1. ORGINAL / COPY
KERALA STATE ELECTRICITY BOARD
AUTOMATION OF SEISMOLOGICAL OBSERVATORIES OF KSEB TO
DIGITAL MODE WITH CENTRAL RECORDING STATIONS AND
ACCELEROGRAPHS
TENDER NO: CE(C-DS) / 03 / 2012-13
VOLUME III
TECHNICAL SPECIFICATIONS FOR INSTRUMENTS
AND SCHEDULE OF PRICES
CHIEF ENGINEER (CIVIL- DAM SAFETY)
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2. KERALA STATE ELECTRICITY BOARD
CERTIFICATE
Certified that this document of Technical Specifications for instruments and
Schedule of prices Volume III for the Automation of Seismological observatories of KSE
Board to digital mode with Central Recording Stations and Accelerograph consists of two
parts
Part I - Technical Specifications for instruments (PAGES 01-16)
Part II - Schedule of prices (PAGES 17 - 20)
CHIEF ENGINEER (CIVIL- DAM SAFETY)
Office of the Chief Engineer (Civil-Dam Safety)
Kerala State Electricity Board
Vydyuthi Bhavanam, Pattom
Thiruvananthapuram, Kerala-695004, India
Phone / Fax 91471-2448972
Email: ceipds@ksebnet.com
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3. PART - 1
TECHNICAL SPECIFICATION FOR INSTRUMENTS
Section 1 – Specific Requirements - General
Section 2 - Technical Specification of Instruments
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4. Contents
Section 1
Specific Requirements
1.1 Introduction
1.2 General
1.3 Scope of Supply
1.4 Manuals and Drawing
1.5 Performance Guarantee
1.6 Training
1.7 Licence
Section – 2
TECHNICAL SPECIFICATION OF INSTRUMENTS
2.1 Electronic Equipments in Seismological Observatories
2.2.1 Broad Band Seismic Sensors
2.2.2 Data Acquisition System (DAS) and Other accessories
2.2.3 Accelerographs
2.2.4 VSAT Telemetry
2.2.5 Software at each field station
2.2.6 Central Recording Station (CRS) with auto–location facility
PART – II
SCHEDULE OF PRICES
Instructions for Completing the Schedule of Prices
Schedule of items
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5. Section 1
Specific Requirements
1.1 Introduction
This section covers Board’s specific technical conditions and requirements for the
Automation of seismological observatories of KSEB to digital mode with central recording
stations (CRS) and Accelerographs - Supply, installation, testing and Commissioning of
Seismic instruments, after sales service like all maintenance during warranty period, UPS
for all equipments and central recording stations of suitable capacity using solar panels
and system compatible to work in electric supply from the Grid. The scope of this
specification include responsibility for complete supply, installation of supplied equipments
/ items at site, all works to install the equipments / components supplied, site testing,
commissioning, provision of necessary assistance for site testing, commissioning of
equipments / components supplied, reliability and warranty confirmation of
instrumentation and Automation system etc for the unit supplied including necessary
training for officers of KSE Board for running & maintenance of the installations.
It is not intended here to describe the arrangement or installation, or to specify each and
every component required for the completeness of the unit or to select each material for
safe and reliable operation of the proposed unit / equipment. In general the unit shall be
complete in all respect with its equipment and accessories as required to make a
complete, highly reliable and maintainable installation, confirming to highest standards of
engineering design, safety and workmanship.
Every component required for the completeness of the unit / equipment and suitable
material required for safe and reliable operation of the proposed unit / equipment is
deemed to be included.
The layouts and arrangements are given, location may be as shown or any where in
Kerala State as directed by the Departmental Officers and the Contractor has to install
and commission the items accordingly.
The Contractor shall strictly observe the Specific requirements detailed out in the
following sections in conjunction with the general requirements given in Schedule A1 &
A2 of this document.
1.2 General
The capacities, ratings, sizes, quantities and materials specified in Schedule A1 & A2 and in
this specification are to be considered as the minimum requirements to be provided. It is
the responsibility of the Contractor / Manufacturer to determine the required capacities,
rating, sizes and quantities and select the appropriate material based on the guidelines
given in the following specifications. The telemetric system offered shall be
compatible to be interlinked with seismological network / data centre with in
India.
If the evaluated requirements are higher than the minimum requirements specified in
Part-I and the following specifications, then the required capacity / rating / size / quantities
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6. for the equipment shall be provided. If the evaluated requirements are less than the
minimum requirements, then the minimum requirements shall be complied with.
If any discrepancy is observed in capacities, ratings, sizes, quantities and materials specified
in Technical specifications – Part I and in the following specifications, then the
requirements given in this specification shall prevail. In case of any specific doubts or
issues, clarifications shall be obtained from the Board before proceeding.
The work of any Section is integral with the whole of the contract documents and is not
intended to be interpreted outside the context or as part.
1.3 Scope of Supply
The detailed scope of supply including the quantity required is given in Schedules A1 –
Price Schedule for Supply & Services attached with the Contract documents.
All fittings and accessories of the equipments which may not have been specifically
mentioned in the specification but considered necessary for the completion of the items
shall deemed to be covered by the specification and shall be indicated / furnished by the
contractor without any extra charges.
1.4 Manuals and Drawing
Operation and maintenance manual in detail shall be supplied in six copies immediately
after commissioning of equipment. The drawing shall be maintenance oriented and
supplied in convenient bunches and on best quality paper. Besides, all drawings shall be
finally supplied on long life CD/ROM
1.5 Performance Guarantee
The equipment supplied under this contract will be under performance guarantee valid
for the period of 3 years from the date commissioning
1.6 Training
The contractor shall arrange training for the system supervisors / Engineers of KSE Board
to familiarise them with the equipments so as to ensure better running & maintenance of
the system including data collection, interpretation and other requirements
1.7 Licence
The licences of the software required for the operation should be in the name of Kerala
State Electricity Board and the license fee if any, for the software shall be included in the
quoted price.
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7. Section – 2
TECHNICAL SPECIFICATION OF INSTRUMENTS
This section covers specific technical conditions and requirements for the various equipments
in connection with the Automation of seismological observatories of KSEB to digital mode with
central recording stations (CRS) and Accelerographs.
2.2 ELECTRONIC EQUIPMENTS IN SEISMOLOGICAL
OBSERVATORIES
1.3.1 Broad band Seismic sensors
Topology
Symmetric / Orthogonal tri-axial seismometer with three components consisting of one vertical
and two horizontal having cross axis accuracy within 1°
Type
Broadband velocity transducer with electronic feedback so as to have a force balance transducer
Frequency response
Flat response (within ± 3dB) to ground velocity in the range 120 Sec to 50Hz.
Dynamic range
>135 dB
Output voltage
±20V or more
Damping
0.7 of critical
Velocity sensitivity
Differential output in the range of 1200 (2*600) V/m/sec to 2000 (2 * 1000)V/m/sec
Linearity
Less than ±1% of full scale
Mass cantering
Automatic or on external command locally or from remote
Calibration facility
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8. Calibration facility through Data Acquisition System
Frequency response curve and system information
Frequency response curve of the unit along with information regarding transfer function
including poles and zeros should be provided.
Noise Response
Must be below the USGS Low Noise Model in the frequency range of at least 30 sec to 5 Hz.
Tested and certified reports of the self noise over the pass band should be provided.
Indicators
Should have an indicator for levelling the transducer and have an indicator
Mass position indicator
Facility to display and monitor the sensor internal mass position should be provided.
Humidity and operating
Up to 100% RH and 0° to 50 C°
Power requirement
< 2.0 Watts at 12 VDC
Housing
The tri-axial sensors should be mounted in a single water-proof and air-tight enclosure.
Mass locking and safety mechanism
A robust locking and safety mechanism during transportation should be provided
Connectors
All connectors should be water-proof and rust- proof
Cable
Low loss shielded cable of at least 20 meters with appropriate end connectors
Thermal insulation cover
Thermal insulation cover should be provided.
1.3.2 Data Acquisition System (DAS) and Other accessories
Number of channels
Three channels
ADC
Three independent 24-bit digitizers, one for each channel
Dynamic range
≥ 130 dB at 100 samples per second
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9. Input range
Should match to the sensor output
Common mode rejection ratio
Better than 70 dB
Channel to Channel skew:
a) Zero-Simultaneous sampling of all the channels
b) Immune to electromagnetic interference
System noise
The overall system noise should not be more than 2-3 counts of 24-bits system on an RMS
basic in the frequency range corresponding to the pass band 120 sec to 50 Hz.
Sampling rate
User selectable in the range from 1 up to at least 500 SPS per channel in different data streams
(at least two or more). Simultaneous recording at different sampling rates in different streams
(two or more) both in continuous and trigger modes. Trigger parameters should be user
selectable.
Filter
Linear phase digital FIR filter
Internal RAM
16 MB or higher RAM
Storage capacity
Internal Hard disk / compact flash disc card of minimum capacity 8GB configured in “Ring-
Buffer” type recording of both continuous and triggered data.
Recording format
Standard earthquake format compatible to Windows and UNIX with provision for using proven
compression techniques, User friendly data management utilities to be provided
Timing System
a) GPS receiver based timing system with all its associated electronic circuits to be
inside the DAS unit and antenna exposed to outside.
b) Recording of GPS status information.
c) Free running TCXO accuracy of 1 ppm over full operating temperature range.
GPS Antenna and cable
a) Antenna cable length should be minimum 15 meters.
b) Antenna should be enclosed in a water-tight enclosure and should work effectively
in extreme climatic conditions.
c) Lightening protection to provided.
d) Rust-proof antenna mounting rod and its accessories.
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10. Sensor Control features
a) Sensor calibration facility
b) Sensor mass position monitoring, locally or remotely.
c) Sensor mass centering on command, locally or remotely.
Calibration
Facility for integrated system calibration to be provided and described
Recording mode
The DAS should have provision to support real-time data telemetry to a CRS through VSAT
telemetry network in addition to the local recording in hard disc / compact flash disc
Communication ports
a) USB/Ethernet and/ or serial port connectivity to a local terminal for parameter
setting and event data downloading.
b) A separate port for dial-up modem connectivity to download the event data to CRS
Status Display
Status display for power, data acquisition, State of health (SOH), GPS status etc should be
available
Power requirements
a) Supply voltage 10 -15 Volts DC
b) Power consumption of DAS not exceeding 2W at 12V DC in normal active
operational mode of data acquisition.
c) Provision for charging the batteries both from solar cell and from a 230 V/50Hz AC mains
source.
d) Voltage from battery to sensor and DAS units should be through isolating DC/DC
converters.
e) DAS should resume data acquisition automatically when the power is restored after
disruption.
f) Power should be isolated from the signal ground
g) The recorder should be configured so that the auxiliary external 12V DC power source
may be easily connected in such a way as to add the capacity of the batteries.
Operating temperature and humidity range
Up to 100% RH and 0° to 50 C°
Environment
All the indoor units should work in typical tropical environment conditions and should work
without air conditioning.
Housing
GPS and DAS modules should be enclosed in weather and shock-proof sealed enclosures with
lighting protection.
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11. VSAT telemetry connectivity
Ethernet port (10/100 Base-T) supporting TCP/IP or any other proven and tested protocol,
DAS firmware should support the following features:
a) Full Duplex communication between field and Central Recording Station (CRS).
b) Triggered or continuous data transmission
c) Extensive error correction.
d) Network state of health (SOH), communication performance statistics.
1.3.3 Accelerographs
Type
Internally mounted orthogonally oriented tri axial accelerometer with 24 bit 3channel
recorder.
Full scale
±2g
Output voltage
Matched to that of the Recorder
Frequency band
DC to 50 Hz
Damping
0.7 Critical
Dynamic range
Exceeding 112 dB
Sample rate
200 SPS or more per channel
Memory
1GB
GPS Receiver for time synchronisation.
Data acquisition mode in continuous, triggered with pre and post event recording
facilities
Software
Data downloading software and Data Analysis Software, Shall include utility for
converting the acceleration data in to velocity, displacement and power spectral density
etc.
VSAT Connectivity
The four accelerographs to be installed at Idukki DAM and one accelerograph to be
installed at Vallakkadavu should be compatible to be interlinked to the CRS through
VSAT.
DAM Details:
The total height of the DAM is approximately 165meters. The first Accelerograph will
be installed in the top of the Idukki DAM and from the first Accelerograph to the
second accelerograph is 85 meters. From second Accelerograph to third accelerograph
is 85 meters. From third accelerograph to fourth accelerograph is 80 meters.
1.3.4 VSAT Telemetry
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12. The bidder should quote for VSAT telemetry system with the following details:
1. The system should transmit continuous tri-axial broad band seismograph data on
real time basis @ 100sps from 7 seismograph stations and five accelerograph data
on triggered basis @100sps to a Central Recording Station (CRS) situated at
Thiruvananthapuram / Vazhathope or any other place in Kerala. The necessary
VSAT hardware should be quoted. The VSAT system should run of Battery power.
ie IDU should be operated from Battery Power.
2. The VSAT telemetric system should be configured for a minimum band width of
100kbps in the extended C band. Additional band width requirement shall be quoted
as an optional item.
3. The bidder should quote the bandwidth charges for a period of 3 years.
4. The system should be capable of simultaneously recording at 2 central recording
stations on continuous basis
5. The system should be able to accept data from 10 more remote stations in future
expansion.
6. The hardware / band width or any other charges for the second CRS should be
quoted as an optional item.
2.2.5 Software at each field station
2.2.5.1 Data Processing and other Utility Software
a) Appropriate communication software to download the event data and log, through
communication port in local terminal.
b) Appropriate utility software for faster downloading of large amounts of data from the
ring-buffer disk of the DAS, through fast-communication port (of DAS) into the local
terminal.
c) Parameter setting and on – site control panel
d) Provision to convert the data into Standard formats such as SEISAN, ASCII, SEED etc.
e) Provision to display the trigger information on different streams, State of Health of
the Sensor, GPS and DAS, mass centering etc.
f) Software for basic and advanced analysis of the seismic data
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13. g) Continuous waveform display of the recorded data.
h) Facility to plot and display and desired segment of recorded data.
2.2.6 Central Recording Station (CRS) with auto–location facility
At CRS there should be two sets of Data Acquisition Computer, one as a Primary and the
other as a Secondary for redundancy. Each Data Acquisition computer should consist of
(i) Work station for acquiring Real time Data from all field stations with hardware
2.4GHz processor, 2 GB RAM, DVD+/– RW, 250 GB Hard Disk and 20" wide
screen
(ii) Licensed Software for auto-location of earthquake parameters detected by the
network and displays the parameters and the location on the appropriate map.
(iii) The automatic located earthquake parameters should also be automatically
transmitted to the designated persons via SMS, email etc.
(iv) It should also have a provision to manually re-locating the earthquake parameter and
revise the SMS to the designated persons.
(v) Power back up facility
(vi) LCD 42" screen for online display of continuous VSAT telemetric data
(vii) There should be provision to export event waveform data of auto located of events
in a separate data base such as SEISAN to be used for offline analysis and generation
of bulletin.
(viii) The Data Acquisition Computer/system of the CRS should be capable to transfer
incoming data from all or selected field stations of KSEB network to another server
(of any other seismological network / data centre) on real time basis located at
different place through internet or leased line. The incoming real time data at
different place should be easily integrated with auto location software such as
SEISCOMP, Response Hydra and Antelope. The required software module at both
places for such data transfer should be provided as an optional item by the
vendor.
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17. PART - II
SCHEDULE – A1 & A2
SCHEDULE OF PRICES
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18. Instructions for Completing the Schedule of Prices
This Schedule comprises typical forms for completion and submission by the Bidder.
Schedule-A1 & A2 shall be used for quoting the price for the design, planning,
engineering, manufacture and supply of equipment including installation, testing and
commissioning. The bidders shall indicate the rates in INR /USD as applicable for each
items of work including all taxes, freight & cartage, duties, levies, conveyance charges,
clearance charges etc. complete. All statutory recoveries will be deducted from the
contractor's work bill at the prevailing rates.
1.1 Bidders shall quote for the entire package on a single source responsibility basis.
1.2 Rates shall be quoted in INR for components /items manufactured in India and
in INR / USD as applicable for items to be imported.
1.3. The bidders shall quote their prices in the same format given in the schedules A1
and no other formats devised by the contractor will be accepted.
.Terms of Payment
(i) The payment will be effected only after the satisfactory completion of the
work including supply, installation, testing and commissioning and on
proper certification by the Engineer in charge.
(ii) 5% of the contract price will be retained as the performance security for a
period of 3 years which will be informed in the letter of acceptance.
(iii) If the contractor desires for a part payment, the break up schedule of items
claimed in the part bill shall be produced showing the cost, taxes, freight and
cartage, duties and levies etc. complete. 50% of the cost of equipments /
materials shall be considered for such payment after effecting statutory
recoveries.
(iv) The base currency as regard to this tender is INR. But if the bidder desires to
quote for items which are imported and supplied for this work, the quote
shall be in INR/USD and the payment shall be made accordingly
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