OHE Maintenance and Supervisor Responsibilities
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Questions and Answers

What is the main responsibility of the supervisor regarding OHE inspections?

  • Inspect only when defects are reported
  • Cover the entire section once every three months (correct)
  • Supervise only when maintenance is scheduled
  • Conduct inspections once a year

Which of the following actions must a supervisor take if defects are reported?

  • Wait for the next inspection to address them
  • Ignore them if they are minor
  • Only report them to his superior officers
  • Scrutinize the reports and arrange prompt rectification (correct)

How often should a supervisor's section gangs be checked for quality work?

  • Only during emergencies
  • Weekly
  • Periodically, as per prescribed schedules (correct)
  • Bi-weekly

What should a supervisor do regarding training for his staff?

<p>Instruct staff in maintenance methods with a focus on safety (B)</p> Signup and view all the answers

What is necessary for the maintenance of OHE tools and equipment?

<p>They must be properly cared for and maintained (C)</p> Signup and view all the answers

In case of a breakdown, what is the responsibility of the supervisor?

<p>Ensure the organization is ready to act promptly (C)</p> Signup and view all the answers

How should a supervisor handle spare parts and maintenance stores?

<p>Monitor availability and take timely action to recoup stocks (A)</p> Signup and view all the answers

What is strictly forbidden when making joints in a conductor?

<p>Reducing the useful cross section of a conductor (B)</p> Signup and view all the answers

What should be done to the transformer before starting any work on it?

<p>It should be earthed after opening isolating fuse switches (D)</p> Signup and view all the answers

When can work on overhead lines running parallel to electrified tracks be performed without switching off power from the 25 kV traction line?

<p>For replacement of lamps below the line (D)</p> Signup and view all the answers

What is the minimum tensile strength requirement for temporary anchoring of conductors?

<p>It should be at least equal to that of the cable being anchored (B)</p> Signup and view all the answers

What should be maintained in proper condition regarding structure bonds?

<p>The connections of structures to the ground (A)</p> Signup and view all the answers

What should be done with the removed fittings after replacing 100 percent OHE fittings in tunnels?

<p>Take them to the Workshop for detailed examination (C)</p> Signup and view all the answers

During the inspection of wires for overhead cross-feeders, which issues should be specifically checked?

<p>Frayed strands, overheating, pinching, or corrosion (D)</p> Signup and view all the answers

What should be done to ensure proper maintenance of insulators during inspections?

<p>Clean them while the attachments are dismantled (A)</p> Signup and view all the answers

What action should be taken for fittings that do not provide the prescribed margin of adjustment during POH?

<p>They should be replaced (C)</p> Signup and view all the answers

What should be done before tightening PG clamps during inspection?

<p>Ensure all joints are coated with vaseline (A)</p> Signup and view all the answers

What is the recommended approach if a major OHE breakdown occurs?

<p>Examine the bracket assemblies in about 8 to 10 spans (A)</p> Signup and view all the answers

What should be inspected regarding aluminum bronze fittings during workshop maintenance?

<p>Threads and condition of fittings with a magnifying glass (C)</p> Signup and view all the answers

What action should be taken if G.I. fittings show signs of deterioration during inspections?

<p>Repair with cold galvanizing paint if minor chipping is present (B)</p> Signup and view all the answers

What is the first action to take when checking turnouts?

<p>Inspect the contact wires relative to track compliance with SED (D)</p> Signup and view all the answers

During maintenance, how should rubber washers/rings be treated?

<p>Replaced where necessary after cleaning (B)</p> Signup and view all the answers

What should be done when the guide pulley is damaged?

<p>The entire equipment should be replaced with a spare one. (B)</p> Signup and view all the answers

Which of the following defects can lead to obstruction of the movable pulley?

<p>Damage to neoprene washers (D)</p> Signup and view all the answers

How often should regulating equipment be overhauled?

<p>Every two years. (C)</p> Signup and view all the answers

What is the purpose of the stop nuts on the guide rods?

<p>To stop the movable pulley from coming off in case of rope breakage. (B)</p> Signup and view all the answers

What should be used to check the integrity of stainless steel ropes?

<p>A magnifying glass. (C)</p> Signup and view all the answers

What temperature can the approved grease withstand without drying?

<p>60 degrees C. (B)</p> Signup and view all the answers

What is an indicator that the regulating equipment needs to be overhauled?

<p>If visible movement of the counter weight requires more than 10 kgf. (C)</p> Signup and view all the answers

What defect is NOT manageable in-situ?

<p>Replacing guide pulley. (A)</p> Signup and view all the answers

What is affected by the shape and dimensions of the winch frame arms?

<p>Angle of incidence of the stainless steel wire rope. (D)</p> Signup and view all the answers

What is the maximum speed allowed for the OHE Inspection Car when checking contact wire level and stagger?

<p>10 km/h (A)</p> Signup and view all the answers

What should be done to the pantograph before starting any operation for checking OHE?

<p>Check the cable connection (B)</p> Signup and view all the answers

Who is responsible for ensuring the safety of the section before someone goes up on the roof of the OHE Inspection Car?

<p>An authorized person not lower than a linesman (C)</p> Signup and view all the answers

Under what condition can the OHE inspection car operate with the pantograph raised?

<p>With the section live (C)</p> Signup and view all the answers

What is the procedure for the OHE Inspection Car when approaching turnouts and cross overs?

<p>Stop and ensure the section ahead is dead and earthed (B)</p> Signup and view all the answers

What should be done to the pantograph when not in use?

<p>Fully lowered and clamped securely (C)</p> Signup and view all the answers

How many OHE staff need to be trained to drive the OHE Inspection Car in emergencies?

<p>At least two (C)</p> Signup and view all the answers

Which condition is NOT allowed for the operation of the OHE Inspection Car?

<p>Working with the pantograph raised without earthing (C)</p> Signup and view all the answers

What should be used instead of strings or cords to clamp the pantograph securely?

<p>Metal clamps (D)</p> Signup and view all the answers

What is prohibited when driving the OHE Inspection Car for checking operations?

<p>Riding on the clutch (B)</p> Signup and view all the answers

What is the primary responsibility of a linesman during patrol work on OHE?

<p>To identify and report common types of defects (D)</p> Signup and view all the answers

Which method is recommended to check if OHE masts are out of plumb?

<p>Employing a plumb bob (A)</p> Signup and view all the answers

What is a critical action linesmen should take if they notice erosion near OHE masts?

<p>Report to the Engineering Department for intervention (C)</p> Signup and view all the answers

Which approach is essential for maintaining traction assets in service?

<p>Minimizing outages without compromising safety (B)</p> Signup and view all the answers

During the assessment of masts, what should be measured to determine their deflection?

<p>At a height of 1.85 m multiplied by three (B)</p> Signup and view all the answers

What should linesmen develop the ability to do in the event of OHE breakdowns?

<p>Carry out temporary repairs to restore traffic quickly (A)</p> Signup and view all the answers

What should be taken into account while defining the preventive maintenance schedule?

<p>Recommendations of Original Equipment Manufacturer and guidelines issued by relevant authorities (B)</p> Signup and view all the answers

What is the purpose of utilizing a ratchet screw adjustment on a micrometer when measuring contact wire thickness?

<p>To ensure uniform pressure between the jaws (B)</p> Signup and view all the answers

How should the location for measuring contact wire thickness be identified for consistency in future measurements?

<p>By painting a 75 mm wide band with black paint (A)</p> Signup and view all the answers

What action must be taken if the contact wire reaches the condemning limit of thickness?

<p>Introduction of a splice at the point (A)</p> Signup and view all the answers

What is the maximum number of splices allowed in one tension length according to the given standards?

<p>15 splices (D)</p> Signup and view all the answers

Which material is commonly used for the main components of splice fittings in OHE equipment?

<p>Aluminum bronze (A)</p> Signup and view all the answers

What testing must samples of splice fittings undergo in addition to normal quality tests?

<p>Special tensile tests (A)</p> Signup and view all the answers

What is the minimum distance a splice should be located from a support in the direction of traffic?

<p>5 m (C)</p> Signup and view all the answers

In new constructions, what is the general rule regarding splice usage?

<p>No splices shall be provided (D)</p> Signup and view all the answers

What is the preferred distance between adjacent splices according to guidelines?

<p>100 m (A)</p> Signup and view all the answers

What should be done if more than two sheds are broken on an insulator?

<p>Replace the insulator (A)</p> Signup and view all the answers

Which step is required when checking the condition of droppers?

<p>Tighten bolts wherever required (D)</p> Signup and view all the answers

What is the maximum stagger allowed at the turn cuts for Overhead Equipment (OHE)?

<p>300 mm (D)</p> Signup and view all the answers

What should be done with galvanized pipes that show chipped galvanization?

<p>Replace the fitting with a new one (B)</p> Signup and view all the answers

What action is necessary for muffs that are cracked or damaged?

<p>Recast the muffs (C)</p> Signup and view all the answers

During inspections, what should be checked regarding the contact and catenary wires?

<p>They should be free of kinks and twists (D)</p> Signup and view all the answers

What should be done if PG clamps and jumpers show signs of wear?

<p>Open the clamps and check condition properly (D)</p> Signup and view all the answers

What is required for the inspection of caution notice boards and number plates?

<p>Verify they are well secured and painted as required (D)</p> Signup and view all the answers

What action should be taken if components in cantilever assemblies show signs of overheating?

<p>They should be checked for proper tightening and alignment. (B)</p> Signup and view all the answers

What should be done if any stranded conductor has more than 20% of its strands broken?

<p>Splice the conductor (A)</p> Signup and view all the answers

When checking the heights and staggers, what is essential regarding coordination?

<p>Co-ordinate with Permanent Way Inspectors (C)</p> Signup and view all the answers

During the maintenance of contact wires, which tool should be avoided for cleaning grooves?

<p>File (B), Scraper (D)</p> Signup and view all the answers

What is the key consideration when checking the position of the contact wire relative to tracks?

<p>It must comply with the specified SEDS. (C)</p> Signup and view all the answers

What is the purpose of the maintenance charts that may be prepared in different colors?

<p>To visualize the progress and schedule of maintenance tasks. (B)</p> Signup and view all the answers

All regulating equipment must be replaced with what type of equipment?

<p>Previously overhauled ones. (A)</p> Signup and view all the answers

When performing POH, what should be done with the brackets of cantilever assemblies in relation to the mast axis?

<p>Their position must be checked against the mast's axis for temperature variations. (B)</p> Signup and view all the answers

What should be ensured regarding the insulators of anchoring wires during inspections?

<p>They need to cross the plane of OHE as per plan. (B)</p> Signup and view all the answers

What is the recommended action if kinks are observed in the conductors during maintenance?

<p>They must be removed to avoid risk of damage. (C)</p> Signup and view all the answers

Which of the following practices is NOT recommended when dismantling jumper connections?

<p>Applying excessive force to remove connections. (D)</p> Signup and view all the answers

How should detailed examinations of various components in cantilever assemblies be conducted?

<p>After thorough cleaning and dismantling. (C)</p> Signup and view all the answers

What should be monitored closely on the stainless steel rope during inspection?

<p>End fittings for damage (A)</p> Signup and view all the answers

During patrols of overhead lines, what indication suggests a serious structural issue?

<p>Settled soil over foundation ground level (A)</p> Signup and view all the answers

Which factor does NOT influence the frequency of patrolling overhead lines?

<p>Age of the overhead lines (D)</p> Signup and view all the answers

What should be done to the overhead line structures if protective coatings have disappeared?

<p>Apply new protective coatings (D)</p> Signup and view all the answers

What is the first action taken if defects are noted during overhead line inspections?

<p>Immediately notify the maintenance team (A)</p> Signup and view all the answers

Flashcards

OHE Maintenance Planning

Anticipating power block needs for OHE maintenance work, coordinating with supervisors, and ensuring timely completion.

Regular OHE Inspections

Thorough visual inspections of the Overhead Line Equipment (OHE) every 3 months using trolleys.

Defect Reporting & Rectification

Reviewing daily reports, promptly addressing OHE defects, and reporting completion to superiors.

Quality Control of Work

Supervising sectional gangs to ensure maintenance is done correctly and adheres to schedules.

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Breakdown Response

Maintaining a prepared team to quickly address OHE breakdowns and restore service.

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Staff Training

Training staff on maintenance methods and safety procedures related to OHE.

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Staff Development (Training Courses)

Arranging staff training as needed.

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Equipment Maintenance

Ensuring proper care and maintenance of testing equipment, tools, OHE inspection cars, and breakdown vehicles.

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Spare Parts Management

Monitoring the availability of required spare parts and initiating action for replenishment.

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Store Accounting

Maintaining accurate records of stores and tools, and undergoing periodical verification.

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Reporting Requirements

Submitting required reports to the designated superior officers (DEE/AEE(TRD)) and complying with their instructions.

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Communication with Superiors

Keeping superiors informed of critical developments and seeking guidance when necessary.

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Additional Duties

Carrying out other assigned duties by superior officers.

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Annex 3.01 Inspections

Completing inspections as detailed in Annex 3.01.

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Field Supervisor Responsibilities

Specific duties of field supervisors in charge of OHE maintenance, including adherence to schedules.

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Pulley Block Equipment Checks

Checks for pulley block type equipment include checking counter weight descent, neoprene washer condition, sliding rod movement, grease nipples, and stop nuts integrity. Equipment replacement is needed for many issues except for blocked grease nipples and guide pulley replacement.

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Pulley Block Lubrication

Main and guide pulley bearings should be lubricated with approved grease which can withstand 60°C without drying.

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Stop Nuts Integrity

Stop nuts at the end of guide rods prevent the movable pulley from sliding off the guide rods in case of rope breakage.

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Winch Equipment Defects

Winch equipment common defects include stainless steel rope over riding, strand breakage, pulley bearing seizure, anti-falling device tilting.

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Stainless Steel Rope Inspection

Stainless steel ropes should be periodically inspected for corrosion using a magnifying glass to identify signs of putting or corrosion.

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Regulating Equipment Check

Regulating equipment should be checked for smooth movement periodically using a spring balance. If pull exceeds 10 kgf, overhaul is needed.

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Panto/OHE Entanglement

Regulating equipment must be checked carefully in the event of panto/OHE entanglement, especially if overhauled more than two years before.

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Regulating Equipment Overhaul Frequency

Regulating equipment should be overhauled every two years. Priority is given to those covering vulnerable areas. Until a 4-year grease becomes available, 2 year overhauls are needed.

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Winch Frame Arm Inspection

During overhaul of regulating equipment, inspect the winch frame arms (right and left) shape and dimensions as it influences stainless steel wire rope angle on the drum.

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OHE Inspection Car Speed Limit

When inspecting contact wire level and stagger, the OHE Inspection Car speed must not exceed 10 km/h. It must be driven in first gear. Using the clutch is prohibited.

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OHE Inspection Car General Speed

Unless for recording operations, the OHE Inspection Car's speed should not exceed its designed speed, adhering to section-specific speed restrictions.

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OHE Inspection Car Training

At least two OHE staff in each depot must be trained and certified to drive the OHE Inspection Car, solely for emergencies.

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Pantograph Bonding

The pantograph on the OHE Inspection Car is electrically connected to the underframe via a cable. This cable connection must be checked before any OHE inspection or adjustment.

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Pantograph Position

The pantograph should usually be fully lowered and secured using its special clamp. Do not use string or cords.

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OHE Inspection Car Roof Access

Before accessing the roof for inspection or adjustment, the specific section of OHE must be turned off and earthed on both sides. Additional earthing points are required as needed.

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Pantograph Operation and Earthing

Never operate the OHE inspection car with the pantograph raised without earthing on both OHE section sides.

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Pantograph Protection & Track Safety

Use flags (banner and signal) to protect the OHE inspection car from live sections. Stop ahead of turnouts, crossovers, insulated overlaps, and section insulators. Ensure sections ahead are dead and earthed before proceeding.Remove flags to enter a safe section

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Conductor Joint Reduction

Do not reduce the useful cross-section of a conductor when making joints.

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Unearthed Conductor Contact

Avoid touching any conductor that is not specifically grounded.

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Anchoring Rope Strength

The anchoring rope must be as strong, or stronger, than the cable being anchored.

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Temporary Conductor Anchoring

Only use stranded flexible steel cable with equal or greater tensile strength as the cable to be anchored.

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Using Non-Metallic Ropes

Do not use cotton, jute, or other non-metallic ropes for anchoring.

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Structure Bonds and Cable Connections

Keep structure bonds and cable connections to earth in good condition.

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Rail Bond Maintenance

Maintain transverse bonds between rails (both same and different tracks) and avoid stacking heavy materials on rail bonds.

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Replacing Rails and Connecting Structures

If rails are replaced, connect the structure to the new rail immediately.

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Auxiliary Transformer Shut-Down Procedure

Open isolating fuse switches and remove fuses on both high- and low-voltage sides before working on auxiliary transformers. Ground the transformer.

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Parallel Overhead Lines Work

Before carrying out maintenance work on overhead lines parallel to electrified tracks, switch off the power from the 25 kV traction line and dead and earth the overhead line except for specific tasks.

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Specific Overhead Line Maintenance Allowed

Replacement of lamps below the line, painting of structures, reinforcement of foundations (no prior weakening), and replacement of aerial fuses allowed without switching off the power in parallel overhead lines work.

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Overhead Line Equipment (OHE) Fittings Inspection

Inspecting OHE parts for height, gradient, compliance with standards, and replacing any faulty or non-compliant fittings.

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Tunnel Contact Wire Adjustment

Inspecting and adjusting contact wire height and gradient in tunnels to meet specifications.

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OHE Fittings in Tunnels Replacement

Replacing OHE fittings in tunnels with new or overhauled components, sending old fittings for workshop examination.

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Turnouts Contact Wire Alignment

Ensuring contact wires position and compliance with the prescribed guidelines near turnouts.

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Overhead Wires Inspection

Inspecting overhead wires for damage (frayed strands, overheating, pinching, corrosion) at suspension and PG clamps, tightening junction sleeves.

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Wire Tension Adjustment

Checking and adjusting tension in overhead wires as needed.

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PG Clamp Coating

Applying Veseline coating to all joints after tightening PG clamps to ensure safety and prevent corrosion

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Workshop Fitting Examination

Cleaning and inspecting aluminium bronze fittings, bolts, and nuts for cracks and thread condition, discarding defective parts.

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GI Fitting Deterioration

Inspecting galvanised iron (GI) fittings and pipes for galvanization deterioration then repair minor chippings using cold galvanizing paint.

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Major OHE Breakdown Response

For major breakdowns, carefully remove bracket assemblies in several spans to critically examine them for cracks or defects.

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Regulating Equipment Maintenance

Disassemble and clean regulating equipment, lubricating bearings, and replacing worn rubber washers or rings as necessary.

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Drawing Verification

Match all mast fittings against "as erected" drawings and accurately record and report any variations to Sr.DEE.

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Splice Position Recording

Recording the position of splice in relevant layout plans.

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Linesman Emergency Response

Linesman should respond to emergencies at switching stations under TPC instructions.

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OHE Defect Patrol

Linesman must patrol OHE for common defects and report findings to Section Supervisor.

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Temporary OHE Repair

Linesman should perform temporary repairs on OHE breakdowns to restore service rapidly.

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Minimizing Traction Equipment Outage

Prevent unnecessary downtime of traction equipment for better asset utilization, focusing on safety.

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Need-Based Maintenance

Prioritizes maintenance based on equipment condition, using reliable monitoring methods, reducing preventive maintenance when viable.

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OHE Mast Out-of-Plumb

OHE masts may become misaligned, often due to embankment erosion or foundation issues.

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Plumb Bob Check

Use a plumb bob to verify vertical alignment of masts.

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Deflection Measurement

Measure deflection at a specific height (1.85m) to determine the extent of mast tilt.

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Eng. Department Involvement

Contact the engineering department to address embankment issues for improved mast stability

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Cantilever Assembly Removal

Removing at least one complete cantilever assembly per 10 track-kilometers for dismantling and examination.

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Overhauled Regulating Equipment

Replacing regulating equipment with previously overhauled units, sending the old equipment to the workshop for further servicing.

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Bracket Articulation Check

Verifying the bracket's position relative to the mast's axis, accounting for temperature and distance from anti-creep.

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Cantilever Assembly Adjustments

Checking the adjustments, slope, and displacement of cantilever assemblies at each structure against the 'as erected' specifications.

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Jumper Connections Dismantling

Disassembling all jumper connections and cleaning conductors (copper/bronze with emery paper, aluminum with metallic brush).

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Overheating Jumper Check

Checking jumper connections for signs of overheating indicating loose connections or deformed clips, replacing damaged parts.

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Contact Wire Groove Cleaning

Cleaning the contact wire's groove with a fine metallic brush or emery paper, only.

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Insulator Position Check

Ensuring the position of contact wire is correct according to the standards (SEDS). Inspect anchoring wires' insulators for correct placement relative to OHE in respect to plan

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Contact Wire Thickness Measurement

Measuring the vertical thickness of contact wire using a micrometer to ensure consistent measurements over time.

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Micrometer Use

Use a micrometer with ratchet adjustment to avoid exceeding pressure limit when measuring contact wire thickness.

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Consistent Measurement Point

Measure contact wire thickness at the same point on each location year-by-year for meaningful comparison.

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Marking Measurement Location

Marking a 75 mm wide band on the mast to identify the specific location for consistent measurement of contact wire thickness.

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Measurement Reference Point

Measure 20 mm before the swivel clip in the direction of motion to obtain consistent measurement locations year-to-year.

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Supervisor Responsibility

Supervisors, familiar with micrometer usage, must take contact wire thickness measurements.

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Record Keeping

Maintain records of measurements in designated registers (ATFO(OHE) for jurisdiction, CTFO(OHE) for entire division) using proforma 03-4 in Section V.

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Splicing of Contact Wire

Introduce a splice when a point of contact wire reaches a condemning thickness limit.

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Splice Fitting Types

Common splice fittings include single contact wire (1080/1080-1), double contact wire (1280), catenary (1090), and feeder wire (1100).

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Splice Material Composition

Splice components are made of aluminium bronze, while studs are of stainless steel.

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Splice Tensile Testing

Splices undergo special tensile tests to ensure quality and reliability, supplementary to normal material tests.

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Minimum Splice Distance

Splices should ideally be located at least 5 meters away from supports in the direction of traffic flow to avoid any hard spots.

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Maximum Splices per Tension Length

Not more than 15 splices should be used in one tension length.

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Splice Spacing

Maintain a distance greater than 100 meters between adjacent splices, if possible.

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Splice Avoidance in New Construction

Ideally, no splices should be considered in new constructions.

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Bolt Tightness Check

Inspect all bolts, nuts, and checknuts for proper tightening on anchors and turnbuckles.

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Muff Drainage

Verify that muffs at the base of structures allow water drainage. Clean muffs and replace cracked ones.

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Bond Inspection

Thoroughly examine all bonds. Repair or replace defective or missing bonds as needed.

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GI Bolts Tightening

Tighten all galvanized iron (GI) bolts and nuts.

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Galvanization Check

Inspect galvanized pipes and fittings for chipped galvanization. Replace severely chipped fittings.

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Register Arm Inspection

Inspect register arms, hooks, and fittings for cracks. Inspect steady arm tubes for cracks.

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Insulator Inspection

Clean and check insulators for cracks and broken sheds. Replace insulators if damaged.

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Height & Stagger Adjustment

Adjust the height and stagger of OHE components based on set distances and rail levels.

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Caution Board Condition

Verify presence and condition of caution notices, number plates, and coasting boards. Repaint as needed, ensure secure fastening.

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Tube Drain Holes

Ensure tube drain holes are clear and unclogged.

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Contact Wire Condition

Inspect contact wires for kinks, twists, and broken strands. Splice any conductor with over 20% broken strands.

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PG Clamp Check

Inspect PG clamps and jumpers, open clamps, and tighten connections.

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Dropper Inspection

Inspect and tighten droppers as needed and ensure they are vertical.

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OHE Inspection Car (Main Line)

Check pantograph movement while on the main line for smooth operation under the loop line OHE.

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OHE Inspection Car (Loop Line)

Check pantograph movement while on the loop line for smooth operation under the main line OHE.

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OHE Stagger Check (Turnouts)

Verify OHE stagger at turnouts, ensure it doesn't exceed 300 mm (usually less).

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Overlap Turnout OHE Height

Check if main line OHE of overlap type turnout is 50 mm lower than turnout OHE.

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Cross-Contact Bar Check

Examine cross-contact bars for displacement, distortion, and hit marks.

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Grazing/Rubbing on Pulleys

Damage to pulleys from rubbing or grazing warrants repair or replacement of the equipment.

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Lubricating Holes

Lubricating holes must be unobstructed for grease flow.

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Stainless Steel Rope Inspection

Inspect stainless steel ropes for strand damage, especially at end fittings.

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Approved Lubricant

Use only approved lubricants for regulating equipment.

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OHE Rehabilitation

Rehabilitation of Overhead Line Equipment (OHE) fittings can be done after 20 years based on condition assessment.

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Overhead Line Inspection

Overhead lines should be periodically inspected for faults and repaired immediately.

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Overhead Line Patrolling (Monsoon)

Overhead lines should be patrolled before and after the monsoon season.

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Inspection Notes

Patrollers should document inspection findings and forward them for repairs.

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Structure Inspection (OHE)

Inspect structures for leaning, deformation, missing fasteners, and damaged protective coatings.

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Foundation Inspection (OHE)

Inspect foundations for signs of damage, settling, and any missing protections.

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Insulator/Fitting Inspection

Inspect insulators for damage, pollution, missing parts, and burnt-out fittings.

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Study Notes

Chapter III - Overhead Equipment

  • Divided into five sections: Organization, Guiding Notes on Maintenance, Maintenance Schedules for OHE, Safety Rules for OHE, and Forms and Registers.
  • Section I: Describes the duties of three staff categories in OHE, including the Chief Traction Foreman (CTFO) and Traction Foremen (TFOs). CTFO controls all activities while TFOs manage functional activities.
  • Section II: Outlines important maintenance points for OHE components.
  • Section III: Provides a recommended maintenance schedule for OHE.
  • Section IV: Presents the essential safety rules for OHE staff.
  • Section V: Details the records and forms for OHE maintenance.
  • Appendices include documents on layout plans, bonding, regulations for power line crossings, maintenance depots, and specifications for equipment and materials for railway electric traction.

Organization

  • Chief Traction Foreman (CTFO) is the senior supervisor in charge of OHE maintenance, including 25kV feeders and return feeders.
  • CTFO is responsible for proper installation maintenance of OHE and for staff training.
  • Field Supervisors (ATFO, chargeman, inspector) are responsible for OHE and allied installation maintenance following schedules in their jurisdictions, manage power block requirements, and detailed inspections.

Duties of Field Supervisors

  • Maintain OHE and allied installations.
  • Coordinate with permanent way maintenance for power block requirements.
  • Conduct detailed OHE inspections according to procedures.
  • Supervise maintenance gangs.
  • Handle breakdowns promptly.
  • Provide training to staff.
  • Maintain tools and equipment.
  • Ensure proper stores management
  • Report to superiors and provide updates.

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Related Documents

Overhead Equipment Maintenance Guide (PDF)

Description

This quiz focuses on the responsibilities of supervisors regarding Overhead Equipment (OHE) inspections and maintenance. It covers essential procedures for addressing defects, training staff, managing tools, and ensuring safety standards. Test your knowledge on best practices and regulations related to OHE operations.

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