Page 550 - IRSEM_Main Book

285 Catch Sidings: Normally all catch sidings except those, which are sanded, shall be kept
alive. On sanded catch siding, the rails shall be kept clear of sand for a length of 21.5 meters,
beyond the section insulators in the overhead lines and the switches controlling the sanded
catch sidings shall be kept in the neutral position. If an electric engine or single or multiple
unit train runs into the sanded length of a catch siding, it may possible be insulated from
earth except through the buffers or couplings if connected to other vehicles, therefore,
these sidings shall not be made alive when an electric engine or single or multiple unit train
or any vehicle coupled thereto are standing in the sanded track until all staff have been
moved away from positions where they are likely to make contact between the permanent
way formation and any part of the locomotive or single or multiple unit train or coupled
vehicles. No person shall attempt to enter, or leave or in any other way make contact
between the permanent way formation and the electric engine or single or multiple unit
train or any vehicles coupled thereto while one overhead equipment of the sanded length of
siding is alive.

286 Additional Precautions in AC Traction Area: The following additional precautions are
required to be taken in AC traction areas:-

1) Build-up of potential due to induction in metallic bodies situated close to O.H.E : - It is
important to note that dangerous voltage may be induced in metallic masses such as fencing
posts in the vicinity of traction conductors. To avoid possibility of shock due to such voltages,
the metallic structures are bonded together and earthed.

2) Unloading of Rails: When unloading rails along tracks, care shall be taken to ensure that rails do
not touch each other to form a continuous metallic mass of length greater than 300 meters.

3) Permanent way staff are advised to keep clear of the tracks and avoid contact with the
rails when an electrically hauled train is within 250 meters.

287 Fire in Electrified Areas: The Permanent Way Officials noticing a fire likely to result in
loss of life or cause damage to property shall take all possible steps to prevent it from
spreading and to extinguish it. In case the fire is on adjacent to any electrified equipment,
the permanent way official shall make no attempt to extinguish the fire but shall report the
occurrence of fire to the nearest Station Master by most expeditious means.

288 Permanent Way Tools: Permanent Way tools (insulated and un-insulated) along with
gloves shall be used in the manner as approved by the Chief Engineer of the Railway.

289 Treatment of Persons Suffering from Electric Shock: When persons receive electric
shock, practically in every case, they can be revived with the prompt application of First Aid.

Method of Resuscitation: The method of resuscitation resorted to should be that known as
artificial respiration.

Continuity of Treatment: The efforts to restore breathing must be continued regularly and
with perseverance, and must not be discontinued until a Doctor has taken charge of the
case.

290 Accident to Power Lines of Outside Bodies: The Engineering Inspector shall be in
possession of the name and address of the officer-in-charge of each power line across
Railway land to enable an immediate report of any defect or accident appertaining thereto
being made, under advise to the Assistant Engineer/Divisional Engineer.

Chapter 22: Requirements Of Signalling In 25 KV AC Electrified Area Page 493 of 535