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Download Tender Document Corrigendum - Western Railway ...

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Subject : Pre-bid clarification on queries received from Industry Participants of TPWS: Date-30.06.2011<br />

TENDER NO. WR/S&T/HQ/2010-11/05 Virar (at Km 60)-Vadodara (at Km 397) section<br />

Sr. No. Cl. No. Firm<br />

Thales<br />

T<br />

y<br />

p<br />

TTechnical specification of Train Protection and<br />

-Warning (TPWS) System<br />

W<br />

S<br />

E<br />

Original Text Clarification needed Clarification of <strong>Western</strong> <strong>Railway</strong><br />

- The traffic handled by each line: types of<br />

trains using that line, their car configuration<br />

(e.g. freight, long-distance Passenger,<br />

commuter EMUs/DMUs,…), each train<br />

length, weight, deceleration factor, and<br />

respective minimum, maximum speeds,<br />

minimum headway, number of trains per<br />

day, details on wheel diameter etc…<br />

It will be provided after award of<br />

contract.<br />

Thales<br />

TTechnical specification of Train Protection and<br />

Warning (TPWS) System<br />

E<br />

- Type of braking system (electrical or<br />

pneumatic) & their interfacing with TPWS<br />

system and braking distance in each section<br />

The Braking system for MEMU is<br />

"Electro-pneumatic & Auto brake<br />

system". The Braking System foe<br />

WAP-4 Locomtive is "Indian <strong>Railway</strong><br />

Air Brake (Tri-plate/CLW rake<br />

mounted)". Other details will be<br />

provided after award of contract.<br />

16 CHAPTER 6 :<br />

SCHEDULE<br />

OF WORKS &<br />

SUPPLIES -<br />

A1.1 b)<br />

Thales<br />

Thales<br />

TTechnical specification of Train Protection and<br />

-Warning (TPWS) System<br />

W<br />

E<br />

TEach MEMU will need two OBCs<br />

-<br />

W<br />

S<br />

E<br />

- Emergency braking & service braking<br />

details and their deceleration factor (Min.<br />

and Max.)<br />

When using two independent OBCs, there<br />

will also be the need for a additional BTM,<br />

additional wheel sensors and train<br />

interfaces. Please consider deviant quantity.<br />

It will be provided after award of<br />

contract.<br />

For each independent OBC one BTM<br />

plus antenna has been catered for<br />

for MEMU cab.<br />

17 CHAPTER 6 :<br />

SCHEDULE<br />

OF WORKS &<br />

SUPPLIES -<br />

B2.1<br />

Thales<br />

TProposed Quantities of various types of<br />

WEurobalise(s) (switchable, infill, repositioning) should<br />

Sbe submitted by tenderer as per Signalling plans.<br />

When will the tenderer receive the<br />

mentioned signalling plan Is the quantity of<br />

balises proposed or mandatory<br />

There is a difference between switchable<br />

and fixed balises which has also an effect on<br />

costs. Please specify the quantity of these<br />

two variants.<br />

Signalling Roll Plan is being made<br />

part of tender document. The<br />

quantities of balises are mandatory.<br />

The quantities of two type of balises<br />

have been mentioned in various<br />

itmes of the tender shedule.<br />

Pre Bid Queries for TPWS 6

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