C/2005/RVNL/St.Specifications
15th Feb.’06
ADDENDUM/CORRIGENDUM SLIP NO.1 DATED 15.02.06 TO
RVNL STANDARD SPECIFICATIONS FOR MATERIALS AND
WORKS”
S.No.
1.
Reference of
Clause No.
S&T Works
Vol.III
Page 4 of 61
Clause 3.3
Details of Corrigendum/Addendum to clause under
reference
Clause 3.3 is modified as under:“A list of technical specification and drawings have
been prepared and annexed as Annexure A-1 for
following the details of purchases of material,
equipments and execution of work. These technical
specifications and drawings can be purchased from
the sources mentioned in the Annexure A-1. List of
major construction/equipments drawings for signaling
other than RDSO drawings are given in Annexure A2”.
The copies of Annexures A-1 and A-2 are enclosed
with this Corrigendum.
2.
S&T Works
Vol.III
Page 8 of 61
Clause 4.8
Annexure „B‟ appearing in last sub para of Clause 4.8
is enclosed
3.
S&T Works
Vol.III
Page 16 of 61
Clause 9.8
S&T Works
Vol.III
Page 18 of 61
New Clause 10.12
The Drg.No. RVNL/S&T/SG-037/2005 to be read as
RVNL/S&T/SG-033/2005. Also in the same para
Drg.No.. RVNL/S&T/SG-035/2005 should be read as
RVNL/S&T/SG-032/2005
Add Clause No.10.12 after Clause No.10.11 as under:
10.12 : All signals are to be earthed as per RE
standard in RE area
S&T Works
Vol.III
Page 24 of 61
New Clause 15.18
Add Clause 15.18 after Clause No. 15.17 as follows:
4.
5.
15.18 : Audio Frequency Track Circuits)(AFTC)
15.18.1 : AFTC track circuits shall be provided as per
RDSO specification No.RDSO/SPN/146/2001 with
latest amendments.
15.18.2: Only coded AFTC track circuits shall be
provided.
Page 1 of 27
15.18.3: Frequencies and code selection shall be
made in a suitable manner so that they are not
repeated in the same yard.
15.18.4: AFTC track circuits shall be suitable for 25 KV
Railway Electrification.
15.18.5: These track circuits shall be operated with
230 Volts AC supply.
6.
7.
8.
S&T Works
Vol.III
Page 25 of 61
Clause 16.3
S&T Works
Vol.III
Page 26 of 61
Clause 17.1
S&T Works
Vol.III
Page 27 of 61
Clause 18.1
15.18.6: Separate 4/6 quad telecommunication cables
shall be used for transmitter and receiver frequencies
for the same track circuit.
At the end of last sentence of the para add words: in
RE area
The first sentence of the Clause is modified as under:
Cable termination racks as per drawing
RVNL/S&T/SG-056/2005 shall be erected in the relay
room at the required location as shown by the Railway
with suitable foundation bolts and cement concreted.
Clause 18.1 is replaced as under:
18.1 Relay rack frame to accommodate 1 way, relay
rack is to be fabricated as per RVNL Drg No. RVNL
/S&T /sg-055/2005. The frame is held rigidly by the
base assembly and electrically isolated by insulator.
vertical supporting angle of 65mm X 65mm X 8mm
and bottom and top frame angle of 45mm X 45mm X
6mm. Relay rack is to be fabricated out of 65mm X
65mm X 2200mm angles in vertical position spaced
530 mm apart by the flats one at the top and the other
at the bottom welded to the angle. The relay racks
are fitted to the angle frame by 20 X 75mm bolts with
washers and spring washers.
9.
S&T Works
Vol.III
Page 34 of 61
Clause 22.0
The heading “SSI system” is replaced with “EI
System” and in its sub paras whereas words SSI
appears is to be read as EI.
10.
S&T Works
Vol.III
Page 34 of 61
Clause 22.1
In second line of the Clause 22.1 the RDSO
specification No. RDSO/SPN/102/2004 to be read as
RDSO/SPN/192/2005.
Page 2 of 27
11.
S&T Works
Vol.III
Page 34 of 61
Clause 22.2 (b)
At the end of Clause 22.2(b), add
Manufacturer/Supplier/Contractor shall ensure that
after the end of 10th year, a minimum notice period of
3 years is given to Railways before discontinuing the
production of the model so that the Railway can
purchase life time spares.
12.
S&T Works
Vol.III
Page 35 of 61
Clause 22.2(d)
The word „quantity' appearing in Ist line to be
replaced with quality
13.
S&T Works
Vol.III
Page 35 of 61
Clause 22.4
Replace Clause 22.4 as under:22.4
WARRANTY:
22.4.1 The contractor shall warranty that all
materials & equipment to be supplied
and installed as per this tender shall
be free from defects and faults in
design, material, workmanship and
manufacture and shall be of the
highest grade and consistent with
established and generally accepted
standard for materials of the type
ordered and in full conformity with
the contract specification.
22.4.2 This warranty shall start from the
date of commissioning and shall
expire 1 year (12 months) after
commissioning. The contractor shall
be responsible for the proper
functioning of the system during the
period of warranty.
22.4.3 During the period of warranty, the
Contractor shall remain responsible
to arrange replacement and for
setting right at his own cost any
equipment supplied by him which is
of defective manufacture or defective
design
or
defective
material/
component or becomes unworkable
due to any cause whatsoever.
Page 3 of 27
22.4.4 If it becomes necessary for the
contractor to replace or renew any
defective portions of the system
under this clause, the provision of
this clause shall apply to the expiry
of six months from the date of such
replacement or renewal or until the
end of the
warranty period
whichever may be later.
If any
defect is not remedied within
reasonable time, the Railway may
proceed to do the work at
Contractor‟s risk and expenses, but
without prejudice
to any other
rights, which the Railway may have
against the Contractor in respect of
such defects.
22.4.5 Inspections, clauses for replacements
or renewals carried out by the
Contractor during the warranty
period shall be the same as provided
in the conditions of the contract for
the work.
22.4.6 All replacement and repairs and
design change that the Railway shall
call upon the contractor to deliver or
perform under this warranty shall be
delivered and performed by the
contractor
within
one
month,
promptly and satisfactorily.
22.4.7 The decision of the Railway in regard
to Contractor‟s liability under this
warranty
shall
be
final
and
conclusive.
22.4.8 Due to analysis of failures, if any
design deficiency is pointed out by
the Railway, the contractor shall
rectify it at his own cost.
14.
S&T Works
Vol.III
Page 35 of 61
New Clause 22.5
Add Clause 22.5 after Clause 22.4 as
under:
Page 4 of 27
22.5 ANNUAL MAINTENANCE CONTRACT (
22.5.1 Tenderer should quote separately for Annual
Maintenance Contract(AMC) charges for the
equipment per year for a period of 1 (one) year
which shall be considered for evaluation of the
Tender. The rate quoted for the AMC will be
binding for 3 (Three) years after the warranty
period. A separate agreement will be entered
into
for
the
AMC
between
Manufacturer/Supplier/Contractor and Southern
railway. Railway on its discretion may enter
into AMC for a lesser period or may not enter
into the AMC at all.
15.
S&T Works
Vol.III
Page 40 of 61
Clause 31.2
22.5.2 During the AMC period, Manufacturer/
Supplier/Contractor will be responsible for the
rectification of defective modules/ replacement
of defective module by a new one for
restoration of the system. Spare module if
available with railways may be utilized for the
restoration. In such a situation the
Manufacturer/ Supplier/Contractor shall be
liable to return the repaired/ new module to
railways within 72 hours of handing over the
defective modules at their premises. No
additional charges shall be payable for such
repair/replacement works.
Manufacturer/Supplier/ Contractor‟s trained
staff shall quarterly visit the installation to
monitor the proper functioning of the system
as well as preventive maintenance of the
system. During this period he shall provide
required guidance to the railway maintenance
staff as well as preventive maintenance of the
system. Manufacturer/Supplier/Contractor
should also give free services by way of
rectifying design defects in the
hardware/software including upgradation/modification to take care of the
deficiencies noticed while in service.
Replace Clause 31.2 as under:31.2 The work includes excavation of a pit at a given
location as per Drg. No. RVNL/S&T/SG033/2005 on natural soil, fixing earth pipe
covering the same with a mixture of 2 Kg. of
charcoal, 2 Kg. Of common salt and earth.
This includes brick masonry around the earth.
Page 5 of 27
GI pipe of size 50mm X 3 M with 12mm dia
holes on the sides at intervals of 300mm shall
be used as earthing electrode.
The
equipments to be earthed shall be connected
to the earth pipe through earthing bonds
(20mm flexible insulated hot dipped galvanized
multistrand with copper lugs precrimped on
both ends) by welding/ pin brazing method.
One end of the bond shall be connected to the
earth electrode and the other end to the
signaling
equipment
(Block
Instrument,
lightening arrestor, cable sheath, power
equipment, apparatus cases, relay racks etc. as
per specification IRS: S-103-2004 and
instructions of engineer. Earth resistance shall
be measured and painted on the earth piped
with date. The earth resistance shall not be
more than 10 ohms (for electronic equipment it
shall be as prescribed by the manufacturer /
manual whichever is less).
16.
S&T Works
Vol.III
Page 41 of 61
Clause 31.3
17.
S&T Works
Vol.III
Page 42 of 61
Clause 34.0
S&T Works
Vol.III
Page 61 of 61
New Clause 41.0
18.
Replace Clause 31.3 as under:
31.3 EARTHING OF EI
Earthing of EI equipment and room shall be
done as per Drg No.RVNL/S&T/SG -036/2005. Relay
room shielding shall be provided as per
Drg.no.RVNL/S&T/SG-038/2005 and electrode burial
arrangement shall be as per Drg.no. RVNL/S&T/SG037/2005 at EI station.
Heading of Clause to be changed as under:
“AXLE COUNTER FOR BLOCK PROVING “
Add New Clause 41.0 at the end after Clause 40.0
41.0 Automatic Permissive Block (APB) – Refer
Annexure C for Indian Railways General
Rules
41.1. Single Line sections working on Automatic
Block Working after establishing direction of
movement are known as Automatic Permissive
Block (APB)
41.2. The block section shall be split into two or more
sub sections so that more than one train can
follow in the same direction.
Page 6 of 27
41.3. The block section shall be fully track circuited
or each sub section is provided with Axle
counters to detect the passage of train for each
signal.
41.4. Inter signal distances between the two signals
in the same direction shall generally be one
Km., where as main berthing track shall not be
less than 690 meters (Distance to hold a full
length freight train).
41.5. Four aspect signals shall be used. The aspect
control shall be ‘RED-YELLOW-DOUBLE
YELLOW-GREEN’. A distance of two Kms shall
be ensured between Double Yellow’ signal
aspect to ‘RED’ signal aspect to provide full
braking distance. In case this distance is less,
then the previous signal instead of showing
‘Green’ aspect shall also show ‘Double Yellow’
aspect.
41.6. System of Working:
1) When there is no train in the Block section
between the two stations, the controlling
Panels of the Station Masters on either side
shall show ‘SECTION CLOSED’. All the
signals in this condition in the block section
shall show ‘RED’ aspect.
2) When any Station Master proposes to send
a train, he shall seek line clear from the
other Station Master and if agreed, both of
them will simultaneously operate their
panels as specified for obtaining Line Clear.
The sending station shall get Line Clear
Indication on his Control panel as ‘Train
Going TO’ and the receiving Station Master
shall get the indication on his Panel as
‘Train Coming From’.
3) Before the Line Clear Indication is displayed
on the controlling panels, the system shall
automatically check that all the track
circuits in the block section are picked up
and there is no train in the block section.
4) If conditions of line clear are met with then
all the signals in the section in the direction
so established shall display ‘Green” aspect
subject to the condition that respective LC
gates in the specific signal’ jurisdiction is
Page 7 of 27
closed. The opposing signals in the block
section shall show ‘RED’ aspect. When a
train enters block sections, the TOL
indication shall appear on the panels
automatically.
5) Trains can follow one after the other in the
same direction and all the signals shall
work as fully automatic with the passage
of trains.
6) When it is desired to reverse the direction of
movement, the either end Station
Masters after confirming that Block
section is clear of all trains, they shall
jointly operate their control panel and
close the Block section. The system shall
check that before closing of the Block
section all the controlling track circuits in
the Block section are clear of all trains
and at station receiving the trains
concerned reception and dispatch signals
are at on. Once the Block section is
closed, the direction of traffic can be
established as per requirement by the
Station Masters as explained above.
7) In case the section does not clear due to
failure of track circuit or any other system
failure, the block section shall work on
‘Absolute Block’ principles by following
laid down rules till the normal system is
restored.
41.7. Working of Level Crossing Gates in APB
Section:
1) All level crossing gates in the APB section
shall be manned and fully interlocked with
the signals.
2) The Gate signals shall display ‘RED’ aspect
if the LC gate is open. The road signals for
the level crossing gate show ‘Clear’ for
passage of road traffic.
3) The controlling Signals for LC Gate shall be
provided with Lit ‘AG’ marker. If the Gate is
opened, this ‘AG’ marker shall not be lit and
the train has to cross the same following
normal rules of passing a Gate signal at
‘ON’. Incase the gate is closed the ‘AG’
marker shall be lit and the train shall pass
Page 8 of 27
the signal in accordance with rules for
passing automatic signal.
4) All gates shall be provided with audio visual
‘Approach Warning’ from a predetermined
location. This location shall not be less than
four Kms. This distance shall be sufficient to
enable Gate keeper to close the LC gate
and clear the signals for the approaching
train so that the Approaching train gets
‘Clear’ signal from the LC gate and does not
slow down. In case the LC gate is located
less than 4 Kms. from the station, the prewarning for LC gate shall be given when the
Last stop signal of the station has been
taken ‘OFF’.
5) The moment Approach warning is received
at the LC gate, it shall also give audio visual
warning for the road user also so that road
traffic stops.
Page 9 of 27
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
Annexure A-1
SPECIFICATIONS OF SIGNALLING ITEMS
Electronic Interlocking System (EI) as per RDSO specification
RDSO/SPN/192/2005.
Integrated Power Supply (IPS) System as per RDSO Specification
No. RDSO/SPN/165/2000 with latest amendments.
Electric Point Machine working on 110V DC, heavy duty nontrailable rotary locking type complete as per IRS-S-24/2002 & Drg.
No.S-10910 with clamp lock arrangement as per RDSO drawing no.
S-11000
Data Logger as per Specification No. IRS S-99/2001.
Operation/Indication panel as per Specification No. IRS S-36/87 or
latest.
LED Signal Unit as per Specification No.RDSO/SPN/153/2002 with
latest amendments.
Single Section Digital Axle Counter as per RDSO Specification
No.RDSO/SPN/177/2003 ver.1 with latest amendment
Un-screened PVC insulated Armoured signalling cable Copper conductor
solid/ stranded as per specification No.IRS-S-63/89 with latest
amendments. The core of the cable shall be identified as per Para
3.2.5/3.2.6 of the specification.
Jelly filled cables as per specification IRS-TC-41-97 with latest amendment.
Four quad/Six quad having 0.5 mm dia. or 0.9 mm dia. conductors
underground cable for Axle counter/AFTC for use in Railway Electrified
areas as per IRS TC-30/97 or (Latest).
Indoor cables, copper conductor, PVC insulated and sheathed as per IRS:
S76/89 with latest amendments.
Single core, solid/stranded Copper conductor, PVC insulated coloured as
per IRS: S76/89 with latest amendments.
Apparatus case steel single as per drawing No. RVNL/S & T/SG-011/2005
with alteration ‘A’ and 221/82 with alteration ‘B’ (E type lock on both
sides).
Apparatus case steel half as per drawing No. RVNL/S & T/SG-011/2005
with alteration ‘A’ and 221/82 with alteration ‘B’ (E type lock on both
sides).
Junction box steel as per sketch No.RE/S&T/ALD/SK/227/82 corrected up to
30.6.86 and 228/82 corrected up to 18.1.93. The key and handle should be @
one each per 2 junction boxes.
Track lead Jn. Box as per IRS(s) Drg. No.SA-20101/M made of FRP
material (FRP material conforming to RDSO SPN 151/97 or latest)
complete with 450 mm long 25 mm dia. pipe.
Signal colour light Multi Unit type 4 aspect without side light, signal
transformers, lamps and lenses as per RDSO Drg. No.SA-23001 A/M(Adv.)
specification IRS:S-26/64 or latest.
Signal Colour light multi unit type 3 aspects without side light lenses, lamps and
signal transformers as per RDSO Drg. No.SA-23002 A/M (Adv.) latest
specification IRS: S-26/64 or latest.
Signal colour light multi unit type 2 Aspect without side light lenses,
lamps and signal transformer as per RDSO Drg. No.SA-23003 A/M (Adv.)
Page 10 of 27
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
latest. The mounting socket should be provided for 140 mm dia. to RDSO
Drg. No.S-23005 M (Adv.) Latest. Specification IRS: S-26/64 or latest.
Calling on signal unit as per specification no. IRS : S-23/88 or latest.
Foundation for main CLS Signal as per drawing no. RVNL/S&T/SG001/2005
Foundation for shunt signal as per drawing no. RVNL/S&T/SG-002/2005
Foundation for SLB/BSLB/SB as per drawing no. RVNL/S&T/SG-008/2005
A/P/G/C Markers as per drawing no. RVNL/S&T/SG-050/2005
Colour Light signalling tubular post as per IRS Spec. No.IRS-S-6-81 or
latest, 3.6 metres long.
Colour Light signalling tubular post as per IRS spec.No.IRS/S-6-81 or
latest, 4.6 metres long.
Colour Light signalling tubular post as per IRS spec. No.IRS/S-6-81 or latest,
5.6 metres long.
Route Indicator directional type 5 units Arm 1 way as per Drg. No.SA23401 (Adv) latest & spec. IRS:S-66 (latest) complete with fittings but
without lamps, lenses and signal transformer along with mounting
sockets 140mm dia. to RDSO Drg. No.S-23005/M (Adv.) Latest.
Route Indicator Directional type 5 Unit Arm 2 way as per Drg. No.SA23402 (Adv.) latest & spec. IRS:S-66(latest) complete with fittings but
without lamps, lenses and signal transformer along with mounting
sockets 140mm dia. to RDSO Drg. No.S-23005/M (Adv.) Latest.
Route Indicator Directional type 5 Unit Arm 3 way as per Drg. No.SA23403 (Adv) latest & spec. IRS:S-66 (latest) complete with fittings but
without lamps, lenses and signal transformer along with mounting
sockets 140mm dia. to RDSO Drg. No.S-23005/M(Adv.) Latest.
Signal lamps – Holder unit as per Drg. No.S-23030/M & SA-24831.
Ladder for colour light signal multi unit type 5.5 metres as per RDSO Drg.
No.SA-23156 (Adv.) with latest alteration.
Ladder for colour light signal multi unit type 4.5 metres as per RDSO Drg.
No.SA-23153 (Adv.) with latest amendments.
Ladder for colour light signal multi unit type 3.5 metres as per RDSO Drg.
No.SA-23150 (Adv.) with latest amendments.
Signal Base for 140 mm dia. post as per IRS(s) Drg. No.S-2011/M with
latest amendments.
Signal Bracket colour position light for 140 mm outside dia. post as per
RDSO Drg. No.SA-23080 (Adv.) latest.
OFF set Bracket Suitable for colour light signal, 140 mm outside dia. post.
‘P’ Marker (Non-illuminated) as per Drg. No. RE/S&T/Sig/Tender/SK/ 36/ 85
dated 20.04.85.
Signal Cable Marker as per Drg. No. RVNL/S & T /SG-022/2005
Block Section/Shunting Limit Board as per RDSO Drg.No.SA-2373 (Adv.)
latest.
Cable Trough (GI) for girder Bridges as per Drg. No. RE/ S&T /SIG/ Tender/
SK/22/85 dt. 20.04.85.
Earth electrode as per Drg. No. RVNL/S & T /SG-032/2005
Casting of foundation for electrode as per Drg. No. RVNL/S & T /SG033/2005
Earthing of EI equipment as per Drg. No. RVNL/S & T /SG-036/2005
Electrode burial as per Drg. No. RVNL/S & T /SG-037/2005
Page 11 of 27
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
Earthing of Relay Room shielding as per Drg. No. RVNL/S & T /SG038/2005
RCC pipe 150 mm dia. 2 metre long with collars to IS specn. No.458/1971 or
latest.
Signal shunt position light 2 position as per RDSO Drg. No. SA-23840
(Adv.) with latest amendments.
Repeater Luminous Signal green as per IRS Drg. No. SA-23271 C/M with
latest amendments.
Repeater Luminous Signal Red as per IRS Drg. No SA-23271 A/M with latest
amendments.
Repeater Luminous Signal Yellow as per IRS Drg. No SA-23271 B/M with
latest amendments.
Indicator Luminous Stencil type ‘F’ as per IRS Drg. No. SA-23296/M with latest
amendments.
Indicator Luminous Stencil type ‘L’ as per IRS Drg. No. SA-23295/M with latest
amendments.
Indicator Luminous Stencil type ‘N’ as per IRS Drg. No. SA-23291/M with latest
amendments.
Indicator Luminous Stencil type ‘OFF’ as per IRS Drg. No. SA-23293/M with
latest amendments.
Indicator Luminous Stencil type ‘ON’ as per IRS Drg. No. SA-23294/M with
latest amendments.
Indicator Luminous Stencil type ‘R’ as per IRS Drg. No. SA-23292/M with latest
amendments.
Indicator Luminous Stencil type case complete as per IRS Drg. No. SA23297/M with latest amendments.
Circuit Controller 2 Way (modified design) lever as per RDSO Drg. No. SA20245 Advance with latest amendments.
Circuit Controller 4 Way (modified design) lever as per RDSO Drg. No. SA20266 Advance with latest amendments.
Circuit Controller 6 Way (modified design) lever as per RDSO Drg. No. SA20276 Advance with latest amendments.
Circuit Controller 8 Way (modified design) lever as per RDSO Drg. No. SA20286 Advance with latest amendments.
Double wire circuit controller (Rotary type) 4-way as per Drg.No. SA-22420
Advance with latest amendments.
Double wire circuit controller (Rotary type) 6-way as per Drg.No. SA-22430
Advance with latest amendments.
Double wire circuit controller (Rotary type) 8-way as per Drg.No. SA-22440
Advance with latest amendments.
Electric signal reverser as per IRS: S -19 (latest).
Electric lever lock and circuit controller combined 200 mm stroke as per Drg.
No. SA-22701 (Advance with latest amendments.
Key transmitter - Electric as per IRS – S-21 (latest).
Earth Leakage detector single channel/multi channel suitable to work on
110 voltage 50 Hz single phase AC as per RDSO Specification No.
RDSO/SPN/256/2002 or latest complete with electro- magnetic counter.
Terminal Block (M6- Terminals) as per IRS Specification NO. IRS-S-7591(latest) and IRS Drg. No. SA-23741/Alteration 6 or latest .
Page 12 of 27
71.
72.
73.
74.
75.
76.
77.
78.
79.
80.
81.
82.
83.
84.
85.
86.
87.
88.
89.
90.
91.
92.
93.
94.
95.
96.
97.
98.
99.
Fuse Link cartridge cylindrical head/ knife edge (2A, 4A and so on) nondeteriorating type, non-indication type as per IRS Specification No. IRS-S78-92 or latest.
Indication type of low voltage (0.4A, 0.6A and 1.6 Amp.) Non-deteriorating fuse
links for signalling circuit as per latest RDSO specification.
Fuse Block as per IRS: S-78/92 or latest and Drg. NO. SA-23748 with latest
alterations.
Tag Block with cover as per specification no. IRS : S-77/91-200 way and IRS :
S-77/99-160 way.
SM’s control- Electric as per RDSO specn. IRS: S-48 latest.
Block instrument single line Neal’s Ball Token type ‘A’ as per RDSO Drg.
No. SA-20701(Advance) with latest amendments.
Block instrument double line as per RDSO specn. No. IRS-S-22(latest) similar
to SGE token-less block instrument.
Single line token-less block instrument to suit RE similar to Daido as per
RDSO/SPN/119/91 or latest.
Block filter unit as per IRS: S-68/89 (latest).
Block bell equipment as per Specification IRS (TC) 44/88
Signal colour light transformer as per IRS specification NO. IRS:S-59 & S-23
and RDSO Drg. No. SA-2301A/M or latest.
Axle counter – Universal type IRS-S-42/85 & Drg. No. S- 15602-04(latest).
SM’s block panel as per RDSO Drg. NO. S-32001.
Multiplexer for Axle counter complete with Transmitter /receiver combiner
converter as per RDSO Drg. No. S-32001.
Transformer-230 V AC/110 V AC as per IRS Specification No. IRS-S-72/88
(Latest).
Indication transformer as per IRS Specification No. IRS-S-83/92 (Latest).
Current transformer for lamp proving (H,I,L Type) as per IRS specification No.
IRS-S-62/92(Latest).
Lock key ‘E’ type as per IRS Drg. No. SA-3376/M with latest amendments.
Interlocking Frame Ground type single lever as per RDSO Drg. No. SA-922
(Advance) with latest amendments.
Point rodding (Solid) as per IRS Drg. No. S-3635 A with latest amendments.
Roller Trestle 2 way as per RDSO Drg. No. S- 3534/M (Adv.) with latest
amendments.
Roller Trestle 4 way as per RDSO Drg. No. S- 3535/M (Adv.) with latest
amendments.
Roller standard as per RDSO Drg. No. S- 3538/M (Adv.) with latest
amendments.
Bottom roller as per RDSO Drg. No. S-3332 and RDSO/SPN/135/93 with latest
amendments.
Top roller as per RDSO Drg. No. S-3331 and RDSO/SPN/135/93 with latest
amendments.
Top roller pin as per RDSO Drg. No. S-3540/M (Adv.) with latest amendments.
Horizontal Crank 300 mm X 300 mm as per RDSO Drg. No. SA-3414/M (Adv.)
with latest amendments.
Horizontal Crank 100 mm X 400 mm as per RDSO Drg. No. SA-3415/M (Adv.)
with latest amendments.
Vertical Crank as per RDSO Drg. No. SA-3412/M (Adv.) with latest
amendments.
Page 13 of 27
100.
101.
102.
103.
104.
105.
106.
107.
108.
109.
110.
111.
112.
113.
114.
115.
116.
117.
118.
119.
120.
121.
122.
123.
124.
Adjustable Crank as per RDSO Drg. No. SA-3416/M (Adv.) with latest
amendments.
Adjustable straight Crank as per RDSO Drg. No. SA-3417/M (Adv.) with latest
amendments.
Compensator 2533 mm X 406 mm as per RDSO Drg. No. SA-3504/M (Adv.)
with latest amendments.
Accommodating Crank ‘Low’ 103 mm centre as per RDSO Drg. No. SA-5852/M
(Adv.) with latest amendments.
Accommodating Crank ‘Medium’ 103 mm centre as per RDSO Drg. No. SA5853/M (Adv.) with latest amendments.
Accommodating Crank ‘High’ 103 mm centre as per RDSO Drg. No. SA5854/M (Adv.) with latest amendments.
Accommodating Crank ‘Low’ 125 mm centre as per RDSO Drg. No. SA-5856/M
(Adv.) with latest amendments.
Accommodating Crank ‘Medium’ 125 mm centre as per RDSO Drg. No. SA5857/M (Adv.) with latest amendments.
Accommodating Crank ‘High’ 125 mm centre as per RDSO Drg. No. SA5858/M (Adv.) with latest amendments.
Foundation type ‘A’ as per IRS Drg. No. S-3529/M (Adv.) with latest
amendments.
Foundation type ‘B’ as per IRS Drg. No. S-3536/M (Adv.) with latest
amendments.
Foundation type ‘B’ as per IRS Drg. No. S-3533/M (Adv.) with latest
amendments.
Shoe 1 or 2 way as per RDSO Drg. NO. S-5814/M (Adv.) with latest
amendments.
Shoe joint (Butt end) as per RDSO Drg. NO. S-5817/M (Adv.) with latest
amendments.
Flange connecting rod (Butt end) as per RDSO Drg. NO. S-3600/M (Adv.) with
latest amendments.
Angle Slide 1 or 2 way as per RDSO Drg. NO. S-5818/M (Adv.) with latest
amendments.
Switch Extension piece (BG) LH as per RDSO Drg. NO. S-6063/M (Adv.) with
latest amendments.
Switch Extension piece (BG) RH as per RDSO Drg. NO. S-6062/M (Adv.) with
latest amendments.
Lug Eye (Butt end) as per RDSO Drg. NO. S-3631/M (Adv.) with latest
amendments.
Flush joint 32 mm (Butt end) as per RDSO Drg. NO. SA-6051/M (Adv.) with
latest amendments.
Solid joint 32 mm (Butt end as per RDSO Drg. No. SA-6050/M (Adv.) with
latest amendments.
Solid joint 20 mm (Butt end as per RDSO Drg. No. SA-2160/M (Adv.) with
latest amendments.
Joint Screw 20 mm (Butt end as per RDSO Drg. No. SA-2162 /M (Adv.) with
latest amendments.
Radial guide standard as per RDSO Drg. No. SA-3831 /M (Adv.) with latest
amendments.
Radial guide extension bracket as per RDSO Drg. No. SA-3832 /M (Adv.) with
latest amendments.
Page 14 of 27
125.
126.
127.
128.
129.
130.
131.
132.
133.
134.
135.
136.
137.
138.
139.
140.
141.
142.
143.
144.
145.
146.
147.
148.
149.
Radial guide lock driving rod 33 mm as per RDSO Drg. No. SA-3833 /M (Adv.)
with latest amendments.
Radial guide connection rod 33 mm as per RDSO Drg. No. SA-3834 /M (Adv.)
with latest amendments.
3 Section lock bar inclined as per as per RDSO Drg. No. SA-3275 /M (Adv.)
with latest amendments.
Lock bar driving attachment as per RDSO Drg. No. SA-3243 /M (Adv.) with
latest amendments.
Clip Lock Bar inside 60 Kg. UIC Rail Clamp Type as per RDSO Drg. No. SA8675 (Adv.) with latest amendments.
Clip Lock Bar inside 52 Kg. Rail Clamp Type as per RDSO Drg. No. SA-3560/1
(Adv.) with latest amendments.
Clip Lock Bar inside 90R Rail Clamp Type as per RDSO Drg. No. SA-3561
(Adv.) with latest amendments.
Lock bar stop 60 Kg. UIC Rail Clamp type as per RDSO Drg. No. SA-8678
(Adv.) with latest amendments.
Lock bar stop 52 Kg. Rail Clamp type as per RDSO Drg. No. SA-3591 (Adv.)
with latest amendments.
Lock bar stop 90 R Rail Clamp type as per RDSO Drg. No. SA-3502 (Adv.) with
latest amendments.
Roller Path 52 Kg. Rail Clamp type as per RDSO Drg. No. SA-3578 (Adv.) with
latest amendments.
Roller Path 90R Rail Clamp type as per RDSO Drg. No. SA-3579 (Adv.) with
latest amendments.
Lock facing point as per RDSO Drg. No. SA-5984 (Adv.) with latest
amendments.
Lock facing point split stretcher bar (BG) as per RDSO Drg. No. SA-5988
(Adv.) with latest amendments.
Lock facing point (H. P. Type) with key locks base as per RDSO Drg. No. S3152/M (Adv.) with latest amendments.
Lock facing point (H. P. Type) split stretcher bar (BG) 52 Kg. Rail as per RDSO
Drg. No. S-3162 B/M (Adv.) with latest amendments.
Lock facing point (H. P. Type) split stretcher bar 90R Rail as per RDSO Drg.
No. S-3163 / M (Adv.) with latest amendments.
Screw joint adjusting (Butt end) as per RDSO Drg. No. S-3628 / M (Adv.) with
latest amendments.
Indicator point on trestle with short lamp base as per RDSO Drg. No. S5777/2 / M (Adv.) with latest amendments.
Indicator point on trestle with long lamp base as per RDSO Drg. No. S-5777/1 /
M (Adv.) with latest amendments.
Double HPK lock including ‘E’ type locks and keys as Drg. No. SA-3149/M Alt-1
Point rodding connections for Siemens Electric Point Machine as per RDSO
Drg. No. SA-8800-01 (Adv.) with latest amendments.
Point connection for IRS rotary point machine complete as per RDSO Drg. No.
RDSO/S/3361-62 with latest amendments.
Electric Point and Lock Detector with cross protection contacts as per RDSO
Drg. No. SA-23331 (Adv.) with latest detectors slide plug to RDSO Drg. No.
SA- 23386 (Adv.) latest RDSO specification IRS S: 49 with latest amendments.
Point rodding connection for ERICSON Electric Point Machine as per RDSO
Drg. No. RDSO/S 3191-92 Alt. 5 (Latest).
Page 15 of 27
150.
151.
152.
153.
154.
155.
156.
157.
158.
159.
160.
161.
162.
163.
164.
165.
166.
167.
168.
169.
Lens Optical, inside step without hot strip for long-range colour light signal, 213
mm dia., and 102 mm focal length ‘Clear’ as per IRS specn. No. IRS-S-7/92
and IRS-S-10 latest and RDSO Drg. NO. RDSO-S-23060(Adv.) latest.
Lens Optical, inside step without hot strip for long-range colour light signal, 213
mm dia., and 102 mm focal length ‘Clear’ as per IRS specn. No. IRS-S-7/92
with latest amendment and IRS-S-10 and RDSO Drg. NO.RDSO-S-23061/M
(latest).
Lenses clear inside stepped spread light 213 mm dia. x 102 mm focal length as
per IRS Specn. No. IRS-S-7/92 & IRS-S-10(latest) and RDSO Drg. NO. S23062 M (Adv.) latest.
Lens Optical, outside step for long-range colour light signal, 140 mm dia., and
13 mm focal length ‘Red’ as per IRS specn. No. IRS-S-7/92 with latest
amendment and IRS-S-10 and Drg. NO.RDSO-S-23063/M (Adv.) latest.
Lens Optical, outside step for long-range colour light signal, 140 mm dia., 13
mm focal length ‘Yellow’ as per IRS-S-10 and Drg. NO.RDSO-S-23064/M
(Adv.) latest.
Lens Optical, outside step for long - range, colour light signal, 140 mm dia., and
13 mm focal length ‘green’ as per specn. No. IRS-S-7/92 (latest) and IRS-S-10
and Drg. NO.RDSO-S-23065/M (Adv.) latest.
Lens Optical, outside step 92 mm dia., 16 mm focal length ‘Lunar White’ as per
IRS specn. No. IRS-S-7/92 (latest) and IRS-S-10 and Drg. NO.RDSO-S-23422
(Adv.) latest.
Lens Optical inside step with moulded prism for close-up indication 127 mm
dia. and 70 mm focal length ‘clear’ as per Specn. No. IRS-S-7/92(Latest) &
IRS-S-10 and Drg. NO. S-23421 (Adv.) latest.
Lens Optical inside stepped ‘clear’ 101 mm dia. as per Specn. No. IRS-S-7/92
(Latest) & IRS-S-10 and RDSO Drg. NO. S-2743 /M.
Lamp Electric for Rly. signalling ‘Clear’ 12 volts, 33 watts, 3 pin double filament,
double
pole SL-21 of specification NO. IRS-S-57/2002 with latest
amendments.
Lamp Electric for Rly. signalling ‘Clear’ 12 volts, 25 watts, 3 pin double filament,
double
pole SL-17 of specification NO. IRS-S-57/2002 with latest
amendments.
Lamp Electric or Rly. signalling ‘Clear’ 110 volts, 25 watts, 3 pin single filament,
double
pole SL-33 of specification NO. IRS-S-57/2002 with latest
amendments.
Lamp Electric triple pole for Rly. signalling ‘Clear’ 12 V, 24 watts, 3 pin double
filament, SL-35 or 35-A of specification NO. IRS-S-57/2002 with latest
amendments.
Lamp Electric for Rly. signalling ‘Clear’ 12 V/4 watt single filament SL-5 of
specification NO. IRS-S-57/2002 & IS. 1901 with latest amendments.
Lamp Electric for Rly. signalling ‘Clear’ 12 V/4 watt single filament SL-15 of
specification NO. IRS-S-57/2002 & IS. 1901 with latest amendments.
Lamp Electric 110 V 25 watt as per IRS-S-57/2002 with latest amendments.
Lamp Electric 12 V/1.2 watt as per IRS-S-57/2002 with latest amendments.
Lamp Electric 12 V/2.4 watt as per IRS-S-57/2002 with latest amendments.
Choke type ‘B’ having annealed enamelled copper wire, as per IRS-S65/83 latest.
Resistance adjustable 0 to 30 ohms as per Specification No.
RE/S&T/ALD/Store/Specn. /12-B dated 11.2.87 and sketch No.
Page 16 of 27
170.
171.
172.
173.
174.
175.
176.
177.
178.
179.
180.
181.
182.
183.
184.
185.
186.
187.
188.
189.
190.
191.
RE/S&T/ALD/SK/180/81 with Alt. ‘B’. To suit RDSO Drawing No. SA20166/M/Adv/Alt 1-S (S) - 23 or latest).
Surge discharger type ‘A’ non-restoring type as per IRS-S-52-76 with latest
amendments but without hard ware materials i.e. Bolts, Nuts, Washers etc. and
connection cables and Aluminium terminal lugs.
Track feed battery charger working on 110 Volts. AC to charge 1 or 2 or 3
or 4 lead acid cells as per IRS Specn. No. IRS-S- 89/93 or latest.
Installation of TLJB lead wire bond as per specification no. IRS : S –
103/2004
Fixing of TLJB as per drawing no. RVNL/S & T/SG-058/2005
Commissioning of TC as per Specification no. IRS: S-36/81
Excavation and refilling of trench as per drawing no. RVNL/S & T /SG024/2005
Laying and fixing of GI pipe as per drawing no. RVNL/S & T/SG-025/2005
Audio Frequency Track Circuit as per RDSO Specification No.
RDSO/SPN/146/2001 with latest amendments.
Half spilit DWC pipe of HDPE in 2 or 3 meter length produced out of full
round DWC pipe with ISI 4930 part-II mark on it.
Non spilit DWC pipe of HDPE with ISI 4930 part-II mark on it.
Battery charger- Dual Bank IRS: S-85/92 with latest amendments.
Secondary cell-low maintenance IRS: S-88/93 (latest).
Battery chargers as per IRS Specn. No. IRS-S-86/2000 with latest
amendments with auto charging facility.
Battery charger for maintenance free valve regulated batteries as per IRS –
93/96(B) with latest amendments.
Voltage stabilizer Ferro Resonant type as per Specn. No. IRS-S-74/89 with
latest amendments.
Inverter for Railway signalling installations for ‘On Line’ applications (with Sine
Wave Output) as per IRS Specn. No. IRS-S-82/92 (latest).
Solar photovoltaic module IRS:S-84/92 (latest).
Accumulator lead acid stationary with tubular positive plates to IS-1651 latest
2V each of __AH 10 hours rate of discharge, complete with inter-cell
connectors, Bolts & Nuts and acid level indicators (Floats) dry and uncharged.
The cells should be subjected to life test as per procedure laid down.
Secondary cells maintenance free as per IRS: S-93/96/A with latest
amendments.
Relay Group 3 Aspect Main Signal Plug in type with 100 terminal base
plate (complete with terminal connections and fixing screws) consisting
of 13 Nos. of DC neutral miniaturised Relays conforming to IRS Specn.
No. S-46(latest) and complete with suitable visual indication of similar to
Siemens relay group No. RS-SK-3525/46.
Relay Group 2 Aspect Main Signal Plug in type with 100 terminal base plate
(complete with terminal connections and fixing screws) and consisting of 10
Nos. of DC neutral miniaturised Relays conforming to IRS Specn. No. S-46
(latest) and complete with a suitable visual indications or similar to Siemens
relay group No. RS/SK/3525/67.
Relay Group shunt Signal Plug in type with 100 terminal base plate (complete
with terminal connections and fixing screws) and consisting of 13 Nos. of DC
neutral miniaturised Relays conforming to IRS Specn. No. S-46 (latest) and
complete with a suitable visual indications or similar to Siemens relay group
No. RE/SK/3525/67.
Page 17 of 27
192.
193.
194.
195.
196.
197.
198.
199.
200.
201.
202.
203.
204.
205.
206.
207.
208.
Relay Route Group Plug in type with 100 terminal base plate (complete
with terminal connections and fixing screws) and consisting of 5 Nos. of
DC neutral miniaturised Relays 3 Nos. of miniaturised interlocked relay
conforming to IRS Specn. S-46 (latest) and complete with a suitable
visual indications or similar to Siemens relay group No. RS/SK/31/0002.
Relay Group Point Operation (AC- immunised) Plug in type with 100 terminal
base plate (complete with terminal connections and fixing screws) and
consisting of 6 Nos. of DC neutral miniaturised Relays 2 Nos. miniaturised
interlocked relays, 1 No. DC neutral miniaturised slow to release relay with in
built 10 Sec. slow to release with heavy duty contacts to carry 110 Volts DC
conforming to IRS-Specn-S-46(latest) & one No. contactor units of 15Amps.
normal working current & complete with suitable visual indications to suit Point
Operation with 110 volts DC point machine and 60V detection super imposed
circuit or similar to Siemens DRS 11 Point Group RS/SK/31/0001.
Fail safe Electronics Time Delay Relay as per RDSO Specn. NO. IRS-S61 or with latest amendments to be operated on 60V DC/24V DC.
Thermo-Flasher Relay mercury type for operation on 12V DC similar to
SIEMENS type No. RSSK 30/0096.
Point contactor unit as per RDSO Specn. No. IRS: S-46, S-34, S-23 (latest).
Relays – ‘Q’ series neutral line as per Specification BRS : 930 A, BRS: 931
A, IRS : S-34, IRS : S-23.
QBCA 1 as per specification BRS 943
QTA2 as per specification BRS 939 A, IRS : S-34, IRS : S-23.
Relays (Metal to Metal) as per specification no. IRS : S-46
Relay Racks as per drawing no. RITES/SIG/GEN/011-98
Cable Termination Rack as per drawing no. RITES/SIG/GEN/012-98
Relays – 3 position DC polarised as per IRS: S-31/80 (latest).
Relays – neutral line M/M IRS: S-46.
Insulated rod joint 32mm Butt end as per RDSO’s Drg. No. SA-3637/M/(Adv.)
with latest amendments.
Insulation for Gauge Tie Plate (BG) complete with insulating bush and washer
each set comprising of
206.1. Insulating Plate for Gauge Tie Plate BG as per RDSO Drg. No.T-10372
or latest – 1 Nos.
206.2. Insulating bushing for insulated stretcher-bar BG as per RDSO
Drg.No.T-10368 or latest–3 Nos.
206.3. Insulating washer for insulated stretcher-bar BG as per RDSO
Drg.No.T-10371 or latest–6 Nos.
Insulation for altering stretcher bars (BG) each set comprising of :
207.1. Insulating plate for altering insulated stretcher bars BG as per RDSO
Drg. No. T- 10384 or latest 2 Nos.
207.2. Insulating bushing for altering insulated stretcher bar BG as per RDSO
Drg. No. T-10535 or latest – 4 Nos.
Insulating for stretcher bars BG, each set comprising of :208.1. Insulating Side Plate for insulated stretcher bars BG as per RDSO Drg.
No. T-10367 or latest–2No.
208.2. Insulating bushing for insulated stretcher bar BG as per RDSO Drg. No.
T-10368 or latest – 4Nos.
208.3. Insulating washer for insulated stretcher bar BG as per RDSO Drg. NO.
T-10371 or latest – 8Nos.
Page 18 of 27
209.
210.
211.
212.
213.
214.
215.
216.
217.
218.
219.
220.
221.
222.
223.
224.
225.
226.
227.
228.
229.
230.
Insulated Rail Joint Nylon (Four Channel Type) 60 Kg. UIC complete as per
RDSO Drg. No. SA-22171(Adv.) latest RDSO Specn. IRS: S-40(latest).
Insulated Rail Joint Nylon (Four Channel Type) 52 Kg. complete as per RDSO
Drg. No. SA-22101(Adv.) latest RDSO Specn. IRS: S-40 (latest).
Insulated Rail Joint Nylon (Four Channel Type) 90 R complete as per RDSO
Drg. No. SA-22111(Adv.) latest without iron and steel parts. RDSO Specn. IRS:
S-40(latest).
Insulated Rail Joint Nylon (Four Channel Type) 75 hour complete as per RDSO
Drg. No. SA-22121. (Adv.) latest without iron & steel parts. Specn. IRS: S-40
(latest).
Insulated Rail Joint Nylon (Four Channel Type) 60 R complete as per RDSO
Drg. No.SA-22131. (Adv.) latest without iron and steel parts. Specification IRS:
S-40 (latest).
Insulated Rail Joint Nylon Fish-Plate (52Kg) as per RDSO Drg. No.S-22102.
(Adv.) with latest amendments.
Rail Joint Insulated backing plate (52Kg) as per RDSO Drg. No.S-28107. (Adv.)
with latest amendments.
Rail Joint Insulated backing plate ‘90R’ as per RDSO Drg. No.S-22117. (Adv.)
with latest amendments.
Rail Joint Insulated ferrule (52 Kg) as per RDSO Drg. No.S-22108. (Adv.) with
latest amendments.
Channel pin single Groove 7mm dia. (for 4 mm dia. Bond wire) as per RDSO
Drg. No.S-69/A. (Adv.) with latest amendments.
Bond wire clip (52 Kg + 90 R Rails) as per RDSO Drg. No.S-22167 (Adv.) with
latest amendments.
Wire GI Soft 4 mm (8 SWG) As per IS Specn. No.IS-280 with latest amendments.
Magneto Telephone Desk Type to RDSO Specification No.
RDSO/SPN/TC/79/2000 or latest.
Terminal strip 8 Way/10 Way as per IRS Specification No.IRS-S-79/92 with
latest amendments and RDSO Drawing No. SA-24811
Terminal Block 1-way PBT 25mm as per RDSO Drawing No. SA-23741/Alt 6 or
latest
Terminal Block 1-way PBT 60mm as per RDSO Drawing No. SA-23745/Alt 5
or latest
Wire Insulator as per IRS specification No.IRS-S-47-74 (latest).
Lifting barrier, 10 mtr length for LC gate as Drg. No. SA-7974/M(Adv) with
latest amendments.
Power operated lifting barrier as per specification No. IRS : S-41/70
Winch for LC gate as Drg. No. SA-8132/A(Adv) with latest amendments
Boom lock for LC gate as Drg. No. SA-8158/M(Adv) with latest amendments
Single line Axle Counter block proving system with multiplexer and block
interface as per RDSO Drg. Nos. –
230.1. 32010-2A, 32010-3A, 32010-4A, 32010-5 & 32010-6 for station with
axle counter.
230.2. 32010-2B, 32010-3B, 32010-4B & 32010-6 for station without axle
counter.
Page 19 of 27
The copy of specifications can be purchased from following
sources:
1.
2.
3.
4.
IRS specification
 Manager of Publications, Government of India Civil
Lines, New Delhi-110054.
 Government of India Book Depot 8-K.S.Roy Road,
Calcutta-700001.
RDSO Specifications & RDSO Drawings:
 RDSO, Manak Nagar, Lucknow.
DOT/TEC/ITD Specification:
 Khurshid Lal Bhawan, Janpath New Delhi-110001.
B.I.S. Specification:
 Directorate General, Indian Standards Institution, 9Bahadur Shah Zafar Marg, New Delhi.
 F-Block, Unity Building Narsimharaja Square, Bangalroe
560002.
 534- Sardar Vallabh Bhai Patel Road, Bombay.
 5- Chowringhee Approach, PO Principal Street,
Calcutta-700072.
 Ahimsa Building (1st Floor) CSCO, 82-83 Sector 27-C
Chandigarh 160017.
 5-8-56/57, L. N. Gupta Marg, Hyderabad-500001.
 117/418-B, Sarvodaya Nagar, Kanpur-208005.
 C.I.T. Campus Adayar Madras - 600020.
Page 20 of 27
Annexure A-2
LIST OF MAJOR CONSTRUCTION DRAWINGS FOR SIGNALLING
OTHER THAN RDSO
S. No.
Description
Drawing No.
1
Main Signal foundation
RVNL/S&T/SG-001/2005
2
Shunt signal foundation
RVNL/S&T/SG-002/2005
3
Foundations for Apparatus case full
RVNL/S&T/SG-003/2005
4
Foundations for Apparatus case half
RVNL/S&T/SG-004/2005
5
Foundation for BSLB, SLB, Sighting Board
RVNL/S&T/SG-008/2005
6
Cable Markers
RVNL/S&T/SG-022/2005
7
Excavation of trench in normal soil and
RVNL/S&T/SG-024/2005
track crossing
8
Laying of cable in GI pipe
RVNL/S&T/SG-025/2005
9
Earthing electrode
RVNL/S&T/SG-032/2005
10
Cement concrete enclosure for earthing
RVNL/S&T/SG-033/2005
electrode
11
Earthing of EI equipment and room
RVNL/S&T/SG-0036/2005
12
Electrode burial arrangement
RVNL/S&T/SG-0037/2005
13
Earthing - Relay room shielding
RVNL/S&T/SG-0038/2005
14
Relay racks
RVNL/S&T/SG-055/2005
15
Cable termination
RVNL/S&T/SG-056/2005
16
Supply of apparatus cases full
RVNL/S&T/SG-010/2005
17
Supply of apparatus cases half
RVNL/S&T/SG-011/2005
********************
Page 21 of 27
Annexure – B
JOINT PROCEDURE ORDER FOR UNDERTAKING DIGGING
WORK IN THE VICINITY OF UNDERGROUND SIGNALING,
ELECTRICAL AND TELECOMMUNICATION CABLES.
A.
A number of Engineering works in connection with gauge
conversion/doubling/third line are in progress on various railways,
which require extensive digging work near the running track, in close
vicinity of the working S&T cables carrying vital safety circuits as well
as electrical cables feeding the power supply to Cabins. ASM room,
RRI Cabin, Intermediate Block Huts (IBH) etc.
Similarly, S&T
organization under open line or construction units under CAO/C are
executing various signaling and telecommunication works requiring
digging of earth for laying of cables or casting of foundations for the
erection of signal posts etc. RailTel are also executing the work of
laying of quad cable and OFC on various Railways as a part of
sanctioned works for exclusive use of Railways for carrying voice and
data i.e. administrative and control communication, PRS, FOIS etc. or
shared by RailTel Corporation of India Ltd. On certain sections digging
is also required for laying of electrical cable and casting of foundation
for the erection of OHE masts by Electrical Deptt. Generally, these
works are executed by contractors employed by these organizations.
B.
However, while carrying out these works in the vicinity of working
signaling, telecommunication and electrical cables, at times, cable cuts
take place due to JCB machines working along the track or during the
digging work being done by Contractors carrying out the Civil
Engineering Works. Similarly, such cable cuts are also resulting due to
works undertaken by S&T or Electrical depts. Such Cable faults results
in the failure of vital signaling and telecommunication circuits.
C.
Henceforth, the following joint procedure shall be followed by
Engineering, Electrical and S&T (and RailTel organization, wherever
such works are being done by them). Officers of the respective
divisions and by the Construction Organization, while carrying out any
digging work near to existing signaling & telecommunication and
electrical cables, so that the instances of cable cut due to execution of
works can be controlled and minimized.
1. S&T Department (and RailTel, where they have laid the cables) &
Electrical Depts. shall provide a detailed cable route plan showing
exact location of cable at an interval of 200m or wherever there is
change in alignment so that the same is located easily by the
Engineering official/contractor. This cable route plans shall be made
available to the DSE/DEN or Dy.CE /C as the case may be by Sr.
DSTE/DSTE or Sr. DEE/DEE of the divisions or Dy.CSTE/C or
Page 22 of 27
Dy.CEE/C within a reasonable time in duplicate. DSE/DEN or
Dy.CE/C will send copies to their field unit i.e. AEN/SE/P.Way &
works.
2. Before taking up any digging activity on a particular work by any
agency, Sr. DSTE/DSTE or Sr.DEE /DEE of the section shall be
approached in writing by the concerned Engg. or S&T or Electrical
officer for permitting to undertake the work. After ensuring that the
concerned executing agencies, including the contractor have fully
understood the S&T and Electrical cable route plan shall permit the
work in writing.
3. After getting the permission from S&T or Electrical Deptt. as the
case may be, the relevant portion of the cable route plan shall be
attached to the letter through which permission is issued to the
contractor by concerned Engg. official for commencement or work
and ensuring that the contractors have fully understood the cable
route plan and precautions to be taken to prevent damage to the
underground cables. The contractor shall be asked to study the
cable plan and follow it meticulously to ensure that the safety of the
cable is not endangered. Such a provision, including any penalty
for default, should form part of agreement also. It is advisable that
a suitable post of SE (Sig) or SE (Tele) or SE (Elect.) shall be
created chargeable to the estimates of doubling / Gauge conversion,
who can help engg. agencies in the execution of the work.
However basic responsibility will be of the Department executing
the work and the Contractor.
4. The SE (P.Way) or SE (Works) shall pass on the information to the
concerned SE (Sig) SE (Tele) or SE (Elect.) about the works being
taken up by the contractors in their sections at least 3 days in
advance of the day of the work. In addition Engineering control
shall also be informed by SE (P.Way) or SE (Works), which in turn
shall pass on the information to the Test Room/Network Operation
Centre of RailTel/TPC/Electrical Control.
5. On receiving the above information, SE (Sig) or SE (Tele) or SE
(Elect.) shall visit the site on or before the date of taking up the work
and issue permission to the contractor to commence the work after
checking that adequate precautions have been taken to avoid the
damage to the cables. The permission shall be granted within 3
days of submission of such requests.
6. The name of the contractor, his contact telephone number, the
nature of the work shall be notified in the Engineering Control as
soon as the concerned Engg. official issued the letter authorizing
commencement of work to the contractor. Test Room be given a
copy and Test Room shall collect any further details from the
Engineering Control and shall pass it on to S&T/RailTel & Elect.
officials regularly.
Page 23 of 27
7. In case of works being taken up by the State Government, National
Highway Authority etc., the details of the permission given i.e. the
nature the work, kilometer etc. be given to the Engineering Control
including the contact person’s number so that the work can be done
in a planned manner. The permission letter shall indicate the
contact numbers of Test Room/Network Operations Centre of
RailTel/TPC/Elect. Control.
8. Where the nature of the work taken by the Engineering department
is such that the OFC or other S&T cables or Electrical cables is to
be shifted and relocated, notice of minimum one week shall be
given so that the Division/RailTel/Construction can plan the works
properly for shifting. Such shifting works shall, in addition, for
security and integrity of the cables, be supervised by S&T
supervisors/RailTel supervisors/Electrical Supervisors.
9. The concerned SE (P.Way) / SE (Works) / SE (Sig.) / SE (Tele) /
SE (Elect.) or RailTel supervisors, supervising the work of the
contractor shall ensure that the existing emergency sockets are not
damaged in view of their importance in providing communication
during accident / emergency.
10. In case of minor nature of works where shifting of cable is not
required in order to prevent damage to the cable, the Engineering
Contractor shall take out the S&T or optical fibre cable or Electrical
cable carefully from the trench and place it properly along side at a
safe location before starting the earthwork under the supervision of
SE (Sig) or SE (Tele) or SE (Electrical). The cable shall be reburied
soon after completion of excavation with proper care including
placement of the brick over the cable by the concerned S&T
supervisors or Electrical Supervisors. However, the work will be
charged to the concerned engineering works.
11. In all the sections where major project are to be taken up/going on
RailTel/S&T Deptt. shall deploy their official to take preventive /
corrective action at site of work.
12. No new OFC/Quad cable shall be laid close to existing track. It
shall be laid close to Railway boundary as per extant instructions i.e.
1.0m from the Railway boundary to the extent possible to avoid any
interference with future works (doubling etc.). It shall be ensured in
the new works of cable laying that the cable route is properly
identified with electronic or Concrete markers.
Henceforth,
wherever cable laying is planned and before undertaking the laying
work, the cable route plan of the same shall be got approved from
the concerned Sr. DEN or Dy. CE/Constn. to avoid possible
damages in future. Such approvals shall be granted within 7 days
of submission of the requests.
Page 24 of 27
13. The works of excavating the trench and laying of the cable should
proceed in quick succession, leaving a minimum time between the
two activities.
14. Any damage caused to OFC/Quad cable or Electrical cable during
execution of the work, necessary debit shall be raised on
Engineering Department who shall bear the cost of the corrective
action.
15. All types of bonds i.e. rail bond, cross bond and structure bond shall
be restored by the Contractor with a view to keep the rail voltage
low to ensure safety of personnel.
16. Above joint circular shall be applicable for construction as well as
open line organization of Engineering, S&T & Electrical.
17. The S&T cable and Electrical cable route plan should be got
approved from the concerned Sr. DSTE / DSTE & Sr. DEE / DEE
respectively, before undertaking the work and completion cable
route plan should be finalized Block section by Block section as
soon as the work is completed.
Sd/(R.S. Grover)
AM (Elect.)
Sd/(N.K. Goel)
Adv. (Sig)
Sd/(R.C. Sharma)
AM (Tele)
Sd/(R. Sundarajan)
AM (Works)”
Page 25 of 27
Annexure C
EXTRACT OF INDIAN RAILWAYS GENERAL RULES ON AUTOMATIC
PERMMISSIVE BLOCK WORKING
9.03 Essentials of the Automatic Block System on single line.(1) Where trains on a single line are worked on the Automatic Block
System.(a) the line shall be provided with continuous track
circuiting or axle counters,
(b) the direction of the traffic shall be established only
after Line Clear has been obtained from the block
station in advance.
(c) a train shall be started from one block station to
another only after the direction of traffic has been
established.
(d) it shall not be possible to obtain Line Clear unless
the line is clear, at the block station from which Line
Clear is obtained, not only upto the first Stop signal but
also for an adequate distance beyond it.
(e) the line between two adjacent block stations may,
where required, be divided into two or more automatic
block signalling sections by provision of Stop signals.
(f) after the direction of traffic has been established,
movement of trains into, through and out of each
automatic block signalling section shall be controlled by
the concerned Automatic Stop signal and the said
Automatic Stop signal shall not assume 'off' position
unless the line is clear upto the next Automatic Stop
signal : provided further that where the next Stop signal
is a Manual Stop signal, the line is clear for an adequate
distance beyond it, and
(g) Unless otherwise directed by approved special
instructions, the adequate distance referred to in clauses
(d) and (f) of sub-rule (1) shall not be less than 180
metres.
Page 26 of 27
9.04 Minimum equipment of fixed signals in Automatic Block territory on
single line. –
The minimum equipment of fixed signals to be provided for each direction
shall be as follows(a) Manual Stop signals at a station (i) a Home
(ii) a Starter
(b)An Automatic Stop signal in rear of the Home signal of
the station.
Note: Under approved special instructions, the Automatic Stop signal may be
dispensed with.
9.05. Additional fixed signals in Automatic Block territory on single line.(1) Besides the minimum equipment prescribed in Rule 9.04, one or
more additional Automatic Stop signals, as are considered necessary,
in between block stations, may be provided.
(2) In addition, such other fixed signals as may be necessary for the
safe working of trains may be provided.
9.06 Conditions for taking 'off' Manual Stop signals in Automatic Block
territory on single line.(1) Home signal - When a train is approaching a Home signal,
otherwise than at a terminal station, the signal shall not be taken 'off'
unless the line is clear not only upto the Starter but also for an adequate
distance beyond it.
(2) Last Stop signal - The last Stop signal shall not be taken 'off' for a
train unless the direction of traffic has been established and the line is
clear upto the next Automatic Stop signal, or when the next Stop signal
is a Manual Stop signal for an adequate distance beyond it.
(3) The adequate distance referred to in sub-rules (1) and (2) shall
never be less than 120 metres and 180 metres respectively unless
otherwise directed by approved special instructions. A sand hump of
approved design, or subject to the sanction of the Commissioner of
Railway Safety, a derailing switch shall be deemed to be an efficient
substitute for the adequate distance referred to in sub-rule (1).
S.K.Dhiman
General Manager/P-I
Page 27 of 27