14278

832019 14278

httpslidepdfcomreaderfull14278 116

IS 14278 1996

Indian Standard

STRESSMEASURINGDEVlCESlNCONCRETEANDMASONRYDAMS-INSTALLATIONCOMMISSIONINGANDOBSERVATIONS-

CODEOFPRACTICE

ICS 93160

JBIS 1995

BUREAU OF INDIAN STANDARDSMANAK BHAVAN 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

832019 14278


Hydraulic Structures Instrumentation Sectional Committee RVD 16

FOREWORD

This Indian Standard was adopted by the Bureau of Indian Standards after the draft finalized bythe Hydraulic Structures Instrumentation Sectional Committee had been approved by the RiverValley Division Council

A stress meter is designed to measure total force over a sensing area It is used for measurementof stresses in any direction depending upon its mounting

Unbonded strain gauge type and vibrating wire type instruments are used for measuring thecompressive stress in concrete and masonry dams This standard covers details regarding boththese types of instruments

832019 14278


IS 14278 1995

Inrsquodkm Standard

ANDMASONRYDAMS-INSTALLATION

COMMISSIONINGsAND OBSERVATllONS-CbDEOFPRACTICB

1 SCOPE

This standard covers the details of installationcommissioning and observation procedures ofunbonded strain gauge type and vibrating wiretype stress meters in concrete and masonrydams

2 REFERENCEThe Indian Standard IS 7436 (Part 2 ) 1974lsquoGuide for types of measurements for structuresin river valley projects and criteria for

choice and location of measuring instruments

Part 2 Concrete and masonry damsrsquo is anecessary adjunct to this standard

3 INSTRUMENT

31 IJnbonded Strain Gauge Type Stress Meter

311 Unhonded strain gauge type stress meter( see Fig 1 ) consists of a mercury filled diaph-ragm shaped like a plate with a ampamber thatcontains measuring unit protruding from oneside The diameter of sensing diaphragm is atleast 12 times its thickness The centre of theplate under measuring unit chamber is BexibIe

165 mm

RUBBER STOPPER

SHEILD TUBE

I MERCURY-

-CONDUCTOR CABLE

I 0 RING SEAL AND ANCHOR C

rSEALING COMPOUND

- STRAIN UNIT

-ELASTIC WIRE

CERAMIC SPOOL

r INTERNAL DIAPHRAGM

h-SPONGE RUBBER7

188 mm-I

FIG 1 TYPICAL UNBONDED STRAIN GAUGE T~pa STRESSMETER

ABLE

1

832019 14278


IS 14278 1995

because of a cavity in the centre of the plateThe mercury causes plate to deflect elasticallyan d i r e c t n r n n n r t i n n t n t h e i n t e n r i t w Af n r -~ rm r --_ _ __ ya vr rdquo I ldquo_ I_ lsquolsquob rdquoldquoldquolsquo V p aCi)UUlsquobon the draphragm The measuring unit consistsof an unbonded strain gauge type strain meterwhich measures the intensity of stress Thevariation in intensity of stress changes the

resistances of the wires The ratio of theseresistances is a measure of stress The changein resistance also occurs due to temperatureHence the temperature can be determined bymeasuring the total value of change of resis-tances of wires in series Therefore a requisitetemperature correction needs to be applied toarrive at the actual stress value The measure-ment readings should be taken by test setworking on Wheatstonersquos bridge principle andrecorded on a suitable data form

32 Vibrating Wire Type Stress Meter321 Vibrating -ire type stress meter is a flatjack type device with pinch tube using vibratingwire principle (see Fig 2 ) The device consistsof a silicon oil filled flat jack connected by tubeto a vibrating wire pressure transducer A pinchtube is also provided connected to flat jackThe vibrating wire press ure transducer consistsof a high strength s tee1 wire fixed to a diaph-rl-0 nF hhr _Prdquo_^l_ldquo_ldquol^_rdquo -Ll t-rdquolsquo-6rdquorsquo ldquo1 LrdquoC rJIGJJUG~L~tllsuucsI) WlsquollGifl lsquo1ia111GJits vibration frequency as per stress applied tothe flat jack and sensed as oil pressure opera-

ting on the pressure transducer diaphragm Acoil mag net assembly ( see Fig 2 ) is used topluck or induce vibrations in steel wire Adigital read out unit which also supplies excita-tion sirrnal to thr roil mnonet aaramhlv dknlnvne ---- -- _-__ __ ldquolsquo_b_lsquo lsquoT----dJ -lsquo-r-_ -

y PRESSURE PALAT JACK

the frequency of vibrations A calibrationchart or an equation or a simple gauge factorrnnlrrl I t h r m ~ n l f a r t l l r r r e r r r l t n l r i PT -DUYYImUJ UC a ULUUIYm w I Uzrdquo rdquo sampI II -

mine the stress from the frequency reading

322 A stress meter using a circular platesimilar to the one used in unbonded strain

gauge type stress meter is also available withvibrating wire type strain gauge instead ofunbonde1 strain gauge

4 DETERMINATION OF NUMBER ANDLOCATION

The locations for stress measurements in therepresentative blocks selected to install stressmeters are generally decided by the designer ofthe dam in comparison to the strain meterlocations Generally strain meters are employedto detrmine stresses as the stress meters are

costlier However stress determination fromstrain measurements is affected by factors suchas temperature effect and autogeneous growthof concrete Yet installation of stress meters ona11 points of interest is not economically viablewhen compared to installation of strain metersalong with no-stress-strain meter The

optimum combination of strain meters andstress meters would be to install at least a stressmeter close to the strain meter installationlocation (see IS 7436 [ Part 2 ) 1974 1

5 INSTALLATION

51 Satisfactory operation of a stress meter isdependent almost entirely upon obtaining fullcontact between the meter plate surface andadjacent concrete The installation procedure____

- _-_

----3w_I_

E L 240 mm 1 240 mm ---I0

r - _ __ _ _ _

I1

ICOIL IIAGNETASSEMRLY 1

iI I-- i

i

i i----------------I

FIG 2 VIBRATING IRE TYP EFLATJ AC KSTRESS BTER

2

832019 14278


1s 14278 1995

used therefore shall avoid formation of airand eliminate as far as practicable

collection of water beneath the meter that may

Installation of Unbonded Strain Gauge Type

The ulbonded strain gauge type stressbe placed in horizontal (stem

or vertical (stem horizontal) or sloping) position as described in 522

When concrete has rzached an elevationmm below the finished level of the proposedstress meter cable should be laid up to th-

location of the mter and embeddedIn order to avoid damage to the

fore embedding its ends should bz

sealing compound and tape

fter concrete in the lift is complete andinitially set a conical hole 300 mm at

and 900 mm at top should be dug in it atproposed location of the stress meter Care

taken that the cable is not damaged

On the next day after the concrete hasthe cavity should be cleaned to

all the loose material and water Projec-aggregate corners should be chipped away

brushed to ensure clean surface

Now 6 mm thick layer of mortar consis-of one part cement and two parts sandthan 600 micron sieve should be spread on

e of the hole and levelled Excessiveshould be avoided The mortar layer

be left as such for 1 l2 hours

The seal from the cable end should beand it should be spliced with the ends

the stress meter cable The joint may bey with cable jointer

water on the top of the mortar layerbe removed A plastic mortar consisting

80 g of cement and 120 g of sandthan 600 micron sieve should be preparedjust enough water to retain its piasticity

should be placed in a cone shape inmiddle of the hole Stress meter should now

placed on this mortar cone and pressed downreciprocal rotary motion about vertical

till meter is properly seated and thereno possibility of air bubble or water

below itmeter should be held firmly in place

he hole should be backfilled with concrete75 mm maximum size aggregate The

of the hole should be treated with mrlrtar

before concrete filling to ensure proper bondBackfilling should be done in such a way thatthere is no dislocation or disturbance to themeter Concreting should be finished 75 mmabove the surface of the lift It shouId be pro-tected from traffic till the mortar is thoroughlyset Figure 3 illustrates the entire process of

installation

529 Stress meters could also be placed invertical position ( stem horizontal ) within freshconcrete near top of th- lift In order to carryout this work steps given in 5291 to 5294should be followed

5291 A hole of about 300 mm should be dugat the meter location after concrete placementin lift is comnlptprl--

5292 The meter should be placed in position

and fresh concrete should be placed around inthin layers Cobbles if any should be removedThe place should then be tamped carefully butthoroughly

5293 Care should be taken to check alignmentand position of the meter to ensure properorientation and position as back filling pro-gresses

5294 The area around this work should beprotected till concrete is completely andthoroughly set

5210 Vibrating wire type device with circularplate shown in Fig 4 should be installed in themanner described in 529

53 Installation of Vibrating Wire Type StressMeter

531 Flat Jack Type Stress Meter

5311 The transducer or meter received at thesite should be checked for its functionality byconnecting the transducer cable terminals tothe digital display unit The unit should givefrequency display for no stress applied tometer

5312 The place of installation and measuringdircctioll for the stress meter shouid 1~deter-mined on installation plan and its type andserial number be recorded on the plan

5313 The cable length for each stress metershould be determined according to installationplan and with 10 percent extra allowance

5314 Concrete in immediate vicinity of the

flat jack should be free from coarse aggregatesThus before the filling process the flat jackshould be surrounded by fine grained concreteby hand without leaving any hollow space sothat full pressure acts on total surface of the

3

832019 14278


Is 14278 1995

CABLE EMBEDDED IN LIFT END SEALED

WITH SEALING COMPOUND AND TAPE 1ON DAY FOLLOWIHG PLACEMERT OF Fltl

CHIP OFF PROJECTING AGGREGATE

ICORNERS AN0 BRUSH TO CLEAN SURFATE

REMOVE CONCRETE AFTER INITIAL1 SET LEVEL 6mm THICK tlORpR PAD

SET AND SHAPE DEPRESSION

AS SHOWN j i

PREPARED FROM 2 PARTS SAND AND

ONE PART CEMENT

I

i

STEP 1 STEP 2

AFTER HORTOR PAD HAS SET FOR1rsquo12 HOUR ORY SURFACE ANDPLACE A CC _NF OF FLNE PLASTIC

WORTOR COMPOSED OF 3 PARTS

of SANDANO PARTS

TO EXCLUDE AIR BUBBL ESSCREW DOWNSTRESS METER WITH ROTARY MOTION

ARnrdquo s VERTICAL AXIS UNTILL HTERcn

ldquo ldquo ldquoV l

IS SEATrv

STEP 3 STEP L

HOLD METER FIRMLY IN PLACE BRUSH SIDES OF RECESS

WITH NEAT CEMENT MORTOR RUBBED WELL INTO SURFACE

FOR BONO BACKFILL WITH CONCRETE I WET SCREENED TO

75 mm MAXIMUM SIZE I TO 75mm ABOVE TOP OF LIFT

TOP OF LIFT

STEP 5

FIG 3 INSTALLATIONROCEDUREF UNBONDED TRAIN GAUGE STRESS METER

flat jack Care should also be taken that thepinch tube is accessible till the lift is complete( see Fig 5 )

5315 Cable should be covered by concrete assoon as possible in order to prevent damage tothe cable as construction work progresses

5316 While setting the concrete of the firstfilling or lift may cause a gap around the flatjack due to shrinkage The flat jack may be

inflated to bridge the gap

first filling of concrete over the stress meter alength of about 50 cm is available for pinching

5318 The pinching should be started at thetip of the tube

5319 The stress meter should be connected toreadout instrument during the process of pinch-ing Frequency reading should be monitoredduring the process When the flat jack makescontact with concrete there will be suddenchange in reading This new reading should

then be recorded5317 The pinch tube provided with the flatjack should have sufficient length SC) hat after

53110 The cable routing should be determi-ned in advance on cable installation plan

4

832019 14278


fs 14278 1995

FIG 4 SECTION HROUGH

lsquo- 38 mm

63 nm

VIBRATINGWIRE TYPE STRESSMETER

PINCH TUBE II

COARSE CONCRETE

WITH CIRCULARPLATE

i

FINE CONCRETE

PRESSURE PAD

PRESSURE TRANSDUCER

Fro 5 INSTALLATION F THEFLAT JACKS-msssMmm

5

832019 14278


53111 Cable should not be exposed on openground without necessary and sufficient protec-tion An open cable is dangerous as it may actas aerial with a danger of impermissibly highvoltage getting induced in the cable by atmo-spheric discharges during rainy season It maybe advisable to have built-in over-voltage

protection inside the transducer53112 The cable may be placed loose in waveline fashion

53113 If necessary the cable may be protec-ted by flexible high pressure hose or tube

blockouts on walls of galleries nearest to thegroup of instruments The reading stations forall embedded instruments in a monolith shouldbe located in that monolith as far as possiblein order to avoid running cable leads acrosscontraction joints Separate terminal boardrecesses for different types of instruments may

be required Where a gallery or similar semi-protected location is not available convenientlyaccessible exterior location may be selectedand the facilities secured against unauthorisedtampering

zq IA -I__ c___ __I_ P l ainQix cabc33114 IIlt Ilet CIlUb ldquoI LrdquoC L

should be terminated immediately in watertightdistribution boxes Care should be taken notto leave cable ends on open ground In casecable ends cannot be connected to distributionboxes immediately it may be protected by

protective cap and appropriate compound (seeFig 6)

Normal gallery lighting may not be usuallyadequate and a supplementary fixture forlighting should be provided at the terminalboard station

54 Identification of Cables and Stress Meters

541 Each stress meter should be identified bya letter prefixed designating the type of instru-ment and numbered subsequently The normalprefix letters used for stress meter are lsquoSMrsquoThe instrument identification number is stampedor punched on a band which is crimped to-thecable about 900 mm from the stress meter endA similar band is crimped about 300 mm from

the free end of the cable In addition a fewmore markers consisting of the identificationnumber marked on white tape and covered withlinen and friction tape should be placed aroundthe cable near the free end

552 Lighting

OUTER JACKET OF CABLE [CABLE CORES

553 Protection from Moisture

To reduce corrosion at the cable terminals audterminal boarci connections usually a seriousproblem in dam galleries an electrical stripheater or incandescent lamp which is to bekept permanently on should be installed withinthe terminal board recess A bulb provided inthe recess for lighting may also serve thispurpose

55 Terminal Boards

554 Installing Terminal Equipment

After all cable leads have been brought into aterminal board recess surplus lengths of cablesshould be cut off and the end of individualconductors prepared for permanent connectionto the panel board or terminal strip Propercare should be taken for identification of thecables and meters

551 Location of Terminal Boards

5511 Permanent facilities for terminating thecable ends and for taking readings should beprovided These should be provided as termi-

nal boards and should be usually located in

6 COLLECTION OF COMPLEMENTARYnATAUcIIrx

61 Collection of related and suppoiting datapertaining to structural behaviour is an integral

part of the instrumentation programme and

IS 14278 1995

SEALING CAP

lsquo BANANA PLUG

SEALING COMPOUND

FIG 6 CABLE END PROTECTION

6

832019 14278


IS 14278 1995

should proceed concurrently with the installa-tion of the instruments and the readings of theembedded instruments Types of informationrequired to support or clarify the instrumentobservation results include the folloving

a) Construction Progress - Schematic conc-

rete or masonry placing chart showing liftplacement dates concrete placing temps-ratures and lift thickness

b) Concrete Mixes -Cement contents water-cement ratios and typical combinedaggregate gradings for interior andexterior mixes

cl

4

e)

Fine Aggregate - Typical fine aggregategradings before and after mixing

Air Entrained -- Amount of entrained air

admixture used how introducedCement Type - Source of procurementphysical and chemical propartics includ-ing heat of hydration

Aggregates - Types geologic classifica-tion petrographic description sourcesand chemical properties

Curing and Insulation - Type and methodof curing type location and duration ofinsulation protection if any

Pool Eievations - Daily reservoir and tail-water elevations

Foundation Conditions - Final rock cleva-tions unusual geological features

Most of the information listed above may beusually available from investigations carried outprior to and during the project design stage ormay be obtained under usual constructioncontrol operations

611 Observers should be alert to detect cracks

or similar evidences of structural distress whichmay develop and record time of occurrenceinitial size and extent and subsequent changesin size and extent and any corrective actiontaken

7 OBSERVATIONS

71 The test set working on WheatstonersquosBridge principle may be used to measure ratioof resistances and series resistance of the stressmeter of unbonded strain gauge type The testset should have accuracy to measure a ratioup to 001 percent and resistance up to 001 ohmrespectively

72 A digital readout unit should be used forrecording observations of vibrating wire typestress meter

73 Frequency of Reading

The maximum interval between the successivereadings should be zs below

Periods

During construction

On installation of meter

First 24 hours

Next 24 hours

Thereafter for next 14 days

Thereafter

During temporary halt inconstruction

During initial filling

nlsquo_ ^ ldquoldquor^_1w rrrgldquoprurlun

First year

Thereafter for next 5 years

Thereafter

Suggested

MaximumIntervalBe trveen

Readings

3 hours

6 hours

Daily

I week

1 month

1 week

15 days

1 month

3 months

NOTE - The interval between successive readings assuggested above is the maximum iliterval that ampampldbe zdopted under normal conditions The intervalsshould b suitably changed in case of unusual occur-rexs like earthquakes floods etc

--

8 RECORD OF OBSERVATIONS ANDMETHOD OF ANALYSIS

81 The observations taken should be suitablyrecorded Recommended proformae for therecord of observations and transfer of obser-

vations on permanent record in the office aregiven in Annex A B and C for unbonded straingauge type and in Annex D E and F for vibra-ting wire type stress meters The data sheetforms may be got printed in advance uponwhich the observations can be noted as theyare taken and for pepX8tiGil Gf pei iiLiii kXii

record A method of analysis of dataobtained by the observations of embeddedmeters is given in Annex C

82 Calibration data should be supplied by the

manufacturer Calibration constant of unbon-ded strain gauge type meters as indicated bythe manufacturer should be revised when longerconductor cables are used The conductorcable introduces an extra resistance which doesnot change with stress thus making the meter

7

832019 14278


IS 14278 1995

less sensitive The equation for revising thecalibration constant for stress meter is

YCrrlzcr+- R

where

Crsquo =

c =

new calibration constant

original calibration constant

Y = resistance of a pair of conductor cablesand

R = stress meter resistance at approximatetemperature to be expected afterembedment

When these types of stress meters are used withan automatic data acquisition or logging system

it is customary to use the calibration constantin terms of voltage change across full bridgeinstead of ratio change The conversionequation is

where

Crdquo = new calibration constant in terms ofmicro volts change per volt ofexcitation per micro-strain and

Ci = ordinary calibration constant on theresistance ratio basis

83 Vibrating Wire Type Stress Meters

831 Zero Reading

8311 Frequency reading should be recordedimm rAiate=lv af ter the end nf n inchino mm ce~~ldquo lsquo-ldquoldquo ersquov rsquoJ --- __rdquo __ __

It is always advisable to recorrsquodlsquohFiampoeixampgwhen meter has reached a state of stable tempe-rature balance with its surroundings The cablelength has no effect on frequency reading ofmeters

832 Measurement and Evaluation

8321 Measurements are carried out at theintervals specified in 73 during various stagesn t n n n t r n r t i n n o n l l a f t r rldquo1 QrdquoIlsquo0amplUYIfirdquolsquoUll cc

8322 The formula generally used for evalua-tion of stress in Nm2 from frequency readingis

Stress = K ( Fo--2) + A

where

K =

Fo =

F=

A=

Gauge factor of the meter inNm2 per Hza

Initial frequency zero freque-ncy reading in Hz

Final frequency reading in Hzand

intercept of the best fit curvegiven by the manufacturer orsupplier

9 SOURCES OF ERRORS

91 The following sources of errors should be

guarded against while taking measurement by

unbonded resistance strain gauge type stressmeter and vibrating wire type stress meter

Bj

b)

cl

d)

e)

T __ t of c-04 Se ln+a4-~ frdquoLOW ldquoldquoILtlgs LGJL ldquo41LCII6J [ Irdquo1

Wheatstone Bridge type instruments)

Loose connections in test set terminals

Loose connections of cable terminals onterminal boards

Imperfect cable splice resulting from-- _____ -ldquorlsquo -c AA-l _--gt_rmpropcr rllllLCLIILlgI IIIrdquoIYIlsquoIu~~ CldquoIullc-tors improper soldered connections orsplice not rendered moisture proof and

Earthing of the readout unit not being

perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )

PROFORMA FOR THE RECORD OF OBSERVATIONS OFUNBONDED STRAIN GAUGE TYPE STRESS METERS -

PRE-EMBEDMENT TESTS

Project Instrument No a Air temperature

Manufacturerrsquos No Wet bulb temperature

Project No

Location

1 RESISTANCE BEFORE CABLE SPLICING

i) White-black ii) White-green

iii) Green-black iv) Resistance one pair

2 RESISTANCE RATIO ( INSTRUMENT ONLY )i) Direct ratio ( white-green-biack j

ii) Reverse ratio ( black-green-white )

3 INDIVIDUAL CONDUCTOR RESISTANCE

i) Length ii) Black

iii) Green

iv) White

4 RESISTANCE OF INSTRUMENT AFTER CABLE SPLICING



5 RESISTANCE RATIO ( INSTRUMENT WITH CABLE )

i) Direct ratio ( white-green-black )


Date of test

Date of embedment

NOTES Name and signature of observer

ANNEX B

( Clause 81 )


FIELD READINGS AFTER EMBEDMENT

Project I Zero Reading

Instrument Previous Reading Reservofr ObserverrsquosNo

Current Reading~-----_h-_-_-_~ r------ -lsquoA-----y LevelDate Resistance Resisrance Date Time Resistance Resistance

Signaturem

( in ohms ) Ratio ( in ohms lsquo Ratio

9

832019 14278


( Clause 81 )

PROFORMA FOR PERMANENT RECORD OF OBSERVATIONS OFUNBONDED STRAIN GAUGE TYPE STRESS METERS -

__v91- mTmlsquorm mTlr(nraIrLKlvlAlYldlY1 KJSLUKU

Project Sheet No

Stress Meter No Location

Calibration Data

Meter resistance at 0 degree C (A) ohms (B)

Change in temperature per ohm change in resistance degree C (C)

Ratio at zero stress ( percent )

Original calibration constant Nm2 ( kgcm2 ) per 00 I ratio change

Calibration constant corrected for leads Nm2 ( kgcm2 ) 0 91 ratio change (D)

Resistance of leads at degree C ohms ( pair )

Temperature corrections- [ ( 80 TD + 67 ) lorsquo - K ] x E x F

80 TD =

s K I

F =Z

Dsrie 1-- -r-I1 IIllC lrdquoLal Lead n_4-rdquoeL=L lsquoF_--__ n -- flLl___1 ClllIJF RCJIW ~angr T--l 0+-rllcIa- fiJLldquollrsquoI- tirdquollliC_--m Total Aetna D -mnln

Resis- Resis- Resis-I~IYIIL D

ratute tance in Ratio ted Stress ted lsquoE tion per Tempe- Stresstance tance tance ldquoC Ratio Percent Nm2 Nma ldquoC rature Nm

ohms ohms ohms Percent ( kgcm2 ) (ampgamp Correc- ( kg tion cmrsquo )

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278


Explanation for columns including analysis co1 10

co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9

Total resistance of meter as measuredin the field with a 4-conductor cablethe meter resistance iS measureddirectly and this column may be leftblank

Resistance of the white and biack

conductors as measured directly duringthe splicing operation As an alterua-tive a reasonably accurate value forlighting may also serve this purpose COI

Resistance of meter excluding cableleads It is obtained by subtractingco1 4 from co1 3

CO1

Temperature of the meter obtained bysubtracting (B) from the cell resistancein co1 5 multiplying the difference by(C) and adding the product to (A)

The resistance ratio of the meter as

measured with the test set

11

12

Total change in resistance ratio( co1 7 ) from a selected initial valueusually the first reading after theconcrete masonry has hardened or atabout 24 h age Proper algebraic signshould be shown

Multiply value in co1 8 by correctedcalibration constant (D) Negative col 13values of the ratio changes (co1 8) indi-cate positive pore pressures Exceptfor minor ratio variation prior to the

development of significant pore pres-sures the cell will not respond reliablyto negative pressures and all entries inco1 9 will represent pore pressure abovethe oil pressure in the cell chamberwhich will be approximately atmos-pheric

IS 14278 1995

It is a sustained modulus of elasticity ofthe concrete as estimated from thelaboratory test or from data or othersources So it is the reduced modulusof elasticity including the effect ofcreep with the duration of time forwhich the temporarv correction is being

applied This sus~ined-mbdui~s--~ill

often be as low as half the ordinarymodulus of elasticity

It is correction per degree Celsius ofchange as computed from the equation

given in the heading of the sheet

It is the total temperature correctionfor the number of degrees temperatureto which it applies Note that thereference temperature is that 24 hoursage in this case Before that age theconcrete is too soft to support such

stress and the correction is consideredto be negligible In rich concrete andspecially when curing temperature isensured the reference temperature needto be taken at 12 hours or some earliertime This choice makes very littledifference and is therefore not impro-ved

It is the actual stress after applying thetemperature correction given in co1 12to the indicated stress given in co1 9Care should be taken to observe the

sign of the stress and the correctionThe reduction in the resistance ratiomeans a compressive stress and thetemperature correction should beapplied so as to reduce the indicatedcompressive stress when the tempe-rature rises and vice versa

11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )

PROFORMA FOR THE RECORD OF OBSERVATIONS OFVIBRATING WIRE TYPE STRESS METERS --

PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature

Wet bulb temperature

Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)

6 Zero reading frequency

7 Date of embedment

Explanation of Instrument Details

1 Model No given by supplier

2 Sl No given by supplier

3 Instrument No as mentioned in location plan by project - say SM 12

4 Gauge factor K given by manufacturer in NmzHzz or kgcmVHz2

5 Intercept A given in Nm2

6 Zero reading frequency before embedment

Project

ANNEX E

I Plrdquo ldquo 0 1 blLcUJG 01 ]

PROFORMA FOR RECORD OF OBSERVATIONS OFVIBRATING WIRE STRESS METERS -

FIELD READINGS

InstrumentNo

Date Zero Reading Current Reading ReservoirFrequency in Frequency in Level in

Hz Hz m

ObserverrsquosSignature

1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )

PROFORMA FOR RECORD OF OBSERVATIONS OFVIBRATING WIRE TYPE STRESS METERS -

PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)

Stress in Nma =or kgcm2

Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2

K ( Poe - Fa ) -I- A

Zero frequency readings in Hz

Current frequency readings in Hz

Date Time Frequency Derived Value

Reading in of Stress in

Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278


Bureau of Indiau Standar ds

BIS is a statutory institution established under the Bureau of Indian Slandardr Acf 2986 topromote harmonious development of the activities of standardization marking and quality

certification of goods and attending to connected matters in the country

f rsquonnrr ivht--r --v-lsquo

BIS has the copyright of all its publications No part of these publications may be reproduced

in any form without the prior permission in writing of BIS This does not preclude the free use

in the course of implementing the standard of necessary details such as symbols and sizes typeor grade designations Enquiries relating to copyright be addressed to the Director

( Publications ) BIS

Revision of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments Standards

are also reviewed periodically a standard along with amendments is reafRrmed when such review

indicates that no changes are needed if the review indicates that changes are needed it is taken

up for revision Users of Indian Standards should ascertain that they are in possession of the

latest amendments or editon by referring to the latest issue of BIS Handbook and ampStandards

Monthly Additionrsquo

This Indian Standard has been developed from Dot No RVD 16 ( 86 )

Amendments hued Since Publication

Amend No Date of Issue Text Affected

BUREAU GP INDIAN STANDARDS

Headquarters- -- nL-_~ a n-L- 1__ OL-1 _C__ lsquoL___ XT_-_ _ati I Tr-ampeManalc nnavan 7 Danauur 3nan ampalar Mar-g IYCW UCl l l l I IUUUL

Telephones 331 01 31 331 13 75

Regional Offices

Central Manak Bhavan 9 Bahadur Shah Zafar Marg

NEW DELHI 110002

Eastern l14 C I T Scheme VIII M V I P Road Maniktola

CALCUTTA 700054

Northern SC0 335-336 Sector 34-A CHANDIGARH 160022

Southern C I T Campus IV Cross Road MADRAS 600113

Western Manakalaya E9 MIDC Marol Andheri ( East )

BOMBAY 40009 3

Telegrams Manaksanstha

( Common to all Offices )

Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92

Branch AHMADABAD BANGALORE BHOPAL BHUBANESHWAR COIMBATOREFARIDABAD GHAZIABAD GUWAHATI HYDERABAD JAIPUR KANPUR

LIJCKNOW PATNA THIRUVANANTHPURAM

832019 14278


Hydraulic Structures Instrumentation Sectional Committee RVD 16

FOREWORD

This Indian Standard was adopted by the Bureau of Indian Standards after the draft finalized bythe Hydraulic Structures Instrumentation Sectional Committee had been approved by the RiverValley Division Council

A stress meter is designed to measure total force over a sensing area It is used for measurementof stresses in any direction depending upon its mounting

Unbonded strain gauge type and vibrating wire type instruments are used for measuring thecompressive stress in concrete and masonry dams This standard covers details regarding boththese types of instruments

832019 14278


IS 14278 1995

Inrsquodkm Standard



1 SCOPE





3 INSTRUMENT



165 mm

RUBBER STOPPER

SHEILD TUBE

I MERCURY-

-CONDUCTOR CABLE


rSEALING COMPOUND

- STRAIN UNIT

-ELASTIC WIRE

CERAMIC SPOOL


h-SPONGE RUBBER7

188 mm-I


ABLE

1

832019 14278


IS 14278 1995














5 INSTALLATION


- _-_

----3w_I_

E L 240 mm 1 240 mm ---I0

r - _ __ _ _ _

I1


iI I-- i

i

i i----------------I


2

832019 14278


1s 14278 1995






























installation















3

832019 14278


Is 14278 1995







AS SHOWN j i


ONE PART CEMENT

I

i

STEP 1 STEP 2



of SANDANO PARTS




IS SEATrv

STEP 3 STEP L





TOP OF LIFT

STEP 5











4

832019 14278


fs 14278 1995


lsquo- 38 mm

63 nm


PINCH TUBE II

COARSE CONCRETE

WITH CIRCULARPLATE

i

FINE CONCRETE

PRESSURE PAD

PRESSURE TRANSDUCER


5

832019 14278














552 Lighting




55 Terminal Boards









IS 14278 1995

SEALING CAP

lsquo BANANA PLUG

SEALING COMPOUND


6

832019 14278


IS 14278 1995





cl

4

e)











7 OBSERVATIONS





Periods

During construction


First 24 hours

Next 24 hours


Thereafter




First year


Thereafter

Suggested


Readings

3 hours

6 hours

Daily

I week

1 month

1 week

15 days

1 month

3 months


--







7

832019 14278


IS 14278 1995


YCrrlzcr+- R

where

Crsquo =

c =







where




831 Zero Reading







where

K =

Fo =

F=

A=





9 SOURCES OF ERRORS




Bj

b)

cl

d)

e)







perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


IS 14278 1995

Inrsquodkm Standard



1 SCOPE





3 INSTRUMENT



165 mm

RUBBER STOPPER

SHEILD TUBE

I MERCURY-

-CONDUCTOR CABLE


rSEALING COMPOUND

- STRAIN UNIT

-ELASTIC WIRE

CERAMIC SPOOL


h-SPONGE RUBBER7

188 mm-I


ABLE

1

832019 14278


IS 14278 1995














5 INSTALLATION


- _-_

----3w_I_

E L 240 mm 1 240 mm ---I0

r - _ __ _ _ _

I1


iI I-- i

i

i i----------------I


2

832019 14278


1s 14278 1995






























installation















3

832019 14278


Is 14278 1995







AS SHOWN j i


ONE PART CEMENT

I

i

STEP 1 STEP 2



of SANDANO PARTS




IS SEATrv

STEP 3 STEP L





TOP OF LIFT

STEP 5











4

832019 14278


fs 14278 1995


lsquo- 38 mm

63 nm


PINCH TUBE II

COARSE CONCRETE

WITH CIRCULARPLATE

i

FINE CONCRETE

PRESSURE PAD

PRESSURE TRANSDUCER


5

832019 14278














552 Lighting




55 Terminal Boards









IS 14278 1995

SEALING CAP

lsquo BANANA PLUG

SEALING COMPOUND


6

832019 14278


IS 14278 1995





cl

4

e)











7 OBSERVATIONS





Periods

During construction


First 24 hours

Next 24 hours


Thereafter




First year


Thereafter

Suggested


Readings

3 hours

6 hours

Daily

I week

1 month

1 week

15 days

1 month

3 months


--







7

832019 14278


IS 14278 1995


YCrrlzcr+- R

where

Crsquo =

c =







where




831 Zero Reading







where

K =

Fo =

F=

A=





9 SOURCES OF ERRORS




Bj

b)

cl

d)

e)







perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


IS 14278 1995














5 INSTALLATION


- _-_

----3w_I_

E L 240 mm 1 240 mm ---I0

r - _ __ _ _ _

I1


iI I-- i

i

i i----------------I


2

832019 14278


1s 14278 1995






























installation















3

832019 14278


Is 14278 1995







AS SHOWN j i


ONE PART CEMENT

I

i

STEP 1 STEP 2



of SANDANO PARTS




IS SEATrv

STEP 3 STEP L





TOP OF LIFT

STEP 5











4

832019 14278


fs 14278 1995


lsquo- 38 mm

63 nm


PINCH TUBE II

COARSE CONCRETE

WITH CIRCULARPLATE

i

FINE CONCRETE

PRESSURE PAD

PRESSURE TRANSDUCER


5

832019 14278














552 Lighting




55 Terminal Boards









IS 14278 1995

SEALING CAP

lsquo BANANA PLUG

SEALING COMPOUND


6

832019 14278


IS 14278 1995





cl

4

e)











7 OBSERVATIONS





Periods

During construction


First 24 hours

Next 24 hours


Thereafter




First year


Thereafter

Suggested


Readings

3 hours

6 hours

Daily

I week

1 month

1 week

15 days

1 month

3 months


--







7

832019 14278


IS 14278 1995


YCrrlzcr+- R

where

Crsquo =

c =







where




831 Zero Reading







where

K =

Fo =

F=

A=





9 SOURCES OF ERRORS




Bj

b)

cl

d)

e)







perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


1s 14278 1995






























installation















3

832019 14278


Is 14278 1995







AS SHOWN j i


ONE PART CEMENT

I

i

STEP 1 STEP 2



of SANDANO PARTS




IS SEATrv

STEP 3 STEP L





TOP OF LIFT

STEP 5











4

832019 14278


fs 14278 1995


lsquo- 38 mm

63 nm


PINCH TUBE II

COARSE CONCRETE

WITH CIRCULARPLATE

i

FINE CONCRETE

PRESSURE PAD

PRESSURE TRANSDUCER


5

832019 14278














552 Lighting




55 Terminal Boards









IS 14278 1995

SEALING CAP

lsquo BANANA PLUG

SEALING COMPOUND


6

832019 14278


IS 14278 1995





cl

4

e)











7 OBSERVATIONS





Periods

During construction


First 24 hours

Next 24 hours


Thereafter




First year


Thereafter

Suggested


Readings

3 hours

6 hours

Daily

I week

1 month

1 week

15 days

1 month

3 months


--







7

832019 14278


IS 14278 1995


YCrrlzcr+- R

where

Crsquo =

c =







where




831 Zero Reading







where

K =

Fo =

F=

A=





9 SOURCES OF ERRORS




Bj

b)

cl

d)

e)







perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


Is 14278 1995







AS SHOWN j i


ONE PART CEMENT

I

i

STEP 1 STEP 2



of SANDANO PARTS




IS SEATrv

STEP 3 STEP L





TOP OF LIFT

STEP 5











4

832019 14278


fs 14278 1995


lsquo- 38 mm

63 nm


PINCH TUBE II

COARSE CONCRETE

WITH CIRCULARPLATE

i

FINE CONCRETE

PRESSURE PAD

PRESSURE TRANSDUCER


5

832019 14278














552 Lighting




55 Terminal Boards









IS 14278 1995

SEALING CAP

lsquo BANANA PLUG

SEALING COMPOUND


6

832019 14278


IS 14278 1995





cl

4

e)











7 OBSERVATIONS





Periods

During construction


First 24 hours

Next 24 hours


Thereafter




First year


Thereafter

Suggested


Readings

3 hours

6 hours

Daily

I week

1 month

1 week

15 days

1 month

3 months


--







7

832019 14278


IS 14278 1995


YCrrlzcr+- R

where

Crsquo =

c =







where




831 Zero Reading







where

K =

Fo =

F=

A=





9 SOURCES OF ERRORS




Bj

b)

cl

d)

e)







perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


fs 14278 1995


lsquo- 38 mm

63 nm


PINCH TUBE II

COARSE CONCRETE

WITH CIRCULARPLATE

i

FINE CONCRETE

PRESSURE PAD

PRESSURE TRANSDUCER


5

832019 14278














552 Lighting




55 Terminal Boards









IS 14278 1995

SEALING CAP

lsquo BANANA PLUG

SEALING COMPOUND


6

832019 14278


IS 14278 1995





cl

4

e)











7 OBSERVATIONS





Periods

During construction


First 24 hours

Next 24 hours


Thereafter




First year


Thereafter

Suggested


Readings

3 hours

6 hours

Daily

I week

1 month

1 week

15 days

1 month

3 months


--







7

832019 14278


IS 14278 1995


YCrrlzcr+- R

where

Crsquo =

c =







where




831 Zero Reading







where

K =

Fo =

F=

A=





9 SOURCES OF ERRORS




Bj

b)

cl

d)

e)







perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278














552 Lighting




55 Terminal Boards









IS 14278 1995

SEALING CAP

lsquo BANANA PLUG

SEALING COMPOUND


6

832019 14278


IS 14278 1995





cl

4

e)











7 OBSERVATIONS





Periods

During construction


First 24 hours

Next 24 hours


Thereafter




First year


Thereafter

Suggested


Readings

3 hours

6 hours

Daily

I week

1 month

1 week

15 days

1 month

3 months


--







7

832019 14278


IS 14278 1995


YCrrlzcr+- R

where

Crsquo =

c =







where




831 Zero Reading







where

K =

Fo =

F=

A=





9 SOURCES OF ERRORS




Bj

b)

cl

d)

e)







perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


IS 14278 1995





cl

4

e)











7 OBSERVATIONS





Periods

During construction


First 24 hours

Next 24 hours


Thereafter




First year


Thereafter

Suggested


Readings

3 hours

6 hours

Daily

I week

1 month

1 week

15 days

1 month

3 months


--







7

832019 14278


IS 14278 1995


YCrrlzcr+- R

where

Crsquo =

c =







where




831 Zero Reading







where

K =

Fo =

F=

A=





9 SOURCES OF ERRORS




Bj

b)

cl

d)

e)







perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


IS 14278 1995


YCrrlzcr+- R

where

Crsquo =

c =







where




831 Zero Reading







where

K =

Fo =

F=

A=





9 SOURCES OF ERRORS




Bj

b)

cl

d)

e)







perfect

8

832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


IS 14278 1995

ANNEX A

( Clause 81 )


PRE-EMBEDMENT TESTS



Project No

Location







i) Length ii) Black

iii) Green

iv) White







Date of test

Date of embedment


ANNEX B

( Clause 81 )






Signaturem


9

832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


( Clause 81 )



Project Sheet No


Calibration Data








80 TD =

s K I

F =Z





(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13 (14)

832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278



co1 3

C0i 4

co1 5

co1 6

co1 7

co1 8

co1 9





CO1




11

12




IS 14278 1995










11

832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


IS 14278 1995

ANNEX D

( Clause 81 )


PRE-EMBEDMENT TESTS

Project

Project No

Manufacturer

Location

Instrument Details

Barometric pressure

Air temperature


Date

Time

1 Model No

2 Sl No

3 Instrument No

4 Gouge Factor (K)

5 Intercept (A)


7 Date of embedment








Project

ANNEX E



FIELD READINGS

InstrumentNo


Hz Hz m


1 2 3 4 5 6

12

832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278


IS 14278 1995

ANNEX F

( Clause 81 )


PERMANENT RECORD

Project

Instrument

Calibration Data

Sheet No

Location

1

2

3

4

5

Gauge Factor (K)

Intercept (A)


Fo

P

Nm2 or kgemsHz2

Nm2 or kgcm2






Hz Nma or kgcm2

Remark

1 2 3 4 5

13

832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



832019 14278






















Telephones 331 01 31 331 13 75

Regional Offices


NEW DELHI 110002


CALCUTTA 700054




BOMBAY 40009 3



Telephone

331 01 31

331 13 75

f37 84 99 37 85 61

I 37 86 26 37 86 62

160 38 43

(160 20 25

(235 02 16 235 04 42

1235 15 19 235 23 15

f632 92 95 632 78 58

1632 78 91 632 78 92



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