Maintenance of Track in Electrified Areas.pptx

Maintenance of Track
in
Electrified Areas

GENERAL KNOWLEDGE OF
ENGINEERING STAFF
All electrical equipment, every power line or cable
shall be regarded as being ‘live’ at all times.
No work shall be commenced adjacent to any
electrical equipment except on authority issued in
writing by a competent official of the Electrical
Department to the effect that the equipment has
been made dead and earthed.

TRACTION BONDS
 In electrified areas the return current fully or
partially flows through the rail.
 To ensure a reliable electrical circuit continuity and
also to ensure proper earthing in case of leakage of
current.

TYPES OF TRACTION BONDS
1. Longitudinal Bond or Rail Bonds
• At each rail joint fish-plates, at junction fish-plates,
on points & crossing and at SEJ, continuity of return
current path is achieved by using mild steel straps
or G.I. wire ropes.
• Absence of such bonds may cause unsafe working
condition and in extreme cases may damage the rail
ends.

2. Cross Bonds
 Cross bonds are provided between two rails of a
track or two rails of adjacent tracks at regular
intervals to reduce resistance of the current to the
minimum.
 Cross bonds are also known as transverse bonds.
 The cross bonds are provided at Feeder Post, L.C
gates, station yards etc., and at a distance of 350m
in open route.
 Provided at Bridge between guard rail and running
rail.

3. Structure Bonds
 All steel structures such as foot-over bridges, cover
over platforms, sheds, Rail barricading, Steel Girder
bridges etc., in the vicinity of OHE lines are
connected to rails through similar structure bonds.
4. Z – bonds
These are provided in track circuited areas.
A special rail bond provided to bridge the traction
rails at an insulated rail joint in AC track circuted
sections is called ‘Z’ bond

Longitudinal bond Cross or
traverse
bond
Structure
Bond

Need for Precautions
 Proximity of a Live Conductor - The risk of direct
contact with live OHE is ever present while working
in electrified sections.
Build-up of potential due to return current in rails. -
The return current in the rails may cause a potential
at following locations
1. Between rail and the surrounding mass of earth.
2. Between two ends of a fractured rail.
3. Between the two rails at an insulated joint.
4. Between earth and any other metallic mass.

Proper Fixation of Bonds and other TRD
Installations on Track
 All bonds which are being provided should be fixed
at the centre of the Neutral Axis(66.50 & 76.25 mm)
of the rail in the presence of P.Way staff.
 Drilling of holes in the web of rail shall be done at
neutral axis of the rail And chamfering of holes
should be done. (PCE/SC Lr.No W.341/General/RW/
Vol. XXVIII dated 2.1.17)
 All bonds should be provided on the non-gauge
face of the running track.

Proper Fixation of Bonds and other TRD
Installations on Track
The bonds should not be above 25mm from the top of
the sleeper in any case.
The bonds should not cause any interference to the
moving vehicles.
The rail surface should be cleaned thoroughly to
remove rust, scale before any bond wire is provided.
After fixing a bond Dye Penetration Test (DPT)/
Magnetic Particle Test (MPT) should be done to ensure
no surface cracks and tightening of bolts for bonds
should be ensured on regular basis by TRD
Department.

Special Instructions to Staff working in
Traction Area
1. No work shall be done within a distance of 2M from
the live parts of the OHE without a 'permit-to-
work'. (PTW)
2. For work adjacent to overhead equipment, the
JE/SSE (P.way) shall inform SSE (OHE)/ Traction
Power Control (TPC) well in advance for arranging
sanction of power block required.
3. No part of the tree shall be nearer than 4M from
the nearest live conductor.

Traction Area
4. The responsibility for whole sale cutting of the
trees, i.e. cutting of tree trunks, will rest with the
Engineering Department.
5. The day to day trimming of the tree branches,
wherever required, to maintain the 4 m safety
clearances from OHE shall be done by the
authorized TRD staff and Supervisors. (JPO of SCR
01/2013 Dt. 18.03.2013)

Traction Area
6. No fallen wire or wires shall be touched unless
power is switched off and the wire or wires suitably
earthed.
7. Earthwork - For excavation works adjacent to tracks
in A.C. traction areas, intimation should be given to
the concerned Electrical and S&T Department.
8. While excavating, the foundations of OHE not be
exposed and there should be risk of sinking of the
foundations.

Traction Area
9. The top foundation blocks in electrified structures
should be kept clear of all materials.
10. Alteration to Track during Machine Tamping/Track
Renewal – The relative alignments of the centreline
of the track with respect to the alignment of the
contact wire must be maintained within the
specified tolerances.
11. This applies to both horizontal and vertical
clearances.

Traction Area
12. For Slewing or alterations to track involving
adjustment of contact wire (outside the agreed
maintenance limits) sufficient prior notice of 48 hrs.
13. Do not raise the rail level under FOBs, ROBs and
other over line structures or slew track / realign
without the knowledge of traction staff.
14. Alterations to Track bonding – During Emergency
any bond removed by the staff of the Engineering
Department shall be replaced by the staff of the
Engineering Department.

Traction Area
15. Steel tapes or metallic tapes with woven metal
reinforcement should not be used in electrified
tracks.
16. In case of Material Trains, loading and unloading
of such wagons in electrified sections shall be done
under the supervision of not below the rank of
JE/(P.Way), who shall personally ensure that no tool
or any part of body of the workers comes within the
'Danger zone' i.e., within 2m range of OHE.

Traction Area
17. During working of On-Track Machines, No staff
should be allowed to climb on top of machines and
the JE/(P.Way) shall personally ensure that no tool
or any part of body of the staff comes within 2 m of
OHE.
18. Working of cranes - No crane shall be worked
except on the authorized 'Permit-to-Work'. In every
case of working a crane, arrangement should be
made for the presence of authorized OHE staff to
ensure that all safety precautions are taken.

Traction Area
19. Inspection of Tunnels - For inspection of roofs and
sides of a tunnel, the overhead equipment shall be
rendered 'dead'.
20. In track circuited area, insulated joints shall not be
bridged with bare hands or any metallic articles.
21. Use of rails as a foot path, a seat or for such other
purposes is strictly prohibited.

Traction Area
22. 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 300M.
23. Permanent way staffs are advised to keep clear of
the tracks and avoid contact with the rails when an
electrically hauled train is within 250 m.
24. Permanent Way tools (insulated and un-insulated)
along with gloves shall be used in manner as
approved by the CTE of the railway.

Maintaining Continuity of Track
1. During maintenance or renewal of track, continuity
of the rails serving electrified tracks shall invariably
be maintained.
 For bridging gaps which may be caused during
removal of fish-plates or rails, temporary metallic
jumpers of approved design shall be provided.
 The necessary jumper will be provided by the
Electrical Department on requisition.

2. In case of rail fracture, the two ends of the
fractured rail shall be first temporarily connected by
a temporary metallic jumper of approved design.
In all cases of discontinuity of rails, the two parts of
the rail shall not be touched with bare hands;
Gloves of approved quality shall be used.
3. In the case of track renewals, defective or broken
rail bond and before fish plates are loosened or
removed, temporary connection shall be made.

4. Since relaying by (PQRS/TRT/T-28) involves removal
of existing rails along with all the different types of
traction bonds, provide temporary jumpers for
passage of return current till such time the
permanent bonds are fixed to the new rails.
5. Before fish-plates are loosened or removed
temporary connection shall be made.

Temporary jumpering of rails in case of rail
fractures

Precautions to be taken while carrying
Major Track Maintenance Works
1. Intimation regarding change of rails has to be given
to OHE staff to ensure that rail bonds are provided
to new rails ( ADRM/T/SC letter dt 0.04.2000)
2. An authorized OHE staff should invariably be
present, when relaying work or any major work on
track is carried out, in order to ensure the
following points:
(a) Power block is correctly taken and permit to work
is issued.

(b) The structure bonds, track bonds, cross bonds,
longitudinal rail bonds etc. are not disturbed and if
disconnected for the work, they are reconnected
properly when the work is completed.
(c) The return feeder connections to the rails at the
feeding posts are proper and not disturbed.
(d) The setting distance of the structure is not
affected during slewing
(e) The track level is not raised beyond the
permissible limits during the work;

(f) Excavation or digging near a mast foundation is
done in such a manner that the foundation is not
exposed;
(g) The clearance particularly at over line structure is
maintained to the required standards;
(h) Precautions for the safety of staff working under
the OHE are taken correctly.
(i) The Engineering officials in charge of such major
work shall ensure that intimation is given to their
counterparts for OHE maintenance work with
adequate notice.

3. As per JPO of SC division dt. 1.10.08-Bonding on track
circuit area.
(a) Whenever a new joint is likely to be introduced (FP or
SEJ) in track circuit areas, give information to TRD and
S&T department for provision of continuity bonds
across the joint.
(b) If case any old bond is removed during working on
track by Engg dept the same is to be re provided by
Engg dept.
(c) OHE bonds which are crossing the positive rail should
be provided with insulation by electrical dept.

(d) Joint inspection of track circuits to be carried out
by Electrical, Engg and S&T once in 3 months.
(e) During Joint inspection GJ Insulation to be
measured and values to be recorded in joint
inspection register.
4. Permanent way staff shall be responsible to make
hole in new rails for reconnection of bonds.
(Camtech Maintenance Handbook on Bonding &
Earthing for 25 kV AC Traction System April 2009
Annexure -C )

Cutting of trees in electrified territory
(JPO of SCR 01/2013 Dt 18.03.2013)
1. No part of the tree shall be nearer than 4 m from
the nearest live conductor.
2. Any tree or branches likely to fall on the live
conductor should be cut or trimmed periodically to
maintain the safety clearances in the presence of
TRD staff.
3. If required power block shall be availed as a safety
measure for cutting of trees.

(JPO of SCR 01/2013 Dt 18.03.2013)
4. Responsibility of cutting of trees will be on Engg
department in the presence of TRD staff to ensure
safety and satisfactory completion of work.
5. Any approval required from forest department
same is to be arranged by Engg department
6. Day to day trimming of trees when ever required to
maintain 4m safety clearance from OHE shall be
done by TRD staff.

(JPO of SCR 01/2013 Dt 18.03.2013)
7. Modalities to be adopted for cutting/trimming of
trees either by department or contractor may be
decided by respective departments based on local
condition.
8. SSE/TRD and SSE/P.Way shall conduct joint
inspection and identify the trees to be cut and
location wise details with the extent of work at each
location shall be recorded.
9. Joint inspection shall be done once in 3 months and

(JPO of SCR 01/2013 Dt 18.03.2013)
10. One such inspection shall be done 3 months
before onset of monsoon so that cutting or
trimming of trees identified can be completed
before onset of monsoon.
11. one more such inspection carried during monsoon
to survey any further trees which are likely to
infringe to be cut or trimmed.
12. No tree within a distance of H+6m (H is the height
of the tree) from centre line of track is permitted in
the newly electrified section of track.

(JPO of SCR 01/2013 Dt 18.03.2013)
13. In old sections this exercise should be completed
in a planned manner.
14. While cutting the trees the height of tree shall not
be more than contact wire.
15. Trees identified for cutting shall be marked with
red band of 6" wide around the trunk at about 2' to
3' from GL.
16. Joint report for cutting of identified trees to be
submitted by SSE to Sr.DEN/DEN and Sr.DEE/TRD at
each end of quarter.

(JPO of SCR 01/2013 Dt 18.03.2013)
17. If any of tree lies in private land, the owner of the
tree shall be persuaded regarding the impact of tree
falling on track/OHE and cutting or trimming of tree
carried out as the case may be either by railways or
private party.
18. In any case safety precautions shall be followed
strictly.

(JPO of SCR 01/2013 Dt 18.03.2013)
19. Accountal and disposal of trees cut will be done
by Engg department and the accountal and disposal
of trimmed branches is responsibility of TRD
department.
20. Expenditure for cutting and trimming of trees to
maintain safe clearances for OHE shall be debited to
the revenue grant of TRD department.

Height Gauge
 Height gauges at all the level crossings shall be
erected with clear height of 4.78m above road level
with a view to prevent loads of excessive height
from coming into contact or dangerous proximity to
live traction wire (Contact wire) which shall be at a
height of minimum 5.50m above rail level at level
crossings.
( ACS 32 dated 09.10.2020 of ACTM Vol -11 Part -1
Proforma 10.2 )

Neutral section
 Neutral Section is defined as short insulated dead
overhead equipment separating sectors fed by two
adjacent substations which are normally connected
to different phases.
The neutral section is a dead zone and therefore,
the locomotive has to negotiate the section in
momentum.

Programmed speed restrictions at Neutral
Sections (G&SR Para no SR.17.07.3.)
1. Whenever speed restrictions of less than 30 KMPH
on either side of the neutral section (for
programmed works) is necessary, such speed
restrictions shall not be imposed until the
Sr.DEN/DEN concerned has made arrangements
with the Sr.DEE/DEE(Tr.D) for temporary
energisation of the neutral section.

2. After the temporary neutral section is provided
with necessary warning boards, the Tr.D staff shall
authorise the Station Master/SCOR to permit
movement of electric train/EMU into the section,
duly exchanging PNs and also after informing TPC
that the neutral section has been jumpered and
temporary section provided, duly specifying the
location.

3. No electric train/EMU shall be permitted to enter
the section with speed restriction of less than 30
KMPH.
4. Unless the Station Master/SCOR has received this
authorisation from Tr.D staff, under such conditions,
the Loco Pilots of all electric trains/EMUs shall be
issued with Caution Orders at stations/notice
stations concerned, permitting them to pass the
neutral section with power on and also indicating to
them the location of temporary neutral section,
where the pantographs have to be lowered and
raised.

Emergency speed restriction at neutral
sections.(G&SR v SR.17.07.4.)
1. Whenever emergency speed restrictions of less
than 30 KMPH are required to be enforced within
one KM on either side of the neutral section, the
permanent way staff shall immediately arrange to
protect the affected section on either side and take
all steps to bring to halt any train in rear of neutral
section.
2. The JE/SSE/P.Way shall also inform the nearest
Station Master regarding imposition of speed
restriction.

3. The Station Master shall inform the Station Master
at the other end of the neutral section, the SCOR
and TPC.
4. The SCOR and Station Masters at either end of the
neutral section shall not permit the entry of any
electric train/EMU into the section until an advice
has been received from the TPC.
5. The TPC shall make immediate arrangements for
energising the neutral section and provision of a
temporary neutral section.

6. After this has been completed, movement of
electric trains/EMUs shall be permitted in
accordance with S. R. 17.07.3.
7. The TRD official, who has jumpered the neutral
section, shall issue a Caution Order to the Loco Pilot
of the train, if any which might have been stopped
in rear of the neutral section, advising him that he
can pass the neutral section, with power on and
also informing him, if necessary, the locations at
which he has, to lower and raise pantograph at the
temporary neutral section.

OHE Clearances
Minimum height
from RL to
underside of live
conductor
Under Bridges and tunnels 4.80M
In the open 5.50M
At LC 5.50M
In running and carriage sheds 5.80M
Standard
implantation for
new works Mast
having single OHE
If minimum formation width
in embankment available
2.80M
If this formation width is not
available, without approval of
CEE
2.50M
With approval of CEE 2.36M

OHE Clearances
Implantation in
yards Mast having
single OHE
If 2.8 m is not available,
implantation can go down
minimum upto 2.36 m
without approval of CEE
2.36M
Implantation Mast
having more than
one OHE
Not less than 3.0 m which
may be relaxed to 2.8 m with
the personal approval of CEE
3.0m may
be relaxed
to 2.80m
Implantation Portal Carrying more than one OHE Not less
than
3.00m
Implantation TTC
two track cantilever
Main line 3.0m

OHE Clearances
Implantation
outside
curves
Radius of curvature greater than
or equal to 875 m
2.50m
Radius of curvature less than 875 m 2.65m
Implantation
Inside
curves
Radius of curvature greater than or
equal to 3500 m
2.90m
equal to 2350m but less than 3500m
3.05m
3.25m
3.30m

OHE Clearances
Implantation mast
on platform
Not less
than
4.75m
Implantation
obligatory mast
T/O and cross over Min 3.0m
Minimum
horizontal distance
from centre line of
the track to face of
foundation of
OHE/Portals
Below the rail level up to the
formation level of the track on
straight line and curves up to
radius of 875m
2575mm
Below the rail level up to the
formation level of the track on
curves less than radius 875m
2725mm

OHE Clearances
Height of ROB/FOB
For new overhead
structure and
alteration to existing
overhead structures
Light over head
structures FOB
6250mm
Heavy over head
structures ROB
5870mm
Height of existing
over head structures
Light over head
structures FOB
6250mm
Heavy over head
structures ROB
5870mm

OHE Clearances
Restricted height of
existing over head
structures up to
1600mm on either side
of track for min height
of contact wire 4.8m
Light over head
structures FOB
5270mm
Heavy over head
structures ROB
5070mm

Depth of Underground cables
• All low, medium and high voltage upto and
including 11 kV crossing(s) shall normally be by
means of underground cable(s).
• While for voltages higher that 11 kV, crossings may
be by overhead lines or underground cables.
• As per RVNL Standard specifications for material
and works Vol-11 29.1.2015

Location Minimum depth of top of
laid cable/pipe from
ground surface/bottom of
sleeper
Line
Under ground
1100mm from ground
surface
Cables to be
laid
in single tier
formation
Under road
1100mm from ground
surface

Location Minimum depth of top of laid cable/pipe from ground
surface/bottom of sleeper
Line
Under
railway
track
Not less than 1200mm from bottom of laid sleeper locations
where ground and track formation are in same level (with
manual digging)
New
lines
Not less than 3000mm from ground level at locations
where track formation level is above ground level (with
trenchless method)
Not less than 1200mm (with manual digging) and 3000mm
(with trenchless method) from bottom of laid sleeper
locations where ground and track formation are in same
level
Location
s other
than
new
lines ( as
approve
d )
Other
than
above
Not less than 1200mm (with manual digging) and 3000mm
(with trenchless method) from bottom of laid sleeper
locations where ground level at locations where track
formation level is above ground level

Precautions to be taken in electrified territory
Do’s
1. Warn all staff working under your control about the danger of
coming in close contact to the live traction overhead wires
within 2 metres.
2. All electrical equipment, every power line or cable shall be
regarded as being ‘live’ at all times.
3. Counsel staff not to climb the OHE mast.
4. Precautions for the safety of staff working under the OHE are
taken correctly. Permanent Way tools (insulated and un-
insulated) along with gloves shall be used in manner as
approved by the Chief Track Engineer of the railway.
(IRPWM Para no 669)

Do’s
5. All staff to report immediately any abnormality on the
OHE which may adversely affect safety of train
movements to the TPC either directly or through any
Station Superintendent, Section controller or through
nearest available telephone. If the damage is heavy or
the moving dimensions are infringed take steps to
protect the lines in accordance with G & SR.
6. The risk of direct contact with the live OHE is ever
present while working in electrified sections such as for
painting of steel work of through spans of bridges and
platform covered sheds etc., Therefore no work shall be
done within a distance of 2m from the live OHE
without a permit-to-work.

Do’s
7. No tool or any part of the body of the worker comes
within the danger zone.
8.The return current in the rails may cause a potential
difference between two ends of a fractured rail and
at an Insulated joint etc, hence provide temporary
electrical connection invariably.
9.When unloading the rails along side of the track, do
ensure that rails do not touch each other to form a
continuous metallic mass of length greater than
300m.

Do’s
10. During maintenance/renewal of track, continuity
of the rails shall invariably be maintained. For
bridging gaps which may be due to removal of fish-
plates, breakage of rail etc., jumpers to be provided.
The two ends of fractured rail should be temporarily
connected by metallic jumpers of approved design
taking necessary precautions.
11.Before fish plates are loosened or removed,
temporary electrical connection between the two
rails shall invariably be made.

Do’s
12. In track circuited area, do not bridge insulated jointed
rails with bare hands or with any metallic article. Also do
not have simultaneous contact with an insulated section of
rails and non insulated section of rails.
13. Maintain implantation as per Standards in consultation
with TRD staff.
14. Ensure availability of TRD, S&T staff at site for removing
and replacing the traction bonds and jumper/bonding
connections wherever required.
 Cancel the block to resume the normal traffic only after
ensuring that the traction bonds/cable jumpers have been
reconnected by TRD, S&T staff.

Do’s
15.The structure bonds, track bonds, cross bonds,
longitudinal rail bonds etc. shall not be disturbed and if
disconnected for the work, they are reconnected
properly when the work is completed.
16.Ensure not to touch the OHE mast having broken
traction bond and maintain a distance of 2mts away
from it.
17.When a bond is broken or not bolted properly on any
one side and if there is any traction loco within 1000mts
range maintain a distance of 2mts away from that bond.

Do’s
18. Ensure competent authorised staff should only operate
OHE equipment.
19.Track bonds provided to structures /bridges. etc, shall not
be disturbed.
20. All bonds removed by the staff of the Engineering
Department shall be replaced by the staff of the Engineering
Department and all such removals and replacements shall
be reported to the Assistant Electrical Engineer, Traction
Distribution in-charge, concerned without delay.
21. Ensure the return feeder connections to the rails at the
feeding posts are proper and not disturbed.

Do’s
22. In case of defective or broken rail bond, a temporary
connection /jumper shall be provided.
23. Do take care when carrying or handling long pipes, poles,
ladders, overhanging on the shoulders which may
inadvertently comes in contact with or within 2 m of live
OHE.
24. During construction of ROB staff should also be warned
about the risk of extending the water pipes or any part of
their body or directing water jets within the danger zone of
OHE.

Do’s
25. Keep the top of foundation blocks of traction structures
clear of all materials and tidy
26. To give notice 48 hrs in advance to the OHE staff before
any alteration to alignment or level of track/relaying work
or any major work on track in electrified territory is carried
out.
27. TRD and S&T staff should be made available at 48 hr.
notice given by JE/SSE/P.Way for changing rails in case of
planned works and on the same day in case of rail fracture.
28. An authorized OHE staff should invariably be present,
when relaying work or any major work on track is carried
out.

Do’s
29. Ensure Power block is correctly taken and permit to work
is issued in electrified sections during track renewals,
working of cranes in electrified sections where OHE
department co-ordination is required.
30. Do ensure that while excavating or digging near a mast
foundation, the foundation is not exposed and there should
be no sinking of foundations. All such works to be done
under intimation to TRD staff.
31.During construction of ROB/repairs to ROB staff should
also be warned about the risk of extending the water pipes
or any part of their body or directing water jets within the
danger zone of OHE.

Do’s
32. Do always keep clear of all materials, the top of
foundation block of OHE mast. Keep the top of foundation
blocks of traction structures clear of all materials and tidy.
33. At LC gate maintain the clearance between the bottom
member of height gauge and the top surface of road shall
not exceed 4.78m.
34. Provide continuous protective screens/parapet walls on all
FOBs/ROBs and also ensure commissioning of FOBs only
after completion of the work with all statutory provisions
like screening, electrical earthing of FOBs steel work etc.
Until then the entry for FOB under construction shall be
physically blocked for the use of public.

Do’s
35. While working on service buildings and structures in the
proximity of OHE do take special care to ensure that tools,
measuring tapes, materials, welding cables are not placed
in a position where they are likely to fall or may come in
contact with OHE.
36.While carrying out excavation works adjacent to tracks and
cable routes in an electrified area take adequate precautions
for the safety of staff and avoid damage to underground
cables and rails bonds.
37.No crane shall be worked adjacent to OHE unless such
OHE is made dead and earthed and authorized OHE staff is
present.

Do’s
38. In case of wire snaps at level crossing, the Gate keeper
shall immediately inform to SM.
39. Make arrangements to stop all road traffic and inform the
nearest station master/TPC/OHE section in-charge.
40. As far as possible use closed wagons for engineering
material train.
41.Steel tapes or metallic tapes with woven metal
reinforcement should not be used in electrified tracks.
Linen tapes are safer and should be used.
42.In case of Material Trains, loading and unloading of such
wagons in electrified tracks shall be done under the
supervision of an Engineering Official not below the rank
of a JE/(P.Way), who shall personally ensure that no tool or
any part of body of the workers comes within the 'Danger
zone' i.e., within 2m range of OHE.

Do’s
43. No staff should be allowed to climb on top of machines
and the JE/(P.Way) shall personally ensure that no tool or
any part of body of the staff comes within 2 m of OHE.
44. For inspection of roofs and sides of a tunnel, the overhead
equipment shall be rendered 'dead'. Special insulated
apparatus should be used if sounding the unlined portions
to locate loose rock in the roof and sides, is required to be
carried out, when the overhead equipment is 'live'.
45. The clearance particularly at over head structure such as
FOB/ROB is maintained to the required standards.

Do’s
46. 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.
47.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 advice to the Assistant Divisional Engineer/Divisional
Engineer.

Do’s
48. All insulating sleeves on traction bonds passing under
positive rail of track circuits are intact and report to OHE
staff to take prompt action to replace the missing/ damaged
one.
49.Joint inspection of track circuits to be carried out by
Electrical, Engg and S&T once in 3 months ( JPO issued by
SC div dt 1.10.08 ).
50. Whenever a new joint is likely to be introduced (FP or
SEJ) in track circuit areas, give information to TRD and
S&T department for provision of continuity bonds across
the joint.
51.Permanent way staff shall be responsible to make hole in
new rails for reconnection of bonds.

Do’s
52. It would be the responsibility of the JE/SSE/P.Way in
charge at site to ensure the safety of the staff once the TRD
supervisor has attended to the above work to ensure that
temporary bonds jumpers are not damaged by engineering
staff during the course of working. Before energizing the
OHE after completion of work at the end of each day,
temporary jumpers/ temporary structure bonds shall be
provided on the auxiliary rails and the new rail by the TRD
supervisors as per instruction contained in ACTM. This
shall be jointly witnessed by the JE/SSE/P.Way in a register
provided for this purpose at site. TRD supervisor shall keep
the register in his custody.

Do’s
53. JE/SSE/P.Way at site should ensure that temporary rail
bonds are connected through auxiliary rail before opening/
dismantling of rail joints for replacing the panel.
54. Since relaying unit involves removal of existing rails along
with all the different types of traction bonds, provide
temporary jumpers for passage of return current till such
time the permanent bonds are fixed to the new rails.
55. The length of section of track provided with the temporary
jumpers shall also be indicated in the above joint register at
the end of each working day.

Do’s
56.All the staff should be clearly instructed not interfere with
the track after the work has stopped for the day and the
entries in the register made.
57.No bonds/ temporary jumpers shall be opened by the
Engineering branch without first informing the TRD
supervisor.
58.Formation of auxiliary track shall also be done in the
presence of TRD supervisor, who shall provide necessary
temporary earthing connection to ensure safety of staff.

Do’s
59. In the case of track renewals, defective or broken rail bond
and before fish plates are loosened or removed, temporary
connection shall be made. This has to be done by
Engineering Staff in presence of TRD Staff.
60. SSE/TRD and SSE/P.Way shall conduct joint inspection
once in 3 months and identify the trees to be cut and
location wise details with the extent of work at each location
shall be recorded.
61.No part of a tree shall be nearer than 4m from the nearest
live conductor. Any tree or branches likely to fall on live
conductor should be cut or trimmed periodically to
maintain this clearance.

Do’s
62. No tree within a distance of H+6m (H is the height of the
tree) from centre line of track is permitted in the newly
electrified section of track. In old sections this exercise
should be completed in a planned manner.
63. Only controlled blasting (by using rubber sheets or any
effective cover) shall be carried out in the vicinity of
electrified track under supervision of site in-charges and
prior intimation to TRD official.
64.During rainy season never open the Umbrella with metallic
stick under the OHE wire.

Do’s
65. When persons receive electric shock, take prompt action
for giving First-aid to restore breathing because even a
minor shock will also lead to respiratory problem.
66. 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.
67. 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.

Do’s
68. Use only insulated/wooden stick umbrella.
69. Ensure not to touch a person who is in contact with OHE
wire/charged and do not try to separate him/her from the
contact using a wooden stick and try to rescue him by
switching off OHE with the help TRD staff.
70. Ensure no work to be taken up RE without knowledge of
open line organisation.
71. Ensure no unsafe working is carried out, if required
necessary speed restriction may be imposed in view of
safety of trains.

Do’s
72. Ensure any hole drilled in the rail for providing OHE
bonds should be done in the presence of P.Way staff and
holes drilled at the neutral axis of the rail (Neutral axis for
60kg is 76.25mm, for 52kg is 66.50mm from bottom of rail)
and chamfered.
73. Ensure hole is not drilled in Heat effected zone of the
weld.
74. Ensure correct diameter of drill bit used for drilling of
bond holes in rails.
75. Ensure muck from trench digging is not mixed with
shoulder ballast.

Do’s
76. Before permitting execution of work it shall be ensured
especially those works which are to be carried out close to
running track the detail plans for safe execution of work are
made out in advance by RE and such work should be
permitted to be taken up only. Officials of open line are
directly responsible for safety of train operation at field level.
77. Ensure position of hole to drilled in rail for traction bond
shall not be such that it cause hindrance in driving the ERC
and affecting toe load of ERC.
78. Ensure position of bonds to be very close to sleeper end so
that it will not obstruct the machine working and packing of
sleepers.

Do’s
79.Ensure correct design of Z bonds provided at GJ for
efficient machine packing.
80.Ensure no rolling down of ballast at trenches opened for
mast foundation.
81.Ensure proper barricading is provided while digging
trenches on platform.
82.Ensure removal of muck from trenches dug on platform are
removed daily basis.
83.Digging of trenches for mast foundation which are coming
in the water way of side drains, the side drains are rebuilt
with diversion of water way and also ensure the muck is
cleared immediately.

Do’s
84. Ensure all the structures (ballast retainers, parapet walls,
side drains etc ) which were damaged by the electrification
work are repaired immediately by taking to the notice of
field engineer at site.
85. Carry out inspection of on going work sites as much as
possible during Foot plate/Trolley Inspection to check
quality of on-going work and safety of the running trains on
adjacent lines by SSE/P.Way (In-charge) and JE/SSE/P.Way
(Sectional) both.

Dont’s
1. Do not use steel measuring tapes, metal tape, tape with
woven metal reinforcement & long metallic wire rods on
the electrified track.
2. Do not touch fallen or hanging traction wires. In case the
wires drop at a level crossing, the Gate-keeper shall
immediately make arrangements to stop all road traffic and
keep the public away.
3. Avoid contact with the rails when an electrically hauled
train is within 250m.
4. Do not touch two ends of the rail with bare hands. Gloves
of approved quality shall be used.

Dont’s
5. Do not carry out any work within a distance of 2 meters
from the live parts of overhead traction wires unless the
traction wires are made dead and earthed and Permit to
work is obtained from an authorized traction staff.
6. Do not cut or trim tree near the traction OHE without the
presence of an authorized traction staff and without
obtaining permit to work from authorized traction staff.
7. Do not disturb track bonding or bonding provided to OHE
structures. If any bond is disconnected/disturbed,
immediately inform to traction staff.

Dont’s
8. Do not remove/loosen the fish plates without making a
temporary connection with a jumper of approved
design.
9. Do not bridge with bare hands or with any metallic articles
the insulated joints or rails in track circuited area.
10. Do not have simultaneous contact with an isolated section
of rail and non-isolated section of rail of the same or other
track.
11. Do not use rails as route path, for sitting or for any such
other purposes.

Dont’s
12. Do not carry long pipes, poles, ladders, vertically which
will come within the danger zone of 2 meters of live
overhead traction equipment.
13. Do not use open temporary jumper without informing the
TRD staff.
14. Do not hand/keep loose the welding cable while ROB
works are under progress.
15. Do not raise the rail level under FOBs, ROBs and other
over line structures. Do not slew track/re-align without the
knowledge of traction staff.

Dont’s
16. Do not use any kind of tools or metal articles such as paint
pots, oil case, metal bars etc., which can be either lifted or
be dropped or be carried by the wind on to the live OHE.
17. Do not raise the rail level under FOBs, ROBs and other
over line structures or slew track / realign without the
knowledge of traction staff.

Maintenance of Track in Electrified Areas.pptx

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