DRAFT (QMS Document No. QO-D-7.1-2 Ver.-3), after approval of...
Transcript of DRAFT (QMS Document No. QO-D-7.1-2 Ver.-3), after approval of...
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Reasoned Document for Revision of Specification of 8 Wheeler Tower Wagon (DETC)
Sub: Revision of Specification No. TI/SPC/OHE/8WDEIC/0090(02/09) to manufacture the self propelled 8 Wheeler Inspection & Maintenance Car of Diesel Electric under slung type for operation on Broad Gauge (1676 mm).
Ref: Railway Board‟s letter no.84/RE/158/1/2 (FTS 2862) dated: 4.04.2011& 13.09.2011
1. RDSO have issued a Specification[ No. TI/SPC/OHE/8WDEIC/0090(02/09)] to manufacture self propelled 8 Wheeler
Inspection & Maintenance Car of Diesel Electric „under slung‟ type for operation on Broad Gauge (1676 mm) during
May,2010.
2. Railway Board, vide their letter dated 04.04.2011, desired a need to evaluate the Specification as per latest requirement.
A meeting of RDSO & Zonal Railways was called at Railway Board on 04.04.2011.
3. For considering various aspects and for evaluation of above Specification a “DRAFT” was uploaded on RDSO‟s Official
Website on 20.05.2011 for suggestion/comment of probable Vendors and Outside Agencies as per Detailed Guide lines to „Change of Equipment, Item Specification as per RDSO’s QMS Document No. QO-D-7.1-2 Ver.-3. (letter in this regard
had been sent to Railway Board on 13.05.2011).
4. After considering the comments of Motive Power Directorate, Carriage Directorate, PS & EMU Directorate, Zonal Railways and Outside Agencies, a Reasoned Document along with „DRAFT‟ of Revision of Specification was uploaded on website for
15 days on 13.07.2011. As per extent guidelines (QMS Document No. QO-D-7.1-2 Ver.-3), after approval of HOD and
DG/RDSO; Draft Specification was sent to Railway Board for their approval; vide this office letter No.TI/OHE/8WDETW/GEN/11 dated:08.08.2011
5. Railway Board, vide letter No.84/RE/158/1/2-FTS-2862 dated 13.09.2011 have advised RDSO to freeze certain
Designs/Specifications/sources which are similar to EMU/MEMU so that maintenance in Railway‟s existing EMU/MEMU Car
Sheds may be done. 6. Again „DRAFT‟ for revision was prepared, after approval it was sent to Motive Power Directorate, carriage Directorate, and
PS & EMU Directorate, for evaluation and comments. Same have been uploaded on RDSO‟s Web Site on 24.10.2011 for
obtaining comments of outside agencies.
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7. Comments/ suggestions received so far have been compiled below along with RDSO‟s views:
Sl.
No.
Clause
No.
Description
in Specification
Comments of PS & EMU, Motive
Power and Carriage Directorates.
Comments of BHEL, BEML, CGL &
Phooltas, Titagarh Wagons & Tractor India Private Limited
Views of
Traction Installation Directorate
1
2.
1.2
1.2.1.3
Climatic Condition,
Atmospheric temperature,
Minimum
temperature:
- 10°C (Also snow fall in certain areas
during winter
season). Reference Site
Conditions
i) Ambient
Temperature : 50°C ii) Humadity:100%
iii)Altitude:1000 m
above mean sea level
Carriage Directorate
-10°C is too low. In Specification No.
TI/SPC/OHE/8WDHTW/0070 the
range is 0°C to 55°C.
This may be reviewed.
Tractors India (P) Limited
Reference site conditions to be
basis for the Generator set
package which includes all performances and Specifications
of items and major Components
are to fully comply reference site conditions.
Comment
Above is suggested to be added in view of critical importance of
Prime mover (Engine) and
Alternator (Generator)
performances and availability of outputs at reference site
conditions.
Climatic conditions mentioned in Specification may retain
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3.
1.2.2
(c)
Maximum train
Acceleration 2.0g (g-being acceleration
due to Gravity)
Phooltas
There seems to be typographical error in place of maximum train
acceleration. “It should be
maximum lateral or transversal
acceleration”. Further, the maximum lateral/transversal
acceleration shall be 1 g in place
of 2 g.
2.0 g is correct.
4. 1.3.4 The evaluation of bids
shall, inter-alia, take
into consideration the
Fuel efficiency of the Diesel Engine. For
this purpose the bids
shall be loaded by capitalised cost of
additional fuel and
lubricating oil
consumption over and above the base
consumption at 75%
of the rated output of the diesel engine.
The lowest values of
fuel and lubricating oil consumption quoted
by the technically
suitable Tenderer
shall form the basis for the purpose of
comparison. The
bidders shall enclose
Tractors India (P) Limited
From the nature of application and
work to be carried out by the OHE
Car, there may be long idle operating hours for the
Equipments.
Hence, a performance review @ 25% of rated power of the Diesel
Engine, Alternator & packaged
Generator set may be considered.
This is a suggestion only. Operating hours for 25% of rated
power should also be mentioned
likewise 2000 hours is mentioned for 75% of rated power.
Both performances for Diesel Fuel
consumption as reported shall be demonstrated during routine tests
& also performance tests. Test
Reports for such fuel rates shall
be confirmed by the OEM of respective items.
The OEM shall also certify fuel
consumption performances at
Provisions in the Specification
may retain
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Fuel and Lubricating
oil consumption in litres per hour at 75%
of the rated output of
the Diesel Engine as
issued by the OEM of the Diesel Engine.
The fixed parameters for evaluating the
capitalized cost shall
be as under :-
Life of the diesel engine :18 years
Annual operating
period :2000 hrs. -Cost of fuel per litre
-Cost of lubricating oil / litre
Prevalent on the date
of opening of bid
Rate of interest:12%
Reference site Conditions for
evaluation purposes.
5.
1.2(v)
Atmosphere during
hot weather Extremely dusty and
desert terrain in
certain areas.
The dust concentration in air
may reach as high as
of 1.6 mg/m³.
Phooltas
Please clarify whether wagon weight is 120 t each or both
together.
Each wagon shall be weighing
60 t. Two Wagons weighing 60 tonne each in gross load
condition i.e. total load would
be 120 t for two wagons
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1.2.3
In many iron ore and
coalmine areas, the dust concentration is
very high affecting
the filter and air
ventilation system.
The OHE car shall be
able to negotiate water logged tracks
at 10 kmph, with
water level of 102
mm above the rail top, for which the
equipment shall be
suitably designed.
Tractors India (P) Limited
Any and all items, components, Assemblies should be above a
safe margin from the water
logging at 102 mms over rail top.
While the car is in movement, there may be ripples and the
water level may increase to cause
damages. Hence, the minimum clearance of 120 mms from rail-
top is to be maintained during
assembly. Comment
Clearance should be left over un-
answered for this critical issue.
Provisions in the Specification
may retain
6. 1.19 A Themovision Camera as per
RDSO‟s Specification
,Video Camera to capture picture at
100 kmph along with
software to transfer
the picture and video shoots on the
Computer, one
Hydraulic Jack of 5 t
Carriage Directorate “A Thermovision camera as per
RDSO‟s specification No….
to be mentioned and “thermovision” may be corrected
BHEL Specification for Thermo vision
Camera, Tirfer,Pull-lift is required.
BEML Specification for Camera may be
included.
1. Thermo vision camera as per RDSO‟s Specification
No.TI/Spec/OHE/0100.
2. Tirfor as per RDSO‟s Specification No.
TI/SPC/OHE/TOOLPL/0990
3. Pull- lifts as per RDSO‟s
Specification No. TI/SPC/OHE/TOOLPL/1990
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capacity, one tirfer
(3t), two tirfer (3/2 t), three pull-lift 3/4t,
two pull-lift (3/2 t)
and one pull-lift (3t)
shall be supplied along with OHE Car.
7 1.2.1 Climatic conditions
1. Atmospheric temperature--
2. Humidity--100%
saturation during
Rainy season 3. Reference site
conditions
4. Rain fall 5. Atmosphere during
hot weather
Motive Power Directorate
The range & Maximum permissible limits for the Item
no 1,2,3,4,5 may be advised
Already provided in the
Specification
8 1.16.2
(iv)
Motorised Bogie
(complete with Break Gear)
BEML
Include Motor or without Motor
Traction Motors have been
included in specific para
9 1.21.1 AMC
The Tenderer shall quote for AMC
comprehensive of all
in all inclusive of all
Equipments including Traction Motors
Alternators, Diesel
Engine complete with transmission,
Compressor unit and
Cooling system for 3
Motive Power Directorate
In the clause, it is not mentioned that whether Engine
parts shall also be in the scope
of AMC.
The AMC shall cover all the
Equipments of Diesel Engine, Traction Motors and
Alternators.
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years during the
warranty period of 36 months and
separately for 5 years
after warranty is
over. The Tenderer shall
quote year wise rates
of AMC detailing the various Schedule
enlisting the
requirement of
material/ spare parts and services to be
rendered by him after
regular intervals. The Tenderer shall
keep adequate spares
in stock for regular Schedule of AMC so
that maintenance
schedules are
completed timely. AMC shall be all
inclusive of
replacement of parts, if required either due
to breakdown or
wear. The AMC cost shall be considered
while evaluating the
inter-se tender
position.
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It shall be compulsory
for the tenderer to quote for AMC.
However, the decision
to enter into AMC
shall vest with Railway alone.
10. 12 (ii)
Page 13
Performance
Capabilities
Carriage Directorate
110 km/h to be changed to 105 km/h
11. 2.0
12 vii
Page 13
Weight of Wagons Carriage Directorate
“Wagon weighing 120 ton” may
be replaced by “Two wagons weighing 60t each in gross load
condition”
Two wagons weighing 60t
each in gross load condition
-Acceptable
12. 2.3.1 (ix)
Page
14
Driving Cab Full width single piece
Stone proof lookout
glass with Sun Screen shall be provided at
the end wall of each
Driver‟s compartment and these shall be
glazed, clear,
colourless polyOHE
carbonate to ICF spec no.ICF/MD/SPEC-159
(latest revision).
Carriage Directorate “PolyOHE carbonate” to be
replaced by Poly carbonate
Acceptable as “Polycarbonate”
13. 2.3.5 (iv)
Page
16
Facility on roof
Carriage Directorate “PolyOHE carbonate” to be
replaced by Polycarbonate
Acceptable as “Polycarbonate”
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14. 2.3.5 (v) (b) page 17
Lifting and Swivelling
Platform width
Carriage Directorate
Platform width 1600 mm but as per the Diagram 1 D of BG IR
SOD revised 2004 the width on
the top of MMD is 1520mm.
Therefore the width may be suitably reduced to avoid
infringement.
Acceptable. The width of the
Swivelling Platform shall be corrected as 1500 mm which
has been accepted during the
Design approval 8Wheeler
Diesel Hydraulic Tower Wagon of M/s. BEML
15. 2.3.1 (X)
Provision of Wind Screen Wiper Arm
and Blade Assembly
to be provided.
BHEL Wiper Assembly to RDSO
Specification No. C-K306 will be
provided. This Wiper to RDSO
Specification No. C-K306. However, doesn‟t have provision
of water spraying.
Acceptable.
16. 3.1.6 Page 20
Under Frame The underframe
material shall be of
corrosion resistant
Structural Steel to IRS: M 41 or Copper
bearing quality Steel
to IS: 2062 Cu WC, of welded integral
Structure. The under
frame design shall be
as per ICF Drawing No AC/DC/EMU/C2-1-
1-201 with latest
alteration. They shall be assembled in jigs
and fabricated by
welding. Trough floor
Carriage Directorate ICF Drawing No.
AC/DC/EMU/C2-1-1-201 is for
3660 mm wide EMU Stock and it
may not be suitable for 3250 mm wide stock. Therefore
Drawing No. may be deleted.
In above reference, the bogie has been suggested vide note No.SV.EMU.RAS dated 08.02.2012 by Director/VDG.
As far as under-frame suitable to DETC is concerned, it is stated that this specification is for purchase of DETC from trade and IR is not offering complete design to the manufacturers. Hence,
Acceptable The Drawing of Under Frame
of 8 wheeler Diesel Electric
Tower Car can be finalised at
the stage of Design/Drawing approval Stage.
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of 2.0 mm thick of
Steel to IRS: M 41 steel shall be
provided in covered
area.
manufacturers should develop their own design of under-frame keeping in mind the layout of DETC. The firm should submit design to RDSO for approval at the time of design approval stage.
17. 3.1.11 Page 20
Sole Bar
These shall be
continuous members from headstock to
headstock,
adequately braced together to withstand
the head on loading
and cross racking forces and shall be
capable to withstand
jacking for the
purpose of lifting the OHE Car. The Sole
Bar shall be of
corrosion resistant Structural Steel to
IRS: M 41 steel.
The Design of Sole Bar shall be as per
ICF Drawing No
EMU/M2-1-1-541.
Carriage Directorate
The Drawing No. EMU/M2-1-1-
541 may be deleted. Sole bar drawing may be finalized at
design stage.
Acceptable.
The Drawing of Sole Bar of 8
Wheeler Diesel Electric Tower Car can be finalized at the
stage of Design/Drawing
approval Stage.
18. 3.2.2 Four openings shall be provided in the
roof for erection of
catenary and contact wires in either
Phooltas Please confirm whether 4 opening
are required or 2 opening as
mentioned in Clause 2.3.2.
Two openings are acceptable on roof
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direction. The
openings shall be of suitable size to permit
paying out of the
conductors in any
direction, when the OHE Car is moving
slowly at 5-10 km/h
speed, without any obstruction, rubbing
or scrapping.
19. 2.3.4.4 Staff Cabins
One Cabin for officers/staff with four
cushioned Berths
shall be provided. The Cabins shall have
separate entry and
have windows on
both sides. The Cabins shall
preferably be not
over the wheels and made sound proof as
far as possible. An
Indian style WC with separate over tank,
Stainless Steel Sink
and other accessory
fitting and a folding cushioned seat
including shower with
flexible Hose shall be
BHEL
Kindly confirm whether a single Staff/Officer cabin is required or
two Cabin each one for staff and
officer.
Single cabin is required.
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provided. The WC
shall be provided with an Exhaust Fan.
The Officers/Staff
Cabin shall be
insulated properly and shall be air
conditioned. Provision
of two Mobile charging points to be
made in
Officer/Staff‟s Cabin
as well as in both the Driving Cab and
Working area.
In addition two folding Berths shall
be provided at
suitable location without Cabin.
Air Conditioned is not
required
20. 3.1.6 The Under frame
material shall be of
corrosion resistant Structural Steel to
IRS: M 41 or Copper
bearing quality Steel to IS: 2062 Cu WC, of
welded integral
Structure. The Under
frame design shall be as per ICF Drawing
No AC/DC/EMU/C2-1-
1-201 with latest
Carriage Directorate
Drawing No. AC/DC/EMU/C2-1-
1-201 is 3660 mm wide EMU Stock and may not be suitable
for 3250 mm wide stock.
Therefore Drawing No. may be deleted.
BEML
The Under Frame to ICF Drawing
No. AC/DC/EMU/C2-1-1-201 pertains to EMU which has a width
of 3658 mm. The same is not
suitable for OHE with width of 3250 mm.
The under frame shall be
made as per SOD
requirement and got approved from RDSO.
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alteration. They shall
be assembled in jigs and fabricated by
welding. Trough floor
of 2.0 mm thick of
steel to IRS: M 41 steel shall be
provided in covered
area.
21. 3.2.4 Air Space
The air space
between the outer
and inner sheeting of the roof shall be
suitably ventilated as
also the air space inside walls and end
walls. Attachments
may pass through the
air space as required, but must be
designed, so that
they do not cause sections to form
sealed chambers or
lodgements for condensed moisture.
BHEL
Details of methods of air
ventilation is required.
It shall be finalised at Design
approval stage
22. 3.3
Page
22
Windows
Lift type window
made of powder coated Aluminium to
ICF drawing No
EMU/4C/ASR-5-4-402
Carriage Directorate
Drawing may be finalized at
Design stage. The Drawing No. may be deleted.
“Body Side Double sealed
glass windows for the air
Windows to be provided as
per ICF Design.
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with latest alteration
with fixed type poly OHE carbonate louver
on top and movable
glass window at the
bottom.
conditioned officers/staff cabin
and inspection Dome” to be added in the clause
“polyOHE carbonate” to be
replaced by “Polycarbonate
Polycarbonate is acceptable
23. 3.4.2 Hinged doors
provided on the side
walls for entry of drivers from outside
of the OHE car shall
be of inward opening
type and will give an opening of 750 mm
approximately.
BEML
Door hinged or sliding optional
may be specified.
Doors shall be hinged type.
24. 3.5 Lavatories The OHE car shall
have one Indian style
lavatory, which shall
be provided with fittings of Stainless
Steel as being used
on passenger train and approved by the
RDSO.
BHEL we presume one Indian style
lavatories
Details given at para 2.3.4.4 above
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25. 3.7.2
Page 33
Bogies
Bogie suspension design shall be coil
steel suspension in
primary and air
suspension in secondary stage. The
bogie design shall be
as per ICF Drawing No AC//EMU/M/ASR-
0-0-001 with latest
alteration.
Carriage Directorate
Earlier 8 wheeler OHE are running at max. operating speed
of 105 kmph, whereas recently a
Speed Certificate No.
SV.EMU.RAS dt.12.10.2011 for 8 wheeler DETC (with air
suspension) has been issued for
max. operational speed of 95 kmph. Therefore significance of
using air suspension bogie may
be reviewed and accordingly the
Bogie Drawing may be changed
BEML
Bogie to ICF Drawing No.AC/DC/M/ASR-0-0-001 may be
EMU Bogie which will not suit the
OHE application.
Bogie shall be as per ICF
Drawing No.DMU/DPC-0-0001 with Latest Revision.
26. 3.8.4
Page
24
Wheel Axles and Axle
Box
Carriage Directorate
“of Appendix 1 and width of
wheel shall be 127 mm minimum” may be deleted
Acceptable.
27. 3.8.5
Page
24
Wheel Axles and
Axles Box
The rim thickness of the wheel will be
adequate to provide
for specified wheel wear.
Carriage Directorate
Clause 3.8.5 may be deleted
Acceptable
28. 3.8.16
(iv)
Side wall and pillars:
The material of body
pillar shall be IRS M-41. Pillars shall be
continuous from sole
bar to cant-rail, except below window
openings, and shall
be braced by
BEML
Side Wall Pillars shall be of
Stainless Material.
Not acceptable
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longitudinal members
between adjacent pillars. Bracing being
designed to act as
integral part of the
exterior sheeting.
29. 3.9
Page
25
Brake System Carriage Directorate
Clause No.3.9.1 and 3.9.2 are
repeating these may be re-numbered.
Acceptable
30. 3.9.1
Page
25
Panel mounted air
brake system to
RDSO Spec: MP-0.01.00.19 (Rev-01),
June 2010
Carriage Directorate
Repeated
“110 kmph” to be changed to “105 kmph”
BHEL
Air brake system will be provided
with Fabricated Console without provision of MU in place of Panel
mounted Air Brake system to
RDSO Specification MP-0.01.00.19 MU operation is not required for
DETC application.
BHEL comments are
acceptable.
31. 3.9.2
Page 25
The composition „K‟
type non-asbestos Brake Blocks to RDSO
Specification No. C-
9508 with latest revision/amendment
shall be used. Brake
Rigging shall be as
per ICF Drawing No. EMU/M-3-2-064 with
latest alteration shall
be provided to prevent the Brake
Blocks riding down
the Wheel tapers. The
Carriage Directorate
The last line of the para mentioning the BC pressure of
1.6 kg/cm2 to be deleted.
Repeated
“Wagon weight 120t” may be
replaced by “Two wagons
weighing 60t each in gross load condition.”
Phooltas
Please clarify whether wagon weight is 120 t or both together.
Each Wagon weight is 60t
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Brake Cylinder
pressure for 20.32 t Axle load Bogies shall
be 1.6 kg/cm2.
32. 3.9.3
(i)
Provision of
Emergency Brake Valve.
An Emergency Brake
in case valve in each Driving Cab on
extreme right hand
side.
BHEL
D-1 Emergency Brake Valve will be provided in both CAB for
Emergency Brake application.
BHEL‟s comments are
acceptable.
33. 3.9.3 (ii)
Provision of Stand-by -Brake, in case of
failure of Distributer
Valve or any component in the
main Brake system.
BHEL We will provide Air Brake System
having an additional C2W Relay
Valve exclusively for Braking from SA-9 Independent Brake.
It shall be decided at the time of design approval
34. 3.9.3
(iii)
Parking Brake to
RDSO Specification No. CK 408 (latest
revision) capable of
holding fully loaded OHE Car with 120 t
trailing load of two
loaded Bogie Flat
Wagons in un-braked state on 1 in 33 down
gradient under wet
condition.
Carriage Directorate
“120t trailing load of two loaded bogie flat wagons” may be
replaced by “two trailing wagons
weighing 60t each in gross load condition”.
Phooltas
Please clarify whether wagon weight is 120 t or both together.
Each Wagon weight is 60t
two trailing wagons weighing
60t each in gross load condition---is acceptable
Total trailing load is 120t.
35. 3.9.5 Brake Rigging Carriage Directorate When Drawing of Brake rigging is mentioned in para 3.9.2 then para 3.9.5 may be deleted
Provisions of Specification
shall remain.
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36. 3.10.3 Compreg to RDSO
Spec. No. C-9407 – type –II shall be used
for clamp.
BHEL
We will provide polypropylene clamps.
RDSO‟s Specification shall
prevail.
37. 3.10.4 Colour identification
scheme of pipes. Pipes, ducts and
conduits shall
conform to an identification colour
scheme. This shall be
approved by RDSO.
BHEL
We will provide colour stickers instead of paint because painting
on Stainless Steel pipe is not
possible.
Poly urethane Paint scheme
as per RDSO‟s Specification shall be followed.
38. 3.11 Page
27 &
28
Interior furnishing Carriage Directorate “LP sheet conforming to STR
No.C-K514 (Latest Revision)
may be used for thermosetting resin bonded laminated sheet for
the OHE car” to be added after
“IS: 2046”. And last sentence of
the para to be deleted.
Acceptable.
39. 3.12
Page
28
Ceiling and panelling Carriage Directorate
“may be used for the OHE
car.” To be added after “C-K601 (Latest Revision)”
“or Non-asbestos limpet Sheet
to RDSO Specification No. C-
K601 (Latest Revision)” to be deleted
Acceptable.
40. 3.13
Page 28
Flooring
Floor of the vehicle shall be as per ICF
Drawing No.
EMU/MASR-41-001
Carriage Directorate
Drawing may be finalised at Design stage.
Therefore, Drawing No. may be
deleted.
ICF Drawing to be followed
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with latest alteration.
The opening in the flooring for passage
of Pipes and Cables
through the floor shall
be so constructed as to prevent any
seepage of oil.
In addition to give effective protection
against the spread of
fire originating
beneath the Body.
41. 3.15
page
28
Cattle Guard
Detachable type
cattle guards shall be provided under each
buffer beam. The
cattle guard shall be
fitted with adjustable rail guards so as to
maintain the
minimum free space above the rails under
all conditions (see
item 7 of clause 2.0). i) Cattle guard and
RCF Drawing No.
EM26108 with latest
Amendment. Or Cattle Guard and
ICF Drawing. No.
EMU-2-6-046 with
Carriage Directorate
Sub Para i) may be deleted.
The Drawing may be finalised at design stage
Cattle guard as per RCF
Drawing. No. EM26108 with
latest amendment.
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latest alteration.
42. 3.22
Page 31
Parking Brakes
In case Parking Brakes are proposed
the features of the
Brake Actuator, its type and the
schematics of its
operation shall be furnished.
Carriage Directorate
Sub Para (8) may be written as “Feature of the proposed parking
Brake Actuators, its type and the
schematics shall be furnished.”
Acceptable.
43. 4.0 Illumination
Driving Cabs, Staff
Cabins, Workshop & Storage space shall
be provided with
level of illumination of at least 30 lux at the
Working Plane level
(1 m above the floor
level). OHE Car lighting shall be
provided with 18 W,
600 mm x 26 mm double capped
Fluorescent Tube
lights along with its
fittings and Electronic Lamp Ballast as per
RDSO Specification
No. RDSO/PE/SPEC/TL/00
11-2000 (Rev.1) with
the latest revision
PS & EMU Directorate
Fluorescent tube light fittings
“with wire mesh guard” may be added.
BHEL
Speed should be 105 km/h in
Acceptable.
Wire mesh guard shall
provide protection to the fitting.
-
shall be used.
44. 4.3.2 Battery Charger for
charging Batteries of 110 V of 120 Ah
capacity Lead acid
maintenance free storage Batteries of
capacity as
mentioned at Clause No.5.3.2.20. The
Battery Charger shall
comply with ICF
Specification No. ICF/Elect/067 (Rev.1)
and Battery charger
for 24 Volts
ICF Specification No.
ICF/Elect/067 (Rev.1) mentioned in clause is for the
Battery Chargers provided in
EMU/MEMU motor coaches suitable for 100 V, 95 Ah
batteries.
BHEL
Para not complete. However, Battery Charger for 24 V Batteries
shall be Engine mounted charging
Alternator.
1. Battery Charger for 24 V
Batteries shall be Engine mounted charging alternator.
2. Battery Charger for
charging Batteries of 110 V of 120 Ah capacity. Battery
Charger shall be from RDSO‟s
approved Vendor as per Specification No.
RDSO/PE/SPEC/AC/0008
(Rev.2).
45. 4.3.4 A skid mounted
portable Diesel
Generator similar to
„Honda‟ make (petrol start Kerosene run or
Petrol start, Petrol
run) of 3 kVA (minimum), 240V, 50
Hz along with
transformer shall be
provided to meet 150 Amps light weight
IGBT welding
machine load and other Auxiliary load of
search lights (2x250
Watts), Emergency
BHEL
Details of Transformer may be
furnished. Also the scope of
supply welding machine may be clarified.
It shall be decided at the
time of design approval stage
-
light and for other
such purposes.
46. 4.5.2 Twin Beam Head light Twin Beam head
lights shall be
provided at both ends. The head light
shall confirm to
RDSO‟s Specification No
ELRS/SPEC/PR/0024
(Rev-1) Oct. 2004.
The operating voltage of Head Light shall be
110 V DC.
PS & EMU Directorate Twin Beam head lights in
EMU/MEMUs are provided as per
RDSO‟s Specification ELRS/SPEC/PR/0024 (Rev-1)
Oct. 2004; which is with DC-DC
convertor. The operating voltage of EMU/MEMUs Head Light is 24
Volts.
BHEL Head Light as per RDSO‟s
Specification No.
ELRS/SPEC/PR/0024 (Rev-1) Oct. 2004, the operating voltage of
Head Light shall be 24 V DC. For
this purpose 110/24 V DC-Dc as per RDSO Specification No.
ELRS/SPEC/DC-DC
Convertor/0021 Rev.1..
Operating voltage of head light may be accepted as 24
Volts DC.
24 Volts DC Supply for twin beam head light shall be
taken from 110 DC source
with DC-DC convertor.
47. 4.5.3 Tail light Two aspect (red and
white) LED type 24 V
15 W tail light shall
be provided at each end to comply with
General &Subsidiary
Rules of Indian Railways.
PS & EMU Directorate
In EMU & MEMUs LED based
flashing type tail lamp having
one aspect (RED) is provided.
BHEL Specification of Tail Light may be
furnished.
May be accepted as PS & EMU Directorate‟s comments. Para
shall contain RED aspect Tail
Lamp. The Tail Lamp shall as
per RDSO‟s Specification No. RDSO/PE/SPEC/TL/0119-
2000 Rev. “0”.
48. 4.5.5 Marker light
Marker light of LED type as per RDSO‟s Specification No ELRS/SPEC/PR/0022 (Rev-1) Oct. 2004 shall be provided on either end of the OHE Car.
PS & EMU Directorate
Provision of marker light needs
to be checked with respect to provision of two aspect (Red &
White) LED type tail lights as per
Clause No. 4.5.3 of the above Specification.
Comments of PS & EMU
Directorate are not acceptable
Marker light of LED type as
per RDSO‟s Specification No
ELRS/SPEC/PR/0022 (Rev-1) Oct. 2004 shall be provided
on either end of the OHE car.
49. 4.5.6 Search light BHEL It shall be decided at the time
-
OHE car shall be
provided with two 250 W searchlights
with Metal Halide
lamps, one on each
end, for inspection of the OHE while on the
run. Searchlights
shall provide a high intensity illuminating
beam and capable of
swivelling on
universal joint type supports.
Specification of search light may
be furnished.
of design approval stage
50. 4.5.12 Flood light
Four flood lights giving diffused light of
75 watts shall be
provided with each
OHE Car.
BHEL
Specification of the flood lights may be furnished.
It shall be decided at the time
of design approval stage
51. 5.3.2.1 Diesel Engine
Two independent
under-slung naturally aspirated, turbo-
charged and after
cooled horizontal
diesel engines of proven design of
indigenous make (like
Cummins NTA 855 R), complete with all
accessories, suitable
for traction service
Motive Power Directorate
(i) The calculation for horse
power requirement as 285 hp, for operation in adverse
conditions referred in clause 2.0
of chapter –II may be
submitted. (ii) CRDI type injection system
in Engine is a special feature.
Reason for considering the same may be clarified. It has got
financial angle also. Either we
should for CRDI Engine or for an
BHEL
Horizontal word to be removed.
This is because vertical Engine can also be suitable for this
application. Power required for
lifting Platform may be drawn
from main power pack.
Tractors India (P) Limited
Two independent turbo-charged and after-cooled Diesel Engines of
proven and established design,
complete with all required
Two independent under-slung
naturally aspirated, turbo-
charged and after cooled Diesel Engines of proven
design suitable for 8 Wheeler
Diesel Electric Tower Car of
reputed make, complete with all accessories, suitable for
traction service under the
climatic and operating conditions obtained in India,
shall be provided. The engine
shall be of Common Rail
-
under the climatic
and operating conditions obtained in
India, shall be
provided. The engine
should be preferable of Common Rail
Direct Injection
(CRDI) type. Alternative proposal
with other
indigenously
manufactured, proven designs of horizontal
diesel engines may be
offered. The continuous traction
rating of each engine
shall not be less than 285 hp or higher at
1800 rpm after due
de-rating for
environmental temperature of 55
0C. It shall be
battery started. Specific Fuel
Consumption (SFC)
shall be low. Robust construction, low
maintenance and
satisfactory record of
past performance are
ordinary Engine. accessories, suitable for traction
services under the climatic and operating conditions in India shall
be provided.
The Engine(s) shall be with
electronically controlled fuel injection and control system of
latest proven designs to conform
to emission norms and best of performances under variable load
conditions as essential for the
application. The Electronic Fuel
system should provide low fuel consumption at reference site
conditions in actual application
with variable loads. The Diesel Engine, electronically
controlled, should provide self-
diagnostic details which on demand should be able to provide
information on defects / faults,
Alarm details etc. so that
maintenance & repair is done within shortest possible time-line.
Continuous duty Power rating of
each Engine must not be less than 285 HP @ 1800/2100 RPM or
higher as required & established
at reference site conditions of 550C & 1000 Mtrs AMSL as
mentioned in 1.2.1.3.
Adequate and sufficient
allowances shall be incorporated
Direct Injection (CRDI) type.
Alternative proposal with other indigenously
manufactured, proven
designs of horizontal diesel
engines may be offered. The continuous traction rating of
each engine shall not be less
than 340 hp (approximately) or higher at 1800 rpm after
due de-rating for
environmental temperature of
55 0C. It shall be battery started. Specific Fuel
Consumption (SFC) shall be
low. Robust construction, low maintenance and satisfactory
record of past performance
are of paramount importance. Tenderer shall furnish full
particulars of the engine with
the offer. Adequate allowance
shall be made in the power of the diesel engine for the de-
rating under most adverse
climatic conditions stated in Clause-1.2 of Chapter-I of
this specification. Successful
tender shall give detailed calculations for engine‟s
suitability and its rating.
-
of paramount
importance. Tenderer shall furnish full
particulars of the
engine with the offer.
Adequate allowance shall be made in the
power of the diesel
engine for the de-rating under most
adverse climatic
conditions stated in
Clause-1.2 of Chapter-I of this
specification.
Successful tender shall give detailed
calculations for
engine‟s suitability and its rating.
while working out on-site power in
application with derations and Power losses as encountered
under adverse operating
conditions.
The Engine shall be suitable for 24 VDC batteries starting. The Engine
should be of robust construction
with low maintenance requirements and satisfactory
performance levels. Regular
Engine service & maintenance
requirements and schedules are to be clearly indicated and confirmed
by OEM.
52. 5.4.1
page
38
The cooling
Equipment shall be
guaranteed to work efficiently under the
climatic conditions
specified in Para-1.2 of Chapter- I of the
Specification.
The Radiator and fan
shall be of adequate capacity with 30%
choked condition of
the radiator used. Air
Phooltas
As roof mounted radiator has
been specified, 15 % chocking factor. Kindly be accepted. 30%
chocking factor radiator can also
be supplied but will unnecessarily add to the cost hence, we request
that this clause may please be
amended.
Specification Para shall be
retained.
-
flow required for the
radiator fan shall be at least 15% more
than that actually
required to make up
for any reduction in air flow due to train
movement. The
limiting ambient capability of the
cooling system shall
be minimum 55 0 C
with 30 % chocked condition
53. 5.4.4 The maximum
operating water temperature shall
normally not exceed
950C.
Tractors India (P) Limited
The maximum operating temperature of engine cooling
system along with alarm
temperature and shut-down /
safety shut-off temperature are to be mentioned in submission.
Comment: All modern engines are
with pressurised cooling system to accommodate higher
temperatures and better cooling
performances. All modern engines operate at about 920 to -980C with
alarm and shut-off at about 1040C
& 1100C.
Specification Para shall be
retained.
54. 5.4.8 Cooling Proving trials shall be carried out in
a test bed at the
contractor‟s premises
Phooltas Trial may kindly be carried out on
the Car in filled during
commissioning in place of
Test to be carried out in the firm‟s (OEM) premises
-
to prove the
adequacy of the cooling system
comprising of radiator
and Hydraulic Oil
Cooler for the prototype in the
presence of RDSO‟s
representative. The procedure for such
testing shall be
submitted and got
approved from RDSO.
manufacturer premises.
55. 5.4.10 Page 39
The Tenderer shall
submit drawing for
mounting details of Radiator Assembly,
Fan drive
arrangement and
ensure that these fit completely within the
overall dimensions of
OHE Car.
Phooltas
Compressor capacity of Cummins
Engine is 5 CFM at low idle speed, hence, Cummins are requested
that the same may be amended
accordingly.
It shall be decided at the time
of design approval stage
56. 5.5 The CRDI Engine shall
be electronically
controlled using
suitable and proven ECUs.
Phooltas
Cummins are offering a proven
mechanical Engine for this
application. The same is already used and performed satisfactorily
in earlier DETC manufactured by
ICF. However, please note that they have offered Electric
Governing system for engine
control (LCC) as well as man
Electric Governing system for
engine control (LCC) as well
as main Traction Alternator
excitation control to be provided.
-
traction alternator excitation
control. Please amend this clause accordingly.
57. 5.3.2.12 The Exhaust pipe
shall not leave OHE
carbon soot on important assemblies
like Traction Motors,
axle drive etc. The pipe shall be taken to
the roof with
adequate insulation
to with stand 7000C. The silencer shall be
provided on the
dished rooftop.
Motive Power Directorate
Describes that the
Pipes shall be taken to the roof. It is mentioned that the Exhaust
Pipe alongwith silencer, shall be
provided on dished roof. The reason for considering this type
of design may be advised.
However, in case of under slung
power pack, the Exhaust pipe is provided horizontally and
located under floor avoiding the
position near footsteps of the Vehicle.
Motive Power Directorate
Remarks are acceptable
58. 5.3.2.19 The Exhaust Emission
shall be below the
limit laid down in UIC/ORE No.
B13/RP22/E Clause-4
of the entire engine range of operation
from idle to full power
and shall be
measured as per UIC/ORE/B13/RP21E.
The exhaust opacity
shall not exceed 20 as measured by
Hartridge smoke
Meter or equivalent
BHEL
The exhaust emission shall be
below the limit laid down in UIC/ORE No B13/RP22/E
Tractors India (P) Limited
Indian Pollution Control Requirements for Heavy Road Vehicles as per circular / Pollution Control Board to mention ........
Existing Specification shall be
retained
-
scale under all
conditions including acceleration of the
Engine. A suitable
catalytic converter
shall be connected in Exhaust Pipe to limit
the Emission.
59. 5.3.2.20 The tenderer shall supply the complete
system including
Engine starter and
Battery Chargers. Batteries shall be of
following ratings:-
24 V, 290 Ah Battery for Engine
cranking.110 V,
120Ah Battery for
control and auxiliary circuits.
BEML 24V, 290 Ah Battery RDSO
standards to be incorporated.
Battery Charger for 24 V batteries shall be Engine
mounted charging Alternator
60. 5.7.7,
5.8 & 5.9
Traction Motor, Motor
suspension & Axle Drive & Bearings
Tower wagon shall
be fitted with 4
traction motors, two on each bogie, The
motors shall be typed
4601 BX with pinion and earth return
brush assembly as
per BHEL schedule
PS & EMU Directorate
All types are Traction Motors including Traction Motors
provided in EMUs & MEMUs are
dealt by traction motor group of
Electric Loco Directorate. The comments on detailed
design parameters and
suitability of BHEL make 4601 BX Traction Motor may be
obtained from traction motor
group of Electric Loco
CGL
Tower Wagon shall be fitted with 4 Traction Motors, two on each
bogie. The Motors with pinion,
Earth return brush the motor shall
be of DC series wound. The motor shall be complete with all its
accessories and shall include
pinion, earth return brush, gear wheel and gear case. Field proven
motor suitable for DETC
application shall be supplied.
Tower Wagon shall be fitted
with 4 Traction Motors, two on each Bogie, the Motors
shall be type 4601 BX (BHEL
make) or TM 2141A (CGL
make) or similar proven design.
The DC Series Motor shall be
complete with all its accessories and shall include
pinion, earth return brush,
gear wheel and gear case.
-
item No 000501 B
and gear case as per schedule item No
000502 B and shall
be series wound
working on the pulsating current.
Directorate. Phooltas
Please amend to BHEL/CGL in other approved make.
BEML
TMS of BHEL make or any other
equivalent which are used in similar rail application.
Field proven motor suitable
for DETC application shall be supplied.
61. Motor rating
The one hour rating of Traction Motor
shall be of 97%
excitation and
continuous rating shall be adequate t
give the required
performance. The motor will be
provided with 3%
permanent ohmic
field shunting.
Motor Suspension &
Axle drive The traction motor
nose suspended with
plane sleeve bearing arrangement. Each
Traction Motor shall
be drive one axle of
its motor bogie through a single
reduction gear drive
enclosed in a rigid
5.8.1
Four Axle hung, Nose
suspended and self ventilated DC series Traction Motors of
proven design and approved
by RDSO two on each Bogie,
shall be provided on the OHE Car. The Armature coils shall
be formed of polyimide
(kapton) covered Copper Conductors and suitably
impregnated.
TIG/MIG welding shall be used for the Commutator.
The technical/ constructional
requirements as given in
Annexure – 6 shall be complied with the traction
motor of similar design and
construction with proven performance in traction
application on IR will be
preferred. Traction motors shall be 4601 BX type of M/s.
BHEL or TM 2141 A of M/s
CGL type or similar proven
-
and water tight gear
case firmly secured to prevent damage by
movement and
vibration under the
most severe operating condition
but easily removable
for attention to the gear.
The armature shall be
mounted on anti-
friction bearing of approved make. The
inner race shall have
adequate interference for the duty.
design with Plains Sleeve
Suspension Bearings. Class of insulation of TM shall be “H
class” (180 0C Class). Each
Traction Motor shall have
minimum output not less than 115 KW (Approximately).
62. 5.8.1
(iv)
Two auxiliary self-
cooled, Brushless
Alternators, one with each Engine, shall be
provided in the
Inspection OHE Car with suitable
Regulating Equipment
and Battery Charger to supply 122 V
D.C.+ 5% regulated
voltage from idle
speed to maximum speed of the engine
for meeting the
following loads:-
BHEL
Source of Power for search light
may be clarified. As per Clause No. 5.8.1, it is from Auxiliary
Alternator, whereas as per clause
No. 4.3.4 is from skid mounted portable 3 kVA Diesel Generator
Set.
One Auxiliary self-cooled,
Brushless Alternators with
each Engine shall be provided in the inspection OHE Car
with suitable Regulating
Equipment.
-
i. Battery Charging
(110 volts, 120 Ah Batteries) provided
on the OHE Car- 10
Amps.
ii.Lights and fans load of the OHE
car-25 amps.
iii. Flood Lights iv. Search lights
v.Control System 10
Amps.
vi. Twin Beam Head Light of 250
watts,110 V D.C. as
specified in Chapter-IV of
this Specification.
vii. Power required for forced cooling
for Rectifier, if
warranted,
approximately 1 kW.
viii. Heater load one
each of 1 kW in both the Cab.
ix. The Air
conditioning & Ventilation load of
observation Dome
and Officer‟s
Cabin.
-
The Alternator shall
have a rating of minimum 9
kW.(Electrical load
requirement shall be
got approved from RDSO)
63. 5.8.2.1 Drive Arrangement
The Auxiliary Alternators shall be
driven from the main
Engine by a single
pulley and V-belt arrangement.
BHEL
Drive arrangements for Auxiliary Alternator may be clarified as per
this clause it is from Engine end,
whereas as per clause no. 5.7.5.4
it is through alternator end.
The Clause 5.7.5.4 shall be
corrected as “The provisions shall be made for driving the
Auxiliary alternator and Air
Compressor through a
common shaft extension from Engine through V-Belts and
pulley on the extended shaft
of the Engine, Pulley of C-section to IS: 3142 shall have
a suitable PCD to be approved
during Design approval stage.
The Pulley shall be push-fit with suitable securing
arrangement. The material of
the Pulley shall be steel forged conforming to IS:
2004 gr.III”
64. 5.10 Motor contactor
Motor Contactor of BHEL supply, one
Contactor for each
Motor, suitable for operation in
combination with
overload Relays, for
PS & EMU Directorate
ICF Drawing No. EMU/M2-9-0-503, is applicable for installation
of under slung equipments in BG
AC EMU stock only. The installation of control equipment
in OHE Car may be different, as
there are other equipment like
CGL
Motor Contactor One Contactor for each motor,
suitable for operation in
combination with overload Relays, for opening the Traction Motor
circuit in overload and under fault
condition shall be provided. These
RDSO/ICF approved make
shall be added in place of BHEL.
-
opening the Traction
Motor circuit in overload and under
fault conditions shall
be provided These
Contactors shall be located in dust-proof
cubicle mounted on
the under frame in such a way as to
prevent all risk and
damage to other
apparatus from arcs formed by their
operation. Mounting
of the motor switch group No.1 and 2
shall be as per ICF
Drawing No. EMU/M2-9-0-503 (latest).
diesel-alternator set etc., which
may be required to be mounted under slung.
Contactors shall be located in
dust-proof cubical mounted on the under frame in such a way as to
prevent all risk and damage to
other apparatus from arcs formed
by their operation. Remarks of CGL
We will not able to supply BHEL
make contactor. They be CEW make which is an approved
supplier for same application in
700 & 1400 Hp DEMU.
BHEL ICF Drawing No. EMU/M2-9-0-503
(latest) may be provided.
Phooltas please amend to BHEL/CGL in
other approved make.
65. 5.10.7.2 REVERSER
Electro pneumatically
operated Reverser of BHEL make for
changing the
direction of rotation shall be provided in
each Motor circuit.
These shall be
mounted in cubicle on the under frame and
shall be of robust
design, remote
Phooltas
Please amend to BHEL/CGL in
other approved make. CGL
Electro pneumatically operated
Reverser for changing the direction of rotation shall be
provided in each motor circuit.
These shall be mounted in cubicle
on the under frame and shall be of robust design, remote operated
and suitably interlocked to ensure
that no movement can take place
RDSO/ICF approved make
shall be added in place of
BHEL.
-
controlled and
suitably interlocked to ensure that no
movement can take
place while they carry
current. Provision shall be made for
hand operation. In
emergency, the Reverser Contact
shall have self wiping
action.
while they carry current. Provision
shall be made for hand operation, the reverser contact shall have
self-laping action.
Remark
We will not be able to supply BHEL make Reverser. The supplier
will be approved supplier for the
same application in 700 & 1400 hp DEMU.
BHEL
With respective to remote control
reverser, we understand is that the operation from driver‟s desk.
BEML
Reverser of BHEL or any other equivalent which are used in
similar rail application.
Operation from Driver Desk is
to be kept.
66. 5.10.7.3 Mounting
arrangement shall be as per ICF drawing
No. EMU/M2-9-0-503
(latest alteration)
PS & EMU Directorate
The comments against the clause no 5.10 as per para7
above.
Mounting shall be under
slung.
67. 5.10.7
.4
Motor cut out switch
Two four position
rotary switches, of
BHEL make, one for motor 1&2 and other
for motor 2&3 shall
be provided. The first switch will have
position marked as
„Normal‟ 1 out‟,‟1 & 2‟
PS & EMU Directorate
Motor cut out switches given in
the clause are as per the control
circuit of AC EMU and MEMUs. Suitability/Requirement of these
motor cut out switches are to be
checked as per the requirement of the control circuit of the self-
propelled OHE car
Phooltas
Please amend to BHEL/CGL in
other approved make.
CGL Motor cut out switch: Two four
position rotary switches, one for
motor 1 & 2 and other for motor 3 &4 shall be provided. The first
switch will have position marked
as „normal‟, „1 out‟, „1 & 2 out‟
RDSO/ICF approved make
shall be added in place of
BHEL.
-
out and „2 out‟. The
second switch shall have markings
„normal‟, „3 out‟,‟3
and 4 out‟ and „4 out‟.
The switches shall have 16 contacts to
provide various
facilities for control as required including the
following.
and „2 out‟. The second switch
shall have marking „normal‟, „3 out, „3 and 4 out‟ and „4 out ‟.The
switches shall have 16 contacts to
provide various facilities for
control as required including the following.
Remark: We will not be able to
supply BHEL make reverser. They supplier will be approved supplier
for the same application
BEML
Motor cut out switch two, four position rotary switches of BHEL
make or any other equivalent
make which are use in similar rail application.
68. 5.10.7.5 Motor Negative cut
out switch
Hand operated motor negative contactor
switch of BHEL make
shall be provided on the negative side of
the motor and it shall
be possible to isolate defective motors both
on positive and
negative side.
Suitable interlock as required shall be
provided. The
contactors shall be of
PS & EMU Directorate
Suitability/Requirement of the
motor negative cut out switches are to be checked as per the
requirement of the control circuit
of self-propelled OHE car.
Phooltas
Please amend to BHEL/CGL in
other approved make. CGL
Negative cut out switch are not
required for the subject application. Negative Contactor
shall be provided on the negative
side of the motor circuit and it shall be possible to isolate
defective motor both on + ve & -
ve sides switch interlocks as
required shall be provided. The Contactors shall be of adequate
capacity to with stand the short
circuit current.
Remarks of CGL are agreed.
This Para shall be modified
accordingly.
-
adequate capacity to
withstand the short circuit.
BEML
Motor negative cut out switch hand operated motor negative
contactor switch of BHEL make
are any other equivalent make
used in similar rail application.
69. 5.11 All motor contractors
on OHE car shall be
suitable for a remote operation from any
driving cap through
the contractors shall
be of Elctro pneumatic type of
BHEL make shall be
provided with blow out coils and arcing
horns, etc to brake
the current without
deriment to their working parts or
adjacent equipment.
All contact trip, interlocks, pins and
plungers etc. Shall be
easily accessible for maintenance.
PS & EMU Directorate
ICF drawing No. EMU/M7/ASR-7-
0-706 (latest version) is the schematic diagram for control
circuit specifically for AC EMUs
and MEMUs. The same may not
be applicable for self propelled OHE Car.
CGL
All motor contractors on OHE car
shall be suitable for remote operation from any driving cab
through traction motor overload
„reset‟ switch. The motor
contractor shall be of electro pneumatic type and shall be
provided with blow out coils and
arcing horns, etc. To break the current without detriment to their
working parts or adjacent
equipment. All contact trip,
interlocks, pins and plungers etc. Shall be easily accessible for
maintenance.
Remark We will not be able to supply
BHEL make contractor. They be
CEW make which is an approved supplier for same application in
700 &1400 hp DEMU.
Phooltas
Please amend to BHEL/CGL in other approved make.
CGL remarks are acceptable.
70. 5.12 A
(a&c)
Connection and
operation of the
PS & EMU Directorate
ICF Drawing No. EMU/M7/ASR-
Phooltas
Phase to phase voltage is not
Successful Tenderer shall
submit the Drawing for
-
page
43 to 45
contractors shall be
as per ICF Drawing No EMU/M7/ASR-7-0-
706(Latest Version)
7-0-706 (latest version) is the
schematic diagram for control circuit specifically for AC EMUs
and MEMUs. The same may not
be applicable for self propelled
OHE car.
required, thus the clause may
kindly be deleted.Control battery is also not required, the same
may kindly be deleted. This
amendment has been requested,
by traction equipment supplier. BHEL
ICF Drawing No. EMU/M7/ASR-9-
0-706 (latest may be provided).
connection and operation of
contactors at Design approval Stage.
71. 5.13 The motor contactor
shall open the circuit
they protect
automatically on over load and shall be
capable of clearing
the resultant arcs under all conditions of
overload.
PS & EMU Directorate
ICF Drawing No. EMU/M7/ASR-
7-0-706 (latest version) is the
schematic diagram for control circuit specifically for AC EMUs
and MEMUs. The same may not
be applicable for self propelled OHE car.
This provision shall be
covered in Traction Motor
Portion.
72. 5.13.1.3
Suspension Bearings Taper roller suspension bearing shall be grease
lubricated.
BHEL As per clause 5.8 bearing mentioned is plane sleeve bearing, where as
against this clause it mentioned as tapper roller bearing. Same may be Clearfield.
Plain sleeve Suspension Bearing shall be in place of taper roller
Bearings
73. 5.13.1.4 & 5.13.1.5 (Pg 44 of 80)
PS & EMU Directorate Traction Motors are dealt by traction motor group of Electric loco directorate accordingly. Comments may kindly be obtained from Electric Loco Directorate.
This Para shall be covered in TM portion
74. 5.16.2
(iii &
iv)
A suitably designed control panel shall be provided in the OHE car for housing all
Phooltas
Cummins does not recommend to
monitor fuel pressure as well as
Both the gauges have been
removed from the
Spoecification
-
the control accessories. The panel shall be so situated so as to provide easy access to all the components for their maintenance /service.
the boost pressure, hence gauges
for this parameter will not be supplied. Please amend the
clause.
75. 7.6.1
P-55
All steel castings wherever used and welding joints shall be subjected to radiographic testing after manufacture / repair, to a suitable scheme/ standard suggested/approved by RDSO.
Phooltas
RDSO has accepted the ultrasonic testing of welding joints. This
clause may kindly be amended
accordingly.
Not Acceptable
76. 7.7 Page
55
One of the power and trailer bogies shall be subjected to exhaustive stationary tests at Contractor’s works in the presence or RDSO representative
Carriage “Trailer Bogie” to be deleted.
Phooltas There is no trailor bogies are to
powered. In case approved bogie
design is used the test should be waived please amend suitably.
Acceptable
77. 7.10
Page
56
Riding Quality The riding quality tests shall be conducted at a speed which is 10% higher than the maximum specified operating speed, i.e. 121 km/h on a section of mainline track over which there are no temporary speed restrictions and which is considered by the railway
Carriage Directorate “121 km/h to be replaced by
“115 km/h. Test shall be conducted as per
RDSO conventional DAS method as mentioned in MT-334
New Para for EBD test at Maximum operating speed (Arrived by Oscillation trials) to be added in the specification
BHEL Since the design of Bogie and suspension is of Indian Railways, the prime responsibility of performance is lies with Indian Railways.
Views of Carriage are acceptable
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as being in a generally run down condition for main line standards but without speed restrictions. The tests shall be conducted from a reasonably low speed, which is considered safe by the Indian Railways, upwards insteps of 10-15 km/h to establish the performance at the specified speeds.
78. 7.11 Acceptance criteria The dynamic augment at maximum speed of 110 km/h plus 10% shall preferably be within 50% at rail level. The lateral forces at maximum speed will be within 4-t per axle. The vertical acceleration shall not exceed 0.3 g both in vertical and lateral modes in tare and loaded conditions. The sparling ride index shall not exceed four. The derailment co-efficient shall not exceed one. OR, latest as laid down by RDSO at the time of inspection or oscillation.
Carriage Directorate “110km/h” to be replaced by
“105 km/h” “OR” mentioned in 5th line may
corrected
BHEL Since the design of bogie and suspension is Indian Railways, the prime responsibility of performance is lies with Indian Raiways. Maximum speed is 105 kmph.
110 kmph speed shall be kept.
79. 2.12 (ii)
Period of continuous running at 110 km/h on
BHEL Speed should be 105 km/h instead of
-
generally tangent track
followed by frequent to and fro movement at walking pace for 1-1/2h)
110 kmph, as max speed of car is
specified at 105 kmph.
Annexure 1 80. Sl.
No.09
Under Frame Carriage Directorate
Drawing No. ICF Drawing No.
AC/EMU/M/ASR-0-0-001 may not be suitable for 3250 mm wide
stock. Therefore, Drg. No. may
be deleted.
The Drawing of Under Frame
of 8 wheeler Diesel Electric
Tower Car can be finalised at the stage of Design/Drawing
approval Stage.
81. Sl. No.
11
Bogie Design Carriage Directorate Comments same as S.N. 11
above
Bogie shall be as per ICF Drawing No. DMU/DPC-0-0-
001 with latest alteration.
82. Sl. No.12
Windows Carriage Directorate Comments same as S.N. 10
above
83. Sl.
No.12
Flooring Carriage Directorate
Comments same as S.N. 22 above
Annexure 2
84. Sl. No.1
List of Drawings/Calculation
Carriage Directorate “OHE OHE Car” to be corrected. Layout Drawing Should contain
end view of the OHE superimposed on Diagram 1 D of BG SOD Revised 2004
Acceptable
85. Sl.No.21,31 & 46
List of Drawing/Calculation
Carriage Directorate OHE OHE Car to be corrected
Acceptable
86. New Clause
Fire prevention measures:
PS & EMU Directorate The relevant provision of code of practical for prevention of fire on
PS & EMU Dte comments are acceptable
-
EMU stock no RDSO/PE/CP
/EMU/0001 (Rev.0) of August‟2003 and amendment no 1 of July 2006 issued by RDSO shall be included.
87.
General
Carriage Directorate The comments on the equipments such as traction motor, rectifier, cables etc. may be obtained from Electric Loco Directorate. In addition to the above, numbering of the
clauses of the above specification is required to be corrected. Desired operational speed EBD on level track with two un-braked
wagons of 60t each on levelled/gradient track should be mentioned in the specification. It is suggested that EBD should be verified from software available in the Motive Power Directorate. It should be checked from GR/SR that whether two un-braked wagons with one power car is permitted as GR/SR or not. However, the operability of the two un-braked Wagon may be checked according to G&SR before finalising the specification.
Noted
88. M/s. Titagarh Wagons limited As you may be already aware, M/s Titagarh Wagons Limited is keen to participate in the above tender by virtue
of having expertise and experience of manufacturing and supplying self-propelled 25kV ac BG EMU rolling stock
to Indian Railways, which are in operation on IR network for over 2 years now.
We have studied the revised “draft” Specifications No. TI/SPC/OHE/8WDEIC / 0090(2/09) Rev “1” of August,
2011 for the tendered item, available at your website and have found that the manufacturer is required to
design a completely new vehicle with necessary design calculations required to be submitted to RDSO for
Noted
-
approval as per the clause no.3.22, (a) 1 to 8, page no. 29 of technical specifications.
In this connection we would like to submit our comments as below:
1. The tendered quantity is small (55 nos.) and the DETC business is limited to small numbers due to the very nature of the stock. Developments of new platforms can be undertaken for products of recurring demand and in
good numbers. Detailed design calculations for new platform is a very expensive exercise and would needlessly make the product expensive and make the evaluation more difficult. The calculations needed on a rolling stock are very time-consuming and money- intensive. Reinventing a fresh/new design would make the product unreasonably expensive. The need for transfer of technology (TOT) from a designer / manufacturer cannot be
ruled out. In the process new design and development costs for such small numbers would make the stock unreasonably expensive for acceptance by the Railway Board.
2. As DETC is a maintenance-cum-emergency vehicle to be manufactured in small numbers, it is imperative to
have common designs for IR. New designs would impose new maintenance practices and schedules, which
would be different from the existing stocks. IR is already facing problems in assimilating various new designs
of 4-Wheeler DETC. As has been discussed in various fora, maintenance of DETC is causing serious concerns
all over IR on account of non-standardization of the product. A further proliferation of designs would strain
the already stressed system.
3. A new design can take a long time to go through the rigors of final acceptance by IR thereby causing
considerable loss to the exchequer in the process.
4. Designing a new rolling stock of this nature would considerably narrow the expanse of competitive bidding,
restricting the participation to a limited few.
5. Bogie: The revised draft Specifications of August 2011 specifies that the bogie should conform to existing ICF
bogie design applicable for EMU Motor coach (drawing no. AC//EMU/M/ASR-0-0-001). EMU Motor coach
bogies, as you are aware, are tested and approved by RDSO to run at 100 kmph operating speed and a
maximum test speed of 110 km/hr on IR network. On the contrary, the stipulations for operating speed for
the tendered DETC has been specified to be 105 kmph (clause No. 2.0, sub-clause 9, Page No.12 of
Technical Specifications) for which the vehicle needs to clear maximum test speed of 115.5 kmph (+10%).
However, incase the operating speed of 105 kmph for the DETC is to be achieved, a new bogie would be
required, which would be a very tall order since bogie approval process is very rigorous and stretch much
-
longer. Further, the bogie and the new design of body will have to be dynamically matched in order to
achieve the specified speed potential.
It is hence in the interests of all stakeholders that the 8-Wheeler tower wagons be inducted into IR on
common design platform. This would eliminate the need of separate designs for a very small stock and also
eliminate the requirement of detailed design review by IR for all the aspects of design (Detailed FEA,
Dynamic analysis, Stress analysis, Transmission, Oscillation Trials etc.). Matching of power demand by
traction motor for different operating conditions and demand on the power pack (para 5.2, page No. 35 of
the technical specification) and also development of characteristics curves etc will involve detailed designing
calculations. Moreover standard designs available on IR have proven to be very reliable.
In the meantime, please recall that ICF already has a proven design of a similar DETC vehicle which are
plying successfully on the IR network.
In view of the above we earnestly request you to proliferate this existing ICF design of 8-Wheeler DETC with
respect to the current tender referred above since it is common wisdom that a common design will make IR
accommodate a wider participation of capable rolling stock manufacturers and its decision-making more
simple, transparent and fast, which shall ensure a cheaper and easier-to-maintain product, and avoiding the
time consuming binding requirements of oscillation trials, speed certification etc.
In a nutshell, the benefits to MoR will be as follows:
Substantial savings in procurement cost and time Substantial savings in cost of maintenance Ease of maintenance therefore savings by way of quicker uptime Wider participation of Indian rolling stock manufacturers Ensuring level playing field at the bidding stage Faster and transparent evaluation of bidding process
We thank you for your kind patronage as always and now look forward to your favorable response.