interior works at evelyn house, apollo bunder

interior works at evelyn house, apollo bunder
TENDER NO. E. 19/2017
Scope of Work and Specifications:
Description and Scope of Work : The work under the proposed project is
installation and commissioning of ISDN EPABX system.The System will comprise
ISDN capable EPABXs in Configuration with the entire System operated and
managed as essentially a single System.
The EPABX offered should have the valid approval of TEC and a copy of
approval certificate should accompany the quotation.
Armoured PIJF Telephone Cables( 100/50 PAIR / 20 PAIR) :
Cable Specifications :
Description : The cables shall be with polyethylene insulated annealed bare
copper conductor, cores colour coded, twisted in to pairs laid up, fully filled with
petroleum jelly as a water resistant compound. The filled core assembly
wrapped with polyester tape and poly aluminum laminated moisture barrier,
polythene sheathed, bedded with high density polythene tape, armoured with
galvanized double steel helical tape and overall polythene jacketed confirming to
“ITD Specifications” No S/WT-143 series and as amended up to the latest. Size
of Conductor will be as specified in Bill of Quantities. Manufacturers’ Test
Certificates as per ITD Specifications shall be submitted.
Cable supplied by Contractor : The cables shall be in standard drum lengths
as per I.T.D. Specifications and straight joints shall be avoided as far as
practicable. The rate of laying the cables shall be exclusive of cost of joints and
jointing included in the Bill of Quantities. The No. of joints in the Bill of
Quantities are based on the consideration that the cable shall be brought at site
in standard drum lengths and not in short cut lengths. The Cables supplied shall
be manufactured by one of the following Firms :
Usha Beltron
Vindhya Telelinks
The PIJF shall be fixed casing/conduit pipes on stretches.
Cable shall be laid in through straight runs without any kinks and
as far as possible without bends.
Cable and Wire Terminations : Termination of cable and wire in Krone C.T.
box/ Krone Module in MDF/ Internal Cabinet / DP Boxes shall be carried out in
an approved manner using Krone Insertion Toll Set. Identification collars
indicating pair particulars as per DP diagram shall be provided in incoming and
outgoing pairs giving clear identity of pair number.
PVC Insulated Jumper Wires : These shall be twin core having solid annealed
tinned copper conductor of size not less than 0.50 mm dia., having PVC
insulation in non-fading colours of red for one and white for the other, cores
twisted together as per I.T.D. Specifications No. S/WS-1018 or latest
Specifications. This wire is to be used for inter-connecting the cables terminated
on the Krone connectors in distribution boxes / cabinet boxes and MDF. The
supply of wires shall be of the latest manufacturer or consignment in complete
length of 100 meters coil and not in short lengths.
These shall be of adequate size to house the Krone C.T. box/ Krone
Connector Modules, etc., as specified in the Bill of Quantities with sufficient
clearance between different items and panels of the box. Sufficient space shall
be made available for inter-connecting wiring. Wherever possible the clearance
have been shown on drawing.
The boxes shall be fabricated out of 16 S.W.G. thick (1.6 mm
approx.) sheet steel. The boxes having area of more than 0.5
sq.m. shall be provided with 25x 25 x 5 mm (approx.) M.S. angle
frame work.
All the boxes shall be in folded/ welded construction complete with
mounting brackets prepared from 25 x 5 mm or 40 x 5 mm
(approx.) M.S. flat or as directed for wall or any other type of
mounting and 40 x 40 x 5 mm (approx.) M.S. angle iron frame
work for pedestal mounting. The mounting brackets and pedestal
framework shall be welded or fastened to the body of the box by
means of GI bolts, nuts and washers. The complete assembly shall
be rigid in construction.
The boxes shall have lift off type door covers with handle and as
directed with provision for locking by “Alen Key” locking
arrangements and the covers shall be either of single or double
panel pattern depending upon the size of the box or as directed to
relieve the weight of the hinges. The cover shall be water tight for
outdoor mounting and dust proof for indoor mounting.
All the sheet steel and structural parts of the box shall be given
anti-corrosion treatment and shall be finished with 2 coats of grey
enamel paint/powder coating paint or as directed. All the hardware
used for fabrication shall be given anti-corrosion treatment.
Adequate number of knockouts for entry of conduits or to take up
PVC glands of armoured telephone cables as specified with a new
extra knockouts for future use shall be provided on the top and/ or
bottom panels of the box.
The boxes of wall mounting type shall be fixed to the wall or
structure as the case may be, by means of 4 Nos. suitable M.S.
clamps prepared from M.S. flats of size 40 x 5 mm (approx.)
welded to the body. The fixing arrangement shall be either by
directly grouting the clamp or by M.S. bolts and nuts of size 150 x
12.5 mm (approx.) each or as directed.
All tests as required in accordance with the relevant regulations shall be
carried out by the Contractor in the presence of the representative of the Joint
Director. All testing instruments for this purpose shall be provided by the
Contractor at his own cost. The installation shall not be commissioned unless
the necessary tests are carried out and approved by the Joint Director or his
Cable Route Diagram: The Contractor shall also submit two copies of Detailed
Circuit Block Diagram giving Cable Particulars as laid/fixed.
The drawings to be supplied shall be prepared in consultation with the or
his representative and the cost of the same shall be deemed to have been
included in the Contractor value.
Necessary lettering on the MDF’s/Internal Cabinets / MS DP Boxes, etc.,
regarding details and connections shall also be carried out to instructions. The
cable size shall be indicated at the cable termination ends.
The MDF/ Internal Cabinets and DP boxes, etc., shall be provided with
serial numbers as directed.
To achieve an Enterprise Level Surveillance & Security System, the
vendor shall supply and commission an IP
based CCTV system with the objective to provide high degree of
surveillance system for the entire site.
The purpose is to monitor & supervise the entire area for security
purpose, as well as record and inform officials
on unwanted, untoward incidents. The hardware required for the system
including servers, workstations, monitors, networking components,
cables, connectors, conduits, power supplies etc. will be in the bidder’s
scope. It will be
the responsibility of the vendor/bidder to make the entire system fully
functional as per the specifications.
Vendor/bidder shall consider any equipment/devices required to make the
system functional if not mentioned
Scope of Work
The scope of work under this tender shall consist of design, supply,
installation, testing, training & handing over
of all materials, equipment, hardware, software applications and
necessary workmanship to commission said
system with all the required components strictly as per the enclosed
tender specifications, design details. The
scope also include the supply, Installation & commissioning of any
material or equipment including civil works
that are not specifically mentioned in the specification.
System Architecture:
Video Management System (VMS) shall be a fully digital IP-based video
surveillance system that brings together
in one system a network video recorder (NVR) with unlimited storage
capacity. As a software-based enterprise-level video and data
management system, VMS shall provide a single GUI that monitors,
records, and offers functionality to deliver the timely, accurate
information required for effectively responding to any challenge. VMS
shall be a fully
scalable enterprise-class system with centralized management capability.
VMS shall be a fully scalable enterprise class media management system.
This advanced network-based system architecture enables simultaneous
monitoring from multiple stations and is easily configurable for storage
both on and off site. The software can be
configured to store and to view images captured by one camera or
thousands of cameras and monitor connections
across an unrestricted number of servers. VMS can be designed to
effectively integrate with video equipment including NVRs, keyboards, and
cameras to leverage and protect investments in legacy infrastructure and
System Components
VMS-Client Application shall provide live video view, various video
playback support, historical video search
and playback, alarm management, Map integration and front end control
features to an operator. Client
Application shall also able to manage & control all devices depending on
the user access privileges. System
should support virtually unlimited VMS Clients and the licenses for the
same shall be included in the VMS
VMS Database Server contain a web based data management center
includes user management, facility
management system logs etc. and event & control service which receives
and controls events and commands of
various formats via different communication modes, integrating video and
access control devices. The System
shall able to support up to 1000 cameras. However the system should be
capable to expand virtually up to
unlimited number of cameras by incorporating multiple servers to make a
complete enterprise security systems.
Network Video Recorder (NVR) shall able to receive and store videos
from various front end devices and
forward to various decoders, clients applications connected to the
enterprise security system; ensuring a smooth
transmission when transmitting mass videos in various bandwidth levels.
Each NVR server shall able to support
upto 256Mbps data throughput which can take up to 64 cameras
recording @ D1 resolution. Each NVR shall be
provided with a storage chassis which should able to expand up to 20TB
RAID 5 applied and can be further
expanded upto 120 TB RAID 5 by incorporating the additional storage
System Component Description & Integration
System shall support integration of various system components as
detailed below as a minimum to create an
enterprise level Security Management System.
A. Recorders: Video Management System (VMS) shall support
integration with digital and network video
recorders (NVRs). VMS shall have the ability to access and manage
necessary functions of the recording
devices through the VMS client interface, such as live video, recorded
video, playback, camera configuration
and other associated functions. The system shall support 64 Channel NVR
at 25 fps @ D1 resolutions as a
B. Cameras: VMS shall be able to support Dome, PTZ and Bullet/Box
cameras for its functionality.
C. VMS shall have the capability to integrate with Access control system
and Intrusion systems in future.
Optionally VMS shall provide SDK for 3rd Party Systems to develop
integration with VMS.
Operational Requirements
A. VMS shall provide a single graphical user interface (GUI) to monitor,
control and administer digital video
surveillance equipment from multiple systems and platforms
B. VMS shall be configured to store and view images captured by one
camera or numerous cameras and monitor
connections across an unrestricted number of servers.
C. All the Software & hardware equipments for CCTV shall be of same
VMS Software Features:
The VMS application software shall have following major features:
Scalability: System shall be enterprise level system so that increase in
the number of cameras; number of servers
& number of Clients shall not affect the currently running system
operations & functionality.
Multi-location: System shall work on an enterprise class environment
over the TCP/IP network. The system shall
be designed on central site connected with multiple remote sites along
with the following required conditions /
System shall be capable of local recording, local monitoring and video
management at each local site. The
system ideally shall not transmit any video through remote VMS Database
Server (to optimize the WAN
bandwidth) for any local access to videos (LIVE and recorded). System
shall be capable of Video monitoring
(LIVE / Recorded), system & user management through a master central
The system shall be designed & proposed in a way that in the event of
connection failure between central
VMS Database Server & local location, system shall continue to work &
deliver the key functions at local site
i.e. local monitoring and local recording.
Open Standard Support: VMS Software shall be ONVIF compliant so
that it can integrate with multiple digital
IP cameras, multiple digital and network video recording devices.
System Integration: System shall have Integration capabilities with
electronic access control system or vice
Compression Techniques: System shall use various compression
techniques simultaneously to utilize storage and
network bandwidth effectively. Video compression techniques shall
including H.264, MPEG-4 and M-JPEG as
Multi Operations: Managing pentaplex user operations of attached
recording devices simultaneously, including
live viewing, recording, playback, and handling the exchange of data
between the server and a remote
Live View: Live viewing of up to 64 cameras on a single VMS-Client up to
D1 resolution. VMS-Client
application shall have capability to connect to 4 monitors & 16 cameras
can be viewed on one Monitor.
Alarm Management: System shall receive alarms & events from
multiple video, access and alarm devices. It
shall provide capability of Alarm & event viewing, management and
interlocking. Alarm interlock logic shall
reside in VMS Server which will trigger device to execute preset
operations on receiving of an alarm.
Reports: Log Report shall be used to search the device alarm events,
device operations, user login, and web
operation. It shall also be used to set queries to get results quickly. Log
reports shall be exported in XML, CSV,
TIFF, PDF, Web Archive and Excel file formats.
User Rights: System shall provide multi-level user access rights for
viewing and managing access to the recorder
Recording Modes: System shall support recording modes of continuous,
scheduled, manual, event and alarmbased
Network: System shall support for both multicast and unicast network
topologies and communication protocols.
Rule engine: This capability shall allow for custom scripts and to provide
both customization and third party
integration. Rules Engine Service shall provide functions such as rules
analysis, state monitoring and rules
management. By way of logical programming for various devices and
event alarms in graphical editing interface,
Rules Engine Service shall perform automatic execution of rules when
emergency occurs. The visual dynamic
user interface shall make it easy to acknowledge alarm circumstances and
allows prompt response in case on
Client Application: VMS shall provide at least Unlimited licenses as
inbuilt. System shall provide unified
VMS-Client login to users. User shall be able to login from any PC loaded
with VMS-Client application.
Hardware: System shall utilize off-the-shelf computer workstations,
servers, networking and storage equipment.
No proprietary hardware shall be acceptable.
VMS shall provide the following operator functions:
Configuration: The operator (with Administrator privileges) shall have
the option to configure the system. It
shall support live updates of all configurations. The configurations shall
provide the option to add/edit/delete
recorders, cameras, switchers, keyboards, users and roles, sites,
recording rule, rule engine service etc.
Configuration of video recording trigger service and device recovery
service parameter shall be basic feature of
Data Dynamic Synchronization: The configuration data in VMS shall be
able to synchronous to all connected
VMS-Clients and NVR services.
Log Report: The operator shall be able to view the log reports.
VMS-Client Application shall have below mentioned features:
Live View: Main video viewing screen capable of showing 1, 4, 9, 16 and
other customized split layout of live or
recorded video. Standard presets may be customized to the user
Scenarios: Current view can be saved as scenario and allowing the user
to restore this view at any later point in
time. These scenarios shall be modified, overwrite or deleted as and when
ever required.
Drag and Drop: VMS-Client application shall provide drag and drop
functionality. Particular video device can
be dragged onto main video viewing screen to view live video.
PTZ Control: Support both analog and digital PTZ through GUI and the
keyboard. PTZ control shall be used for
adjusting PTZ movement and setting the focus, aperture and preset bit of
the camera.
Snapshot: Capable of capturing snapshot of live video and allowing user
to export snapshot. Snapshot tool shall
be available in video window itself. Only the authorized users shall have
snapshot functionality.
Video Export: VMS-Client shall have capability of download and export
recorded video from recorders.
Exported video clip shall be in OEM’s native format to ensure data
integrity. . However there should be the
provision in the system to export in other formats such as JPEG Images,
AVI, pdf etc.
Playback: VMS-Client shall be able to playback recorded video from
recorders. Different playback modes shall
be there as forward and backward playback.
NVR shall have below mentioned capabilities
Video Streaming: NVR shall relay the real-time streaming to the VMSClient.
Recording: NVR shall store the real-time streaming for a certain period
of time when it receives the storage
command from Trigger Service.
Each individual camera can be set a different preset recording frame rate
.Camera recording There shall be a
provision to set motion based/scheduled recording.
Video playback and download: NVR shall allow the user to playback
and download video records from NVRClient.
It shall also allow the user to configure the storage locations.
Pre-alarm Recording: NVR shall be capable to cache the real-time
streaming for a certain time (no longer than
10 minutes). When there is an event or alarm triggering recording,
prerecording can help trace the situation before
the event or alarm occurs.
Remote Upgrade: NVR shall be able to be upgraded without sending
device back to factory. It shall be remotely
upgraded from VMS-Client.
Specification of NVR
o Supply installation, Testing and Commissioning of adequate qty. of
NVRs which shall include the
required hardware & software as per the system requirement.
o The hardware shall eliminate single point of failure, by including
redundant power supplies and RAID 5
storage to optimize reliability. The System shall have a storage capacity
so as to record all cameras at
1080P/2MP resolution, H.264 compression and 12 fps/10fps for multi
sensor cameras and complying
with below mentioned details:
o Lifetime Licensed software to support minimum of 64 cameras having
base for fixing 4TB hard disk.
o 30 days Storage. The Bidder is to submit the Storage Calculations with
the offer. Comprehensive &
Integrated Software platform to handle Surveillance System.
o H.264 profile, multicasting & Dual Streaming features to make the best
use of the network and storage
resources. Mapping feature to enable for the quick identification of the
emergencies and response.
o Complete hardware & software are of factory fitted, qualified and
o Capability to search the devices in the network, their configuration and
their addition to the platform &
maintain database for the Alarms, errors, System health for easy
diagnostic & System health
o Multi-layer Map Support. Supports BMP & JPEG Map Import. Hot
swappable Disc storage enable for
hot rebuild & replacement. Software shall be scalable to add multiple (
min. 70 or more ) NVRs in a site
and there shall be a provision in the client to connect multiple sites/NVRs
for displaying the combination
of cameras from any of the sites.
o ONVIF compliant, 3 Years Warranty.
VMS Software
o VMS Software to provide data management center\tool includes user
management, system logs etc. and
event & control service which receives and controls events. However, the
system should be capable to
expand virtually up to unlimited number of cameras, access points by
incorporating multiple servers to
make a complete enterprise security system. System shall be capable of
local recording, local monitoring
and video management. Licensed to support a minimum of 64 cameras
and shall be licensed to support
unlimited clients. VMS shall have the capability to integrate with Access
control system and Intrusion
systems if required in future. 3 Years Warranty & Support
o VMS-Client Application to provide live video view, various video
playback support, historical video search
and playback, alarm management, Map integration and front end control
features to an operator. Client
Application shall also able to manage & control all devices, PTZ Camera
depending on the user access
privileges. System should support virtually unlimited VMS Clients. 3 Years
Warranty & Support.
The proposed system shall be able to support the below mentioned types
of cameras and the specifications
specified for each.
IP fixed dome camera:
Image sensor
Min. illumination
1/3” Progressive Scan CMOS
0.01 lux@F1.2, AGC ON, 0 lux with IR
4mm @ F2.0, (2.8mm, 6mm optional)
Angle of view:
98.5°(2.8mm), 79°(4mm), 49°(6mm)
night IR cut filter with auto switch
Compression Standard
Video compression
H.264 / MJPEG
H.264 codec profile
Main profile
Bit rate
32 Kbps ~ 16 Mbps
Max. Image Resolution 1280 × 960
Frame rate
50Hz: 25fps (1280 × 960), 25fps (1280 x 720)
Network storage
Local storage: Built-in Micro SD/SDHC/SDXC card slot,
up to 64 GB ; NAS
PPPoE, NTP, UPnP, SMTP, SNMP, IGMP, 802.1X, QoS, IPv6,
System compatibility
1 RJ45 10M/100M Ethernet interface
IP PTZ Camera:
Image Sensor
1/3" Progressive Scan CMOS
F2.0, AGC On: Color:0.05 lux, B/W : 0.01 lux
Max. Image
Focal Length
Digital Zoom
Angle of View
Focus Mode
Day & Night
1280(H) × 720(V)
3.6~11mm, 3x
77~37 degree (Wide~Tele)
Auto / Semiautomatic / Manual
Auto / Manual /ATW/Indoor/Outdoor/Daylight lamp/Sodium lamp
IR Cut Filter
Pan: 0~350°; Tilt: 0°~90°
Intrusion detection, line crossing detection, audio exception,
motion detection
10Base-T / 100Base-TX, RJ45 connector
H.264/ MJPEG
SD Should Support up to 128GB Micro SD/SDHC/SDXC card.
Memory Card Support Edge recording
S / N Ratio
≥ 52dB
CAT 6 UTP cable Make: AMP / Finolex/ Polycab
· Pair Cable, 23 AWG Copper with integral cross -member pair separator
for uniform characteristic impedance.
· Standardization ISO/IEC 11801 2nd Ed.; IEC 61156-5 2nd Ed.; EN
50173-1; EN 50288-6-1; • EIA/TIA
· Cable overall diameter: Ø 6.3 mm.
· Cable jacket characteristics: zero-halogen
· Cable jacket characteristics: flame-retardant
· Should have tensile strength of 100N.
· The cable should have 100ohm impedance and data transmission
frequencies up to 250MHz.
· It should be certified by independent test labs like 3P/Delta to meet Cat
-6 Standards.
PVC flat conduit – casing capping
· Made of PVC
· 25 mm size
· Including supply of screw, band, elbow and all accessories etc.
230 V + 10 % , 50 Hz + 5% shall be made available for UPS input.
Bidder’s scope shall include complete power distribution for IP CCTV
system, including complete cabling work, DBs and required electrical
accessories with suitable protection devices from UPS (in bidder’s scope)
and UPS output to IP CCTV cameras.
Component- Connector
All connector like RJ-45, LC connector patch cord etc required to complete
the system is in
supplier’s scope.
Inspection, testing and commissioning:
The purchaser or his authorized representative shall have access to the
supplier's premises at all
reasonable times to the extent necessary to assess compliance with the
provisions of this specification.
All the constituent units of IP based CCTV system equipment supplied to
the provisions of this
specification shall be subjected to visual, dimensional and functional
inspection and testing to the
satisfaction of the purchaser. Where functional and operating tests are
performed, the equipment shall
comply with all the provisions of this specification at the conclusion of
such tests. To this effect written
procedures describing the stepwise inspection and testing procedures indetail shall be submitted to the
purchaser for approval, prior to the commencement of such tests.
Test at site
After acceptance at the factory all the equipment shall be packed and
transported to the site. After
delivery all the tests for hardware and software shall be repeated at the
site. After the acceptance of the site
test report, installation and commissioning shall be carried out.
Real plant test (Semi industrial run)
Extensive testing of installed system at site for a period not less than 2
months under real plant
conditions shall be carried out to remove any hardware/software bugs
After successful completion of the semi-industrial run as per technical
requirement and to the
satisfaction of purchaser, the equipment will be considered as
commissioned. After it is commissioned, the
system shall be handed over to the purchaser. The supplier shall prepare
a commissioning document
containing all the tests and other details. Commissioning shall be
competed with 6 months from the date of
purchase order.
The equipment supplied shall be guaranteed for a period of 12 months
from the date of commissioning
The supplier shall provide complete details of wiring, cable routing and all
necessary documents after
installation as directed by purchaser.
Cable Tags
All the cables are to be tagged as per drawing or as guided by engineer in
charge with metallic tag. All
the termination of cables shall have necessary markers /ferrules and
terminated through metallic ferrules by
crimping only (Industrial type).
Approved make list for CCTV
Specification for 24 Port Manageable Switch
 Make – Reputed Make
 IEEE 802.3 compliant
 IEEE 802.3x Flow Control
 Half/Full-duplex operation
 Switching capacity : 10Gbps
 10/100/1000 Mbps ports : 24
 MAC Address Table size:2k
 Web based GUI for management
 Port-based VLAN
 Loopback Detection
The voice alarm system shall be designed for public address and emergency
evacuation. A 24Vdc output shall be available to supply power to external relays, so
no external power supply shall be required for that purpose. The frequency response
shall be 60 Hz – 18 kHz (+1/-3 dB, @ -10 dB ref. rated output. The distortion shall
not exceed 1% at the rated output, 1 kHz. The operating temperature range shall be
-10°C to +55°C. The storage temperature range shall be -40°C to +70°C.
The system shall comply with the following standards:
EVAC compliance acc. to IEC 60849
EMC emission acc. to EN 55103-1
EMC immunity acc. to EN 55103-2
Safety acc. to EN 60065
The design, supply, delivery, installation, testing, commissioning and maintenance of
the Public Address System shall include, but not limited to the following:
Wall Mount speaker’s c/w line matching transformers and volume controls, where
Termination of all cables to speakers, amplifiers, etc.;
Equipment rack complete with forced air ventilation fan(s), mounting brackets
blank panels, terminal boards, etc.
Main equipment and all associated auxiliary equipment;
Distribution cabling, including fire rated cables, where applicable, cable ladders,
racks and Cable supporting systems (cable trunking and concealed metal conduits)
All other works and materials necessary for the efficient operation of the whole
audio system Complete with power supply requirements and surge arrestors and
The primary objective of the system is to provide clear announcements during public
addressing and one-way voice communication during an emergency;
The system shall be capable of fulfilling the following requirements:
Clear, un-distorted announcements to selected areas during public addressing;
Clear, un-distorted paging to all zones; either individually or collectively. Selection
of groups of zones shall be programmable from time to time;
The loudspeakers shall be wired up in zones.
The zones shall further be grouped according to function so that it shall be possible
to make an announcement by depressing just one switch on the call station.
To allow flexibility in the system, it shall be designed to be expandable with easy
When the zones are selected for public addressing, a chime shall first be heard,
followed by the announcement.
The system shall comply with country Public Address Evacuation Code of practice or
IEC 60849 for the one-way emergency voice communication system in all aspects.
All control and switching equipment shall be centralized and decentralized as
specified and located in equipment racks in the FCC and equipment rooms.
Equipment supplied shall strictly be Standard Products from Public Address Product
Manufacturer. The tendered shall submit catalogues of all equipment offered and
upon delivery; certificate
of country of origin, Certificate of Conformity and Certificate of Evacuation for the
proposed PA Equipment shall be submitted.
For general office and public areas, the system shall be capable of delivering a
sound pressure level of 85 dB at the listening level.
The listening level shall be taken to be 1.5 m above floor level.
The reinforced sound shall be distributed evenly throughout the listening area; the
total variation in each area shall not exceed ±4 dB.
An articulation loss of consonants of less than 15% shall be maintained. (Generally,
the reverberation time of the various locations shall be assumed to be not more than
1.9 seconds).
Paging announcements shall be possible from any of the microphone call stations, or
from the microphone paging station to any zones within the network systems.
High quality signals shall be maintained at the output of the amplifiers to compensate
for losses in the audio distribution lines.
Each amplifier with 20% spare capacity shall be provided to drive all loudspeakers
during an emergency without overloading.
Each amplifier shall have a built-in self-restoring protection circuit to guard against
hazards of operation such as mis-loading at its input, short-circuiting of its output and
connection mistakes.
The amplifiers shall also have built-in line transformers for 100V loudspeaker
matching, DC input of emergency operation. It shall have amplifier monitoring and
auto-changeover over circuits & automatic volume control features built-in.
The amplifiers shall have control inputs and audio inputs for interfacing for fire alarm
signals. This control inputs shall be supervised, freely programmable for any system
actions and with priorities setting.
All speaker lines shall be supervised for open circuit fault, short circuit fault, and
short to ground fault.
Upon detection, the status of the fault shall be indicated in the Central Monitoring.
The loudspeakers shall be located such that they meet the necessary requirements.
In general, one wall mount speaker shall be provided for every 25 square meters in
each room such as offices and corridors.
All equipment such as the amplifiers shall be housed in equipment rack.
It shall meet the following minimum requirements:
The main function of the amplifier is the amplification of audio signals for the
loudspeakers. It shall be possible to select the output voltage between 100V, 70V or
50V by changing output. The amplifiers are provided with 2U & 3U high housing for
tabletop use and rack mounting, while the maximum amplifier wattages varies from
120w to maximums 960w.
The amplifiers are protected against overload and short circuits. A temperaturecontrolled fan ensures high reliability at high output power and low acoustic noise at
lower power output.
The amplifiers not only provide 70V and 100V outputs for constant voltage
loudspeaker systems, a low impedance output for 8 Ohm loudspeaker loads is
available for different usage.
Amplifier front panel with LED shall show as an indicator when it operates on the
battery or AC supply.
The amplifier shall be with the following approval: • EMC emission acc. to EN 55103-1
• EMC immunity acc. to EN 55103-2
• Frequency response 50 Hz – 20 kHz (+1/-3 dB, @ -10 dB ref. rated output)
• Distortion <1% @ rated output power, 1 kHz
• Line input (3-pin XLR, 6.3mm phone jack, balanced)
• Sensitivity 1 V
• Impedance 20 kOhm
• CMRR >25 dB (50 Hz-20 kHz)
• Line input 1, 2 (3-pin XLR, balanced)
• CMRR >25 dB (50 Hz-20 kHz)
• 100V input (Screw, unbalanced)
• Sensitivity 100 V
• Impedance 330 kOhm
• Line loop through output t (3-pin XLR, 6.3mm phone jack, balanced)
• Nominal level 1 V
• Impedance direct connection to line input
• Line loop through output 1,2 (3-pin XLR, balanced)
• Impedance direct connection to line input
• Loudspeaker outputs (Screw, floating)
• Output power @ 24 V
• Battery operation -1 dB ref. rated power
• Operating temperature range -10 to +550C
• Storage temperature range -40 to +700C
• Relative humidity <95%
The contractor shall make provision for all necessary power supply units, voltage
regulators, etc, to ensure that the equipment will perform satisfactorily c/w necessary
surge arrestors and filters.
All necessary power supply (s/s/o’s etc) required for the operation of the sound
equipment shall be designed supplied and installed by the contractor.
Installation shall be as shown on the drawings, and as recommended by the major
equipment manufacturer.
All cables, junction boxes, cables supports and hangers shall be concealed in
finished areas and may be exposed in unfinished areas. . If construction is on-going
during this period, measures shall be taken to protect detectors/ sensors from
contamination and physical damage. All speakers/controllers/amplifiers/call stations
shall be installed in accordance with installation instructions provided by the
manufacturer. All speakers shall be installed in the exact locations specified in the
design drawings; thus providing the best possible coverage All speakers shall be
securely fixed to approved boxes and allow for easy fitting and removal of it. Cable
and wire entries to speakers shall be fitted with grommets to prevent possible
damage to the insulation.
At final commissioning of each system, the Contractor shall confirm that:
All devices, control panels are tested and operate correctly.
The standby batteries are adequately sized. (Measurements of the quiescent and full
loads shall be taken and compared to calculated values used at the design stage.)
Calculations and measurements shall be submitted to the Engineer.
Commissioning shall be fully documented and the documentation submitted to the
The Contractor shall demonstrate each zone and main panel to the satisfaction of the
Engineer by conducting a series of witnessed acceptance tests as directed by the
Engineer. This shall take place after the above final commissioning and following
receipt of the commissioning documentation by the Engineer.
Both the installation and the commissioning activities shall be undertaken as a single
continuous operation.
The contractor shall make use of the following documents to record test results and
details of commissioning tests:
Cable Test Sheets
Installation Check Report
System Layout Drawing(s)
System Schematic Diagram(s)
The contractor shall be responsible for inspecting and testing the complete system.
The contractor shall present an Acceptance Certificate for signature by the customer.
Upon completion of the installation activity, the contractor shall Test, Start-up,
Commission and Handover the system to the customer.
The contractor, upon completion of the commissioning activity, shall hand over the
system to the customer.
At the time of hand over, the contractor shall provide the customer with the following
1. Copy of detailed report
2. Component and equipment list
3. Product description sheets
4. System design drawing(s)
6. System schematic diagram(s)
7. System operating manuals
Prior to final acceptance, the installing contractor shall provide complete operation
and maintenance instruction manuals to the owner. All aspects of system operation
and maintenance shall be detailed, including wiring diagrams of all circuits, a written
description of the system design, sequence of operation and drawing(s), illustrating
control logic and equipment used in the system. Checklists and procedures for
emergency situations, maintenance operations and procedures shall be included in
the manual.
The contractor shall provide the customer with details of the training required by
personnel to operate and maintain the PA system.
The Contractor and the customer shall jointly agree the number of staff to attend the
training courses.
Routine maintenance should be carried out in accordance with relevant customers‟
All performance checks undertaken should be recorded in the system log book.
As a minimum, the following performance checks must be undertaken on each
maintenance visit.
Carry out verification checks as detailed in the commissioning instructions.
Remove dust and dirt from the Control Panels/speakers using a soft brush or a lint
cloth. A solvent which is harmless to the finishes of metal and plastic may be applied
to more stubborn stains.
Examine the exterior of the enclosure for any signs of damage or loose cable glands
and rectify any faults found.
Examine the printed circuit boards for signs of overheating, dry joints and/or
damaged tracks. Examine the battery terminals for secure connection and for any
signs of corrosion. Replace or repair as required.
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