Work on service building structures vicinity equipment

Work on service building structures vicinity equipment

Metro Rail General Rules

Work on service building structures vicinity equipment

Work on service buildings and structures in the vicinity of live equipment –The Metro Railway employee required to carry out work on service buildings and structures in the proximity of Overhead Equipment shall exercise special care to ensure that tools, measuring tapes, and materials are not placed in a position from which they are likely to fall on or make contact with electrical equipment.

Sectioning and siding switches –(1) Sectioning and siding switches installed in the Traction system shall be operated only by such officials as are authorized to do so by the in-charge of the Traction system.

(2) No switch affecting the feed to the main running line or loop line shall be closed or opened without permission of the Traction Power Controller and the detailed procedures for opening and closing of sectioning and isolating switches shall be as per the Metro Railway Traction Manual.

(3) All operations of section or isolating switches, when completed, shall be reported to the Traction Power Controller in all cases.

Warning to staff and public – (1) All electrical equipment shall be regarded as being live at all times and consequently dangerous to human life, save and except in cases where the electrical equipment has been specially made dead, isolated and earthed as per instructions contained in the Metro Railway Traction Manual.

(2) caution notices, as specified in Schedule I appended to these rules, shall be prominently and permanently fixed near all vulnerable places to warn staff and public to exercise due caution.

(3) No person shall climb on the top of rolling stock, or go under the rolling stock in case of Third Rail DC Traction, when these vehicles are located beneath the Overhead Equipment or adjacent to the Third Rail except when the Overhead Equipment or Third Rail is made dead and earthed in accordance with Special Instructions and the person required to climb on the roofs of passenger cars or to go under the same, shall obtain a permit to work as per rule 78.

Alterations to Track – Before any alteration to alignment or level of electrified tracks is commenced, due notice shall be given to those responsible for the Overhead Equipment or the Third Rail, as the case may be, so that the Overhead Equipment or Third Rail may be adjusted using specified gauge to conform to the new conditions of track.

Additional rules for electrified Sections –Special Instructions, if any, for working of trains on electrified sections shall be issued .  

Rules applicable to Overhead AC Traction Equipment only – (1) Tripping of circuit breakers of Train in Neutral sections – (i) Unless otherwise allowed by special instructions, the Train Operator shall coast through the neutral section, duly switching off power and necessary indications boards as specified in Schedule II appended to these rules, wherever required, shall be provided to guide the Train Operator to switch off and switch on the power.

(ii) The Indication boards shall be provided at five hundred meters and two hundred and fifty meters in advance of the neutral section and additional boards shall be provided just short of and immediately after the neutral section to indicate to the Train Operator the points where he shall open and re-close the circuit breaker on the electrical multiple unit.

(2) Tower Wagon or Catenary inspection Car –(i) The movement or working of tower wagon or inspection car or any other vehicle with pantograph raised shall be as per the Special Instructions.

(ii) No tower wagon or inspection car shall be driven except by an authorised person and no person shall be so authorised, unless he has knowledge of the section on which tower wagon or inspection car is to operate in addition to being conversant with the operation of tower wagon or inspection car.

(3) Working of ladder trollies – (i) Ladder trollies shall be considered as work trains and their movement on the main line track shall be governed by rule 33.
(ii) The ladder trollies shall work during Engineer’s Possession only and their operation shall be supervised by a suitable traction distribution official as prescribed in Special Instructions.

Rules applicable to DC Traction Third Rail equipment only – Switching ‘OFF’ and ‘ON’ of Traction power. – (1) Traction power shall ordinarily remain ‘ON’ and shall be switched ‘OFF’ during traffic hours for a specified section by the Traction Power Controller or through the Authorised Employee immediately after informing the Traffic Controller in emergencies, like:-

(a) to stop serious arcing or fusing;
(b) to stop train in unusual circumstances; and
(c) when flood water overflows the drains. 

The Traction Power Controller shall issue emergency power block as per prescribed procedure, to the Authorised Employee. The Traffic Controller shall also inform all concerned that train movements on the affected section have been stopped.

(2) When the cause of ‘Switching OFF’ is over, the employee who has taken emergency power block will inform Traction Power Controller to that effect and cancel the emergency power block.

(3) Before switching ‘ON’ the current, the Traction Power Controller shall obtain the permission of Traffic Controller who shall confirm from the Engineering and Signaling officials that the track is safe and free from any obstructions before permitting energisation of third rail. Thereafter, traffic controller will resume the traffic.

Procedure for preventing admission of electric rolling stock into or over sections of track with dead or earthed overhead lines or third rail 

(1) In order to prevent electric rolling stock from being admitted into a track or a crossover for which overhead equipment or third rail equipment, as the case may be, is made dead or for which a permit to work is to be issued, suitable measures shall be enforced to block setting of such routes.

(2) The levers or slide or push buttons of signals and points governing movement of electric rolling stock shall be suitably protected and if the points and signals are locally operated they shall be clamped and padlocked in their normal position and the keys shall be kept with the Station Controller or Depot Controller as the case may be.

(3) These protective measures shall not be withdrawn until the Station Controller or the Depot Controller, as the case may be, receives a message from the Traffic Controller and acknowledges the same, and the Traffic Controller shall not issue a message unless he has received a message from the Traction Power Controller cancelling the power block.

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