Source: https://www.scribd.com/doc/168528444/Generator-Specs
Timestamp: 2017-07-21 13:15:04
Document Index: 656259628

Matched Legal Cases: ['arts 3', 'arts 3', 'art 99', 'art 99', 'art1', 'art12', 'art12']

Generator Specs | Switch | Electrical Wiring
Generator SpecsUploaded by Vijay SundaramRelated InterestsSwitchElectrical WiringRelayMechanical EngineeringElectromagnetismRating and Stats0.0 (0)Document ActionsDownloadShare or Embed DocumentEmbedView MoreCopyright: Attribution Non-Commercial (BY-NC)Download as PDF, TXT or read online from ScribdFlag for inappropriate contentPROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS himself, these tests shall be carried out again in the presenceof the Engineer and certified by the Engineer. A.42 Electric Substation The Contractor shall supply, installation, test and commission of a 11KV/415V electric substation at the location shown in the drawings, to the approval of MEDC and the Engineer. This shall comprise,
11KV ring main unit (RMU) with foundation, earthing etc. 11KV cabling including terminations, straight through joints, excavation, backfilling etc. 11KV/433V, 1600KVA transformers including foundation, earthing etc. 3C-95mm2 11KV cabling between the new RMU and new 1600KVA transformers including termination, excavation, backfilling etc. Earthing and grounding Substation enclosure including all builders works.
Electrical Contractor shall be registered with MEDC to carryout 11KV substation works. All equipments and accessories must be MEDC approved. Contractor shall obtain approval of their drawing indicating full details of the works from the Engineer and MEDC, prior commencement of the works. Contractor shall also arrange for MEDC inspection during the course of these works and obtain approval on completion. Contractor shall ensure that due account has been allowed in their Tender to include all item, accessories etc. which may be necessary to complete this work in full compliance with the MEDC requirements.
Emergency Generating Plant The Contractor shall supply, install test and commission an automatic start diesel generating plant with all necessary switchgear, free standing control cubicles, AMF panel etc. as shown in the drawings complete with all necessary accessories. The size of the set shall be same or next higher standard maximum continuous rating to the rating specified, when operating at the specified frequency, voltage, altitude, maximum ambient temperature and humidity. The Contractor shall be guided by the emergency power house layout details shown on the Drawings, but a final detailed and dimensioned layout suitable for construction shall be submitted to the Engineer for approval prior commencing the work. The design of the plant and its installation including all ancillary equipment shall be such that it minimizes the noise and vibration.
-A33 of A49-
SIMON ENGINEERING AND PARTNERS LLC
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS Operation of the System Starting a) The generating set(s) shall start automatically if the voltage of the normal supply made available to the control cubicle of the emergency set(s) as measured between any or all phase and natural, remains below an adjustable setting (60-90% of rated) for an adjustable period of time (setting 5 to 60 seconds). b) The emergency generating plant shall be designed so that it will come up to steady full speed from cold condition within ten seconds of the "start" impulse. It shall then be capable of accepting 50% of its prime power rating load under power factor variations of 0.8 to unity lagging with maximum transient voltage over, or under shoot of 3% maximum transient frequency variation of +/- 2% of nominal. It shall be capable of accepting its full size rated load within two minutes of starting up, provided that within this period it will be loaded to at least 25%. Stoppage After the normal power supply voltage made available at the control cubicle is restored to above 90% of its rated value on all phases for a new start. The plant shall in any case continue to run for at least three minutes after removal of all load. Failure Should the engine fail to start in 20 seconds following the 'Start" impulse, it shall come to rest for 20 seconds. Two further attempts shall be automatically performed with intermediate periods of rest. Should the sets not start after three attempts, an alarm shall sound and signal "Start failure" shall illuminate. Manual Operation It shall be possible to operate the set manually for testing and normal operation purpose. For this purpose the set shall be provided with a duty selector switch arranged for OFF/TEST/MANUAL/AUTO. Equipment General a) The engine-generator set shall be a complete package unit mounted on a rigid base suitable for skidding with the radiator mounted integrally with the set. b) The equipment shall include but not be limited to the items described in the Specification.
MEP SPECIFICATION -A34 of A49SIMON ENGINEERING AND PARTNERS LLC
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS c) The design of set shall allow the easy replacement of major items subject to wear. d) A flexible coupling shall be fitted between the engine and generator to provide the drive and absorb the transmission of shock loads, and shall be completely shielded by a coupling ring and adequate steel guards. e) Complete protection from machine vibration is required for the building and all instrumentation and control equipment, including engine-mounted instruments. This may be achieved either by mounting the combined engine / generator unit to a separate sub-frame resiliently mounted on the main frame, or by mounting the entire main frame on anti-vibration mountings, and securing the machine instrument panel by its own resilient mounting. The mountings employed, method of mounting and floor structure and thickness shall be approved by the manufacturers and Engineer. Diesel Engine a) The engine shall be of the direct injection on pre-combustion chamber, four stroke, turbo-charged type with air after cooling. It shall operate on diesel fuel oil at 1500 RPM and shall comply with BS 5514 Parts 3-5 including capacity to withstand 10% overload for one hour in any period of twelve hours. The net power rating of the engine under worst site conditions shall be such as to deliver the net KW indicated for the alternator. b) The engine shall be constructed so that the rocker box cover is easily removable without disturbing fuel injection pipes or other components. It shall be possible to remove and replace all pistons and piston rods, liners, big and small end shells and caps without dismounting the engine. It shall be possible to bar the engine over by hand for spill timing check and adjustment purposes. If the engine is of the wet linier type a witness hole shall be provided between the loner sealing rings of each cylinder in order to permit early detection of coolant or oil leakage. Engines of six cylinders shall be provided with torsional vibration dampers. It shall be possible to measure with the aid of extra instrumentation, certain values such as coolant temperature at the lower end of the radiator, air depression after the air filter, air boost and temperature and any others recommended by the manufacturer. To achieve this, accesses shall be provided, normally sealed by means of threaded blanking caps. c) The engine shall be of the water-cooled, radiator type and shall be equipped with the following, Cooling System The engines shall be water-cooled and the water pump gear-driven. The cooling system shall be pressurized and equipped with a heavy duty radiator mounted integral with the set and cooled by a reverse flow fan. A fan cowl and hand protection guard shall be fitted. Coolant temperature shall be controlled by means of one or more wax-cartridge type thermostats.
MEP SPECIFICATION -A35 of A49SIMON ENGINEERING AND PARTNERS LLC
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS
Lubrication System The lubricating oil system shall be of the full pressure circulating type, complete with full flow lubricating oil filters with replaceable elements and a lubricating oil heat exchanger. Filter system shall be equipped with a spring loaded by-pass valve as an insurance against stoppage of lubricating oil circulation in the event the filters become clogged. Fuel System The system shall be complete and shall be capable of supplying the engine by gravity from a day fuel tank. The injection pump and injectors shall be easily removable and replaceable for servicing purposes. Engine shall be equipped with a built-in, gear type, engine driven fuel transfer pump, capable of lifting fuel against a head of 2500mm for supplying fuel through the filters to the injection pump at constant pressure. Fuel system shall be equipped with easily replaceable fuel filter elements. Exhaust System The exhaust system shall be complete with a dry type exhaust manifold with flanges, flexible exhaust expansion connections, exhaust pipes and residential exhaust silencer. The silencer, manifold flanges, and flexible connections, shall be properly sized to reduce the back-up pressure to a minimum, bearing in mind the required exhaust pipe length shown on the Drawings. The silencer shall be fitted with a drain plug at its lower end to permit excavation of condensed humidity. The Engine exhaust piping shall be insulated with asbestos tape with a total thickness of at least 10mm. Air Intake System A heavy duty engine mounted air intake cleaner shall be provided for the engine. Starting System Electric starting of the engine shall be possible either manually by means of push button or automatically by means of the automatic control panel. Starting system shall consist of a 24 volts lead acid battery housed in a tray on the set, and a suitable battery charger. The starting pinion shall automatically disengage when the engine starts. Governor An isochronous hydraulic type engine governor with external speed and droop adjustments shall be provided. Governing shall be class A1 limits of B.S. 5514 Parts 3-5. For this purpose the Contractor shall submit all the information listed in the above mentioned Standard. Governor shall be capable of providing accurate speed control within 1% of the rated speed.
MEP SPECIFICATION -A36 of A49SIMON ENGINEERING AND PARTNERS LLC
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS Protective System and Engine Mounted Instruments An automatic shut-down protective system with signaling lights shall be provided to shut-down the engine in the event engine over-speed, low lubricating oil pressure, and high cooling water temperature. Complete shutdown system shall be arranged to energise an alarm system located within the plant room and to trip the respective generator circuit-breaker. Following engine mounted instruments shall be provided for each set,
Water temperature gauge Lubricating oil temperature gauge Lubricating oil pressure gauge Tachometer Running time meter
Generator The generator shall be of drip-proof construction, in accordance with BS 5000 part 99 : screen protected, revolving field, brushless type with adaptor and flexible coupling for direct connection to the engine at the flywheel end. It should be suitable for non-linear loads such as UPS. The required Generator characteristics are as below. Type No. of phases Winding Connection Net rated output Power factor Frequency Overload Insulation : Brushless with salient pole field system incorporating rotating exciter and three phase rectifier system : Three : Star with ground : neutral : As per drawing : 0.8 : 50 Hz : 10% of name plate rating for one hour every 12 hours : Class "F" stator to BS 2757 : Class "B" rotor
The Generator Performance shall be as below, Voltage Regulation : The exciters shall be of static type with magnetic amplifier regulator forming and integral part of the alternator. Overall voltage regulation from no load to full load, including hot to cold variations and load power factor between 0.8 lagging and unity shall be within +/- 2% of nominal voltage. Voltage build-up shall be in a positive and rapid manner even when the machine is connected to its load circuit.
MEP SPECIFICATION -A37 of A49SIMON ENGINEERING AND PARTNERS LLC
The line to line voltage waveform shall be at least to the requirements of BS 5000 part 99. the total harmonic content shall not exceed 3%. Radio interference suppression shall be at least to B.S. 800. The generator shall be fitted with field suppression system that eliminates any source of diode failure resulting from high inductive loads. Control Equipment General The control board for the generator shall include all necessary compartments (cubicles) to house the following basic components.
Medium voltage auxiliary supply from generators. Generator medium voltage controls and instrumentation. Generator protective devices and relays. Generator earthing cubicle containing a suitably rated isolating switch. All necessary control equipment to operated the system as described under paragraph 2 of this subdivision. Control and auxiliary power circuit protection.
The control board shall be of the totally enclosed, indoor free standing type of sheet steel construction incorporating a hinged instrument and control panel. All components mounted inside the cubicles shall be ready accessible. Adequate ventilation for all components inside the control board shall be insured. Generator Protection The generator control cubicle shall be provided with the following relays which shall insure the tripping of the generator circuit-breaker, the stopping of the respective diesel generating set and the sounding of an alarm signal under fault conditions : I.D.M.T. + E/F relay for over current and earth fault protection. One auxiliary tripping relay controlling the circuit breaker trip coil and initiating audible alarm. Control Board Instruments General
MEP SPECIFICATION -A38 of A49SIMON ENGINEERING AND PARTNERS LLC
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS Instruments shall be as herein specified and supplied as below. Generator incoming section shall include one volt meter and selector switch, one frequency meter, one duty selector switch, one ammeter and selector switch. Control section shall include all the equipment and instruments necessary for the proper operation of the system. Detailed information shall be made part of the tender. All instruments shall be housed in identical 4" enameled square metal cases suitable for switchboard flush installation. Instruments shall be with linear scales and markings. Instruments shall be suitable for local climatic condition. Accuracy of all instruments shall be within 1% unless otherwise specified. Voltmeters Voltmeters shall be moving coil type with 2400 scales and a center zero adjuster. All voltmeters shall be fitted with rotary type 7 position selector switch permitting both line to line to neutral readings and an "OFF" position. Ammeters Ammeters shall be moving coil shunt operated type with 2400 scales and a center zero adjuster. All ammeters shall be fitted with a 4 position selector switch permitting line current readings and "OFF" position. Frequency Meters Frequency meter shall be moving coil transducer driven type with a frequency range of 45-55 Hz and a 2400 scale. Frequency meter shall be suitable for connection to a 220 volts power supply. Test Terminal Blocks The Generator's control board shall be fitted with test blocks to permit sitetesting of the 3 phase kWh meters, without interrupting the load circuit including all protective relays. All terminals shall be of solid brass and rated 50 amps at 520 C Miscellaneous Switchboard Accessories For each generator cubicle the following accessories shall be provided : i) One set of momentary contact "START" and "STOP" push-buttons for each generator cubicle. ii) Signal lamps and alarm bell. iii) One set of automatic shutdown reset buttons.
MEP SPECIFICATION -A39 of A49SIMON ENGINEERING AND PARTNERS LLC
iv) One selector switch "OFF/TEST/MANUAL/AUTO". d) Wiring All wiring between control switch board and external equipment shall be arranged on a master terminal board with all circuits protected by appropriate fuses. All connections are to be made at the front of the terminal boards and no line metal is to be exposed at the back. The board shall be of the dead front construction according to B.S. All metallic cases of instruments, control switches, relay etc. are to be connected by means of bare copper conductors of not less than 0.005 square inch-section to the nearest earth bar. All secondary wiring is to be polyvinyl chloride (PVC) insulated and if multicore PVC sheathed cable, or other fire resisting cable of an approved type. All circuits are to be wired in 600 volts grade cable. All wires are to be fitted with numbered ferrules of an approved type at each termination. At points of inter-connection between wiring, where a change of numbering cannot be avoided, double ferrules are to be provided on each. e) Neutral Compartment : Each generator shall be solidly grounded through an isolating switch. Day tank and Day tank Lines a) Day tanks shall be of closed rectangular or cylindrical construction inclined by at least three degrees from the horizontal fitted with a drain-plug at the base of the lower end. b) The lines from the day tank to the machines shall be at internal cross-section at least equal to that specified by the manufacturer. They shall be provided with stopcocks at both tank and engine ends. c) The day tank shall be provided with a breather pipe with replaceable paper type air filter or with breather caps with air filters. d) Each engine shall be equipped with an anti air-lock breather, consisting of a length of steel tubing of at least 1 m above the top of the day tank and terminating in an inverted U. e) The day work shall be fitted with a float switch to control the solenoid valve. f) The installation shall include schedule 40 MS pipework with necessary valves etc. for connection and proper function of the generator.
-A40 of A49-
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS Battery Trickle Charger A mains operated trickle charger shall be supplied with the generator in order to maintain the battery in good condition. It shall be fitted with on-off switch indicator light, input and output fuses and reverse current protection. Upon operation of the standby plant the charger shall be disconnected from the battery and from the mains. An ammeter to indicate rate of charge and battery voltmeter shall be fitted. Miscellaneous a) The Contractor shall calculate and build a reinforced concrete foundation block to support the generating sets. Calculation and detailed drawings shall be submitted to the Engineer for approval. b) The Contractor shall design and build all trenches, covers, railings, grating and the like required for the plant. c) A canvas duct shall be installed between the radiator and the louvered opening in the wall for radiator exhaust air. d) The Contractor shall supply and install all piping, cabling and other required accessories and items for a complete emergency generating plant. e) The contractor shall supply all the required standards and special tools for routing maintenance and normal overhauls, in suitable wooden cupboard. f) The spare parts required for normal operation during one year shall be supplied with the sets, and placed in a suitable cupboard. Priced spare part list shall be supplied with the Tender. g) Manuals and technical literature required for operation, maintenance and overhaul shall be supplied in English, in 3 copies. A.44 Materials Approval / Shop Drawings Materials Approval Complete details of the materials to be submitted by the Contractor for approval of the Engineer prior to the ordering of any material which are covered by this subdivision but not be limited to the following,
Complete technical data on diesel engine, including operating characteristics, site rating, fuel and lubricating consumption, manufacturer's catalogue cuts, dimensions and weights, etc. Detailed description of all components of the engine: starting system, super charger, governor, injector, cooling radiator, air, fuel and lubricating filters etc., with manufacturer's catalogue cuts and operating characteristics.
-A41 of A49SIMON ENGINEERING AND PARTNERS LLC
Detailed description of all auxiliaries such as batteries and charger, fuel day tank, exhaust pipe and silencer. Detailed description of engine control, instruments, protection alarms and cut-offs, etc. Complete technical data on generator and excitation standards to which it complies, type of insulation, system of cooling, system of excitation, voltage regulation, etc. with manufacturer's catalogue cuts. List of standard and special tools supplied for routing and major overhauls. List of spare parts for 2 years of operation. Operator's manuals, maintenance book, drawings, etc.
Shop Drawings The Contractor's shop/construction drawings for installations covered by this sub-division shall include but not be limited to Complete drawings of the generating plant in the particular location of the project, with indication of all components, piping exhaust pipes, power and control cabling, etc.
Construction drawings for foundation block with indicating holes for anchoring bolts. Schematic diagram for power and control wiring. Complete layout drawings for piping. Shop Drawings for all supports, frames, louvers, plates, etc. Plans and elevations of control panels.
Fire Alarm System The Contractor shall supply, install, commission and maintain an automatic Fire Alarm System including all accessories, and cabling as per the drawings. The system should comply with the latest British Standards and should be approved by ROP Civil Defence. Equipments and accessories installed outside the building or near open area shall be weatherproof to IP67. Wiring inside the building shall be carried out by fire resistant cable fixed exposed above false ceiling in areas with false ceiling and inside concealed conduits in other areas. No joints in the wiring will be permitted. Fire Alarm cables shall not be routed through the duct used for other electrical wiring purposes. External Fire Alarm cables to be XLPE/SWA/PVC/cu. type and laid at least 150mm away from any other electrical cable carrying 240/415V and 300mm away from 11 KV cable.
-A42 of A49-
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS The Complete system has to be installed, tested and commissioned to the entire satisfaction of the Engineer and Employer. Analogue Addressable Fire Alarm Control Panel The Control Panel shall be designed, manufactured and tested as per ISO 9001, this shall be modular type to readily accept additional input and output cards without modification in the panel. The door shall be fitted with suitable hinges to allow opening more than 90oC. The control panels shall be fully programmable and user friendly. This shall be provided with 4 loop fire alarm panel. The Control Panel shall have integral power supply unit comprising temperature compensated charging complete with heat monitoring device, voltage input sensing for 100-220V AC supplies, LED indicators to assist with fault diagnostics and the facility to connect additional supplies for increased load requirements. The Fire alarm panel shall be wired and inter faced with the existing fire alarm setup. The Control Panel shall have following features. x x x x x x x x x x x Capable of displaying the first and last zones in alarm in addition to scrolling facility. Should be user friendly requiring no special tools for programming the cause and effect the text, to view the device information during zonal alarm condition. Shall have a menu driven set up procedure. Screen shall provide screen prompts to assist the operation. Should clearly identify the zones in alarm, test, fault and isolation conditions. Shall incorporate 10 priority levels for inputs to accommodate non fire signals and shall have the facility to allocate text to all inputs and outputs. Shall readily accommodate plant indications with clear segregation and marking. Shall have 3 access levels with password protection selectable through numeric keypad. Shall have facility to change status texts messages on LED to facilitate language translations. Shall include minimum 4 nos. fully programmable sound circuits, 4 nos. fully programmable volt-free contacts and 1 no. fail safe fault volt-free contact. Shall include software for alarm management with at least Device Alarm Validation, Delays to zonal inputs, Delays to outputs, co-incidence detection complete with break glass overriding facility, Device sensitivity adjustments and day/night switching.
Smoke Detector Smoke detectors shall be surface mounting type comprising a base and a removable detector head. The base can be fixed directly on the ceiling or either on a BESA box or a BS 1363 box. Smoke detectors shall operate between 1632 volts and have 2 nos. LED for identification of fire condition.
MEP SPECIFICATION -A43 of A49SIMON ENGINEERING AND PARTNERS LLC
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS Smoke detectors shall be ionization type with addressable analog and digital output for status monitoring. The detector base shall be electronic free for ease of installation. Heat Detector Heat Detectors shall be surface mounting type comprising a base and a removable detector head. The detector should utilize a duel thermostatic sensor to monitor the surrounding temperature between –10oC and +60oC and provide analog and digital communication to the panel for rapid increase in temperature, instantly. Heat detector shall operate between 16-32 volts and shall have 2 nos. LED for identification of fire condition. Break Glass Units Break glass units shall be surface mounted type. The alarm button should jump out when the glass is broken. Units shall be inscribed in Arabic and English. Break glass units shall be fitted with an approved hinged plastic cover to avoid accidental breaking. Break glass units shall be suitable for analogue addressable communications. Alarm Bells Alarm bells shall be 6" diameter surface mounted type 24V D.C. operated, and of low current consumption and high sound output type. Bells should be red coloured and inscribed in Arabic and English. General A framed sketch to be fixed near the Fire Alarm Panels highlighting areas of zone A.46 Telephone and Computer System Contractor shall provide all conduits, junction boxes, trunking etc. necessary for telephone and computer cabling distribution within the same floor and between the floors as shown in the drawings. 4 pair Cat6 UTP cable to be provided from telephone/computer equipment patch panel to each outlet directly for telephone and computer system. The Contractor shall provide one no. 12 core indoor/outdoor rated composite fibre optic cable (6 core 62.5/125P multimode fibre and 6 core 9/125P single core fiber) from the equipments in each building to server room through manholes and ducts. All cables shall be terminated, communication tested and logged by the specialist approved Sub-Contractor. Telephone and computer system to be supplied by the Contractor within this Contract. Room Service Outlets Single or dual RJ45 outlets, specified to at least category 5e, wall or floor mounted as required in PVC or steel finish as per the requirements of Projects
MEP SPECIFICATION -A44 of A49SIMON ENGINEERING AND PARTNERS LLC
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS Department to be provided. Termination must be included and termination shall have full eight conductor connection to T568B (AT&T) standards. These shall be permanently labeled as per Engineers & Employer’s requirements. UTP Cabling One from each service point to patch panel. Cables shall be permanently labeled at both ends with the circuit identification, as per Engineer’s and Client’s requirements. Fibre Optic Cable The Contractor shall provide approved fibre optic backbone cabling between the Hub/switchers located in each warehouse. This shall be Low Smoke Zero Halogen (LSZH) type. The Contractor shall provide composite cable containing a mix of multimode and monomode fibre (six multimode, six monomode). Multimode fibre may be 62.5/125 micron ( the industry standard) or 50/125 micron (becoming more popular). Cable must be distant compliant for Gigabit Ethernet/Fast Ethernet. Distance limits on the cables shall be indicated by the Tender. x Service Outlets  RJ45 dual or RJ45 single,  Wall or floor mounted as required. Unshielded Twisted Pair Cable (UTP)  Link service outlets to patch panel in control room,  Identification ferrules. Fibre optic cable  Link fibre patch panels to like panels in the ware house. Patch cables  For connection of RJ45 outlets to active equipment in control room. Data cables  For connection of wall points to computer equipment.
Computer/Server/Control Room Each warehouse building shall be furnished with 9U instrument rack and the server room shall be furnished with 1 set of instrument rack to contain cable terminations and active equipments. Details instrument rack shall be as below: x x x Floor mounted, Installed feet (not castors), Sized 800 u 800 u 42U high,
-A45 of A49SIMON ENGINEERING AND PARTNERS LLC
PROPOSED ADMINISTRATION BUILDING AT BAUSHER, AIRPORT HEIGHTS x x x x x x x x x Toughened glass or plastic lockable door, With fan assisted ventilation, Power bar with at least 6 UK style 13 ampere outlets, Power connected to appropriate wall receptacle, Include RJ45 patch panel, Include SC type fibre optic patch panel, Include wire organizers, Include blanking plates, 100mm plinth for the rack.
Within the building each wall/service data outlet shall be connected via a single UTP cable to the respective computer room. In the server room, each cable shall be terminated in the RJ45 patch panel. Full eight conductor connectivity to T568B pin outs is required. Building shall be interconnected together using fibre optic cable, fibres shall be terminated in the fibre patch panel using SC connectors. There shall be two wire organizers for each group of twenty four RJ45 patch panel outlets. One will be utilized for the patch panel, the other shall be kept free for future for active equipments. Recommended termination is SC for multimode, alternatives would be considered on their merits. Patch Cables RJ45 to RJ45 stranded copper, UTP cat 6, length would really need to be determined with reference to active equipment. Engineers/Employer’s approved system to be followed to identify each end of the cables ensuring easy tracing of each cable in future. Quantity to be equal to the number of RJ45 outlets in the building. Data (drop) Cables These shall be RJ45 to RJ45 stranded copper, UTP cat 6, cable of at least 3 metres length. Quantity to be equal to the number of RJ45 outlets in the building. Complete structured cabling works shall be carried out by a specialised SubContractor approved by the Engineer and Employer and all materials shall be approved by the Engineer and Employer before being used at site. Telephone cable shall also be category 6 and the installer shall be approved by the Engineer and Employer. The cable shall be terminated on a patch panel which is to be supplied & installed on the computer system rack & shall be coordinated with centre for information system & telephone department.
MEP SPECIFICATION -A46 of A49SIMON ENGINEERING AND PARTNERS LLC
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