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400A, 60% Duty Cycle – SMAW Part A
Page 1 of 4
PART A
IGBT based Inverter controlled Welding Power Source for SMAW (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”for Radiographic Quality SMAW 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”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” supplied & commissioned till date.
4.0 Year of Launch of the quoted Model in this tender.
5.0 The quoted model of Welding Power Source shall be complying with atleastone 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 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 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.
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.
400A, 60% Duty Cycle – SMAW Part A
Page 4 of 4
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 – SM
AW
PA
RT
- B
Te
chn
ical S
pe
cificatio
n - P
AR
T B
IGB
T b
ase
d In
ve
rter co
ntro
lled
We
ldin
g P
ow
er S
ou
rce fo
r SM
AW
(4
00
A, 6
0%
du
ty 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 W
eldin
g Po
wer So
urce is in
tend
ed fo
r Man
ual A
rc Weld
ing P
rocess (SM
AW
) for
pro
du
cing R
adio
graph
ic Qu
ality W
elds lik
e Bu
tt Join
ts, Fillet W
elds, an
d D
ou
ble G
roo
ve W
elds co
min
g in H
igh P
ressure V
essels usin
g dia. 2
.5 m
m to
5.0
mm
electrod
es.
2.0
P
OW
ER
SO
UR
CE
FE
AT
UR
ES
2.1
T
ype
Po
wer so
urce sh
all be IG
BT
based
Inv
erterCo
ntro
lled an
d
capab
le of d
elivering a C
on
stant D
irect Cu
rrent(in
DC
EP
and
D
CE
N m
od
es of w
eldin
g op
eration
s).
2.2
Sw
itchin
g Freq
uen
cy
BID
DE
R h
as to in
dicate th
e Sw
itchin
g Freq
uen
cy 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 D
C
2.4
O
peratin
g Ran
ge for
Weld
ing C
urren
t 2
0 A
to 4
00
A (w
ith step
less variatio
n 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 variatio
n in
the set valu
e of th
e weld
ing cu
rrent to
the
actual valu
e shall n
ot exceed
1 %
.
2.7
C
urren
t Co
ntro
l C
urren
t con
trol / regu
lation
shall b
e pro
vided
in th
e Fro
nt
Pan
el of P
ow
er sou
rce and
also in
the R
emo
te Co
ntro
l Un
it by
k
no
b co
ntro
l.
2.8
D
igital Co
ntro
l W
eldin
g po
wer so
urce sh
all have d
igital con
trol/
disp
lay/settin
g features.
Ty
pe o
f digital co
ntro
l shall b
e explain
ed b
y vend
or.
40
0A
, 60
% D
uty
Cy
cle – SM
AW
PA
RT
- B
S. N
o.
BH
EL
SP
EC
IFIC
AT
ION
O
FF
ER
BY
BID
DE
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 Sy
stem
(4th w
ire for E
arthin
g) – N
o N
eutral C
on
du
ctor.
2.1
0
Inp
ut P
ow
er Cab
le 5
metre lo
ng electric in
pu
t po
wer cab
le with
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 Sw
itches
Po
wer O
N/O
FF
, Rem
ote O
N/O
FF
, Vo
ltage & A
mp
ere Co
ntro
l, H
ot S
tart Co
ntro
l, Arc D
ynam
ics Co
ntro
l 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
taken
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
meters.
Calib
ration
pro
cedu
re: Details o
f Inp
ut So
urce lik
e voltage o
r cu
rrent, F
ull scale read
ing sh
all be fu
rnish
ed alo
ng w
ith th
e o
ffer wh
ich is n
ecessary for calib
ration
. V
end
or sh
all defin
e & D
emo
nstrate S
tep b
y step C
alibratio
n
pro
cedu
re for th
e measu
ring in
strum
ents in
the w
eldin
g m
achin
e at BH
EL
Wo
rks.
40
0A
, 60
% D
uty
Cy
cle – SM
AW
PA
RT
- B
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 In
du
ctance V
ariable
Co
ntro
l
Arc d
ynam
ics Co
ntro
l shall b
e bu
ilt in th
e mach
ine fo
r m
inim
ising th
e spatter an
d o
ptim
ising w
eld-b
ead w
etting
action
du
ring w
eldin
g of sp
ecial materials lik
e Stainless 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" –
shall b
e pro
vided
to su
it Tro
pical W
ork
ing
Co
nd
ition
s
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 system
that
ensu
res adeq
uate co
olin
g of th
e com
po
nen
ts wh
ile prev
entin
g d
ust an
d m
etal particles fro
m b
eing d
rawn
in.
2.1
8
Fu
nctio
nal / E
lemen
tal D
esign P
rotectio
n /
op
erator safety
a) In
bu
ilt pro
tection
for th
e IGB
T/P
ow
er sou
rce against
Th
ermal / O
verload
/ Sh
ort-C
ircuit / S
ingle o
r Tw
o P
hase
Po
wer In
pu
t Co
nd
ition
s. b
) A
ll PC
Bs sh
all be sp
rayed
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
against electric sh
ock
from
inp
ut su
pp
ly for
ensu
ring o
perato
r safety.
2.1
9
Electro
magn
etic In
terference (E
MI)
Sup
pressio
n
a) P
ow
er sou
rce shall b
e equ
ipp
ed w
ith a su
itable F
ilter N
etwo
rk co
nn
ected to
the in
pu
t Po
wer 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 P
ow
er sou
rce. b
) A
ll metal en
closu
res and
intern
al shield
s shall p
reven
t rad
iated E
MI.
c) B
IDD
ER
has to
elabo
rate the d
esign featu
res to m
eet the
abo
ve requ
iremen
ts.
40
0A
, 60
% D
uty
Cy
cle – SM
AW
PA
RT
- B
S. N
o.
BH
EL
SP
EC
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 of
the p
ow
er sou
rce by m
anu
al pu
shin
g.
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 variatio
n in
terms o
f fluctu
ation
in lin
e voltage, cab
le h
eating o
r drift cau
sed d
ue to
usage o
f 20
m lo
ng w
eldin
g cable,
shall b
e com
pen
sated su
itably.
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 Heav
y Du
ty ru
gged
lug ty
pe term
inals to
con
nect W
eldin
g Cab
le (for SM
AW
E
lectrod
e Ho
lder) an
d R
eturn
Cu
rrent C
able.
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
w
ith a Screw
Typ
e Earth
Clam
p.
2.2
6
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.
2.2
7
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
kV
A, in
pu
t voltage, N
o. o
f ph
ase, op
erating freq
uen
cy, w
eight
of th
e un
it etc.)
40
0A
, 60
% D
uty
Cy
cle – SM
AW
PA
RT
- B
S. N
o.
BH
EL
SP
EC
IFIC
AT
ION
O
FF
ER
BY
BID
DE
R
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 con
trol u
nit sh
all be p
rovid
ed fo
r setting w
eldin
g cu
rrent fro
m a d
istant w
ork
place, in
add
ition
to th
at pro
vided
in
the fro
nt p
anel o
f the w
eldin
g po
wer so
urce.
3.2
T
ype
Han
d O
perated
(for SM
AW
) with
10
m lo
ng co
ntro
l cable w
ith
qu
ick-fix en
d co
nn
ectors. T
ype o
f remo
te con
trol (an
alog o
r d
igital) may b
e specified
.
3.3
C
urren
t Co
ntro
l Step
less regulatio
n o
f Weld
ing C
urren
t.
4.0
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
)
4.1
W
eldin
g Po
wer so
urce w
ith T
ransp
ort T
rolley w
ith w
heels.
4.2
C
on
trol U
nit In
tegrated w
ith P
ow
er sou
rce
4.3
H
and
Op
erated R
emo
te Co
ntro
l Un
it.
4.4
Set o
f Inter-C
on
nectin
g Cab
les, Ad
apters etc.
4.5
W
eldin
g Cab
le and
Weld
ing H
old
er
4.6
R
eturn
Cu
rrent C
able w
ith Screw
Typ
e Earth
Clam
p.
4.7
E
lectrical & M
echan
ical Spares fo
r Po
werso
urce &
Co
ntro
l Un
it
4.8
C
alibratio
n K
it if necessary
4.9
O
PT
ION
AL
: Pro
gram lo
ader sh
all be su
pp
lied if th
e po
wer so
urce is p
re-p
rogram
med
.
40
0A
, 60
% D
uty
Cy
cle – SM
AW
PA
RT
- B
S. N
o.
BH
EL
SP
EC
IFIC
AT
ION
O
FF
ER
BY
BID
DE
R
5.0
S
PA
RE
S :
5.1
P
ow
er Sou
rce A
ll typ
e of Sp
are Parts req
uired
for 2
years of tro
ub
le free o
peratio
n o
n th
ree shift b
asis inclu
din
g the fo
llow
ing item
s are to
be co
mp
ulso
rily q
uo
ted (w
ith U
nit R
ate). a)
IGB
T K
it b
) A
ll Typ
es of F
uses
c) C
on
trol – T
ransfo
rmers
d)
Prin
ted C
ircuit B
oard
s / PC
Bs – A
ll Typ
es e)
Rectifiers, T
herm
istors, C
apacito
rs f)
Switch
es and
Kn
ob
s g)
Co
olin
g Fan
Mo
tor
h)
Am
meter &
Vo
ltmeter
i) P
oten
tiom
eter j)
Relay
s & T
imers
k)
Recep
tacles l)
Co
ntro
l Cab
le with
En
d C
on
necto
rs m
) Filters
n)
Weld
ing &
Retu
rn C
able C
on
necto
rs
5.2
R
emo
te Co
ntro
l Un
it C
om
plete Set o
f Spares fo
r Rem
ote C
on
trol U
nit to
be o
ffered.
6.0
O
& M
MA
NU
AL
S :
6.1
N
o. o
f Co
pies
On
e for E
ach M
achin
e
6.2
L
angu
age E
nglish
6.3
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
40
0A
, 60
% D
uty
Cy
cle – SM
AW
PA
RT
- B
S. N
o.
BH
EL
SP
EC
IFIC
AT
ION
O
FF
ER
BY
BID
DE
R
6.4
M
anu
al Details :
a) M
anu
al shall co
ntain
all instru
ction
s for m
achin
e in
stallation
and
weld
ing trial testin
g, in seq
uen
ce. b
) M
anu
al to giv
e general circu
it diagram
s, sho
win
g 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 vo
ltages, main
electro
nic elem
ents' sp
ecification
s and
ratings, etc.
c) M
anu
al to giv
e oth
er details lik
e trou
ble sh
oo
ting ch
art, w
eld p
arameters selectio
n fo
r variou
s base m
etals, etc. d
) M
aster List o
f Parts &
Spares u
sed in
the m
achin
e with
M
ake, M
od
el, Ratin
g, Part n
um
beretc.
7.0
G
EN
ER
AL
PO
INT
S :
7.1
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
, US
A/ M
ITSU
BISH
I, JAP
AN
/ TO
SHIB
A, JA
PA
N /
INF
INE
ON
, GE
RM
AN
Y/ SE
MIK
RO
N, G
ER
MA
NY
mak
e on
ly.
Th
e man
ufactu
rer’s origin
al test certificate for th
e IGB
Ts
used
in th
e po
wer so
urces sh
all be p
rovid
ed w
ith th
e eq
uip
men
t. Th
ese shall b
e verified d
urin
g pre
-disp
atch
insp
ection
. b
) O
ther B
ou
ght-O
ut Item
s - like M
oto
rs, ICs, R
elays,
Co
ntacto
rs, Switch
es, Electro
nic E
lemen
ts, etc., used
in th
e P
ow
er sou
rce & C
on
trol U
nit sh
all be o
f Rep
uted
Mak
es accep
table 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.
7.2
W
eight
Bid
der to
specify th
e Weigh
t of sin
gle po
wer so
urce
40
0A
, 60
% D
uty
Cy
cle – SM
AW
PA
RT
- B
S. N
o.
BH
EL
SP
EC
IFIC
AT
ION
O
FF
ER
BY
BID
DE
R
7.3
P
re-disp
atch
Insp
ection
at Su
pp
lier’s wo
rks
Th
e weld
ing m
achin
es shall b
e offered
for in
spectio
n b
y B
HE
L
En
gineers at su
pp
lier’s wo
rks fo
r perfo
rman
ce evalu
ation
prio
r to
desp
atch. W
eldin
g con
sum
ables h
ave to
be arran
ged b
y the
sup
plier.
7.4
C
om
missio
nin
g C
om
missio
nin
g and
perfo
rman
ce pro
ve ou
t of th
e offered
eq
uip
men
t at BH
EL
wo
rks sh
all be d
on
e by th
e sup
plier's
Co
mm
ission
ing E
ngin
eer.
7.5
P
erform
ance p
rove o
ut
at BH
EL
wo
rks
a) W
eldin
g Trials are to
be tak
en o
n carb
on
steel & allo
y steel jo
bs w
ith 4
.0m
m an
d 5
.0m
m electro
des.
b)
BH
EL
will p
rovid
e necessary jo
bs an
d electro
des fo
r SMA
W.
7.6
T
rainin
g T
he Su
pp
lier’s Service En
gineer sh
all give train
ing in
the
Op
eration
and
Main
tenan
ce (main
ly on
electric/electron
ic tro
ub
lesho
otin
g) of th
e Mach
ine to
BH
EL
Staff, du
ring
com
missio
nin
g of th
e Weld
ing M
achin
es.
7.7
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
.