400A, 60% Duty Cycle – SMAW/TIG Part A

Page 1 of 4

PART A

IGBT based Inverter controlled Welding Power Source for SMAW/TIG welding (400 A, 60% duty cycle)

SECTION – I: Qualifying Criteria

The BIDDER has to compulsorily meet the Qualifying criteria indicated in SECTION –I to get qualified. Otherwise the technical offer will not be considered.

S. No. REQUIREMENTS VENDOR’s RESPONSE

1.0 Only BIDDER /VENDOR (OEM) who have a minimum of last TEN Years (as on date of opening of tender) of Continuous Experience in Design, Manufacture & Supply of “IGBT based Inverter controlled Welding Power Sources for SMAW/TIG Welding”for Radiographic Quality SMAW/TIG welding applications, are eligible to quote for this tender.Vendor shall indicate the actual no. of years of experience in the field.

2.0 Only those vendors (OEMs) should quote, who have commissioned in the last (5) years, at least200Nos. of the model quoted against this tender of “IGBT based Inverter controlled Welding Power Source for SMAW/TIG welding”with a rating of400A - 60% Duty Cycle

EITHER (i) in at least one country other than the country of origin to establish vendor's (OEM's) global business activity OR (ii) in India. The name and contact addresses of the customers to whom the machines have been supplied has to be furnished with details. Indicate the number of suchwelding machines sold in India.

3.0 Number of “IGBT based Inverter controlled Welding Power Source for SMAW/TIG welding” supplied & commissioned till date.

4.0 Year of Launch of the Offered Model in this tender.

5.0 The quoted model of Welding Power Source shall be complying withat leastone of the Standards as given below:

1. IEC 60974-1:2012 Edition 4.0 2. BS EN 60974-1/2012 3. ANSI/IEC 60974-1: 2008 4. JIS C 9300-1:2006/AMENDMENT 1:2008 5. NEMA EW 9-2012

A document certifying or declaration for complying with the above standards shall be submitted with the technical offerwhich will be subject to verification by BHEL.

400A, 60% Duty Cycle – SMAW/TIG Part A

Page 2 of 4

S. No. REQUIREMENTS VENDOR’s RESPONSE

6.0 Vendor to submit TWO Performance certificatessatisfying all the following conditions (as on original date of opening tender) (suggestive format is given as annexure): a) Performance Certificates from any TWO customers for

satisfactory performance of minimum 25 Nos of the quoted model against this tender, from each of the customers, for a minimum period of one year from the date of commissioning (as on original date of opening of tender), supplied in the last five years,EITHER(i) in the country other than the country of origin OR(ii) in India, especially from Heavy Engineering / Fabrication Public/Private sector companies like Utility Boiler Manufacturers, Ship Building, Heavy duty Site fabrication, Large Heat Exchanger & Pressure Vessels manufacturers etc.

b) Performance certificates to be submitted as Original Certificate or through E-mail directly from the customer. The original performance certificate may be returned after verification by BHEL, if required.

c) Full contact details of the customers from whom the performance certificatesare obtained are to be provided.

d) For obtaining the Performance certificate, a suggestive format is provided.

7.0 Indian bidders shall submit Audited financial results for the past three financial years (2010-11, 2011-12, 2012-13) and Foreign bidders shall submit D&B report covering past three financial years. The financial results shall be verified and evaluated to examine the financial health of the company. BHEL reserves the right to accept or reject the OEMs based on the assessment of their financial capability.

8.0 Servicing facility to be available in India. Details on Service-After-Sales Set-Up in India (Address of Agents / Service Centres), to be furnished compulsorily.

9.0 BHEL reserves the right to accept or reject the OEMs based on the assessment of their technical capability. BHEL reserves the right to verify the information provided by the Vendor for the referred machine at their referred customer's works. It shall be the responsibility of the vendor to facilitate the visit of BHEL's team at their referred customer works .The Travel, Board& Lodging expenses for BHEL Personnel shall be borne by BHEL. In case the information provided by vendor is found to be false/ incorrect, the offer shall be rejected.

400A, 60% Duty Cycle – SMAW/TIG Part A

Page 3 of 4

SECTION – II The BIDDER / VENDOR is requested to provide the following information:

S. No. REQUIREMENTS VENDOR’s RESPONSE

10.0 Details of Design Set-Up and Technology Back-Up (R & D Centre) available with the OEM.

11.0 Details on Standards followed in Design and Testing of Welding Machines (Copy of English Version of Standards / Design Codes followed shall be furnished with the Technical Offer).

12.0 Details of Quality System followed (Furnish the salient aspects of the Quality Assurance System followed)

13.0 Comprehensive Details, on PerformanceTesting of Welding Machines carried out at the Factory, to be furnished with theTechnical Offer.

14.0 The BIDDER shall give details about supply of similar welding machines to BHEL units if any with Make, Model and Year of Supply& Commissioning etc.

15.0 A complete reference list of Customers shall be furnished (preferably of Heavy Engg. Companies) to whom such offered model has been supplied in the last ten years with PO details, Qty., Year of commissioning with contact details of the customers.

16.0 Any Additional Data to supplement the manufacturing capability of the BIDDER.

SECTION – III The BIDDER to note:

S. No. PARTICULARS VENDOR’sRESPONSE

17.0 The BIDDER shall submit the offer in Two Parts– 1. Technical [with PART A & PART B]& 2. Commercial and Price Bid.

18.0 The VENDOR’sRESPONSE against each clause in PART A & B of the offer should be filled by the BIDDER compulsorily with complete details.

19.0 The BIDDER shall assure a continuous support for Spares and Service for Ten Years, from the date of commissioning of the equipment at BHEL Works.

20.0 The Technical Offer shall be supported by Product Catalogue and Data Sheets in original and complete technical details / literature on the quoted models of Welding Powersources.

400A, 60% Duty Cycle – SMAW/TIG Part A

Page 4 of 4

21.0 The Commercial Offer (given with the Technical Offer) shall contain the Scope of Supply and the Un-Priced Part of the Price-Bid, for confirmation.

The performance certificate should be produced on Customer’s Letter Head.

Suggestive Format of Performance Certificate

(On Customer’s letter head)

PERFORMANCE CERTIFICATE

1. Supplier of the machine : 2. Make & Model of the m/c : 3. Month & Year of Commissioning :

4. Quantity :

5. Machine Details

a) Type :

b) Capacity in Amp. :

c) Duty Cycle :

6. Application of the welding power sources:

7. Performance of the Machine : Satisfactory / Good / Average / Not Satisfactory

(Strike off whichever is not applicable) 8. After sales service : Satisfactory / Good / Average / Not Satisfactory

(Strike off whichever is not applicable) 9. Any Other remarks :

Date: Signature & Seal of the Authority Issuing the Performance Certificate

40

0A

, 60

% D

uty

Cy

cle–SMA

W/T

IG

Page 1

of 9

Te

chn

ical S

pe

cificatio

n - P

AR

T B

IGB

T b

ase

dIn

ve

rter co

ntro

lled

We

ldin

g P

ow

er S

ou

rce fo

r SM

AW

/TIG

We

ldin

g

(40

0 A

mp

s, 60

% D

uty

Cy

cle)

S. n

o.

BH

EL

SP

EC

IFIC

AT

ION

O

FF

ER

BY

BID

DE

R

1.0

A

PP

LIC

AT

ION

:

1.1

T

he p

rop

osed

Weld

ing M

achin

e is inten

ded

for M

anu

al Arc W

eldin

g Pro

cess (SMA

W)

and

also M

anu

al TIG

weld

ing p

rocess fo

r pro

du

cing R

adio

graph

ic Qu

ality W

elds lik

e Bu

tt Jo

ints, F

illet Weld

s, and

Do

ub

le Gro

ov

e Weld

s com

ing in

High

Pressu

re Vessels u

sing 2

.5

mm

to 5

.0 m

m d

ia.basic co

ated stick

electrod

es.

2.0

P

OW

ER

SO

UR

CE

FE

AT

UR

ES

2.1

T

ype

Po

wer

sou

rce sh

all b

e IG

BT

b

ased

Inverter

Co

ntro

lled

and

cap

able o

f deliverin

g a Co

nstan

t Direct C

urren

t (in D

CE

P an

d

DC

EN

mo

des o

f weld

ing o

peratio

ns).

2.2

Sw

itchin

g Freq

uen

cy

BID

DE

R h

as to in

dicate th

e Switch

ing F

requ

ency

of th

e Inv

erter C

ircuit an

d th

e mak

e of IG

BT

used

.

2.3

C

urren

t Ratin

g 4

00

A @

60

% D

uty

Cycle

2

.4

Op

erating R

ange fo

r W

eldin

g Cu

rrent

20

A

to

4

00

A

(with

step

less

variation

C

on

tinu

ou

sly ad

justab

le)

2.5

O

pen

Circu

it Vo

ltage P

referred O

CV

is 70

to 7

5 V

. BID

DE

R to

men

tion

the O

pen

C

ircuit V

oltage fo

r the o

ffered P

ow

er sou

rce

2.6

C

urren

t Settin

g T

he v

ariation

in th

e set value o

f the w

eldin

g curren

t to th

e actu

al value sh

all no

t exceed 1

%.

2.7

C

urren

t Co

ntro

l C

urren

t con

trol / reg

ulatio

n sh

all be p

rovid

ed in

the F

ron

t P

anel o

f Po

wer so

urce an

d also

in th

e Rem

ote C

on

trol U

nit b

y

kn

ob

con

trol.

40

0A

, 60

% D

uty

Cy

cle–SMA

W/T

IG

Page 2

of 9

S. n

o.

BH

EL

SP

EC

IFIC

AT

ION

O

FF

ER

BY

BID

DE

R

2.8

D

igital Co

ntro

l W

eldin

g po

wer so

urce sh

all have d

igital con

trol/ d

isplay

/ Settin

g features.

Typ

e of d

igital con

trol sh

all be exp

lained

by ven

do

r.

2.9

In

pu

t Po

wer Su

pp

ly

3 P

hase A

C 4

15

V ±

10

%, 5

0 H

z ± 2

%, th

rou

gh a 3

Wire System

(4

th wire fo

r Earth

ing) –

No

Neu

tral Co

nd

ucto

r.

2.1

0

Inp

ut P

ow

er Cab

le 5

m

etre lo

ng

electric in

pu

t p

ow

er cab

le w

ith

pro

tective sh

eathin

g (for 3

ph

ase with

po

tential earth

) to b

e pro

vided

with

th

e po

wer so

urce.

2.1

1

Co

ntro

l Pan

el Switch

es P

ow

er ON

/OF

F, R

emo

te ON

/OF

F, V

oltage &

Am

pere C

on

trol,

Ho

t Start Co

ntro

l, Arc D

ynam

ics Co

ntro

l, GT

AW

/SMA

W m

od

e selectio

n etc.

2.1

2

Vo

ltmeter &

Am

meter

Facto

ry In

stalled D

igital Am

meter &

Vo

ltmeter o

n th

e fron

t p

anel w

ith easy

remo

val and

replacem

ent (i.e., w

itho

ut liftin

g th

e top

cover o

f the W

eldin

g Po

wer so

urce) fo

r perio

dic

instru

men

t calibratio

n.

If the in

pu

t con

nectio

ns to

the am

meter an

d vo

ltmeter are tak

en

from

PC

B, w

ith d

igital reado

ut th

en

a) in

-bu

ilt pro

vision

for erro

r correctio

n sh

all be p

rovid

ed in

th

e weld

ing m

achin

e and

b

) C

alibratio

n k

it for m

easurin

g weld

ing cu

rrent (0

to 6

00

A)

and

Weld

ing vo

ltage (0 to

10

0V

) shall b

e pro

vided

. Th

e m

easurin

g instru

men

t in th

e Calib

ration

kit sh

all be

calibrated

at NA

BL

Accred

ited lab

s. C

alibratio

n certificate h

as to b

e pro

vided

for th

e disp

lay m

eters. C

alibratio

n p

roced

ure: D

etails of In

pu

t Sou

rce like vo

ltage or

curren

t, Fu

ll scale readin

g shall b

e furn

ished

alon

g with

the

offer w

hich

is necessary fo

r calibratio

n.

Ven

do

r shall d

efine &

Dem

on

strate Step b

y step C

alibratio

n

pro

cedu

re fo

r th

e m

easurin

g in

strum

ents

in

the

weld

ing

mach

ine at B

HE

L W

ork

s.

40

0A

, 60

% D

uty

Cy

cle–SMA

W/T

IG

Page 3

of 9

S. n

o.

BH

EL

SP

EC

IFIC

AT

ION

O

FF

ER

BY

BID

DE

R

2.1

3

Arc Strik

e

Selection

for In

stantan

eou

s Arc Strik

e with

Ho

t Start for SM

AW

P

rocess.

2.1

4

Arc D

ynam

ics Co

ntro

l - E

lectron

ic Ind

uctan

ce V

ariable C

on

trol

Arc

dyn

amics

Co

ntro

l sh

all b

e b

uilt

in

the

mach

ine

for

min

imisin

g the sp

atter and

op

timisin

g weld

-bead

wettin

g action

d

urin

g w

eldin

g o

f sp

ecial m

aterials lik

e Stain

less Steel,

T9

1/P

91

, Inco

nel, in

add

ition

to C

arbo

n an

d L

ow

Allo

y Steels.

2.1

5

Insu

lation

C

lass "H

"

– sh

all b

e p

rovid

ed

to

suit

Tro

pical

Wo

rkin

g C

on

ditio

ns

2.1

6

Mach

ine P

rotectio

n

IP 2

3 –

Degree o

f Pro

tectio

n

2

.17

M

achin

e Co

olin

g T

he P

ow

er sou

rce shall featu

re a forced

air coo

ling sy

stem th

at en

sures ad

equ

ate coo

ling o

f the co

mp

on

ents w

hile p

reven

ting

du

st and

metal p

articles from

bein

g draw

n in

.

2.1

8

Fu

nctio

nal / E

lemen

tal D

esign P

rotectio

n/

op

erator safety

a) In

bu

ilt p

rotectio

n

for

the

IGB

T/P

ow

er so

urce

against

Th

ermal / O

verload

/ Sho

rt-Circu

it / Single o

r Tw

o P

hase

P

ow

er Inp

ut C

on

ditio

ns.

b)

All P

CB

s shall b

e sprayed

with

mo

uld

coatin

g to p

reven

t d

amage fro

m d

ust an

d grin

din

g particles.

c) M

achin

e Design

to en

sure p

rop

er earthin

g for th

e mach

ine

and

its perip

herals.

d)

Pro

tection

again

st electric

sho

ck

from

in

pu

t su

pp

ly fo

r en

surin

g op

erator safety.

2.1

9

Electro

magn

etic In

terference (E

MI)

Sup

pressio

n

a) P

ow

er so

urce

shall

be

equ

ipp

ed

with

a

suitab

le F

ilter N

etwo

rk

con

nected

to

th

e in

pu

t P

ow

er L

ine,

to

prev

ent

pro

pagatio

n o

f EM

I / HF

no

ise either in

to o

r ou

t of th

e Po

wer

sou

rce. b

) A

ll m

etal en

closu

res an

d

intern

al sh

ields

shall

prev

ent

radiated

EM

I. c)

BID

DE

R h

as to elab

orate th

e design

features to

meet th

e ab

ove req

uirem

ents.

40

0A

, 60

% D

uty

Cy

cle–SMA

W/T

IG

Page 4

of 9

S. n

o.

BH

EL

SP

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IFIC

AT

ION

O

FF

ER

BY

BID

DE

R

2.2

0

Po

rtability

U

nd

er-Carriage w

ith h

ard ru

bb

er lined

wh

eels for p

ortab

ility o

f th

e po

wer so

urce b

y man

ual p

ush

ing an

d b

ottle rack

for h

old

ing

on

e Argo

n G

as cylin

der.

2.2

1

Am

bien

t Co

nd

ition

s T

emp

erature u

p to

+5

0°C

; Hu

mid

ity up

to 9

0%

bu

t bo

th u

pp

er lim

its do

no

t occu

r simu

ltaneo

usly.

2.2

2

Lo

ad C

om

pen

sation

O

utp

ut v

ariation

in term

s of flu

ctuatio

n in

line vo

ltage, cable

heatin

g or d

rift caused

du

e to u

sage of 2

0 m

lon

g weld

ing cab

le, sh

all be co

mp

ensated

suitab

ly.

2.2

3

Electro

de H

old

er &

Retu

rn C

urren

t C

on

nectio

n

Th

e po

wer so

urce sh

ou

ld h

ave preferab

ly Heavy D

uty

rugged

lu

g ty

pe

termin

als to

co

nn

ect W

eldin

g C

able

(for

SMA

W

Electro

de H

old

er) and

Retu

rn C

urren

t Cab

le.

2.2

4

Weld

ing C

urren

t Cab

le SM

AW

(curren

t) Cab

le with

a min

imu

m cro

ss section

al area of

50

mm

2, 20

m in

length

, with

on

e end

con

nected

to th

e Po

wer

sou

rce and

the free en

d p

rovid

ed w

ith a fem

ale Co

nn

ector to

co

nn

ect to th

e male C

on

necto

r of th

e Man

ual W

eldin

g Electro

de

Ho

lder.

2.2

5

Retu

rn C

urren

t Cab

le

Weld

ing C

urren

t return

cable, 2

0 m

in len

gth, w

ith o

ne en

d

con

nected

to th

e Po

wer so

urce an

d th

e oth

er end

pro

vided

with

a S

crew T

ype E

arth C

lamp

.

2.2

6

TIG

Arc Ign

ition

B

y mean

s of scratch

start

2.2

7

To

rch co

nn

ection

F

acility

to

con

nect

gas co

oled

T

IG

torch

th

rou

gh

suitab

le ad

apters to

prev

ent leak

age of gas fo

r GT

AW

.

2.2

8

Po

wer R

ating

BID

DE

R to

ind

icate the M

aximu

m P

ow

er Ratin

g (kV

A) o

f the

Po

wer so

urce an

d th

e no

-load

Po

wer co

nsu

mp

tion

in W

atts.

40

0A

, 60

% D

uty

Cy

cle–SMA

W/T

IG

Page 5

of 9

S. n

o.

BH

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SP

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AT

ION

O

FF

ER

BY

BID

DE

R

2.2

9

Po

wer So

urce M

od

el T

o Sp

ecify the M

od

el of P

ow

er sou

rce Offered

. (M

etallic nam

e plate o

f the m

achin

e shall also

inclu

de d

etails lik

e nam

e of m

anu

facturer, Serial n

o, Y

ear of M

fg inp

ut p

ow

er in

k

VA

, in

pu

t vo

ltage, N

o.

of

ph

ase, o

peratin

g freq

uen

cy,

weigh

t of th

e un

it etc.)

3.0

R

EM

OT

E C

ON

TR

OL

UN

IT F

EA

TU

RE

S

3.1

A

pp

lication

R

emo

te co

ntro

l un

it shall b

e p

rovid

ed

for settin

g weld

ing

curren

t from

a distan

t wo

rk p

lace, in ad

ditio

n to

that p

rovid

ed

in th

e fron

t pan

el of th

e weld

ing p

ow

er sou

rce.

3.2

T

yp

e H

and

Op

erated (fo

r SMA

W) an

d fo

ot o

perated

(for G

TA

W)

with

10

m lo

ng co

ntro

l cable w

ith q

uick

-fix end

con

necto

rs. T

ype o

f remo

te con

trol (an

alog o

r digital) m

ay be sp

ecified.

3.3

C

urren

t Co

ntro

l Step

less regulatio

n o

f Weld

ing C

urren

t.

4.0

T

IG W

EL

DIN

G T

OR

CH

ES

4.1

A

pp

lication

Su

itable

for

GT

AW

p

rocess

and

fo

r th

e n

ature

of

weld

ing

wo

rks listed

un

der S. n

o. 1

.0 an

d co

mp

atible to

the w

eldin

g p

ow

ersou

rce offered

.

4.2

M

ake

Preferred

mak

es are Weld

Craft, A

bico

r Bin

zel or an

y oth

er rep

uted

mak

e acceptab

le to B

HE

L.

4.3

T

orch

con

figu

ration

T

he

torch

H

ead-gas

lens

&

no

zzles co

nfig

uratio

n

shall

be

suitab

le for p

erform

ing th

e follo

win

g: a)

Tu

be

bu

tt w

elds

in

close

pitch

tu

bu

lar p

anels

with

a

min

imu

m

clear gap

o

f 1

2m

m

betw

een

the

adjacen

t tu

bes(gas n

ozzle en

d d

iameter is to

be 1

1m

m fo

r a length

o

f 25

mm

). b

) R

oo

t GT

AW

pass w

eldin

g in a 9

0m

m (w

all thick

ness) p

ipe

bu

tt weld

s (gas no

zzle end

dia. is to

be 1

1m

m fo

r a length

o

f 45

mm

).

40

0A

, 60

% D

uty

Cy

cle–SMA

W/T

IG

Page 6

of 9

S. n

o.

BH

EL

SP

EC

IFIC

AT

ION

O

FF

ER

BY

BID

DE

R

4.4

C

able sh

eathin

g P

rotectiv

e sheath

ing to

be p

rovid

ed fo

r the T

IG T

orch

cables &

H

oses, to

with

stand

sho

pflo

or ro

ugh

use fo

r the en

tire length

o

f cables/h

oses.

4.5

G

as coo

led T

orch

a)

Cu

rrent ratin

g: 14

0 to

18

0 A

@ 1

00

% D

uty

Cycle.

b)

Cab

le length

: Aro

un

d 8

m.

5.0

S

CO

PE

OF

SU

PP

LY

: [Th

e sco

pe

of su

pp

ly sh

all co

nsist o

f the

follo

win

g, fo

r ea

ch m

ach

ine

]

5.1

W

eldin

g Po

wer so

urce w

ith T

ransp

ort T

rolley w

ith w

heels an

d in

tegrated A

rgon

gas C

ylin

der C

art (on

e gas cylind

er/bo

ttle on

ly).

5.2

C

on

trol U

nit In

tegrated w

ith P

ow

ersou

rce

5.3

P

ow

er sou

rce suitab

le for T

IG/G

TA

W w

ith scratch

start

5.4

H

and

Op

erated R

emo

te Co

ntro

l Un

it.

5.5

F

oo

t op

erated R

emo

te Co

ntro

l Un

it

5.6

Set o

f Inter-C

on

nectin

g Cab

les, Ad

apters , h

oses etc.

5.7

W

eldin

g Cab

le and

Weld

ing H

old

er

5.8

R

eturn

Cu

rrent C

able w

ith Screw

Typ

e Earth

Clam

p.

5.9

G

as coo

led T

IG w

eldin

g torch

5.1

0

Electrical &

Mech

anical Sp

ares for P

ow

ersou

rce & C

on

trol U

nit

5.1

1

Calib

ration

kit if n

ecessary

5.1

2

OP

TIO

NA

L:P

rogram

load

ershall b

e sup

plied

if the p

ow

er sou

rce is pre

-pro

gramm

ed.

40

0A

, 60

% D

uty

Cy

cle–SMA

W/T

IG

Page 7

of 9

S. n

o.

BH

EL

SP

EC

IFIC

AT

ION

O

FF

ER

BY

BID

DE

R

6.0

S

PA

RE

S :

6.1

P

ow

er Sou

rce A

ll ty

pe

of

Spare

Parts

requ

ired

for

2

years

of

trou

ble

free

op

eration

on

three sh

ift basis in

clud

ing th

e follo

win

g items are to

b

e com

pu

lsorily

qu

oted

(with

Un

it Rate).

a) IG

BT

Kit

b)

All T

ypes o

f Fu

ses c)

Co

ntro

l – Tran

sform

ers d

) P

rinted

Circu

it Bo

ards / P

CB

s – All T

ypes

e) R

ectifiers, Th

ermisto

rs, Cap

acitors

f) Sw

itches an

d K

no

bs

g) C

oo

ling F

an M

oto

r h

) A

mm

eter & V

oltm

eter i)

Po

tentio

meter

j) R

elays &

Tim

ers k

) R

eceptacles

l) C

on

trol C

able w

ith E

nd

Co

nn

ectors

m) F

ilters n

) W

eldin

g & R

eturn

Cab

le Co

nn

ectors

6.2

T

IG T

orch

co

nsu

mab

les C

om

plete

set o

f co

nsu

mab

le sp

ares fo

r ø

2.4

mm

T

un

gsten

electrod

e, ‘O’ R

ings, G

as lens, n

ozzle/d

iffusers, ceram

ic no

zzles (b

oth

ty

pes),

collet

bo

dies,

etc. fo

r o

ne

year tro

ub

le free

op

eration

are to b

e offered

with

un

it price.

6.3

R

emo

te Co

ntro

l Un

it C

om

plete S

et of Sp

ares for R

emo

te Co

ntro

l Un

it to b

e offered

.

7.0

O

& M

MA

NU

AL

S :

7.1

N

o. o

f Co

pies

On

e cop

y fo

r each m

achin

e

7.2

L

angu

age E

nglish

40

0A

, 60

% D

uty

Cy

cle–SMA

W/T

IG

Page 8

of 9

S. n

o.

BH

EL

SP

EC

IFIC

AT

ION

O

FF

ER

BY

BID

DE

R

7.3

So

ft Co

py

O

ne so

ft cop

y in

CD

-RO

M is to

be giv

en fo

r each m

achin

e, co

ntain

ing th

e details m

entio

ned

un

der C

lause S

l. No

. 6.0

/6.4

7.4

M

anu

al Details :

a) M

anu

al sh

all co

ntain

all

instru

ction

s fo

r m

achin

e in

stallation

and

weld

ing trial testin

g, in seq

uen

ce. b

) M

anu

al to

giv

e gen

eral circu

it

diagram

s, sh

ow

ing

the

interco

nn

ection

of vario

us elem

ents an

d also

details o

n

PC

Bs [P

rinted

Circu

it Bo

ard] lik

e tapp

ing

voltages, m

ain

electron

ic elemen

ts' specificatio

ns an

d ratin

gs, etc. c)

Man

ual to

give o

ther d

etails like tro

ub

le sho

otin

g chart,

weld

param

eters selection

for vario

us b

ase metals, etc.

d)

Master L

ist of P

arts & Sp

ares used

in th

e mach

ine w

ith

Mak

e, Mo

del, R

ating, P

art nu

mb

eretc.

8.0

G

EN

ER

AL

PO

INT

S :

8.1

B

ou

ght-O

ut Item

s a)

IGB

Ts u

sed in

the w

eldin

g po

wer so

urces sh

all be o

f H

ITA

CH

I, JAP

AN

/ DY

NE

X, U

.K/ F

UJI, JA

PA

N/ IX

YS, U

SA

/ P

OW

ER

EX

, USA

/ MIT

SUB

ISHI, JA

PA

N/ T

OSH

IBA

, JAP

AN

/ IN

FIN

EO

N, G

ER

MA

NY

/ SEM

IKR

ON

, GE

RM

AN

Ym

ake o

nly

. T

he m

anu

facturer’s o

riginal test certificate fo

r the IG

BT

s u

sed

in

the

po

wer

sou

rces sh

all b

e p

rovid

ed

with

th

e eq

uip

men

t. T

hese

shall

be

verified

du

ring

pre

-disp

atch

insp

ection

. b

) T

he B

ou

ght-O

ut Item

s - like M

oto

rs, ICs, R

elays, C

on

tactors,

Switch

es, E

lectron

ic E

lemen

ts, etc.,

used

in

th

e P

ow

er so

urce &

Co

ntro

l Un

it shall b

e of rep

uted

mak

es acceptab

le to

BH

EL

. c)

BID

DE

R h

as to fu

rnish

the m

ake o

f Bo

ugh

t-Ou

t Items, alo

ng

with

the o

ffer.

8.2

W

eight

Bid

der to

specify th

e Weigh

t of sin

gle po

wer so

urce

40

0A

, 60

% D

uty

Cy

cle–SMA

W/T

IG

Page 9

of 9

S. n

o.

BH

EL

SP

EC

IFIC

AT

ION

O

FF

ER

BY

BID

DE

R

8.3

P

re-disp

atch

Insp

ection

T

he w

eldin

g mach

ines sh

all be o

ffered fo

r insp

ection

by

BH

EL

E

ngin

eers at sup

plier’s w

ork

s for p

erform

ance ev

aluatio

n p

rior

to d

espatch

.

8.4

C

om

missio

nin

g C

om

missio

nin

g an

d

perfo

rman

ce p

rove

ou

t o

f th

e o

ffered

equ

ipm

ent at B

HE

L w

ork

s, by th

e sup

plier's rep

resentativ

e.

8.5

P

erform

ance p

rove

ou

t at BH

EL

wo

rks

a) W

eldin

g Trials are to

be tak

en o

n b

utt jo

ints o

f carbo

n &

allo

y steel tub

es (of d

imen

sion

s as men

tion

ed in

Clau

se 4.3

an

d ro

ot p

ass of p

ipes) an

d su

bjected

to rad

iograp

hic tests

for accep

tance.

b)

BH

EL

w

ill p

rovid

e n

ecessary jo

bs

and

co

nsu

mab

les fo

r SM

AW

and

TIG

weld

ing trials.

8.6

T

rainin

g T

he

Sup

plier’s

Service E

ngin

eer sh

all giv

e train

ing

in

the

Op

eration

an

d

Main

tenan

ce (m

ainly

o

n

electric/electron

ic tro

ub

lesho

otin

g) o

f th

e M

achin

e to

B

HE

L

Staff, d

urin

g

com

missio

nin

g of th

e Weld

ing M

achin

es.

8.7

G

uaran

tee T

he m

achin

e shall b

e guaran

teed fo

r a min

imu

m o

f 24

mo

nth

s fro

m th

e date o

f com

missio

nin

g at BH

EL

.