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Tender Value
₹1.4 Cr
EMD Value
₹2.7 L
Closing Date
4 Jun 2026, 2:00 pmClosed
Provision of Inverter to avoid signal blanking at interlocked LC Gates (OSL) over Sealdah division.
SDSTE-Sig-T-37-25-26-SF
SDSTE-Sig-T-37-25-26-SF
Open
12 Months
Unknown (Unspecified Location)
₹0
₹2.7 L
7 May 2026
7 May 2026
21 May 2026
18% HAS BEEN SHOWN IN ITEM BREAKUP SEPARATELY.
NON-SCHEDULE/SOR ITEM vide SL. NO. 1 to 32 GIVEN IN SCHEDULE OF WORK. GST @ 18% HAS
BEEN SHOWN IN ITEM BREAKUP SEPARATELY.
S No. Item Description of Item Unit Qty Rate Amount
1 1 "Supply of pure sine wave 500 VA Online Numbers 175.00 35927.12 6287246.00
Inverter input voltage: 24V DC, output
voltage: 110V AC as per RDSO Spec No. IRS:
S-82/92 (AMD.2) or latest. Note- (i)
Installation should be done through OEM's
representative. (ii) Supply of inverter should
be of PWM (Pulse width modulated) type, in
which the 'No load' input current is within 5%
of 'Full load' input current. Warranty: This
includes Five years warranty from the date of
receive in the store. Inspection: RITES."
SEALDAH DIVISION-S AND T/EASTERN RLY
2 2 "INSTALLATION, COMMISSIONING OF Numbers 175.00 4050.00 708750.00
I N V E R T E R WHICH CONSISTS OF
BATTERY,PROGRAMME SWITCH, INCLUDING
MOUNTING ON WOODEN PLANK AND
COMPLETE WIRING WITH 10 SQ MM AND 7/22
(AS PER SITE REQUIREMENT) SWG PVC
WIRES. THIS INCLUDES SUPPLY OF ALL NUTS,
BOLTS, SPRING WASHERS, PROGRAMME
SWITCH, WIRES ETC. WITH GOOD QUALITY
LUGS WITH SUITABLE CAPACITY AS PER SITE
REQUIREMENT. ALL WIRING TO BE DONE
THROUGH PVC CHANHNEL/ DUCT/PIPE OF
SUITABLE SIZE. PVC CHANHNEL/ DUCT/PIPE
TO BE SUPPLIED BY THE CONTRACTOR.
POWER WIRES SHOULD BE AS PER SPEC. NO.
IRS-S-76/89, Amd-2 OR LATEST. Inspection:
3 3 "Supply of full size apparatus case (Large) Numbers 80.00 11793.22 943457.60
(as per DRAWING NO. SW SK NO. 4/90 &
other applicable GKP SW Drawing). This
includes supply of location box (GKP type)
with 'E' type lock & key, fitted on location
door on both side, E Type lock (ward No. will
be specified by Engineer-in Charge) as per
RDSO Drg. No. SA 3376 and Key to Drg. No.
3377 as per RDSO drawing No. RDSO/S-
11500. Inspection : RITES "
4 4 "Supply of hard wood shelves thickness 25 Numbers 80.00 477.12 38169.60
mm for keeping equipment's and batteries in
the location box (FULL or HALF GKP /other
type) with suitable varnish and anti-termite
chemicals fitted on angles with nuts & bolts.
950 x 400 x 25 MM for full size location box .
Inspection: - Consignee "
5 5 "Casting, concreting and curing of concrete Numbers 80.00 2993.22 239457.60
foundation ((in ratio 1:3:6), erection and
installation of Full size Apparatus Case (GKP
type)/Stainless Steel (SS) Apparatus Case as
per DRG.NO. S&T/C-6/98(NKG) with 'E' type
lock on CC foundation. This includes cost of
all materials required for fixing holding down
bolts, casting, concreting. Note: - bolts, nuts
and washers, bitumen compound to be
supplied by contractor and bitumen
compound to be used in between apparatus
case and foundation as per site engineer.
This also includes bottom of apparatus cases
filled with sand and the outside covered with
masonry work and neat cement plastering.
Note: - i) Location boxes to painted with anti-
corrosive paints as per IS:- 9862-1981, one
and half feet from the bottom, on all
surfaces-both inside and outside. ii) Location
box will be supplied by Rly."
SEALDAH DIVISION-S AND T/EASTERN RLY
6 6 "Fixing by slotted angle, wiring of terminal Numbers 80.00 4093.22 327457.60
strips, hylam strip, relays, fuses with base,
fixing of hard wood shelves for Full size
Apparatus Case with termination & Earthing
of cables and wiring with lettering as
required including supply of slotted angles,
wires, ferrules for marking and miscellaneous
materials per location to be supplied by
contractor. (all materials except relay,
terminal strips, Bakelite strip, fuses with base
and hard wood shelves to be supplied by the
contractor). Wires to be used for this purpose
should be procured from RDSO'S approved
firm and to be inspected by RDSO. [Quantity
of wires to be specified by contractor]. NB-
power cable to be terminated with proper
lugs and required buss bar and other
terminals to be supplied by the contractor.
Inspection : Consignee"
7 7 "Supply of paper base hylam sheet 12 mm Sqm 5.00 4550.85 22754.25
thick. Inspection: consignee."
8 8 "Supply of PBT ARA terminal, 6 WAY, DRG. Numbers 100.00 411.02 41102.00
No. 23756, ALT-3. as per IRS Spec. No. IRS: S-
75-2006(REV-2) or Latest. Material to be
procured from RDSO's approved firm only.
Inspection: RDSO. "
9 9 "Supply of fuse block (PBT) to spec.no.IRS-S- Numbers 10.00 150.85 1508.50
75/2006(REV-2) OR LATEST,DRG.NO.SA-
23748 with fuse inserts cartridge, non-
deteriorating type to spec.IRS-S-78/92 with
latest amendment, to be mounted inside the
location box on hylum sheet. Fuse Base
Inspection: -RDSO."
10 10 "Supply of fuse block (PBT) to spec.no.IRS-S- Numbers 100.00 51.69 5169.00
75/2006(REV-2) OR LATEST,DRG.NO.SA-
23748 with fuse inserts cartridge, non-
deteriorating type to spec.IRS-S-78/92 with
latest amendment, to be mounted inside the
location box on hylum sheet. Fuse, non-
deteriorating(2A/6A/10A/16A) type,
cylindrical(IRS-S-78/92) Inspection: -RDSO."
11 11 "Supply of Earth electrode mild steel Numbers 80.00 1267.80 101424.00
galvanized, light class, IS:1239(PART-I)-
1979.earth electrode pipe should be with 3
mm thick, 50 mm dia and
perforated(staggered),5 mm dia holes, 2 nos
per 305 mm length. Earth pipe should
include CI threaded cap. Materials to be
procured and designed as per PCSTE/ER's
Drg No. SI/TYP/ 0097 dated 25.03.25 or latest
Inspection: Consignee"
12 12 "Supply of MS FLAT (SPEC. NO. 226 STD or Numbers 80.00 772.03 61762.40
latest) of size 35 mm x 6 mm. To supplied in
length of minimum 5 mtr or more as per
PCSTE/ER's Drg No. SI/TYP/ 0097 dated
25.03.25 or latest Inspection: Consignee."
SEALDAH DIVISION-S AND T/EASTERN RLY
13 13 Fixing of earth electrode including laying and Numbers 80.00 983.90 78712.00
installation of MS flat of size 35 mm x 6 mm
with length 5 mtr or as per extant practice of
Eastern Railway. As per PCSTE/ER'S DRG. NO.
SI/TYP/0097 dated 25.03.2025 or latest. for
apparatus cases, signal post & other
equipment as per instruction of site
engineer. Provision for fixing MS flat at
apparatus cases/ signal post/other
equipment should be made by the firm at
site. Where required necessary holes to be
drilled on the MS Flat . Full threaded bolts of
10 mm dia and length 40 mm should be
welded in the apparatus cases in such way
that the MS flat at apparatus case end can
be fixed from outside or from inside (bolts of
10 mm dia and length 40 mm should be
supplied by the contructor). Welding
arrangement with accessories and welding
materials should be arranged by the
contractor for fixing of bolts at equipment
end where required as per instruction of site
engineer. All hardware and other
miscellaneous materials required for
installation to be supplied by the contractor
except earth electrodes and MS flat. Sig.
Cable as provided by Railway is also to be
laid and terminated on Earth Electrode and
to GI Wire/GI Flat in Location Box.
14 14 "Supply of cement concrete enclosure for Numbers 80.00 483.90 38712.00
earth electrodes as per Drg No. S&T/C-
36(NKG) & PCSTE/ER's Drg No. SI/TYP/ 0097
dated 25.03.25 or latest. Inspection:
15 15 "Supply of battery charger input 110 V AC 50 Numbers 10.00 17321.19 173211.90
HZ single phase output 24VDC, output
current 15 Amps as per specification no. IRS-
86 2000 WITH AMD.4 (for signalling purpose).
Note: - charger to be supplied with one
active potential free contact to monitor
status of charger. Inspection : RDSO."
16 16 "Charging of lead acid cell (Secondary cell) of Numbers 120.00 311.02 37322.40
2V 80AH capacities as per
Manufacturer's/Railway engineer's
instruction. Acid and distilled water to be
supplied by the contractor. Specific gravity
acid should be approved type duly inspected
by consignee. This includes installation and
commissioning of battery in circuit. Battery
to be kept on wooden rack. Inspection:
17 17 "Charging of lead acid cell (Secondary cell) of Numbers 120.00 333.05 39966.00
2V 120AH capacities as per
Manufacturer's/Railway engineer's
instruction. Acid and distilled water to be
supplied by the contractor. Specific gravity
acid should be approved type duly inspected
by consignee. This includes installation and
commissioning of battery in circuit. Battery
to be kept on wooden rack. Inspection:
SEALDAH DIVISION-S AND T/EASTERN RLY
18 18 "Laying of S&T Cables of various cores/ pairs/ RMT 4922.00 4.24 20869.28
quads in trenches/ GI pipes/ RCC pipes/ DWC
pipes/ Trunking. This also includes laying of
cables in track crossings & road crossings.
Item includes provision of labels of coloured
plastic adhesive tapes or any other
identifiable material on each cable to give
the cable number at each Gantry
Post/hectometre post. (Cables will be
meggered before and after its laying by
contractor under supervision of Railway
Representative and he will submit the
meggering report of each testing). Length of
the cable laid includes the length of the cable
coiled for termination purposes. "
19 19 "Excavation of cable trench as per cable cum 4000.00 207.63 830520.00
route plan, 1.2 Mtr. deep and of 0.3 Mtr. to
0.6 Mtr. wide at bottom without brick as per
DRG. NO. S&T/C-40(NKG), SK/4/95/NKG,
SK/8/95/NKG. or latest alongside the track in
all kinds of soil, conforming to distances as
per cable route plan and refilling. This work
includes clearing of route from bushes etc.
The work shall be done as per the extant
practice on Eastern Railway and instructions
of Railway Engineer at site. Note:-(a) for all
trenches from distant signal to home signal
and to relay room, the minimum headway
above the uppermost cable in the trench
should be 600mm. If due to a large no. Of
cables headway is not available, 4"" of 1:2:4
concreting should be done. Note:-(b-1)
payment will be made as per actual work
done on pro-rata basis, if required depth is
not available at site. (b-2) if the depth of
trench is not uniform in a span of 100 mtr. or
shorter lengths if site condition demands
along the cable run, minimum depth will be
taken for that particular stretch for payment
(c ) All kinds of soils means including ballast
mixed soil of Railway Track."
20 20 Digging of trench 1.2 Mtrs. deep from rail cum 200.00 235.59 47118.00
flange/ road level and 0.3 Mtrs to 0.6 Mtrs
wide and back filling after placing of DWC/
RCC/GI pipe. (Placing of DWC/RCC/GI pipe
covered separately). The ballast disturbed be
screened and dressed as required by
Engineer-in-charge or his representatives
and road tarred immediately. For Track
c r o s s i n g , RDSO sketch No. SDO/CABLE
LAYING/009 or latest and for Road Crossing,
RDSO sketch No. SDO/CABLE LAYING/010 or
latest are to be followed.
21 21 "Repair of pucca roads to original state in Metre 100.00 216.95 21695.00
level crossing area after cable laying. Note :
All the materials required for this woprk to be
supplied by the Contractor except GI/ DWC
pipe, which is to be supplied by the Railway."
SEALDAH DIVISION-S AND T/EASTERN RLY
22 22 "Supply of Double Wall Corrugated (DWC)- Metre 150.00 336.44 50466.00
HDPE pipe/duct of size 200 mm outer dia, &
175 mm inner dia. It includes supply of
Double Wall Corrugated -HDPE pipe/duct as
per RDSO Specn.No. RDSO/SPN/ 204/2011
(version 1.1) or latest and conforming to ISI
Spec. No.IS:14930, Part-II. (The
manufacturers, suppliers must produce valid
IS license and should be certified under ISO
9000 and shall submit copy of certificate).
One of the following coupling arrangements
should also be supplied with each pipe as per
the site requirement.1) Suitable snap fit
coupler with rubber O-Ring 2) Spacers3)
Tees4) Bend,5) End-cap DWC pipe shall be
marked at every 1 mtr length in such a way
that manufacturer's name, vendor name and
year of manufacture can be easily identified.
Inspection: Consignee"
23 23 "Supply of Medium class GI pipes 100 mm Metre 100.00 645.76 64576.00
dia (4.5 mm thickness) as per IS 1239 (Part
1): 2004 for use in ASM room and at any
other location as decided by Site Engineer. It
includes supply of all material required for
fixing arrangement. At the ends of GI pipe,
flexible/ corrugated HDPE pipe will be
provided by contractor to protect cables from
sharp edges and sudden bends. Inspection:
24 24 Placing of DWC/HDPE/RCC/GI pipes along Metre 250.00 26.27 6567.50
with collars in trenches at places near track
and road, crossings, platform cuttings etc.
25 25 "Cement concrete work for miscellaneous cum 50.00 3047.46 152373.00
items in the ratio 1: 3: 6. Item includes
excavation, ramming, curing and plastering
with cement & sand mixture (aggregate not
exceeding 3.8 cm.) (Aggregate cement &
sand to be supplied by the contractor).
Wherever depth of 0.5 m cable trench is not
feasible, cable shall be protected as :-
Preparation of cement mixture 1:3:6 with
contractor's own materials and spreading
cement concrete mixture layer of 100 mm
thick over the already laid cables in the
excavated trench. Note : Cable to be covered
with RCC Slab of 1000mmX300-
600mmX100mm, where the depth of trench
26 26 "Supply of Digital Multimeter of Rishabh Numbers 4.00 19689.00 78756.00
6016 Advanced Multimeter or Similar/
superior, True RMS as per Technical Spec. -
TS-1. Inspection : Consignee . The
Functionality test of the Multimeter has to be
checked by consignee."
27 27 "Supply of Hand Held True RMS smart Numbers 2.00 25307.00 50614.00
leakage Clamp Meter of Rishav ALCT-60A or
Similar/ sipirior as per Technical Spec. -TS-2.
Inspection : Consignee. The Functionality test
of the Multimeter has to be checked by
28 28 "Supply of Handheld Digital Earth Clamp Numbers 2.00 80474.58 160949.16
Tester for clamp on earth/ground resistance
measurement up to 1000 ohms. Accuracy
current leakage up to 20A. No spines
required for measurement Model - DECT-2 or
equivalent / higher version make
Motwane/Stanlay/Fluke/Megger.Item to be
supplied after successful demonstration and
Approval of Railway. Inspection: Consignee"
SEALDAH DIVISION-S AND T/EASTERN RLY
29 29 Alteration/modification in the existing Numbers 51.00 2357.63 120239.13
location boxes (full size), fixing of
equipment's, cable insertion, termination,
wiring, testing & commissioning, two coat
painting, lettering to suit the circuits as per
approved wiring diagrams. This includes
filling with sand and plastering the same.
interconnecting earth electrodes. Inspection:
connecting Main earth pit to other earth pit
in case of loop earth. Note: i) 'No' in the unit
column indicates 'per pair of earth pit' ii) All
the locations where inverter will be installed,
should be checked for proper Equipotential
Earthing and compliance should be done."
32 32 "Termination of Outdoor Cables (Main Cables Per 2530.00 7.63 19303.90
/tail cables) at both ends in location boxes, Conductor
cable termination rack in relay room, station
building, generator room etc. The item
includes dressing of cables and wires with
dressing threads as per standard practice. All
material required for this item will be
supplied by contractor. The outdoor cable
shall be terminated in Relay Room, DG
Room, ASM Room etc under supervision and
instructions issued by Engr. incharge of the
work. Inspection: Consignee "
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nit.pdf
NIT
Annexure-TS-1.pdf
ATTACHMENT
Annexure-TS-2.pdf
ATTACHMENT
DrgforEarthElectrode.pdf
ATTACHMENT
GCCApril2022.pdf
ATTACHMENT
GCCCorrectionSlipNo1to11.pdf GCC Correction Slip No1 to 11
ATTACHMENT
Tender Document
ATTACHMENT
GCCCorrectionSlipNo1to11.pdf
ATTACHMENT
BID-DOC-SDSTE-SIG-T-37-25-26-SF_1.pdf
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