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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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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PART - 1

TECHNICAL SPECIFICATION FOR INSTRUMENTS

Section 1 – Specific Requirements - General

Section 2 - Technical Specification of Instruments

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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

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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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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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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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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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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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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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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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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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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PART - II

SCHEDULE – A1 & A2

SCHEDULE OF PRICES

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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