elevtor process in detail

8/16/2019 Elevtor Process in Detail

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INDIAN INSTITUTE OF TECHNOLOGY KHARAGPUR – 721

No. IIT/S&P/ENQ/NWP/B R AMBEDKAR HALL/ELEVATOR/2012 Date : 07.0 .201

Sub : Supply, erection, testing and commissioning ofan elevator.

Tender Notice No. : 32/2012 13, !ated : 07.0 .201

I!"#a! I!$t#t%te o Te'(!o)o*+ K(a,a*-%, a! I!$t#t%te o Nat#o!a) I -o,ta!'e #! #te$$ea)e" #"$ ,o #, $ #t( -,o e! t,a'3 ,e'o," a!" (a #!* 'a-a #)#t#e$ #! $%--)+ e,e't#o!te$t#!* a!" 'o #$$#o!#!* o 4 5E#*(t6 No$. of 13 passenger (1360 kg) lifts o, 8 9 ; atB R A e"3a, Ha)) o Re$#"e!'e o IIT K(a,a*-%,.

I!te,e$te" -a,t#e$ a+ $% #t t(e#, $ea)e" #"$ %!"e, T oo -)#a!'e statementa*a#!$t ea'( #te o A!!e?%,e I & III t(e,eo! $e e,a))+ & #!"# #"%a))+ $(a)) a)$o e $% #tte".K#!")+ ,e e, to t(e I!$t#t%te e $#te .iit-gp.ac.in @)#!3: te!"e,$ a!" =%otat#o!$ o, 'o -)ete te!"e, "eta#)$. Pa,t#e$ (o a,e !ot e!)#$te" #t( t(e I!$t#t%te a,e a)$o ,e=%#,e" to$% #t o, R1 a)o!* #t( t(e te!"e,.

T(e te!"e, e $e!t #! a $ea)e" -a'3et 'o!ta#!#!* t o $e-a,ate $ea)e" e! e)o-e$ 5o!e o, Te'(!#'a) B#" a!" o!e o, P,#'e B#"6 a)o!* #t( -,e$',# e" te!"e, ee a!" Ea,!e$t Mo!e+De-o$#t 5EMD6 "%)+ $%-e,$',# e" #t( Te!"e, Not#'e No. 32/2012 13, !ated : 07.02.201 tot(e ffice of t)e %ssistant egistrar $Stores urc)ase(, ''T )aragpur, . .

)aragpur Tec)nology, 'N : 421 302 on or before 20.03.2013 upto 2.30 p.m.

For any query pertaining to this bid document, communication be addressed to ExecutiveEngineer (Electrical), Indian Institute of Technology, Kharagpur !"#$%" &'h %$"""*"+" $","+" $-. Fax "+" "", " $%$/

T(e te'(!#'a) #" #)) e e a)%ate" #,$t a!" -,#'e #"$ #)) e o-e!e" o!)+ #! ,e$-e't o t(o$eOEM$/Ve!"o,$ (o a,e o%!" te'(!#'a))+ =%a)# #e" a te, e a)%at#o! o Te'(!#'a) #"$.

T)e Tec)nical bids ill be opened on 20.03.2013 at 3.30 p.m. #! t(e ffice of t)e5&ecutive 5ngineering $5lectrical 6or-s(, ''T )aragpur.

A$$#$ta!t Re*#$t,a,5S&P6o, D#,e'to, IIT K(a,a*-%,

>o-+ to: <

1. P,o . C #t( a ,e=%e$t to %-)oa" t(e te!"e, "o'% e!t #! t(e I!$t#t%tee $#te

2. Not#'e Boa,"

http://www.iitkgp.ac.in/http://www.iitkgp.ac.in/


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Annexure I

B !! "# $u%n& &'

Su((!' n)* In+&%!!%& "n* Te+& n) , C"-- ++ "n n) "#

P%++en)er LIFT.SSu/ He% I Su((!' , Ere & "n

1 Supplying, installation, testing &commissioning of 13 passenger (1360kg) lifts having contract spee of 1!"S#1.$ !"S serving i%erent oors inthe lift shaft as per etailespeci'cations enclose an as un er

*ocation of *ifts +s per ra ing

i Spee 1 !"S # 0 !"S

ii -loors /

ii ravel 13.2 !eters(appro )

v Stopes & opening $#$

4 5ontroller +.5. varia levoltage & varia lefre 7uency

4i +utomatic rescue evicecomplete ith ry maintenancefree atteries as re7uire .

vii 8peration !icroprocessorase single automatic pushutton # simple selective

collective # uple collectiveselective ith # ithout

viii "o er 1$4, 3 phase, $0 9:, ires system

i ype of oors

(a) 5ar "o er operate , centreopening hori:ontal sli ingstainless steel scratch proof (moon rock 'nish).


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( ) *an ing oors !S oors'nishe ith spray painting ofa rove sha e.

) + han rail not less than600mm long at ;00mm a ove

oor level to e ' e a nit ?uantity

5omprehensive maintenance of lifts hich inclu e routine,preventive & reak o nmaintenance for perio of 'veyears inclu ing repair #replacement of orn out items

ith minimum o ntime anarranty & guarantee of

repaire # replace items aftercompletion of one year

!onth 60


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Annexure II

See the 9an Sketch of @levator

TECHNICAL SPECIFICATION FOR LIFTS

1.0 SCOPEThis section deals with technical requirements of lift installation, its components, safetydevices various type of controls and methods of operation.

2.0 DRIVE MACHINERY :

2.1 Electric SupplThree phase, 50 c/s, 415 V electric supply shall be made available. The entire liftequipment should be suitable for operation at 10 ! to " #0 ! of the rated supply

volta$e.

2.2 !e"rle## $"c%i&eThe $earless machine shall consist of a motor, traction sheave and brea%&drum or bra%edisc completely ali$ned on a sin$le shaft. 'earless machine shall be (.). $earless withVVV* drive.

2.' S%e"(e# :+heaves and pulleys shall be of hard alloy, cast iron, +' iron or steel and free from

crac%s, sand holes and others defects. They shall have machined rope $rooves. Thetraction sheave shall be $rooved to produce proper traction and shall be of sufficientdimension to provide for wear in the $roove. The deflector sheave shall be $rooved so asto provide a smooth bed for the rope. The deflector or secondary sheave assemblieswhere used shall be mounted in proper ali$nment with the traction sheave. +uchdeflector sheaves shall have $roves lar$er than rope diameter as specified in clause of -+ 14 5 art " 4 " +ec 2 3 #000. The si e of all the sheaves shall be in accordancewith clause .4 of -+ 14 54 art " 4 " +ec 2 3 #000. herever necessary suitable

protective $uards may be provided.

2.) S%"*t +e # :+hafts which supports sheaves, $ears, couplin$ and other members which transmittorque shall be provided with ti$ht fittin$s %eys of sufficient stren$th and quality.

2., -r" e :The lift drive machinery shall be provided with an electro&ma$netic bra%e or motor operated bra%e normally applied by means of sprin$s in compression when the operatin$device is in off position. The bra%e shall be suitably curved over the bra%e drum or bra%edisc and provided with fire proof friction linin$. The operation of bra%e shall be smooth,

$radual and with minimum noise. The bra%e shall be desi$ned to be of sufficient si e

http://www.iitkgp.ac.in/downloads/sketch_elvtr.pdfhttp://www.iitkgp.ac.in/downloads/sketch_elvtr.pdf


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and stren$th to stop and hold the car at rest with rated load. The bra%e should be capableof operation automatically by the various safety devices, current failure and by thenormal stoppin$ of the car. The bra%e shall be released electrically. -t shall also be

possible to release the bra%e manually, such releases requirin$ the permanent applicationof manual force so as to move the lift car in short stops for this purpose suitable bra%erelease equipment wherever necessary shall be supplied with each lift installation andthe same shall be %ept in sa$e custody to prevent misuse.

#.5.1 6and windin$ wheel or handle 3

(t times of lift stoppin$ due to any reasons, it shall be possible to move the lift car to thenearest landin$ manually. The manual operation shall be by means of a windin$ wheelor handle mounted on the end of the motor shaft. The up or down direction of themovement of the car should be clearly mar%ed on the motor or at suitable location. (warnin$ plate written in bold si$nal red colour advisin$ the maintenance staff to switchoff the mains supply before releasin$ the bra%e and operatin$ the wheel is to be

prominently displayed.

2./ -e"ri& # :7earin$s shall be either of the anti&friction metal sleave type with oil reservoirs, self,lubrication, oil $au$es, capped filler openin$s and drains of the ball roller or sinteredtype sub8ect to oil flood lubrication or $rease lubrication.'rease lubricated bearin$s shall have $rease $un connections and drain plu$s. The

bearin$s and lubricant reservoirs shall be dust ti$ht and shall incorporate effective sealsto prevent lea%a$e. The outer end of the bearin$s shall be closed with a removable oilti$ht plate. Thrust bearin$s shall be of the ball or roller type and shall have two sets of

balls or rollers arran$ed to minimi e bac%lash for efficient wor%in$.'.0 TYPE OF CONTROLS :

'.1 V"ri" le V lt" e V"ri" le Fre3ue&c :-ncomin$ mains () power is first rectified to 9) and then inverted to providecontrolled () current to the elevator drive. recision monitorin$ of motor speed and car direction, position and load enable the pulse width of the () power supplied to themotor to be ad8usted to ensure that elevator speed is maintained very accurately to anideal profile.Thus in VVV* controls pulse width modulation control of () motors has followin$

advanta$es compared with the older servo controlled elevators 3&a2 Total control at all sta$es of the motion cycle.b2 ( consistent fully ad8ustable smooth ride.c2 7etter levelin$ accuracy under all conditions.d2 ( hi$her power factor.e2 :ower startin$ currents.f2 ;ner$y savin$ throu$h reduced power consumption.

).0 INSTALLATION ASPECTS :


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).1 It"ll"ti & i& $"c%i&e r $ " :ift machine room to accommodate the drivemachinery, controller, etc., shall as far as possible be located on top of the lift shaft. Thelayout of equipment there should be such as to allow free movement of maintenance

personnel inside.


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pit floor must be made without puncturin$ the water proofin$. The e?pansion 8oints inthe $uide rails shall be so desi$ned as to avoid 8er%s in the lift car.


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strai$ht vertical face e?tendin$ below the level of the finished car floor and not less thanthe depth of the levelin$ one plus >.5mm. The bottom of $uard shall e?tend >00mm for lifts upto speed of 1.5 mps A 1000 mm for lifts above speed of 1.5 mps below verticalface and beveled at 15B an$le from the vertical. -t shall be seamed to car platformconstruction and be reinforced and braced.

/.7 Cle"r"&ceThe clearance between the top of the car and the soffit of the lift shaft roof, bottom of the car and the pit floor, the buffers, etc., and the clearness between the car and the liftwell, between the car and the landin$ sill, between two lift cars in the same shaft etc,shall be provided as per -+ 14 5 art 1,# A 42.

/.8 C"r Apr &9 L"&6i& T%re#% l6# "&6 Sill#(n apron shall be fitted to the car platform such that no dan$erous $ap e?ist at any timewhen the landin$ door is openin$. Thresholds and sill plates shall be provided at thelandin$s also. The distance between landin$ sill and the sill on car platform shall not be

more than 0mm.

/. I&ter ; c $$u&ic"ti & # #te$

/. .1 Thou$h para .4. of -+ 14> 5 part # / sec 12 3 #000 recommends for provision of either an emer$ency si$nal or a telephone inside the car but as a $eneral e?perience. -t isseen that over a period of time these devices become inoperative due to one reasons or the other. Therefore, in order to have at least one device of communication functionin$at all the times, as an alternative arran$ement, provision of both i.e. telephone with

minimum two connections " one at the operatorCs room and other at $uard room and theemer$ency si$nal with re&char$eable batteries as source of supply shall be made in thelift cars.

/. .2 The device used for emer$ency si$nals should incorporate a feature that $ives immediatefeedbac% to the car passen$ers that the device has wor%ed prop0erly and the si$nal has

been passed on to the intended a$ency. This shall be achieved by pressin$ of button formcontrol room which shall $ive audio si$nal to the passen$ers in the car.

/. .' rovision of $roup indicator panel in the control room shall be made to indicate wor%in$of lifts.

/. .) E$er e&c P 4er Suppl * r li*t c"rThis shall include suitable secondary battery with tric%le / boost char$e arran$ement andinverter power pac% with necessary contactors for supplyin$ the li$ht fi?tures in the liftcar. The same battery shall also feed the alarm bell and communication equipment.

/.10 R"ti& # "&6 Itructi


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-nside the lift car, the lift supplier shall also provide a stainless steel metallic plateindicatin$ the rated load and detailed instructions for the passen$ers. This shall bemounted at a suitable place.

/.11 Li*t C"r I&teri r Fi&i#%The side, rear and facia panel shall be of scratch free stainless steel. The floorin$ shall bewith mm thic% V) tiles for passen$er lifts. The *alse ceilin$ in the lift car shall be

crafted from mild steel powder coated to suitable colour with )*: lamps and fandiffuser s2 in different colour.

/.11.1 Oper"ti& P"&el ii6e t%e c"rThe car operatin$ panel shall be of metal, flush mounted and duly finished to match thecar interior dDcor and shall contain all the devices as may be specified dependin$ uponthe type of operation required. -n addition separate illuminated panel for indication thefloor and direction may be provided on the top or the door way. (ll switches shall befade proof and the devices shall be of suitable quality.

;ach device and its operatin$ position shall be le$ible fade proof and mar%ed.

7.0 CAR AND LANDIN! ENTRANCES

The car and landin$ doors shall be of flush type sheet steel only for power operation.The flush type may further be of sin$le slidin$, centre openin$ or two speedconstruction. ower operated car and landin$ doors shall be so desi$ned as not to in8ureany person durin$ their closure by means of provision of a safety pressure switch whichshall cause the doors to reopen on the sli$htest pressure. -n case of power operateddoors, it shall be possible on power failure, to open them from the car side. (ll the

openin$s for passen$er lifts shall be #000 mm clear in hei$ht. *or $oods lift vertical by " partin$ doors or collapsible $ates as specified shall be used. The door openin$ andclosin$ shall be accomplished smoothly and quic%ly without undue noise, vibration andshoc% and their movements shall be cushioned and chec%ed at both limits.

7.1 C"r 6 r#

>.1.1 The car door shall be hun$ from the top


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>.1.# ( potential cause of accidents could be the attempts made to open the landin$ door loc% of lower floor in case the car stops away from floor level due to power failure. +ince thecar door can be opened in case of power failure so as to improve the ventilation andavoid claustrophobic situations etc. as outlined in -+ 14 5 part # / sec 123 #000 para10.E.1, there is a tendency amon$ trapped passen$ers to ma%e attempts to open anyaccessible landin$ door which can be opened by a electromechanical latch in the landin$doors as the loc% is accessible throu$h open car doors. This attempt in panic may result

in accidental fall into the lift pit. -n order to ensure that the trapped passen$er so notattempt openin$ the landin$ door, the electromechanically latch should be so desi$nedthat it is inaccessible or invisible to the passen$ers in the car.

>.1. -n order to avoid accidental closure of doors while boardin$ or ali$htin$ the car, atamper proof infrared curtain coverin$ almost the entire hei$ht of the door should be

provided in the lift doors.

7.2 L"&6i& 6 r#

;ach landin$ door shall be complete with loc%s, header, sills, frames, rims,han$er supports with cover plates, facia plates etc. The finished wor% shall be stron$,ri$id, and neat in appearance. lan surfaces shall be smooth and free from warp or

buc%le.


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inconspicuous location, or are very small in si e or are in one lan$ua$e only. To ma%ethese instructions serve the intended purpose and not a mere compliance of relevant -+clauseF that these instruction should be displayed at a conspicuous location with lar$er and understandable script and should be written in 6indi, ;n$lish and re$ional lan$ua$e

where official re$ional lan$ua$e is notified2.

8.0 LEVELLIN!

(ll lift s2 shall be incorporated with suitable floor levelin$ devices. -n case of lifts withautomatic power operated doors and with (.). VVV* controller a separate level devicefor automatic levelin$ with levelin$ accuracy of 5 mm shall be incorporated.

.0 CO5NTER # li6 t pe #li6i& ui6e #% e#The car shall be provided with solid or sprin$ loaded swivelin$ $uide shoes withrenewable liners, where the lift car speeds are upto and includin$ 1 < +. The cars withthe speeds beyond 1 < + shall be provided with sprin$ loaded $uide shoes withrenewable liners or the $uide shoes shall be of roller type.

10.' R ller t pe ui6e #% e#;ach roller type shoe shall be of an approved type consistin$ of rollers assembled on asubstantial metal base and mounted as to provide continuous contact of all rollers with


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the correspondin$ $uide rail surfaces under all conditions of load and operation. Therollers shall run on the three finished $uide rail surface and shall operate quietly.

10. .1


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;very lift installation shall necessarily be provided with the followin$ safety features3

12.1 The safety $ear shall be provided in accordance with -+ 14 5 art " 4 " +ec & 42 3#001, each type of car safety shall be actuated by a speed $overnor.

12.2 ! (er& r ; The car safety shall be operated by speed $overnor located overhead anddriven by $overnor rope suitably connected to the car and mounted on its own pulleys.The rope shall be maintained in tension by means of wei$hted or sprin$ loaded tensionsheaves located in the pit. 'overnor shall be provided for lifts with a travel of more than5.5 meters. The $overnor rope shall be not less than mm in dia and shall be made of steel or phosforbron e. These shall be in accordance with -+ 14 5 part & 4 / sec " 42 3#001. 'overnor for car safety $ears shall be ad8usted to actuate the safety $ear at thefollowin$ speeds3&

a2 *or rated speeds upto - m/s ma?imum $overnor trippin$ speed shall be either 140 percent of rated speed or 0. m/s, which ever is hi$her. *or rated speed above 1

m/s ma?imum $overnor nor trippin$ speed shall be 115 per cent of the rated speed plus 0.#5 m/s.

b2


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nearest obstruction above it, no pro8ection on the cart shall stri%e any part of theoverhead structure.

1#.4. :ifts with speeds over 1.#5 meters/ second shall have the normal terminal stoppin$device located on the car or on the $uide rails or in the machine room.

12., 5lti$"te Ter$i&"l S4itc%e#

These shall be provided in accordance with the statutory requirements and standin$ practices. hen provided these shall arran$e to stop the car automatically within top and bottom clearances independently of the normal terminal switches but with the buffersoperative. These shall be in accordance with clause of -+ 3 14 5 art " / +ec " 12 " #000.

1#. -u**er# ; ?IS 1)//, ?P"rt ) > Sec 1@ ; 2001@

7uffers shall be oil resistant rubber pad type for speeds upto 0.#5 mps and sprin$

/oil type for speed upto 1.5 mps and only oil type for speeds hi$her than 1.5 mps.7uffers shall be suitable for installation in the space available. 7uffer anchora$e

at pit floors shall be installed avoidin$ puncturin$ of water proofin$.=il buffers of the car and counter wei$ht shall be of the sprin$ return type or of

$ravity type.The partial compression of sprin$ return oil buffers when the car is in level with

terminal landin$ will not be acceptable.(ll buffers shall be tested at manufactures wor%s and a copy of the test report

shall be submitted.hen the lift car rests on fully compressed buffers there shall be at least 0cms

clearance between the lowest point in its car frame and any obstruction in the pite?clusive of buffers and their supports. +imilarly when the lift car cross head is 0 cmfrom the nearest obstruction above it, no pro8ection on the car shall stri%e any part of theoverhead structure.

The contractor must indicate the name of buffer manufactures, buffer stro%e Acertified ma?imum loads.

12.7 D r L c #;lectro " mechanical door loc% shall be provided for all the landin$ doors and they shall

be such that the doors cannot open unless the car is at rest at the particular landin$. -tshall not be possible to move the car unless all the landin$ doors and the car door areclosed and loc%ed. This requirement however does not apply when the lift car is

provided with automatic levelin$ devices and in such cases, it shall be permitted to movethe car with both the doors open in the levelin$ one for the purpose of levelin$.

(ll the loc%s and contacts shall conform to -+ 3 14 5 art 1/+ec 2 " #001 shall be positive and pass the prescribed endurance and reliability test from a reco$ni edtestin$ laboratory. They shall be so located as to be inaccessible to un&authori ed

personnel. The electromechanical latch should be so desi$ned that it is inaccessible or invisible to the passen$ers in the car.


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12.8 Ot%er #"*etie#7esides these safety devices mentioned above, motor operated electro&mechanical bra%e

)lause 1. 2 counter&wei$ht $uards )lause .12 alarm bell, emer$ency door loc% releaseoperatin$ %ey and associated safety and other safety requirements shall also be included.

1'.0 LIFT OPERATIONS

1'.1 Duple= C llecti(e Selecti(e Oper"ti &


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1'.2 Aut $"tic r up #uper(i# r c &tr l

1 .#.1 'eneral operatin$ principalThe calls re$istered inside the car as well as the landin$s are answered in the sequence inwhich the floors are reached irrespective of the sequence in which the buttons have been

pressed. =nly one car will stop in response to any one landin$ call and will be thenearest car travellin$ in the correspondin$ direction of the call. hite this car is stoppin$at this landin$, the call will be automatically cancelled to prevent other cars stoppin$a$ainst the same call.

1 .#.# (utomatic selection of traffic pro$rammeThe $roup supervisory control continuously e?amines traffic conditions in the buildin$and automatically puts into operation the pro$ramme which can best cope with thedemand at any particular time. This is fully automatic and requires no supervision or attendant. To suit the traffic demand in the buildin$, suitable traffic pro$rammersavailable3

a2 Kp ea% ro$ramme,b2 9own ea% ro$ramme,c2 Kp 9own -nterfloor ro$ramme, andd2 Li$ht ro$ramme,

a2 Kp ea% ro$ramme 3& The $roup supervisory control responds to the increasin$influ? of passen$ers at the main landin$ in the mornin$ hours, at the start of wor%,

by automatically switchin$ on the up pea% pro$ramme. The cars are dispatched

form the main landin$ automatically at a pre&determined interval after the previousdispatched car. The J:eaves *irstC si$nal is transferred instantaneously from the car dispatched to another car at the main landin$. The car answers the re$istered callsin the natural sequence of the floors and returns directly to the main landin$ after last passen$er has been dischar$ed. (t the main landin$ they are %ept for a

predetermined time for ta%in$ new passen$ers. 6owever, a car starts its up travelthe moment it becomes fully loaded, without waitin$ for the dispatch interval tolapse.

b2 9own ea% ro$ramme 3& (n intense traffic flow from the upper floors towardsmain landin$ will automatically switch on the down pea% pro$ramme. The cars,

when fully loaded at upper floors, travel directly to the main landin$ and after dischar$in$ the passen$er, immediately start up to answer further down calls,which ensures equal service to all floors.

c2 Kp 9own -nterfloor ro$ramme3 & ( steady traffic between main floor and upper floor, and between floor to floor causes automatic switchin$ on of the interfloor

ro$ramme. +pecific cars are assi$ned to answer specific calls by traffic analy er so that the calls are handled most efficiently. The cars are so well distributed thatevery call $ets equal service with short waitin$ intervals.


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(s soon as the number of calls drop to occasional calls only such as at ni$ht, thecars $et automatically par%ed in their assi$ned ones to $ive personali ed servicewith minimum lift travel. -f no calls are re$istered for some time the motor $enerator sets are automatically switched off.

d2 Li$ht ro$ramme 3& hen the traffic ceases to occasional calls only, thesupervisory control automatically switches over to Li$ht ro$ramme. (ll carsremain par%ed at the main landin$ with doors closed, but are at all times ready

for operation. =ne of the lifts has its J:eave firstC si$nal li$hted. =n pressin$ of call button at the main landin$, the doors of this particular lift open and the

passen$er can travel with the lift. The same lift also responds to landin$ callsfrom above. The moment this car leaves the main landin$ the J:eave *irstCsi$nal is transferred to a second lift. *urther passen$ers enterin$ main lobbywill ta%e this second lift. This second lift also responds to landin$ calls fromabove if one lift can no lon$er cope with the demand. (fter these lifts haveanswered their calls, the one reachin$ the main landin$ last will retain theJ:eave *irstC si$nal. Thereby, the service is practically confined to one lift aloneand motor $enerator sets of the remainin$ lifts remain switched off. -f no callsare re$istered for sometime, the meteor $enerator of the stand by lift alsoautomatically be switched off. The motor $enerator will start up a$ain, themoment the call is received. The number of lifts $oin$ into action isautomatically re$ulated to 8ust so many as are necessary to cope withoccasional traffic sur$e.

-n case where more than lifts installed in a ban%, a better utili ation of theselifts can be obtained by two additional pro$rammers to deal with heavier traffic in eachdirection in difficult time. These are -2 6eavier JKpC pro$ramme ii2 6eavier 9= LC

pro$ramme2.

i2 6eavier JK C ro$ramme 3& This shall require the cars to ma%e more stops inthe up direction, necessitatin$ more time for the up travel. *or this purpose theautomatic traffic analy er shall dispatch cars from both terminal atautomatically ad8usted time intervals so that the cars are equally spaced, thusreducin$ passen$er waitin$ interval this pro$ramme caters for the trafficwhich is li%ely to be in both directions but predominantly in the up directione.$. immediately after the mornin$ pea% or after lunch.

ii2 6eavier J9= LC ro$ramme 3& This shall require the cars to ma%e more

stops in the down direction and the dispatch times shall be ad8ustedaccordin$ly by the traffic analy er.-f any of the cars in the $roup develops any defect it shall be automaticallydisconnected from the $roup control until it is rectified.-n the event of failure of automatic dispatch system the lifts shall function byau?iliary means to avoid any disruption of service.(udio visual indication shall be provided to brin$ such failures to notice.

The lifts shall be desi$ned for attendant operation as described under sin$lesimple?2 selective collective operation car e?cept as follow3&


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a2 The indicatin$ li$hts in car shall be operative to inform the attendantwhen to start loadin$ a car at a terminal and when to leave the terminal.

b2 :andin$ call by pass switch and car reversal switch and switches shall beeffective and load wei$hin$ devices shall be inoperative.

c2 )all above si$nal shall be illuminated when ever a call is re$istered at alandin$ above the car location indicatin$ to attendant that car is to

proceed upwards. hen the hi$hest call has been answered the li$ht shall

be e?tin$uished indicatin$ to the attendant that when the car is started itwill proceed downward.

1).0 CONTROLLIN! E 5IPMENT

The movement of the car shall be electrically controlled by means of a controller locatedin the machine room.

1).1 C &tr l circuit#

The control circuit shall be desi$ned to the type of lift specified for safety operation. -tshall not be possible to start the car unless all the car and landin$ doors are fully closedand landin$ doors loc%ed. The circuit shall have and independent fuse protection for fault and over loads and be arran$ed so that earth fault or an open circuit shall not createunsafe condition. The circuit shall be so arran$ed that for the stoppa$e of the car atspecified landin$ or for actuation of a contactor by emer$ency switches or operation of safety $ears the system shall not depend upon the completion or maintenance of anelectrical circuit to cut off power supply and apply the bra%es. This requirement is notapplicable to dynamic bra%in$ and speed control devices.

1).2 Ter$i&"l - "r6#(ll wirin$ for e?ternal control circuits shall be brou$ht to a terminal board with meansof identification of each wire.


19/33

a2 The car speed shall be less than the rated speed not e?ceedin$ 0. 5 meters/sec.b2 The car movement shall be possible only on the application of the continuous

pressure on a button. -t shall be so mounted to prevent any inadvertent operation.

14. . *ireman +witch3&*ireman switch with $lass to brea% for access shall be provided at $round or main floor for all the lifts. The operation of this switch shall isolate/or cancel all calls to all the lifts

and the lifts will stop at the ne?t nearest landin$ if travellin$ upward. The doors will notopen at this landin$ and the lifts will start travellin$ to $round floor. -f these werealready travellin$ down, they will $o strai$ht to $round floor direct without stoppin$enroute.

14. .4 -nspection facility3(n -nspectorCs chan$e over switch and set of test buttons shall be provided in thecontroller. =peration of the -nspectorCs chan$e over switch shall ma%e both the car andlandin$ buttons inoperative and permit the lift to be wor%ed in either direction frommachine room for test purposes by pressin$ correspondin$ test buttons in the controller.-t shall not however interfere with the emer$ency stop switches inside the car or on thetop of the car.

14. .5 +afety line indicators3-f specified visual tell tale li$hts may be provided to monitor the conditions of faults inthe safety line of the lift for easier fault findin$. These indicators will remain lit whensafety circuits are normal.

=ne indicator shall be provided for each safety on the controller. -f any indicatorsfail to li$ht up as the lift proceeds in its sequence of operation, there shall be visual

indication of the safety line open circuit and also its location for easier fault findin$.

1).) C &tr l 4iri&

14.4.1 irin$ in machine room 3&ower wirin$ between the controller and main board controller to various landin$s shall

be done in heavy $au$e conduit or metal duct A shall conform to -.;. Gules 1E5 and) 9. +pecifications for electrical wor%s. *ollowin$ $eneral principles shall befollowed in wirin$.

a2 i2 )ontrol cables carryin$ 9) and power cable carryin$ () shall not be run in thesame conduit or metal duct and they shall be laid as per -.;. rules.

ii2


20/33

b2 (t least 5 percent with a minimum of 5 unconnected spare wires shall be availableout of all the lines to be provided in the wirin$ harness from the midway 8unction

bo? to the machine room.c2 There shall be a master isolatin$ switch *use associated with the controller heavy

duty load brea%, quic% ma%e quic% brea% type T A L preferably interloc%ed withcontroller cabinet door. -solator handle shall have provision for e?ternal loc%in$ inoff position.

(ll relays shall be suitable for lift service and shall incorporate adequatecontact wipe for reliable operation. Gelays shall operate satisfactorily between 0

percent to 110 percent of their volta$e.


21/33

14.4. ;arthlin$3


22/33

is completed by the (G9 the elevator is automatically switched over to normaloperation as soon as normal power supply resumes.

1/.' -n case the normal supply resume durin$ (G9 in operation the elevator will continue torun in (G9 mode until it reaches the nearest landin$ and the doors are fully opened. -f normal power supply resumes when the elevator is at the landin$, it will automatically beswitched to normal power operation.

1/.) (ll the lift safeties shall remain active durin$ the (G9 mode of operation.

1/., The battery capacity should be adequate so as to operate the (G9 at least seven times aday provided the duration between usa$e is at least 0 minutes.

1/./ 'round floor floorin$ finish2 :evel " 5 I 50

1/.7 *oundation Top :evel &M 50I 500

1/.8 :ift it 9epth from 'r. *loor *inish :evel " .150


23/33

>.)ode of ractice for -nstallation andmaintenance of 6ydraulic :ift -+ 14 >1 " 1EEE

. +pecifications for hoistway door&loc%s -+ >>54 " 1E>5

E.Gules for the desi$n, installation testin$ andoperation of lifts, escalators and movin$ parts -+ 1> 5 & 1E>5


24/33

%NN578 5 '''

*5N5 %9 T5 S %N! + N!'T' NS

516 9ast !ate of Submission of Sealed "ids :20.03.2013 upto 2.30 p.m .

T)e Tec)nical bids ill be opened on 20.03.2013 at 3.30 p.m. in t)e ffice of t)e5&ecutive 5ngineering $5lectrical 6or-s( , ''T )aragpur.

526 ayment Terms erformance *uarantee: 0 -a+ e!t #)) e a"e o! $%''e$$ %)#!$ta))at#o! a!" 'o #$$#o!#!* "%)+ 'e,t# #e" + t(e E?e'%t# e E!*#!ee,5E)e't,#'a) Wo,3$6. A$% o 10 o t(e #! o#'e a)%e $(a)) e ,eta#!e" a$ Security !eposit to a,"$

erformance *uarantee . T(e $e'%,#t+ "e-o$#t $o ,eta#!e" a+ e ,e %!"e" o! $% #$$#o!o Ba!3 8%a,a!tee to a,"$ Pe, o, a!'e 8%a,a!tee o, t(e e=%# a)e!t a)%e o $e'%,#t+

De-o$#t a)#" o, one year arranty period plus si&ty days ",a ! o! a!+ 'o e,'#a)a!3.

No a" a!'e/ o #)#Fat#o! $%--o,t #$ -a+a )e a*a#!$t $%--)+ o $to,e$.

I! t(e e e!t o a#)%,e to "e)# e, t(e $to,e$ e+o!" t(e $-e'# #e" "ate )#=%#"ate" "a a*e$ G1 -e, o!t( o, -a,t t(e,eo #! ,e$-e't o t(e a)%e o $to,e$ #)) e "e"%'te" $% e't to a

a?# % o J a)te,!ate)+ t(e o,"e, #)) e 'a!'e))e" a!" t(e %!"e)# e,e" $to,e$-%,'(a$e" ,o e)$e (e,e at t(e ,#$3 a!" e?-e!$e o t(e e!"o,.

5 6 6arranty/*uarantee n site support: ne +ea, o!$#te 'o -,e(e!$# e OEM a,,a!t+,o t(e "ate o $%''e$$ %) #!$ta))at#o! a!" 'o #$$#o!#!*. T(e OEM$/A%t(o,#Fe"

D#$t,# %to,$ / Dea)e,$ %$t atta'( 'e,t# #'ate a o%t t(e#, a te, $a)e$ a!" $e, #'e a'#)#t#e$$%--o,t o, o!


25/33

576 rice: P,#'e $(o%)" e o! ,ee "e)# e,+ at $#te a$#$. T(#$ $(a)) e #!')%$# e o a))ta?e$ a!" summary cost o tota) # -)e e!tat#o! e #!"#'ate". P,#'e #" $(o%)"#!')%"e o)% e "#$'o%!t #.e. -,#'e o, =%a!t#t+ 0 100 1 0 200 #te $. E?'#$e D%t+E?e -t#o!/>%$to D%t+ E?e -t#o! >e,t# #'ate a!" I!te,o%!t,+/Re*#o!a)/StateD#$t,# %to,$ /Dea)e,$/Ve!"o,$ to =%ote #t( a)#" a%t(o,#Fat#o! 'e,t# #'ate 'a-a #)#t+ to $a)e a!"$e, #'e o t(e -,o"%'t$.

5 6 %cceptance of Tender: T(e A%t(o,#t+ o IIT K(a,a*-%, "oe$ !ot #!" #t$e) to a''e-tt(e )o e$t -,#'e" #" a!" ,e$e, e$ t(e ,#*(t to ,e e't a!+ o, t(e e!t#,e te!"e, #"$ ,e'e# e"

#t(o%t a$$#*!#!* a!+ ,ea$o! t(e,eo . T(e a%t(o,#t+ a+ a)$o "e'#"e to e -a!e) o,e t(a!o!e OEM o, t(e#, 'e,t# #e" a%t(o,#Fe" "#$t,# %to,$/"ea)e,$ a!" #? a -,#'e a!" o, t(e-,o"%'t $-e'# #'at#o!$ o e,e" + "# e,e!t 'o -a!#e$/ ,a!"$ 'o -)#a!t to #!# %

$-e'# #'at#o!$ a$3e" #! t(e te!"e,. T(#$ #$ #! #e o t(e $-e't,% o -,o"%'t$ a a#)a )e #!t(e a,3et ,e=%#,e e!t$ o t(e a'%)t+/,e$ea,'(e,$ a!" -a,t#'%)a, '(o#'e o t(e #!"e!te,$.

5106 5&tra


26/33

$1@( ast erformance of t)e endors ill be ?udged at t)e time of Tec)nical5valuation.

5206 T)e 'nstitute does not bind #t$e) to o e, a!+ e?-)a!at#o! to t(o$e #""e,$ (o$e te'(!#'a)#"$ (a e !ot ee! o%!" a''e-ta )e + t(e Te'(!#'a) E a)%at#o! >o #ttee o t(e

I!$t#t%te.

5216 "idders s)ould e!')o$e t(e o))o #!* "o'% e!t$: 5#6 >e,t# #'ate o Re*#$t,at#o! / T,a"e L#'e!$e5##6 E!)#$t e!t o, 5R16 'o -)ete #! a)) ,e$-e't5##6 Atte$te" 'o-+ o PAN 'a," Se, #'e Ta? >ST/VAT ,e*#$t,at#o! -a-e,$5###6 Ba!3e, $ So) e!'+ >e,t# #'ate.5# 6 A%"#te" $tate e!t o a''o%!t$ a!" IT ,et%,!$ o, t(e )a$t t(,ee +ea,$5 6 A%t(o,#Fe" D#$t,# %to,$/Ve!"o,$ %$t $% #t a--,o-,#ate a%t(o,#Fat#o!

'e,t# #'ate a!" )ette, ,o t(e#, OEM$ o, -a,t#'#-at#o! #! t(e $a#" te!"e,.5 6 Na e a!" a"",e$$ o -a$t $at#$ a'to,+ $%--)#e$ o, #!# % t(,ee ')#e!t$ to

(o $%'( #te $/$to,e$ (a e ee! $%--)#e" $(o%)" e e!t#o!e" #! t(ete'(!#'a) #".

5 ##6 >o-+ o a!"ato,+ te$t ,e-o,t$ !at#o!a) te$t#!*/,e)#a #)#t+ a!" e!"%,a!'e te$t,e-o,t$ et'. 'e,t# #e" o, 'o!"%'te" at t(e a!% a't%,#!* $#te *,a!te" + t(e

%,ea%$/=%a)#t+ 'o!t,o) "e-a,t e!t$/!at#o!a) te$t#!* )a o,ato,#e$.5 ###6 >o-+ o -,o"%'t )#te,at%,e o, (#'( t(e -,#'e$ (a e ee! =%ote".5#?6 A ,#te %- o! $e, #'e a!" a#!te!a!'e 'a-a #)#t+ #t#*at#o! o ,#$3$ o,

,ea3"o ! a!" ,e-)a'e e!t 'a-a #)#t+ #t( t(e e$'a)at#o! $%--o,t at,#? $%**e$te"o, t(e I!$t#t%te. Ve!"o,$ %$t #!"#'ate t(e#, $a)e$ a!" $%--o,t $e, #'e 'e!t,e #! I!"#a

a!" t(e#, -)a! to a"",e$$ #$$%e$ a o%t $e, #'e$ a#!ta#!#!* #!# % $e, #'e#! e!to,+ et'.

5?6 S#*!e" 'o-+ o t(e te!"e, "o'% e!t #t( 'o -a!+ $ea) a*,ee#!* to t(e te, $ &'o!"#t#o!$ a!" "e')a,at#o!.

52 6 %ll tenders are to e $% #tte" #! t(e o #'e o t(e A$$#$ta!t Re*#$t,a, 5Sto,e$ &P%,'(a$e6 IIT K(a,a*-%,. T(e #"$ 5te'(!#'a) a!" -,#'e #"$6 o!'e $% #tte" $(a)) e t(e-,o-e,t+ o t(e I!$t#t%te a!" $(a)) !ot e ,et%,!e" to t(e e!"o, #! %t%,e.

52 6 T)e person/officer signing t(e te!"e,/ #" "o'% e!t$ $(o%)" e "e)e*ate" #t( a!a--,o-,#ate Po e, o Atto,!e+ 5"%)+ e!"o,$e" + a Nota,+ P% )#'6 + t(e >(#e E?e'%t# eO #'e/Ma!a*#!* D#,e'to, o t(e >o -a!+ to $#*! $%'( "o'% e!t$.

$2;( pening of rice "ids : T(e P,#'e B#"5$6 o o!)+ t(o$e e!"o,5$6 (o a,e o%!" te'(!#'a))+=%a)# #e" #)) e o-e!e" a!" t(e $a e #)) e o-e!e" e o,e t(e te'(!#'a))+ =%a)# #e"

e!"o,5$6. T)e date for opening of price bids ill be notified separately.

52 6 Te!"e,e, o, (#$/(e, a%t(o,#Fe" ,e-,e$e!tat# e 5 #t( -,o-e, a%t(o,#Fat#o! )ette, o, atte!"#!*

o-e!#!* o te'(!#'a) #"$ a!" a)$o o, o-e!#!* o -,#'e #"$6 a+ '(oo$e to e -,e$e!t att(e t# e o o-e!#!* o Te'(!#'a) B#"$/P,#'e B#"$.

$24( ' T%NT

1. D#,e'to, a+ a''e-t o, ,e e't a!+ o, a)) t(e #"$ #! -a,t o, #! %)) #t(o%t a$$#*!#!* a!+,ea$o! a!" "oe$ !ot #!" (# $e) to a''e-t t(e )o e$t #". T(e I!$t#t%te at #t$ "#$',et#o!

a+ '(a!*e t(e =%a!t#t+/%-*,a"e t(e ',#te,#a/",o- a!+ #te o, -a,t t(e,eo at a!+t# e e o,e -)a'#!* t(e P%,'(a$e O,"e,.

2. A #" $% #tte" #t( a)$e #! o, at#o! #)) !ot o!)+ e ,e e'te" %t a)$o t(e


27/33

OEM/ e!"o, #)) e "e a,,e" ,o -a,t#'#-at#o! #! %t%,e te!"e,#!* -,o'e$$.

. T(e OEM$/Ve!"o,$ !ee" to $% #t a 'e,t# #'ate "%,#!* o-e!#!* o te'(!#'a) #"$ t(att(e+ a,e !ot '%,,e!t)+ "e a,,e" o, )a'3)#$te" #! IIT K(a,a*-%, o, a!+ $%--)#e$-,o"%'t$ o, $e, #'e$ o, at -,e$e!t #! a!+ !at#o!a) o,*a!#Fat#o! o, e"%'at#o!a)#!$t#t%te/%!# e,$#t+.

. I! 'a$e o a!+ "#$-%te t(e "e'#$#o! o t(e D#,e'to, o t(#$ I!$t#t%te $(a)) e #!a) a!"

#!"#!* o! t(e #""e,$.

. I! 'a$e t(e "%e "ate o, o-e!#!* te!"e, (a--e!$ to e a (o)#"a+ t(e $a e #)) eo-e!e" o! t(e !e?t o,3#!* "a+. T(e t# #!*$ #)) (o e e, ,e a#! %!'(a!*e". P)ea$eNote t(at t(e I!$t#t%te ,e a#!$ ')o$e" o! Sat%,"a+ & S%!"a+.

A$$#$ta!t Re*#$t,a, 5S&P6o, D#,e'to, IIT K(a,a*-%,

T5+AN'+%9 "'! ! +8 5NT

%NN578 5 '

< %T T "5 < ''T A% %* 8

1. Na e o t(e Te!"e,e, :

2. Stat%$ o t(e Te!"e,e, :5atta'( "o'% e!t$ # ,e*#$te,e"'o -a!+/-a,t!e,$(#-/-,o-,#et+$(#-6

3. W(et(e, OEM/,e-,e$e!t#!* o,e#*! -,#!'#-)e :5atta'( 'o-+ o 'e,t# #'ate/a%t(o,#Fat#o!6

E. Deta#)$ o 3e+ to- o #'#a)/a%t(o,#Fe" o #'#a) :5atta'( "eta#)$6

;. Deta#)$ o t#eo -a!#e$ 5RO>6 ,e'e#-t$ "%)+ a%t(e!t#'ate" +>(a,te,e" A''o%!ta!t :

4. >%,,e!t )#$t/a"",e$$ o ')#e!t$ (e,e $# #)a, ate,#a)(a$ ee! $%--)#e" a!" $%''e$$ %))+ o,3#!* :

. Na e o t(e e!"o, $ t(,ee )a,*e$t ')#e!t$ to (o$# #)a, -,o"%'t$ a!" $e, #'e$ e,e e?te!"e" & a o%!to t,a!$a't#o!/a!!%a) #))$ to $%'( ')#e!t$ :


28/33

10. Na e a!" a"",e$$ o Ve!"o, $ a!3e,$ a!"atta'( a So) e!'+ >e,t# #'ate ,o t(e Ba!3 o, a

#!# % a o%!t o R$. 20.00 La3(. :

11. I!'o e Ta? Pe, a!e!t A/' No.5atta'( 'o-+6 :

12. !etails of 5 !/"an- !raft No., issuing branc) and date :

>e,t# #e" t(at a)) a o e #! o, at#o! a,e 'o,,e't to t(e e$t o +/o%, #! o, at#o! 3!o )e"*e a!"e)#e .


29/33


30/33

< G 1

ToThe 9eputy Ge$istrar+tores A urchase +ection-ndian -nstitute of Technolo$y+%"r" pur ; 721 '02 ?


31/33

11. a2 *inancial )apability in rupees2 :b2 (nnual turn over last three years2c2 (udited balance sheet last three years2d2 -T returns filed last three years2e2 T-L / V(T / +T Ge$. LoCs.

12. Ge$istration/Trade :icense Lumber and date :attested copy to be enclosed2

1'. 9ru$ licence number if you deal with medicine :chemicals, alcohol, sprit, lab rea$ents etc.2

1). ;?perience, with credentials :documents if any, to be enclosed2

1,. hether it is a roduction Knit :if yes, please specify location and area,number of s%illed, semi&s%illed A uns%illedemployees, number of qualified ;n$ineer andlist of machinery and facilities available,whether in ; O, availin$ any ta? benefit etc.2

1 . hether havin$ a ermanent (ccount Lumber :if yes, mention the ward number, circle and

)ommissioner of -ncome Ta? under which you arere$istered, enclose copy of (L card2

17. +pecimen +i$nature of the roprietor/ :(uthori ed artner/)hief ;?ecutive/+i$natory

9;):(G(T-=L

- do hereby declare that all particulars furnished by me are true and correct to the best of myinformation, %nowled$e and belief. - understand that --T Nhara$pur can adopt any pre&qualification toidentify suitable vendor s2 for a particular quotation/tender invitation and items, and conduct visit toour premises for verification.


32/33

+AA@B>C@ 4

ODEL BANK GUARANTEE FOR AT FORFURNISHING E D

Dhereas EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE(thereinaftercalle the Ften ererG) has su mitte their o%er ateEEEEEEEEEEEEEEEEEEEEEEEEE for the supply of EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE. (hereinafter callethe Ften erG) against the purchaserHs ten er Aotice Ao.EEEEEEEEEEEEEEEEEEEEEE

IA8D +** !@A y these presents that D@EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE. of EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE.having our registere oJce atEEEEEEEEEEEEEEEEEEEEEEEEEEEEE are oun unto

EEEEEEEEEEEEEEEEEE.. (hereinafter calle the F"urchaserG) in the sum of EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE. for hich payment ill antruly to e ma e to the sai "urchaser, the Kank in s itself, its successors an assigns ythese presents. Seale ith the 5ommon Seal of the sai Kank thisEEEEEEEEEEEEEEE. =ay of.................................................................20 EEEE

9@ 58A= 8AS 8- 9 S 8K* + 8A +C@

(1) f the ten erer ith ra s or amen s, impairs or erogates from the ten er in anyrespect ithin the perio of vali ity of this ten er.

(2) f the ten erer having een noti'e of the acceptance of his ten er y the "urchaseruring the perio of its vali ity

(a) f the ten erer fails to furnish the "erformance Security for the ue performance of the contract.

( ) -ails or refuses to accept#e ecute the contract.D@ un ertake to pay the "urchaser up to the a ove amount upon receipt of its 'rst ritten

eman , ithout the "urchaser having to su stantiate its eman , provi e that in itseman the "urchaser ill note that the amount claime y it is ue to it o ing to the

occurrence of one or oth the t o con itions, specifying the occurre con ition orcon itions.

his guarantee ill remain in force up to an inclu ing $ ays after the perio of ten ervali ity an any eman in respect thereof shoul reach the Kank not later than the a ove

ate.

(Signature of the authori:e oJcer ofthe Kank)

Aame an esignation of the oJcer


33/33

Seal, name & a ress of the Kank ana ress of the Kranch

32

elevtor process in detail

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