8/12/2019 0.2S ABT (03.07.2013)

1/21

8/12/2019 0.2S ABT (03.07.2013)

2/21

$. Co. $tandard Co. Title1 =$ 1580? 1

with latest amendment67 static transformer operatedDatthour and *6 E %our meters,class ".#$ ' ".+$.

# 79=; ;ublication Co. 2"5 anual on $tandardi4ation of 67$tatic )lectricity )nergy eters.To be referred for tests for immunity

against 67 ' (7 magnetic inductionof e3ternal origin as per revised valuesgiven at 7lause 5.8.5, Table E 10,=nfluence uantities.

2 =)7 E 8"8G0 E #"""with latest amendment

67 static Datthour meters for activeenergy, class ".#$ ' ".+$.

5 79=; Technical eport Co. 111with latest amendments.

$pecification for 7ommon etereading =nstrument.

+ =$ E """with latest amendment

9asic environmental testingprocedures for electronic and electricalitems.

8 =$ 1++ E #"11 =ndian $tandard E (ata )3change for)lectricity eter eading, Tariff and

8/12/2019 0.2S ABT (03.07.2013)

3/21

ultiplying factor to arrive at actual primary values wherever applicable, shall becalculated from the 7T and *T ratio of the installed 7Ts and *Ts.

.0 GENERAL TECHNICAL RE!UIREMENTS:

+.1 The micro processor based 2 phase 5 wire metering system shall conform toclass ".#$ as per =$:1580?1 and meter shall be draw E out type modular unitwith facility of automatic 7T shorting.

+.# The active energy measurement -Dh shall be carried out on 2 phase 5 wire

principle with an accuracy as per class ".#$ of =$:1580?1. =n the meters, theenergy shall be computed directly in 7T/*T secondary &uantities and indicated inDatthours. The meters shall compute the active energy -Dh import and e3portfrom the sub station during each successive 1+ minute block and store in itsmemory. =t shall also display on demand the Dh import and e3port during theprevious 1+ minutes block.

+.2 Further, the meter shall continuously integrate and display on demand theaccumulative active energy import and e3port from the sub station upto date 'time. The cumulative Datthour reading at each midnight shall be stored in themeter memory. $eparate register shall be maintained for active energy import ande3port.

+.5 The meter shall count the number of cycles in *T/7*T output during eachsuccessive 1+ minute block and divide the same by "" to arrive at the averagefre&uency. This shall be available in the report generated as a two digit code,which shall be arrived at by subtracting 5 from the average fre&uency,multiplying by +" and neglecting all decimals. For e3ample 5.G %4. shall berecorded as 55. =n case the average fre&uency is less than 5 %4. it shall berecorded as "". =n case it is +1." %4. or higher it shall be recorded as . Theaverage fre&uency of the previous 1+ minute block shall also be displayed ondemand in %ert4.

+.+ The meter shall continuously compute the average of the $ value

-fundamental only of the 2 phases to neutral *T/7*T secondary voltage and thendisplay the same on demand.

+.8 The meter shall also compute the reactive power -*6r on 2 phase 5 wireprinciple and integrate the reactive energy -*6rh algebraically in two separateregisters, one for the period for which $ voltage is 1"2 or higher and theother for the period for which the $ voltage is below 0.

8/12/2019 0.2S ABT (03.07.2013)

4/21

+.1" )ach meter shall have a non volatile memory in which the following shall beautomatically stored. The non volatile memory should retain data for a period notless than 1" years under un?powered condition. 9attery back up memory will notbe treated as C* and shall not be accepted.

+.1".1 6verage fre&uency for each successive 1+ minutes block upto seconddecimal.

+.1".# Dh transmittal during each successive 1+ minutes block upto second

decimal for import and e3port separately.+.1".2 7umulative Dh transmittal at each mid night.

+.1".5 7umulative *6rh transmittal for voltage high condition at each mid night.

+.1".+ 7umulative *6rh transmittal for voltage low condition at each mid night.

+.1".8 Failure of *T supply on any one phase as a star -J mark in load surveydata.

+.11 The meters shall store all the above listed data in their memories for a period of0+ days. The data older than 0+ days shall get erased automatically.

+.1# =t shall be possible to obtain data from the meter in the following form.

(ate: Time Fre&uency Dh. -import Dh -)3port Dh -Cet"": 1+ 1#.## #+.## ?12.""

"":2" 12.1 #2.1 ?1".""

?

?

?

#5:"" 20.#2 #0.#2 > 1".""

+.12 6ll meters shall be totally identical in all respects e3cept for their uni&ue

identification codes. They shall also be totally sealed with no possibility of anyad!ustment at site e3cept for clock correction.

+.15 The meters shall safely withstand the usual fluctuation arising during faults, inparticular ,11+ of rated *T/7*T secondary voltage applied continuously and1" of rated secondary voltage for 2 seconds, and 1#" of rated 7T secondarycurrent applied continuously and #" times of ma3imum current applied for ".+seconds, shall not cause any damage to or the maloperation of the meters.

+.1+ =ndividual meter should drive operating power from *T/7*T supply. =t shouldoperate normally on *T/7*T supply and automatically switch over to (7au3iliary supply . The provision of au3iliary supply of ##" * (7/11"* (7should be made in the meter. The voltage regulation in the au3iliary supply shallbe within >/? #".

+.18 6n automatic back up for the continued operation of the offered meters clockand calendar shall be provided through a long life battery which shall be capable ofsupplying the re&uired power for atleast two years under meter un?poweredconditions. The offered meters shall be supplied duly fitted with the battery thatshall not be re&uired to be changed for at least 1" years, as long as total *Tinterruption does not e3ceed two years.

+.10 ;ower Factor ange:

The meter shall be suitable for full power factor range from 4ero -lagging throughunity to 4ero -leading. The meter should work as an active energy import ande3port and reactive -lag and lead energy meter.

+.1G ;ower $upply *ariation

The meter should be suitable for working with following supply variations:

$pecified operating range ? ".G to 1.1 *ref.

8/12/2019 0.2S ABT (03.07.2013)

5/21

+.1 6ccuracy7lass of accuracy of the meter shall be ".#$ for active energy ' ".+$ for reactiveenergy. The accuracy should not drift with time. The measurement of accuracy ofthe parameters shall be as under:;arameter 6ccuracy class of meter

".#$Dh ? ".#

*6rh ? ".+

+.#" ;ower 7onsumption

i *oltage 7ircuit: The active and apparent power consumption in eachvoltage circuit including the power supply of meter at reference voltage,reference temperature and reference fre&uency shall not e3ceed 1.+ Datt perphase and 1" *6 per phase respectively.

ii 7urrent 7ircuit: The apparent power taken by each current circuit at basiccurrent, reference fre&uency and reference temperature shall not e3ceed 1 *6per phase.

+.#1 $tarting 7urrent

The meter should start registering the energy at ".1 =b at unity power factor.+.## a3imum 7urrent

The rated ma3imum current of the meter shall be 1#" =b.

".0 GENERAL AND CONSTRUCTIONAL RE!UIREMENTS

8.1 eters shall be designed and constructed in such a way so as to avoid causingany danger during use and under normal conditions. %owever, the followingshould be ensured:

a ;ersonnel safety against electric shock

b ;ersonnel safety against effects of e3cessive temperature.

c ;rotection against heat ' spread of fire.

d ;rotection against penetration of solid ob!ects, dust and water.

e ;rotection against radio interference.

f ;rotection against electro?magnetic ' electro?static fields.

g ;rotection against shock ' vibration.

h ;rotection against fraud.

i ;revention against pilferage.

8.# 6ll the material and electronic power components used in the manufacture of the

meter shall be of highest &uality and reputed make to ensure higher reliability,longer life and sustained accuracy.

8.2 The meter shall be designed with application specific non?editable integratedcircuits/microprocessors. The electronic components shall be mounted on theprinted circuit board using latest technology.

8.5 6ll insulating materials used in the construction of meters shall be non?hygroscopic non?ageing and of tested &uality. 6ll parts that are likely to developcorrosion shall be effectively protected against corrosion by providing suitableprotective coating.

8.+ The meter shall be draw out type modular unit with facility of automatic 7T

shorting .The meter shall be housed in a metallic case with an earthing terminal.The terminal block shall be provided on the case.

8.8 )ach meter shall have a test output device -visual for checking the accuracy ofactive energy -Dh and reactive energy -*6rh measurement using a suitable teste&uipment. The test output shall not be software configurable. =t should bepossible to select the output for active energy import / e3port and reactive energylag / lead by operation of the push button-s/ keypad provided on the meter forscrolling through the menu / display.

8.0 The meter shall have an operation indication device such as a blinking

8/12/2019 0.2S ABT (03.07.2013)

6/21

pulse with the use of push buttons/ keypad/ menu selection provided on the meter-access through software should not be re&uired.

8.G The meter shall be suitable for being connected through test terminal blocks tothe voltage transformer having a rated secondary line to neutral voltage of 11"/I2* and to current transformers having a rated secondary current of 16 or +6 as perre&uirement. 6ny further transformers / transducers re&uired for their functioningshall be in?built in the meters. Cecessary isolation and / or suppression shall alsobe built?in for protecting the meters from surges and voltage spikes that mayoccur in the *T/7*T/7T circuits of the )%* switchyards.

8. 6 keypad / ;ush buttons-s shall be provided on the front of the main controlmodule for switching on the display of the metering module / parameters selectedand for changing from one indication to the ne3t. enu driven or other forms ofdisplay can also be accepted provided they meet *;C re&uirements. $ucharrangements shall be demonstrated and got approved from *;C, duringtechnical bid evaluation.

8.1" The meter shall have communication facilities as per =$ 1++ E #"11: =ndian$tandard E (ata )3change for )lectricity eter eading, Tariff and

8/12/2019 0.2S ABT (03.07.2013)

7/21

operation indicator. The window shall be ultrasonically welded with the metercover such that it cannot be removed undamaged without breaking the metercover seals.

8.18 The terminal block shall be of high grade non hygroscopic, fire retardant, lowtracking, fire?resistant, high grade engineering plastic -not bakelite whichshould form an e3tension of the meter case, meeting the re&uirement of clauseCo.8.5 of =$ 1580/ 7lause Co. 5.#.5 of =)7 1"28?18.The current circuit conductors of a meter shall be connected to its currentterminals inside the meter terminal block adopting any of the recommendedmethods given in clause 8.5 E 6nne3ure 9 of =$?1200 E 1.

8.10 The manner of fi3ing the conductors to the terminal block shall ensure ade&uateand durable contact such that there is no risk of loosening or undue heating.$crew connections transmitting contact force and screw fi3ings which may beloosened and tightened several times during the life of the meter shall screw into ametal nut. 6ll parts of each terminal shall be such that the risk of corrosionresulting from contact with any other metal part is minimi4ed. Two screws shallbe provided in each current terminal for effectively clamping the e3ternal leads ofthimbles. )ach screw shall engage at least 2 threads in the terminal. The ends of

screws shall be such as not to pierce the conductor. )lectrical connections shallbe so designed that contact pressure is not transmitted through insulating material.The internal diameter of the terminal holes shall be +.+ mm. The clearances andcreepage distances shall conform to clause 8.8 of =$ 1580 ?1. inimumcenter to center clearance between ad!acent connections shall be 12.+ mm.6lternate e&uivalent manners of fi3ing/ connecting conductors/ wires to the metermay be proposed but shall have to be demonstrated during pre?bid evaluation foracceptance by *;C.

8.1G =n case of the terminal block and the meter case, reasonable safety shall beensured against the spread of fire. The material should not be ignited by thermicoverload of live parts in contact with them.

8.1 The meter shall be compact in design. The entire design and construction shall becapable of withstanding stresses likely to occur in actual service and roughhandling during transportation. The meter shall be convenient to transport andimmune to shock and vibrations during transportation and handling.

8.#" $)6

8/12/2019 0.2S ABT (03.07.2013)

8/21

the seals of the meter cover. The name plate shall be marked indelibly. The nameplate marking should not fade or otherwise be adversely affected by A* e3posurewith lapse of time. The basic markings on the meter name plate shall be asfollows:?i. anufacturers name and trade mark.ii. Type designation.iii. Cumber of phases and wires.iv. $erial Cumber.

v. onth and year of manufacture.vi. eference voltage and ;T ratio.vii. ated secondary current of 7T -?/1 6 or -?/+ 6 as per re&uirement.viii. ;rincipal unit-s of measurement.i3. eter constant -=mp/kDh, =mp/k*6rh.3. 7lass inde3 of meter.3i. M;roperty of *;C

8/12/2019 0.2S ABT (03.07.2013)

9/21

occurs/ persists shall also be recorded in the meters memory. The indication shallautomatically resume normal function when corresponding *T secondary voltageis healthy again. The two *6rh registers specified in clause +.8 shall remain stayput while *T supply is unhealthy.

0.# =ndividual meter should drive operating power from *T/7*T supply. =t shouldoperate normally on *T/7*T supply and automatically switch over to (7au3iliary supply . The provision of au3iliary supply of ##" * (7/11"* (7should be made in the meter. The voltage regulation in the au3iliary supply shall

be within >/? #".0.2 The meters should be provided with pulse output coincident with end of its

demand period.

0.5 The meter should have

8/12/2019 0.2S ABT (03.07.2013)

10/21

0.12 (isplay $e&uence:

The meter shall display the re&uired parameters on suitable selection through keypad or push button-s or menu selection.a

8/12/2019 0.2S ABT (03.07.2013)

11/21

c 7urrent unbalance.ii (ate and time of last anomaly occurrence with type of anomaly.iii (ate and time of last anomaly restoration with type of anomaly.iv 7umulative anomaly count of all types of anomalies and all phases.(etailed phase wise anomaly information should, however, be logged in themeter memory and be capable of down loading through the 96$=77O;AT) $OFTD6) through the 7= and be available for viewing.

0.15 Output (evice :

The meter shall have a test output accessible from the front and be capable ofbeing monitored with suitable testing e&uipment. The operation indicator, if fitted,must be visible from the front. Test output device shall be provided in the form ofone common

8/12/2019 0.2S ABT (03.07.2013)

12/21

! *6rh )3port when voltage was more than 1"2 .

The meter shall also be capable of recording the 1+ minute average values of thefollowing data for at least last 0+ days.

i D =mport.ii D )3port.iii *6 =mport.iv *6 )3port.

v 6ll the three phase voltages i.e. C, RC and 9C.vi 6ll the three phase currents i.e. , R ' 9.vii ;ower Factor.

The data re&uired for transmission on line from the meter through communicationport-s as mentioned under para 8.1" shall be as given at clause 0.#8.

=t shall be possible to select either demand or energy view in the 9asic 7omputer$oftware.

The average fre&uency should be logged with a marking of time advance / retardand voltage low event if occurred in that survey integration period. *oltage lowmarking should be locked when average voltage goes below 8" of *ref.

The load survey data should be available in the form of bar charts as well as inspread sheets. The 9asic 7omputer $oftware shall have the facility to give thecomplete load survey data both in numeric and graphic forms.

The figures of #5 hourly Dh import, Dh e3port and *6h import, *6h e3portshould also be made available under each date in the load survey or otherwise, itshould be possible to calculate such figures through 9asic 7omputer $oftware.

The predefined date and time for registering the billing parameters of Dh import,Dh e3port, *6h import, *6h e3port, ;F import, ;F e3port and *6 ( import,*6 ( e3port shall be ""."" hours of the first day of each calendar -billingmonth. 6ll billing parameters shall be transferred to billing registers and shall bedisplayed on display mode referred to as L9=

8/12/2019 0.2S ABT (03.07.2013)

13/21

The values of total energy shall be made available either on meter display or on7= with proper resolution.

The supplier shall state as to how he will meet the above re&uirement and finallythe above re&uirement shall be mutually agreed between user and supplier.

The total energy -fundamental plus harmonic energy shall be logged in the metermemory and be capable of down loading to the 97$ directly or through the7=.

0.#" $elf (iagnostic Feature:

The meter shall be capable of performing complete self diagnostic check tomonitor the circuits for any malfunctioning to ensure integrity of data memorylocation all the time.

The meter shall have indications for unsatisfactory / non E functioning /malfunctioning of the following as per the re&uirement under @ 1 of =$ 1580:a Time and date, andb 6ll display segments.

The meter shall have indications for unsatisfactory / non E functioning of the

following as per clause 8.1" of the 79=; ;ublication Co. 2"5.a Time and 7alendarb eal Time 7lockc T7 9atteryd Con E *olatile 9attery

The details of malfunctioning of time and date should be recorded in the metermemory. The details of self diagnostic capability feature should be furnished bythe bidder.

0.#1 Tamper and 6nomaly detection features:The meter should have features to detect the occurrence and restoration of at leastthe following common ways of tamper/anomaly:a issing potential : The meter shall be capable of detecting and recording

occurrences and restoration of missing potential -1 phase or # phases whichcan happen due to intentional / accidental disconnection of potential leads,along with the total number of such occurrences for all phases. 6bsence ofone or more phase voltage from mains side should not be recorded as missingpotential.

b 7T polarity reversal : The meter shall be capable of detecting andrecording occurrences and restoration of 7T polarity reversal of one or morephases.

c 7T $hort -9ypass / Open: The meter shall be capable of detecting andrecording occurrences and restoration of shorting -bypassing / opening of

any one or two phases of 7T when the meter is connected to a 2 phase 5 wiresystem. This feature shall not be available if and when the meter is connectedto a 2 phase 2 wire system.

d 7urrent and voltage unbalance: The meter shall be capable of detecting andrecording occurrences and restoration of current and voltage unbalanceseparately as an anomaly event.$nap shots -numerical values of voltage, current, power factor and energy-Dh/kDh readings as well as the date and time of logging of the occurrenceand restoration of all anomaly events, sub!ect to meter memory space asdescribed herein under, should be logged in the meter memory and availablefor retrieving through the meters optical port via 7= and down loading to

the 9asic 7omputer $oftware.e ;ower On/Off: =f both the au3iliary voltages are not available, power OFF

event should be logged, and power OC event should be logged when supplyis available. The power on and off event should be logged with date and time.

inimum hundred -1"" events -occurrence and restoration of all types ofanomaly with date and time shall be available in the meter memory on first?in,first?out basis. =t shall be possible to retrieve the anomaly data along with allrelated snap shots data through the meters optical port with the help ofcommunication system available and down load the same to the 9asic 7omputer$oftware where it shall be available for viewing. 6ll this information shall beavailable in simple and easily understandable format.

".#$ 69T?"2."0.#"12-6B$ ;age 12 of #1

8/12/2019 0.2S ABT (03.07.2013)

14/21

0.## 6nomaly detection logic:6 properly designed meter anomaly logic should be provided. The anomaly logicshould be capable of discriminating the system abnormalities from source sideand load side and it should not log / record anomaly due to source sideabnormalities.The threshold values and logic for voltage, current and ;F, etc. for the purpose oflogging occurrence and restoration of various types of anomalies are given below

at clause 0.#2. The bidder may, however, propose other logics/ values in theiroffer based on their e3perience.

0.#2$.Co. Tamper event with date

and timeOccurrence estoration

1 issing ;otential :a *oltage Q#" *ref S5" *ref

b =9 S#" =b

-=> =R > =9 Q+ =b

b ;ersistence Time + in. 1#" $econdsCotes : 1 7urrent $hort / 9ypass detection shall be phase wise.

5 7urrent Anbalance:a a3. 7urrent E in.

7urrentS + =b Q1 =b

b ;ersistence Time + in. 1#" $ec.

+ *oltage Anbalancea -a3. *oltage?in.*oltage 3 1""U/6vg.*oltage

S + *ref. Q1 *ref.

b ;ersistence Time + in. 1#" $ec.Cotes:1 *oltage Anbalance detection will be phase wise

Cote: 6ny temper event will be logged only when the meter senses allrespective threshold conditions.

0.#5 There shall be four separate compartments for logging of different type of

anomalies as follows:7ompartment Co.1 :26of total anomaly memory space shall be allocated for the following currentrelated anomalies: 7T polarity reversal 7T open circuit 7T short -by pass7ompartment Co.#:26of total anomaly memory space shall be allocated for missing potential andvoltage unbalance anomalies.7ompartment Co.2 :

06of total anomaly memory space shall be allocated for current unbalanceanomalies.

".#$ 69T?"2."0.#"12-6B$ ;age 15 of #1

8/12/2019 0.2S ABT (03.07.2013)

15/21

7ompartment Co.5 :T7$8 (20)events of power OC / OFF.

The logging of various anomalies in each compartment should be as under:

Once one or more compartments have become full, the last anomaly eventpertaining to the same compartment will be entered and the earliest -first oneanomaly event should disappear. Thus, in this manner each succeeding anomalyevent will replace the earliest recorded event, compartment wise. )vents of one

compartment/category should overwrite the events of their own compartment/category only.

9idders may indicate alternate proposals for the above anomaly detection andlogging scheme.

6nomaly count should increase as per occurrence -not restoration of anomalyevents. The total number of anomaly counts should also be provided on the meterdisplay as well as at the 9asic 7omputer $oftware end.

0.#+ 6nomaly ;ersistence Time:

The persistence time for logging/registration of an occurrence of an anomalyshould be + minutes K1" seconds. The persistence time for logging of restoration

of anomaly should not be more than 1#" seconds.0.#8 Transmission of (ata:

The following parameters/data shall be available for transmission through thecommunication ports indicated at clause 8.1".

a =nstantaneous ;arameters:

i eal Time 7lock E(ate and Time

ii 7urrent E =

iii 7urrent ? =R iv 7urrent E =9v *oltage E *C vi *oltage E *RC

vii *oltage E *9C viii *oltage E *Ri3 *oltage E *9R 3 $igned ;ower Factor E ;hase3i $igned ;ower Factor E R ;hase 3ii $igned ;ower Factor E 9 ;hase3iii Three ;hase ;ower Factor E ;F 3iv Fre&uency3v 6pparent ;ower E k*6 3vi $igned 6ctive ;ower E

kD -> =mportV E )3port3vii $igned eactive ;ower E

k*6r ->

8/12/2019 0.2S ABT (03.07.2013)

16/21

-* Q 0 k*6h E uadrant 1i3 7umulative )nergy E

k*6h E uadrant #3 7umulative )nergy E

k*6h E uadrant 23i 7umulative )nergy E

k*6h E uadrant 5

0.#0 6ccuracy e&uirement:

The accuracy of parameters measured by meters shall be tested in accordance

with the relevant standards described in clause #." of this specification. Forapparent energy, accuracy testing shall be done in accordance with the provisionsof anne3ure @ 0 of =$ 1580?1. Time accuracy of the meter should be as peranne3ure @ 1G of =$?1580?1.

0.#G )lectrical e&uirement:

The electrical re&uirement of meter shall be as specified in the relevant standardsdescribed in clause #." of this specification.

0.# )lectro agnetic 7ompatibility 6nd =nterference e&uirements:

The meter shall meet )= / )7 re&uirements as specified in the relevantstandards described in clause #." of this specification.

0.2" echanical e&uirement:

The meter shall meet the mechanical re&uirements as specified in the relevantstandards described in clause #." of this specification.

0.21 7limatic =nfluence e&uirement:

The meter shall meet dry heat / cold / damp heat cyclic test re&uirements as perthe relevant standards described in clause #." of this specification.

9.0 LIFE E:PECTANCY;

The meter shall be designed to meet the life e3pectancy of #" years..0 TESTS FOR THE METER;

.1 TR;) T)$T$

The energy meters offered shall be fully type tested at C69< accredited Test

8/12/2019 0.2S ABT (03.07.2013)

17/21

."2 TR;) T)$T$ TO 9) 7OC(A7T)( OC TDO AC=T$ OF )67% TR;) 6C()67% 6T=C@ 6$ ;) )

8/12/2019 0.2S ABT (03.07.2013)

18/21

Tests are not re&uired to be performed on bought out accessories at the works ofthe meter manufacturer. Furnishing test certificates of such bought out accessoriesfrom the original e&uipment manufacturers shall be deemed to be satisfactoryevidence. =nspection of the tests at $ub E contractors works will be arranged bythe supplier whenever re&uired.

."8 outine / 6cceptance Tests:

6ll acceptance tests as specified at clause Co. ."5 shall be got conducted in thepresence of ;urchasers representative as per relevant standards described inclause Co. #." of the specification. The following additional tests shall also becarried out on one meter of each type from each lot offered for inspection as perrelevant standards on the selected samples. $hock test *ibration test agnetic induction of e3ternal origin and *erification of temper and fraud detection features and values as per

specifications and subse&uent agreement between the supplier andpurchaser.

Cote: Dhere testing facilities do not e3ist at the suppliers works for shock andvibration testing as per relevant standards, these two tests may be carriedout in accordance with the provisions of =$: 12"1" with latestamendments.

a 6ll routine tests as stipulated in the relevant standards and described inclause Co. #." of the specification shall be carried out and routine test?certificates / reports shall be submitted to the purchaser for approval andalso placed inside individual meter packing.

b The recommended sampling plan and the criteria for acceptance of lotoffered for inspection shall be as per anne3ure ) of =$?1580 / 1 forthe meters covered in this specification.

."0 Tests 6t $ite:The ;urchaser reserves the right to conduct all tests on the meters after arrival atsite and the 7ontractor shall guarantee test certificate figures under actual serviceconditions.The supplier should furnish detailed write up for the procedure to be adopted forerror testing of the meters in the laboratory and at site/field.

10.0 INSPECTION;

6ll the tests -as mentioned at clause .5 and inspection shall be made at the place ofmanufacturer unless otherwise specially agreed upon by the bidder and purchaser at thetime of purchase. The bidder shall afford the inspection officer -s representing thepurchaser all reasonable facilities without charges, to satisfy himself that the material isbeing furnished in accordance with this specification. The purchaser has the right to havethe tests carried out at his own cost by an independent agency whenever there is a disputeregarding the &uality of supply.

The inspection may be carried out by the purchaser at any stage of manufacture / beforedispatch as per relevant standard.

=nspection and acceptance of any material under the specification by the purchaser shallnot relieve the bidder of his obligation of furnishing material in accordance with thespecification and shall not prevent subse&uent re!ection if the material -s is /are found to

be defective. The bidder shall keep the purchaser informed in advance about themanufacturing programme so that arrangements can be made for inspection.

The purchaser reserves the right to insist for witnessing the acceptance/routine testing ofthe bought out items.

The bidder shall give 1+ days -for domestic supplies / 2" days -in case of foreignbidders advance intimation to enable the purchaser to depute his representative forwitnessing the acceptance and routine test. The inspection charges would be to thepurchasers account.

Cote for foreign 9idder:The bidder shall indicate the name-s of reputed inspection agencies and their inspectioncharges clearly for each lot. The inspection charges will be borne by the purchaser.

".#$ 69T?"2."0.#"12-6B$ ;age 1G of #1

8/12/2019 0.2S ABT (03.07.2013)

19/21

%owever, the purchaser reserves the right to appoint at its cost any inspection agency tocarry out the inspection.

11.0 !UALITY ASSURANCE PLAN:The 9idder shall invariably furnish the following information along with his bid, failingwhich his bid shall be liable for re!ection. =nformation shall be separately given forindividual type of material offered.

a $tatement giving list of important raw materials, names of sub?suppliers for the rawmaterials, list of standards according to which the raw materials are tested, and thelist of tests normally carried out on raw materials in presence of 9iddersrepresentative and copies of test certificates.

b =nformation and copies of test certificates as in -a above in respect of bought outaccessories.

c

8/12/2019 0.2S ABT (03.07.2013)

20/21

$ubmission of engineering documents re&uired by the specification. The =nspection of materials and components on receipt. eference to the 7ontractors work procedures appropriate to each activity =nspection during fabrication/construction Final inspection and test

12.0 DOCUMENTATION;

6ll drawings shall conform to =nternational $tandards Organi4ation -=$O L6 series ofdrawing sheet / =ndian standards specification =$ E 8+8. 6ll drawings shall be printed andsoft copy in the form of 7(-s shall be supplied. 6ll dimensions and data shall be in $.=.units.The bidder shall furnish the following drawings and documents alongwith bid:a Two sets of drawings showing clearly the general arrangements, fitting details,

electrical connections, etc.b Technical leaflets -Asers manual giving operating instructions for the meter.The successful bidder shall be re&uired to furnish the following drawings and documents

at the time of supply of the meters.a )ight sets of operating manuals / technical leaflets shall be supplied to each

consignee for the first instance of supply.b One set of routine test certificates shall accompany each dispatch consignment.c The acceptance test certificates in case of pre E dispatch inspection or, in cases

where inspection is waived, routine test certificates duly approved by the purchaser.

13.0 PAC

8/12/2019 0.2S ABT (03.07.2013)

21/21

c The successful bidder shall supply one Co. meter of each type ' rating identical tothe ones to be supplied along with all associated software, within one month fromthe date of contract agreement. The sample-s will be got tested at the discretion ofthe purchaser at any of the =ndian standard laboratories. 6ll the testing charges shallbe borne by the purchaser, but in case of failure of the meter to pass the tests, thesame will be recovered from the bidder. The bidder can commence the supply onlyafter approval of sample. The unsuccessful type testing will render the contract to becancelled.

d Tests to be conducted:i $tarting condition test.ii ;ower consumption test.iii epeatability of error test.iv 6ccuracy re&uirements.v *oltage variation test -? 2" to > #".vi Tamper and fraud protection test:

Tests to prove compliance to this specification.vii 67 and (7 magnetic immunity test.viii Temper logic and threshold values.i3 7apability of meter to transmit/communicate data as per specifications.

1.0 GUARANTEE:

The e&uipments supplied should be guaranteed for its performance for a minimum periodof five -+ years from the date of commissioning or five and a half -+X years from thedate of receipt of last consignment in stores, whichever date is earlier. The e&uipmentfound defective within the above guarantee period shall be repaired / replaced by thebidder free of cost within one month of receipt of intimation.

The bidder shall also furnish an undertaking that there shall be no drift in the accuracyclass of the meter for a minimum period of 1" years from the date of supply.

1".0 AFTER SALES SUPPORT AND TRAINING:

The supplier shall provide competent and timely after sales service support. The suppliershall also arrange to provide free training at the places as desired by the purchaser for useof meter / 7omputer $oftware, etc.