The main facilities of Sync-GCP are indicated on the schematic design drawings and include the following.



Main Switches



Sub-main protection including ACB, MCCB.



Main Bus



Power analysers to measure kW, kVA, kWhr, Amps, Volts, pf, Hz and connected back to the BMS

system



Pilot lamps (R, W and B) to indicate when switchboard is live

Sync-GCP’s shall be provided by an approved manufacturer and shall comply with BS EN 60439-1.

5.12 Main

Distribution

Board

Provide main distribution board (MSB) within the Main Electrical Rooms located in the Basements & MEP technical levels as shown on the design drawings. The MSB main facilities are indicated on the schematic design drawings and include the following.



Main Switches



Sub-main protection including ACB, MCCB.



Main Bus



Supply authority metering



Power analysers to measure kW, kVA, kWhr, Amps, Volts, pf, Hz and connected back to the BMS

system



Pilot lamps (R, W and B) to indicate when switchboard is live



Earthing System

MSB’s shall be provided by an approved manufacturer and shall comply with EVN regulations and BS EN 60439-1.

Obtain approval of the shop drawing from the Electrical Engineer prior to manufacture of the switchboard. Provide all equipment and undertake works in accordance with EVN requirements and obtain approval of the installation from EVN

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5.13 Metering

Facilities

Provide metering facilities as shown on the drawings and described below:



Provide EVN LV metering equipment for the Villa Distribution Boards.



Provide EVN MV metering cubicle for Medium Voltage Switchboard



Provide EVN LV metering equipment for the Villa Distribution Boards.



Provide LV metering panel equipment for each tenant services.



Provide separate power analyser check meters to each switchboard and distribution board linked

back to the BMS with the following capability:

 Provide hourly, daily, weekly, monthly and annual energy consumption for each end use

 Compare consumption to previous days, weeks, months and years for trend analysis

 Determine ‘out-of-range’ values and alert building operators to unusually high consumption; and

 Record peak energy consumption for each end-use.

Metering facility for energy metering will be provided to monitor energy usage.

5.14 Surge Suppression Equipment

Provide surge suppression equipment as shown on the single line diagrams including the following:



Surge Diverter on Site Main Switchboard



Surge Filters on Communications cabinet circuits



Surge Filters on Security System circuits



Surge Filters on BMS circuits.

5.15 Submains

Distribution

Provide sub-mains to service the following as generally indicated on the design schematics.



Retail unit Sub-mains



To all final distribution boards



Mechanical Control Panels



Lifts control panel



Hydraulic Control Panels and Equipment



Fire Control Panels and Equipment



Fire indicator panel.



Miscellaneous items as shown on the design schematic.

Provide sub-mains complete with the supports systems. Sub-mains to be provided with suitable space to manufacturers requirements and to avoid de-rating.

Sub-main sizes and cable routes shown are indicative only. Co-ordinate and confirm final loads, spare capacity required and final cable routes with other trades before installing sub-main supports and cables. Cables sizes shall cater for:

(33)



Full current rating or sealed trip settings of the upstream protection devices.



The installation method and separation from adjacent heat-emitting services or insulation materials.



Worst case voltage drops to a maximum of 1.75% from main switchboard main buses, at ultimate

ratings to final distribution board in the system.



Short circuit fault withstand capacity.

Sub-main cabling shall reticulate on cable tray or within conduit for their entire length.

5.16 Distribution

Boards

Provide distribution boards as shown on the Power Schematic Diagram.

Distribution boards shall be generally mounted in electrical rooms, free standing on external concrete plinths or exposed in rooms. Distribution boards within electrical cupboards do not require doors over. Distribution board construction shall be fully enclosed metal construction, with stainless steel cover and manufactured in accordance with EVN Regulations with ratings and internal segregations as shown on the drawings.

Provide sub-circuit protection, controls and accessories as required including main switch, metering, emergency/exit lighting test switch, pilot lamp, sub-circuit protection, surge protection, lighting control and other devices as shown on the drawings. Each distribution board shall have miniature circuit breakers (MCB’s) and residual current devices (RCD’s) as required, with 15% spare capacity for future use.

Provide typed load distribution schedule securely fixed inside the door of the distribution boards indicating all circuits. Provide suitably fixed permanent circuit identification to all outlets to match the distribution board legend.

Obtain approval of shop drawing from Electrical Engineer prior to manufacture of the distribution board.

5.17 Uninterruptible

Power

Supply

Provide a distributed Uninterruptible Power Supply system, as specified herein and shown on the drawings to serve the Fire Alarm & Public Address System, BMS System.

Provide static uninterruptible power supply with batteries to maintain full load power continuity for as indication in drawing

Provide the new UPS with the following parameters:



UPS module shall be a Static type



400V, 3 phase, 4 wire, 50Hz



Battery system with minimum duration of backup at full load as per service



Battery system with minimum 10 year warranty



Total Harmonic Distortion Unit



All components to be installed within UPS Modules

The UPS shall be installed within the main switchboard room, Fire control & BMS room as indicated on drawings.