近期，厄特进口商为厄教育部项目求购短波发送机及相关设备，有兴趣的国内企业可直接同其联系：
Mr.Ziena G.H. ekip@eol.com.er
PART II
TECHNICAL SPECIFICATIONS
1. SCOPE OF WORK
MAIN PLAN
This specification defines Department of Adult and Media Education’s requirement for 10KW SHORT-WAVE TRANSMITTER and ASSOCIATED EQUIPMENT. The Specification also covers installation, commissioning and training for the specified equipment.
Equipments and Services covered by this specification include:
a) ONE SHORT-WAVE 10KW AM BROADCASTING TRANSMITTER.
b) ONE DUMMY LOAD: FOR DESSIPATION OF 10KW CARRIER PLUS 100% MODULATION, USED AS A DUMMY ANTENNA FOR THE TEST AND THE
ADJUSTMENT OF A SHORT WAVE TRANSMITTER.
c) ONE SHORT RANGE BROADBAND, OMNIDIRECTIONAL SHORT-WAVE ANTENNA.
d) ONE 50 OHMS UNBALANCED, 200 METERS RF FEEDER CABLE, CAPABLE OF 10KW CARRIER PLUS 100% MODULATION CONTINUOS.
e) ONE PROGRAM INPUT CONTROL, STANDBY STUDIO AND MONITORING EQUIPMENTS.
f) STUDIO TRANSMITTER LINK (STL):
- ONE VHF TRANSMITTER OF 10W OUTPUT POWER (SOLID STATE TYPE)
- ONE MATCHING VHF RECEIVER (SOLID STATE TYPE)
- TWO DIRECTIONAL VHF ANTENNAS
- ONE 150M. LOW-LOSS FOAM DIELECTRIC FEEDER CABLE WITH 6 N-TYPE MALE CONNECTORS.
g) ONE AUTO-START STANDBY DIESEL GENERATOR.
h) COMPLETE INSTALLATION MATERIALS FOR THE INSTALLATION OF THE OFFERED 10KW TRANSMITTER AND ASSOCIATED EQUIPMENT, ONE TOOL KIT AND MEASURING INSTRUMENTS.
i) SPARE PARTS ENCLUDE:
ELECTRON TUBES, SPARE MODULES, SEMICONDUCTOR DEVICES AND
CONSUMABLE UNIT FOR THE OFFERED TRANSMITTER, SPARE PARTS
FOR THE OMNIDIRECTIONAL HF ANTENNA AND AUTO-START
GENERATOR FOR AT LEAST 5 YEARS.
j) COMPLETE INSTALLATION & COMMISSINING OF:
10KW SHORT-WAVE TRANSMITTER AND ASSOCIATED EQUIPMENT INCLUDING STL VHF TRANSMITTER, VHF RECEIVER, AUTO-START DIESEL GENERATOR ON TURNKEY BASIS.
k) SITE TRAINING FOR BROADCAST TECHNICIANS FOR A PERIOD OF 2 WEEKS.
APPLICATION AND GENERAL STATEMENTS
I. The 10KW Short-wave transmitter and associated equipment shall
be installed in the Adult and Media radio station situated around Asmara city to provide high quality AM radio broadcast services all over Eritrea. Moreover the STL VHF transmitter and receiver will be installed at the radio studio site in the center of Asmara and in the broadcasting station 10miles far from the radio studio respectively.
II. In the same radio station an exiting 10KW MW transmitter is
operating at frequency 1089 KHz. The Tenderer shall submit
comments as to the level of interference to be expected with the offered
equipment and propose means of reducing such interference to meet
specification limits.
III. The Department of Adult and Media Education will be responsible
for Civil Works, AC mains electricity from the local authority in
Asmara.
IV. Standard production equipment designed to conform to recognized
FREQUENCY UTPUT CIRCUIT OF TX : 50Ω + 10%.
2.3.3 THE TYPE OF RESISTOR SHALL BE NON-INDUCTIVE
MAT RESISTOR.
2.3.4 COOLING SYSTEM OF THE DUMMY LOAD SHALL BE
FORCED-AIR COOLED.
and acceptable International standards are required.
V. The Supplier shall list the Companies / Administrations (with proof)
which use the same type of equipment as offered.
2. TECHNICAL SPECIFICATIONS OF INDIVIDUAL EQUIPMENTS
2.1 10KW SHORT-WAVE TRANSMITTER
2.1.1OPERATING FREQUENCY-------------------------------------- 6095 KHz DAY TIME
6145 KHz NIGHT TIME
2.1.2 CARRIER OUTPUT POWER------------------------- 10KW
2.1.3 TYPE OF EMISSION-----------------AMPLITUDE MODULATION (A3)
2.1.4 TYPE OF MODULATION----- HIGH LEVEL PLATE MODULATION
2.1.5 RF OUTPUT IMPEDANCE---------------------- 50 ohms, UNBALANCED
2.1.6 PERMISSIBLE VSWR---------------------------- < 2:1 WITH THE RATED
POWER
2.1.7 MODULATION CAPABILITY-------- 100%, 50-5000Hz SINUSOIDAL
2.1.8 RF HARMONICS & SPURIOUS -- <-63dB or <50mw(CCIR.RECOM.)
RADIATION
2.1.9 CARRIER SHIFT----------------------- <3% AT 100% MOD. XCLUSIVE
OF POWER LINE VARIATION.
2.1.10 RESIDUAL CARRIER NOISE-------- 56dB below 400 Hz,unweighted,
100% MODULATION
2.1.11 RF FREQUENCY STABILITY----------------------- 1x10 -7 per year
2.1.12 AUDIO INPUT LEVEL------------------------------- - 4dBm to + 10dBm at
1000Hz 100% MOD.
2.1.13 AUDIO INPUT IMPEDANCE----------------------- 600Ω, BALANCED
2.1.14 AUDIO FREQ. RESPONSE-------------------- + 1 dB, RANGE 50 to
5000Hz REF. at 1000HZ
MOD. between 30%& 80%
2.1.15 AUDIO FREQ. DISTORTION----------------- <3%RMS, 50-5000Hz AT
90% MODULATION.
2.1.16 OVERALL EFFICIENCY----------------------- 60-70% AT CARRIER &
ANY MODULATION.
2.1.17 ALTITUDE--------------------------------------UP TO 2400M above sea level
2.1.18 POWER FACTOR----------------------------- COSǾ > 0.95
2.1.19 COOLING SYSTEM-------------------------- FORCED AIR-COOLING
2.1.20 POWER INPUT------------------------------- 380V, + 10%, 3PHASE, 50Hz
2.2 SHORT RANGE BROADCAST SHORT-WAVE ANTENNA.
Ideally, the HF Broad band omnidirectional short range broadcast antenna shall have the capability of handling 10 KW carrier power plus 100% modulation to insure high signal to noise ratio at the receiver and produce radiation at high elevation angles with the majority of energy directed overhead. Broadcast coverage shall be in the approximate range from 0 to 600KM from the transmitter station.
The antenna shall be high quality, exhaustively tested components with high efficiency and low VSWR.
2.2.1 FREQUENCY RANGE------------------------------------- 3 – 15MHz
2.2.2 RADIATION PATTERN----------------------------- OMNIDIRECTIONAL
2.2.3 POLARIZATION----------------------------------------- HORIZONTAL
2.2.4 GAIN--------------------------------------------------------- 8dBi (NOMINAL)
2.2.5 INPUT IMPEDANCE------------------------------------ 50Ω, UNBALANCED
2.2.6 VSWR---------------------------------------------------------- 2.0:1 MAX.
2.2.7 POWER RATING---------- 10KW AM CARRIER PLUS 100% MOD.
(15KW AVERAGE/40KW PEAK)
2.2.8 CONSTRUCTION------------------------ HOT DIP GALVANIZED STEEL
2.2.9 DESIGN STANDARDS-------------------EIA SPECIFICATIONS RS222C
FOR LOADING OF 160KM/H
2.2.10 EXTREME WIND SPEED----------------------------------- 220KMPH
2.3 DUMMY LOAD
2.3.1 CAPABLE OF CONTINOUS DISSIPATING THE FULL RATED
OUTPUT POWER OF TRANSMITTER MODULATED TO A DEPTH
OF 100% AT ANY FREQUENCY WITHIN THE TRANSMITTER’S
RANGE.
2.3.2 THE DUMMY LAOD SHALL PRESENT RESISTIVE LOAD TO
THE RADIO
7. AUDIO PROCESSOR --------------------------------------------------------------------------------------------- QTY - 1
8. REEL AUDIO TAPE RECORDING DECK ------------------------------------------- QTY – 2
STUDER A807 MKII -1 VUK
9. CASSETTE AUDIO TAPE RECORDING DECK --------------------------------- QTY – 2
TASCAM 122 MKIII
10. TELEPHONE HYBRID ------------------------------------------------------------------------------------ QTY – 2
11. BROADCAST CONTROL DESK-------------------------------------- QTY - 1
(6 CHANNEL AUDIO MIXER)
2.4.1 P.I.E RATING
2.4 P.I.E. CONTROL, STANDBY STUDIO & MONITORING
EQUIPMENTS.
This equipment is composed of as following units:
1. 19’’ STANDARD CABINET; PREWIRED, WITH MAINS INPUT
PANEL, ANGLES TO INSTALL ELECTRONIC MODULES, BLANK
PANELS ---------------------------------------------------------------------------------------------------------------------- QTY - 1
2. TWO CHANNEL EQUALIZING AMPLIFIER-------------------------- ------------- QTY – 1
3. TWO CHANNEL AUDIO LIMITTER / COMPRESSOR WITH
TRESHOLD ADJ, GAIN ADJ., LEVEL DISPLAY ETC.---------- QTY - 1
4. DISTRIBUTION AMPLIFIERS ---------------------------------------------------------------------- QTY - 3
5. MODULATION MONITOR AM- 90 / EQUIVALENT-------------------------QTY – 1
6. MONITORING AMPLIFIER WITH SPEAKER AND PPM AUDIO
LEVEL METER ----------------------------------------------------------------------------------------------------- -- QTY - 2
2.4.1.1 NUMBER OF INPUTS:
1. Input Level (at 100% modulation), impedance.
A. PGM – 1 (LINE) input: 0dBm, 600Ω balanced.
B. PGM – 2 (STL) input: 0dBm, 600Ω balanced.
C. PGM – 3 (STUDIO) input: 0dBm, 600Ω
balanced.
2. Monitor Input.
A. TX MON 1 input: +4 dBm, 600Ω balanced.
B. TX MON 2 input: +4 dBm, 600Ω balanced.
2.4.1.2 NUMBER OF OUTPUTS:
A. OUTPUT 1: 0 dBm , 600Ω balanced.
B. OUTPUT 2: 0 dBm, 600Ω balanced.
2.4.2 P.I.E. PERFORMANCE:
2.4.2.1 Frequency response: + 1 dB, 50Hz -15KHz.
2.4.2.2 Distortion factor: < 0.5%
2.4.2.3 Signal to Noise ratio; > 65 dB
2.4.3 POWER SOURCE: single-phase, AC 220V +- 10%, 50Hz
2.5 STL VHF TRANSMITTER
2.5.1 FREQUENCY--------------------------------- 310 MHZ
2.5.2 TYPE OF MODULATION----------------- SOLID STATE, DIRECT FM,
FREQ. SYNTHESIZED,
CRYSTAL REFERENCED.
2.5.3 RF POWER OUTPUT--------------------- 10WATT MINIMUM
2.5.4 INPUT IMPEDANCE---------------------- 50Ω, TYPE ‘N’ FEMALE
2.5.5 DEVIATION FOR 100% MODUL. ----- +40KHz (MONAURAL)
2.5.6 FREQUENCY STABILITY-------------- > 0.00025%, FROM 0oC-50 oC
2.5.7 SPURIOUS & HARMONIC EMISSION------- < - 60dB BELOW
CARRIER LEVEL
2.5.8 SIGNAL-TO-NOISE RATIO ------------------------------------ > 70 dB BELOW 100%
MODULATION.
2.5.9 THD and IMD ------------------------------------------------------ 0.2% / LESS, 30Hz TO 15KHz.
2.5.10 MODULATION CAPABILITY-------------- ONE PROGRAM
2.5.11 MODULATION INPUT----------------------- +8dBm, 600Ω, balanced,
Monaural.
2.5.12 METERING----------- CALIBRATED RF WATTMETER FOR
FORWARD & REFLECTED POWER, AUDIO
OUTPUT LEVEL, DC SUPPLY
VOLTAGE, P.A. CURRENT, ETC.
2.5.13 POWER INPUT--------------------- 240VAC, + 10%, 50Hz (single phase)
2.6 STL VHF RECEIVER
2.6.1 FREQUENCY -------------------------------------- 310MHz
2.6.2 SENSITIVITY----------------------------------------- 20μV for 60dB SNR
2.6.3 SELECTIVITY------------------------------------ 3dB IF bandwidth + 90 kHz
2.6.4 INPUT IMPEDANCE------------------------------ 50Ω, TYPE N FEMALE
2.6.5 AUDIO OUTPUT---------------------------------- + 10dBm, 600Ω balanced,
Monaural
2.6.6 FERQUENCY STABILITY---------------------- + 0.00025%, 0oC-50 oC
2.6.7 SIGNAL-TO-NOISE RATIO ------------------------------------ > 70 dB below 100%
MODULATION.
2.6.8 METERING ---------------- RF SIGNAL LEVEL, AUDIO OUTPUT
LEVEL. DC SUPPLY, LOCAL
OSCLLATOR LEVEL etc.
2.6.9 POWER INPUT----------------------- 240 VAC, + 10%, 50Hz (single phase)
2.7 ANTENNAS FOR STL VHF TRANSMITTER & RECEIVER
ANTENNA TYPE ------------------------------------ DIRECTIONAL
2.7.1 FREQUENCY ----------------------------------- 310 MHz
2.7.2 IMPEDANCE------------------------------------- 50Ω, UNBALANCED
2.7.3 VSWR---------------------------------------------- < 1.5
2.7.4 GAIN----------------------------------------------- 12dBd
2.7.5 POLARIZATION-------------------------------- HORIZONTAL
2.7.6 RADIATION PATTERN-----------------------UNI-DIRECTIONAL
2.7.7 REAR SIGNAL REJECTION------------------ > 25dB
2.7.8 POWER RATING-------------------------------- 100WATTS
2.7.9 CONNECTORS---------------------------------- TYPE ‘N’ FEMALE
2.7.10 LIGHTING PROTECTION ------------------ ALL PARTS GROUNDED
2.8 AUTO-START STANDBY DIESEL GENERATOR
The power supply from Electric Authority of Eritrea frequently fails, therefore radio listeners of the Adult and Media Education radio station are always complaint. To avoid complaint of our radio listeners and broadcast our radio programs uninterrupted, we need standby auto-start diesel Generator to supply electric power to the 10KW Short wave and the existing 10KW Medium wave Transmitters.
TECHNICAL INFORMATION
2.8.1 INVIRONMENTAL CONDITIONS
ALTITUDE 2400 meters above sea level.
AMBIENT TEMPERATURE 35°C
RELATIVE HUMIDITY 90%
2.8.2 TECHNICAL DATA
OPERATING CYCLE FOUR STROKE
COOLING MODE WATER COOLED
FUEL DIESEL
OUTPUT POWER 40 KW AT SITE
OUTPUT VOLTAGE 380/220 VOLTS (3 PHASE
4 WIRE SYSTEM.)
FREQUENCY 50 Hz
SPEED 1500 RPM
VOLTAGE REGULATION <2%
POWER FACTOR 0.8
2.8.3 CONTROLS AND INSTRUMENTS
AC VOLTMETER FUEL PRESSURE GAUGE
AC AMMETER COOLANT TEMP. GAUGE
FREQUENCY METER RUN HOUR METER
VOLTAGE ADJ. REOSTAT OIL PRESSURE GAUGE
VOLTMETER PHASE SELECTOR
AMMETER PHASE SELECTOR
2.8.4 PROTECTION DEVICE
LOW OIL PRESSURE
HIGH COOLANT TEMPERATURES
OVER SPEED
EMERGENCY STOP
2.8.5 REQUIREMENTS
1. AUTO START WITH MAINS FAILURE.
2. DELAYED SHUTDOWN MECHANISM (5-10 minutes)
AFTER MAINS POWER RETURNS.
3. POSSIBILITY OF MANUAL START.
4. AUTOMATIC VOLTAGE REGULATION & FULLY
PROTECTED.
3. AVAILABILTY OF SPARE PARTS FOR AT LEAST 10 YEARS.
4. SERVICE , OPERATION & SPARE PARTS MANUALS TO BE
PROVIDED.
3. EQUIPMENT DESIGN AND INSTALLTION PRATICES
3.1 GENRAL REQUIREMENTS
3.1.1 OPERATIONAL AVAILABILTY
i) As the proposed Radio Station is required to provide high quality Radio broadcasting service for many hours a day, an operational availability of better than 99% is expected.
ii) The Contractor shall design and manufacture his equipment to ensure that the continuity of service objective for the station can be achieved. The design and manufacturing practice and components selected for use in the equipment shall be of the best quality available.
3.1.2 Mean Time Between Failures
The Contractor shall state the Mean Time Between Failure (MTBF) which he expects to achieve from the items of equipment, which he intends to supply under this contract when used in their normal operating environment. All broadcasting equipments shall in general be designed to meet the above availability.
All equipment shall be designed to provide a MTBF of not less than 10,000hrs.
3.1.3 Mean Time to Repair
The contractor shall state the Mean Time to Repair (MTTR) which he expect to achieve for all items of equipment which he intends to supply under this contract.
3.1.4 Design Life
The design lifetime of all equipment supplied as part of this contract shall not be less than 20 years from the date of Certification of Final Acceptance.
3.1.5 EQUIPMENT
1. The requirements of this Specification shall be met by all equipment provided by the Contactor. Where redundancy or alternative equipment configuration is provided, the requirements of this Specification shall be met with all possible equipment arrangements.
2. All air dielectric coaxial cables and feed systems shall be pressurized with dry air to prevent corrosion and variation of attenuation with humidity.
3. The Contractor shall state the type of cooling to be used for all equipment supplied.
4. The equipment offered shall complete in every respect to provide the working installation, and include all necessary for operation & testing.
5. The equipment shall have comprehensive supervision control and equipment production system with illuminated state signals for all important operating and fault conditions.
6. The equipment shall have individual instrumentation for all important function such as electron tube functions, forward power, reflected power, rectifier o/p voltage etc.
3.1.6.Reliability
I. The Contractor shall ensure that his equipment unit are designed and installed to a high reliability (i.e. a low equipment fault rate) and to require minimal maintenance effort.
II. The equipment shall be designed for continuous operation.
III. The provisions of the Specification shall apply to all equipment supplied for use on the Radio Station.
3.1.7 Equipment Module
I. All modules supplied as part of a system shall be clearly marked and labeled in English in order to facilitate fault finding and maintenance.
II. All equipment shall be of such design and construction that any unit or sub- unit can be removed without disturbing any other unit or sub-unit.
3.2 Safety Requirements
I. The equipment shall have automatic personnel protection system in accordance with IEC 215 Specification.
II. International standard for protection against radiation shall be applicable .
3.3 Electrical Noise
I. Each type of power supply generates electrical noise, whether it be at audio or radio frequencies. The contractor shall provide details of all limitation applying to electrical noise on AC power supplies which would affect the operation of the equipment supplied.
II. The Contractor shall be held responsible for overcoming the effects of any electrical noise due to, or generated within the equipment he supplies.
3.4 Grounding
I. Lightning conditions occur frequently during the summer season. Grounding and bonding lightning protection measures shall be under taken by the Contactor.
II. All metal frame, cases, supports, all metal switch handles and such similar parts of the equipment shall be efficiently connected to earth
and substantial grounding arrangements shall be provided for this
purpose.
III. In general, the grounding system and electrical installation should ensure total system protection from all possible causes.
3.5 Environmental Conditions
3.5.1 The equipment shall operate as specified under the following conditions.
Altitude …………………………… up to 2400 meters above sea level.
Temperature ……………………… 0 o C – 40 o C
Humidity …………………………. 95%
3.5.2 Dust
Sites may be dusting and, although of a non metallic nature, the dust is frequently abrasive, equipment shall have full protection against dust. That is appropriate method of Ingress Protection (i.e. IPXX) against both dust and moisture should be taken into consideration to fulfill safe operation of all equipment.
4. PROJECT MANAGEMENT
4.1 PROJECT SUPERVISION
I. The Department of Adult & Media Education will appoint a project co-coordinator who will be responsible for all contractual, financial and reporting matter.
II. The Department of Adult & Media will appoint a project Engineer on site, who will represent in day to day matters, and who will have the power to reject any thing which, in his opinion, does not conform to the terms of the contract or to an acceptable standard. In such circumstance the Contractor staff shall take immediate remedial action without cost to Purchaser.
4.2 Control of Progress of 10kw SW Transmitter and Associated Equipment
Contract.
I. The Contractor shall appoint a Project Manager, who shall be responsible for all aspects of the Contract through the entire contract period and who shall have a high command of technical skill for the preparation of the progress reports called for in this Specification.
II. The method of progress control adopted by the Contractor shall be effective in quickly overcoming to any delays on the date of Provisional Acceptance.
III. The Contractor shall submit a copy of detailed Flow Diagram showing events and activities upon which work planning has been based and clearly defining the critical path. The flow diagram shall be revised during the progress of the contract whenever changes occur in the forecast pattern of work. A copy of the revised diagram shall be supplied to project coordinator of the Purchaser.
IV. For purpose of monitoring progress, the information contained in the flow diagram shall also be presented by the Contractor in the form of Bar chart. Related activities shall be sequenced where convenient but each activity shall be individually marked and identified. Related activities shall be sequenced where convenient but each activity shall be individually marked and identified. The format of the Bar Chart shall indicate:
a) The forecast start and completion date of each uncompleted activity.
b) The percentage of work compelled within each activity.
c) The independent float of each activity.
d) The events forming the critical path.
The scale of the chart shall be adequate to enable duration of 1day to be identified.
The Contractor shall keep the Project coordinator informed of any situation which is likely to cause a delay in either the manufacturing or installation phase of the Contract.
4.3 PROGRESS REPORTS
I. The Contractor’s Project Manager or Site Manager shall submit a weekly Site progress report to Project Coordinator of the Purchaser.
II. The weekly report shall detail the progress that has been made during the past 7 days and shall also note important events in the coming weeks.
III. The weekly report shall be submitted to Project Coordinator of the Purchaser each week from the commencement of work on site until the Date of Provisional Acceptance.
5. TESTING AND COMMISSIONING
5.1 PURPOSE
Testing and commissioning are required to:
a) Demonstrating that items meet their Specifications.
b) Demonstrate that the 10kw SW Transmitter and complete Radio Broadcasting Systems meet their Specification and design figures.
c) Provide a record of initial performance for subsequent use by maintenance staff.
5.2 Testing Records
All test records shall be clear, legible and complete. Test records shall be signed in full by those performing and witnessing the tests and the names of those persons shall be printed below their signatures. Test records shall be dated.
5.3 Testing Equipment Calibration
All test equipment used for the tests called up in Para. 5.4 of this Specification shall be controlled, calibrated and maintained as called for in ISO 9000 or latter.
5.4 Type of Test
Three types of test are required.
a) Factory Acceptance Tests.
b) Pre-commissioning
c) Commissioning Acceptance Tests.
5.4.1 FACTORY ACCEPTANCE TESTS
a) The Manufacturer shall submit all equipment to his standard final factory tests, with the purpose of proving that the equipment meets the requirements of its specification. A full set of test results for all items shall be supplied to Purchaser on or before delivery of the equipment.
b) The Purchaser reserves the right to appoint a representative to inspect the equipment at any of the Factory Acceptance Tests. Such inspection shall not relieve the Contractor of his responsibility for meeting all the requirements of the various specifications, and it shall not prevent subsequent rejection if the equipment is later found to be defective. Equipment shall not be dispatched from the factory until it has passed its Factory Acceptance Test.
c) The Contractor shall ascertain, in writing, whether or not inspection or witnessed tests, or both, are required. He shall then give the Purchaser not less than fourteen days notice of when the equipment will be ready for inspection or for witnessed testing as requested.
5.4.2 Pre-Commissioning Tests
After installation, the Contractor shall perform in station, and link tests to verify that equipment is still within specification and that the overall systems and sub-systems meet Purchaser’s requirements and the appropriate specifications. Only when the Contractor has satisfied himself that the Pre-Commissioning Test results are acceptable shall he request Purchaser’s presence at the Commissioning Acceptance Tests.
5.4.3 Commissioning Acceptance Tests
These tests are a formal demonstration to Purchaser that the requirements of all applicable specifications have been met. Testing shall be carried out only in the presence of a formally nominated Purchaser representatives. Such representation will then sign the test result sheet to confirm the correctness of the test procedures and results.
The tests shall be carried out in accordance with a Commissioning Acceptance Test procedure and schedule, produced by the Contractor and agreed in advance by Purchaser.
No system will be accepted for final payment until the Commissioning Acceptance Test results have been approved.
5.5 Test Failure
In the event of any Commissioning Acceptance Test results being rejected by the Purchaser, the discrepancy shall be investigated by the Contractor and a report submitted to the Purchaser. Once the matter has been satisfactorily resolved another series of the relevant Commissioning Acceptance Test shall be performed.
6. GENERAL REQUIREMENTS
6.1 DOCUMENTATION
All documentation supplied throughout the contract shall be subject to configuration management. The Contractor shall provide details of his configuration management system.
6.1.1 Equipment Handbooks
a) Handbooks (instruction Manuals) are required for each piece of equipment. They must be sufficiently comprehensive to enable a competent technician to identify each component, test point and terminal and to check supply voltages and signal voltages/signal conditions throughout the module/unit /equipment.
b) All critical voltage and voltage limits shall be indicated on the circuit diagrams or included in the text. All signal levels shall be similarly detailed, together with permissible limits for satisfactory operation of the equipment.
c) A list of Factory Acceptance Test shall be provided, intended to prove compliance with the specification, and the method of performing each test.
d) A list of equipment commissioning tests is also required. This list shall include the method of performing each test, and shall detail that the type of test equipment needed to perform the test. Limits for satisfactory operation in compliance with the specification shall be indicated, together with the instruction for adjustment where appropriate.
e) Factory acceptance and commissioning tests may form part of the handbooks or may be separate documents.
f) Any errors discovered in the handbooks shall be corrected by the contractor and amendments sent to the Purchaser to ensure that all copies issued are updated.
6.1.2. Station Handbooks
The Contractor shall provide a Station Handbook unique to the station in a project. This handbook shall provide “as built” documentation, such as wiring interconnection tables or drawings, dimensioned sketches of equipment layouts, antenna locations and directions and similar information.
6.1.3 Copies of Handbooks
One complete set of handbooks for all equipment at a station shall be provided and left at the station, together with the Station Handbook, on completion of the installation. In addition, one set of all equipment handbooks and one set of all subsequent Station Handbooks shall be delivered. Additional copies of equipment and Station Handbooks will
be ordered as required.
6.2 SPARES
6.2.1 The contactor shall provide a priced spare breakdown for each item of
equipment. The level of breakdown shall be compatible with the
maintenance policy of field replacement of faulty sub-units or modules.
6.2.2 The contractor shall also detail the initial spares holding he considers the
Radio Station should purchase to cover the first 5 years of operation of
the equipment included in a particular project design. This list shall take
into account the repair turn around time. A second list shall be provided
for any long term spare that the Contractor considers necessary.
6.3 TOOLS
6.3.1 The Contractor shall supply a list of the special tools, connector cords, outriggers, etc. that he considers necessary to perform on-site maintenance and fault finding on various equipment.
6.3.2 One set of appropriate tools and measuring instruments etc. shall be
supplied to the station.
6.4 TRAINING
6.4.1 Training courses for broadcast technicians for a period of two weeks
shall include both theory and practical on installation and maintenance
of the offered equipments.
6.4.2 Training Courses shall result in the Radio Station’s technicians.
a) Becoming thoroughly familiar with the basic operation and composition of the equipment.
b) Being able to quickly identify and replace a fault unit, sub-unit modules etc.
c) Being able to carry out all standard routine maintenance.
d) Understanding fully the operation of various equipment.
e) Being fully aware of all faulty manipulation, which could put the system out of operation or introduce serious system degradation.（驻厄立特里亚使馆经商处）
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