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Tender > 2005-06





India Trade Promotion Organisation

(Electrical/A.V. Unit)




371-ITPO(19)AV/2008-09/  
Dated: 13.06.2008



Details of Scheme for Public Address System in Pragati Maidan, New Delhi.


Details of Scheme for Public Address System in Pragati Maidan, New Delhi.

A 1. General P.A. system for the whole of fair area
This P.A. System is meant to play back of soft recorded music to cover all the open areas and roads and serve as paging system as well as for making announcements regarding lost and found articles and children and for urgent dissemination of information to participants, visitors and other functionaries of the fair as required.

2. Central Control Room
The Central Control Room is located in a room adjacent to Central Control Room in Hall No.1. All equipment like mikes, amplifiers, CD players, tape players etc. will be located in this Control Room. Adequate electrical power will be available at this point.

3. Microphone Booth
A booth has been provided in the Central Control Room with an alternate arrangement to be made in Central Security Room (Pragati Maidan).

4. Speakers
These shall be reflex horn loud speakers/speaker column (weather proof) are to be mounted on light poles and other fixtures to cover areas of concentration of visitors in the fairs. Approximately 150 Nos. of such loud speakers are required, each of 15/25 watts. The successful tenderers have to provide the HORN/COLUMNS speakers as approved by department, ITPO.

5. Cabling
All cabling works between output of amplifiers and speaker. The loud speakers shall be underground. PVC insulated PVC sheathed copper conductors of adequate rating may be used and buried underground at a depth of at least 12” or laid in pipes/ducts wherever available.

6. Cabling Under Roads
Some pipes have been provided for taking the cabling across roads at selected points.

7. Scheme for over Riding Music with Announcements
Relay system to cut off music being played over the system by means of a switch in the announcer booths shall be provided. Monitoring speakers for music also to be provided in the booth. These speakers to be cut off by means of over riding switch at the time of making announcements. On pair of headphones to be provided for the announcer to monitor while making announcements.

8. All the horn loud speakers/speakers column (weather proof) are to be mounted on light poles/building are required an as approved by the ITPO.

9. Period Operation of System
All installations to be completed and tests carried out to the satisfaction of the ITPO. The General P.A. system have to start functioning for one year from the date of award letter from 10.00AM to 08.00PM daily.

10. Scope of Work for General P.A. System for the whole Fairs
i) Providing and laying underground all loud speakers/columns (weather proof) cabling as per integrated cabling plan for the fair area.

ii) Providing all amplifiers, microphones relay system, monitoring loud speakers, racks for mounting amplifiers, cassette tape recorders/CD players etc.

iii) Installation of the above:-

iv) Complete maintenance and operation of all equipment installed and cables laid and providing necessary personnel for the same during the contract period.

v) Supply of detailed scheme with block diagrams for the installation to be carried out, showing details of all equipment, distribution network etc. and detailed specification of all equipment and materials proposed to be used. A sample of the reflex horn/speaker column loud speakers proposed to be used complete with shall be produced along with the tender.

vi) Dismantling and removal of equipment and material used within 20 days after issue of notice for the same.

11. Suggested details of Technical Specification of Equipment.

(i) Horn loud speakers reflex type/speaker columns15/25 watt complete with matching transformer in presentable condition. Sample of one horn loud speakers/speaker column (weather proof) with clamping arrangement shall be produced alongwith the tender in a sealed card board box which shall be opened at the time of opening of price bids.

(ii) Microphones These shall be of low/high impedance with its own preamps at the announcer booth. Each mike unit with chime unit shall have its relay unit for cutting off of music being played on the system for over riding announcements as well as cutting off of the monitoring loud speakers in the booth, if required.

(iii) Preamplifiers There should have sufficient no. of inputs to match output of the mikes, two cassette players & two CD players. The output impedance and level of the preamplifiers to match input of boosting amplifiers. The unit should have its own trable and bass control of requisite range.

(iv) Booster Amplifiers These may be of transistor type or I.C./Chip typeand shall be in units of about 200 watts output. The total installed capacity of all the output of all units not to be less than 1000 watts. Each booster amplifier shall have its own bass and trable control alongwith volume control. Output to be fed on distribution line at 100V to match the number any type of loud speaker connected to each distribution line.

(v) Distribution of Outputs A distribution board shall be provided in the Central Room for checking of audio output of each amplifier. A meter of appropriate range with selector switch shall also be provided for check up of levels in various distribution lines.

(vi)Noise, Distortion & Frequency Response Reasonable flat frequency response over the system in the audio range with negligible distortion and noise. There shall be no rattling noise in the loud speakers.

(vii) Underground Cabling All cabling for loud speakers/columns; mikes etc. shall be underground. Sufficient sleevings have been provided for crossing all roads. Cables may be of weather proof quality or PVC insulated and the cabling should confirm to the general level alongwith the sides of the road as required.

(viii) In the event of pick up of hum & noise in some circuit isolating transformers shall be incorporated in the circuit of cables re-laid as required.

(ix) Adequate quantity of amplifiers, loud speakers/ speaker columns (weather proof), cables and other items used in the installation shall be maintained at the fair site for quick replacement of defective items, if necessary. A penalty of Rs.50.00 will be imposed on non functioning of speaker @ Rs.50/- per day per speaker.

B. Public Address System for Hamsadhwani Theatre
This is meant to cover inaugural and closing functions and other cultural programmes to be staged. The system will need a preamplifier with 8/10 mikes input channels, playback arrangement for CD and tape and amplifier of adequate capacity preferable 2000 watts to feed four number of high efficiency cabinet loud speakers of 500 watt each or column loud speakers and a monitor on stage to meet the requirement. A sound room with locking arrangement will be available to install and store all the equipment. The amplifier should be such as to work on battery as a standby in the event of a failure of power supply. C. Disc and tape players to be provided as required. Out put to be provided for recording on tape as required. The dates and timings for the above will be intimated well from time to time in advance.

C. P.A. System for Shakuntalam Theatre
Same as for Hamsadhwani Theatre except that the capacity of L/S and amplifiers preferably 1000 watt to be limited provide good listening quality inside the hall for music and dance programmes, seminars etc. to be held in the hall. Stereo mixer is also required to be provided.

D. P.A. System for Falaknuma Theatre
Same as for Hamsdhwani Theatre except that the capacity of L/S and amplifiers to be limited to provide good listening quality for music and dance programmes etc.

E. P.A. System for Lal Chowk Theatre
Same as of Shakuntalam Theatre.

F. P.A. System for Shringar Theatre
Same as of Shakuntalam Theatre.

G. P.A. System for Kadambri/Amphi Theatre at Crafts Museum
Upto four microphones with two horn or speaker column with associated amplifiers with adequate wattage to be provided.

H. Localised P.A. System
There are to be installed at various points and around the fair ground for traffic control, car calling etc. as required.

(i) Broad Requirement
Each unit of this P.A. system shall consist of a 50/75 watt amplifier to which shall be connected 2/4 numbers of 15/25 watt horn type loud speakers. The amplifiers are to be located at a convenient place at the point required. Loud speakers shall be mounted on poles and connected to the amplifier, power supply 230V/50 cycles will be provided at most of the points. In case it is not possible to provide the same of required power backup to be provided by the party.

(ii) The number of such units required are expected to be about five and locations will be intimated as and when required.

(iii) Operational personnel shall be provided with each unit.


I. Conference System
This system consists of High sensitivity goose neck microphone and housings with built in amplifier and speakers in each unit to be connected in loop with power supply etc.

J. D.I.Box
This should be required for the Press people or for distributing Audio output.

K. Interception Sound System
This system shall be required during fair time to relay the announcements/music relayed on general P.A. system in respective halls and vice-versa.

L. Other Conditions of Tender
(i) All work connected with the installation of P.A. system shall be coordinated with other cabling and construction works in progress in the fair and parking areas.

(ii) The successful tender shall be fully responsible for the security of all items of equipment, cabling etc. installed by them and no claim for loss, damage etc. of items belonging to tenderer shall be entertained by the India Trade Promotion Organization.

(iii) The successful tenderer shall be responsible for the good conduct of all staff employed by him and ITPO shall not be responsible for payment of any compensation in the event of accident to the tenderer or his staff in the course of their performing their duties connected with the above work.

(iv) All the works carried out and the service render shall be to the satisfaction of the General Manager(Works), ITPO. In case of unsatisfactory service the quantum of penalty is imposed by the General Manager shall be final and binding on the contractor.

(v) The ITPO reserves the right to reject any or all of the quotations/tenders received without assigning any reason.

(vi) The ITPO reserves the right to make changes in the scope of the work after receiving the tenders/quotations.

(vii) The dates on which the various services in theatres are required will be communicated to successful tenderer from time to time.

(viii) The general P.A. system may be required for a period from date of award letter and the tenders/quotation has to be valid for the above period.

(ix) All branded equipment amplifiers, mixers, microphone etc. are to be installed only.

(x) All recorded music tapes/CD’s with prior approval of ITPO to be provided by the party for playback on General P.A. system. The tapes/CD’s are required to replaced after regular intervals.

(xi) The tenderer will have to accept all the works asked by ITPO and any refusal or delay in implementation would invite termination of contract without any notice.

(xii) The tenderer should always be prepared to provide facilities at a short notice and as such sufficient stock of equipment should always be maintained.

(xiii) In the event of any breach of contract condition. The contract can be terminated without any notice and without any liability on ITPO




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