OHE Maintenance Depots Overview
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Questions and Answers

How many Portable Fire extinguishers with a capacity of 10 liters are listed?

  • 2 (correct)
  • 4
  • 1
  • 3

    • What is the capacity of the foam type portable fire extinguisher mentioned?

  • 2 liters
  • 10 liters
  • 15 liters
  • 5 liters (correct)

    • Which item is categorized as a testing and measuring equipment?

  • Portable Fire extinguisher
  • Copper Hammer 2 kg
  • Bench Vice 6”
  • Earth Megger / Tester (correct)

    • What is the total number of Single Sleeve Pulley blocks with a 3 1/2” x 1/2 Groove for fiber drawal?

    <p>10</p> Signup and view all the answers

    Which type of wire cutter is listed with a length of 12 inches?

    <p>Dropper Wire Cutter</p> Signup and view all the answers

    What is the maximum distance the beat of a maintenance depot should normally cover?

    <p>Four block sections</p> Signup and view all the answers

    Why is it important for maintenance depots to be located near educational and medical facilities?

    <p>To ensure staff satisfaction and retention</p> Signup and view all the answers

    What distinguishes a major OHE depot from a minor depot?

    <p>The presence of a tower wagon with its shed</p> Signup and view all the answers

    Which of the following equipment is typically found in a standard OHE maintenance depot?

    <p>Drilling machine</p> Signup and view all the answers

    Where can secondary activities like welding and carpentry be centralized?

    <p>At either the Divisional Headquarters or maintenance depots</p> Signup and view all the answers

    What is one benefit of having a centralized store for OHE materials?

    <p>It allows for large quantities of materials to be stored for major breakdowns.</p> Signup and view all the answers

    Which of the following is NOT mentioned as a standard workshop equipment in OHE maintenance depots?

    <p>CNC machine</p> Signup and view all the answers

    What is the recommended location for the combined OHE/PSI maintenance depot?

    <p>At a station with a traction sub-station</p> Signup and view all the answers

    What does PSI maintenance require according to the outlined setup?

    <p>A minimum complement of PSI staff at each depot</p> Signup and view all the answers

    Which annexure outlines the T&P items to be procured for OHE maintenance?

    <p>Annexure A6.01</p> Signup and view all the answers

    What type of vehicle is specifically mentioned for handling breakdowns at the major OHE Depots?

    <p>Heavy duty motor truck</p> Signup and view all the answers

    What additional transport is suggested for push trolley inspections by supervisors?

    <p>Push trolley for each OHE depot</p> Signup and view all the answers

    Which annexure details the T&P for the Division Repair shop for OHE?

    <p>Annexure A6.03</p> Signup and view all the answers

    What type of office equipment is provided by R.E. for field offices and depots?

    <p>General office furniture</p> Signup and view all the answers

    What is the purpose of the Jeep with trailer mentioned in the transport facilities?

    <p>For field officer use at headquarters</p> Signup and view all the answers

    How are general user items of T&P expected to be procured?

    <p>Directly by the Open Line</p> Signup and view all the answers

    How many motor trolleys are recommended for each station with an OHE officer headquartered?

    <p>One</p> Signup and view all the answers

    What is the purpose of the wiring-cum breakdown train provided for each Division?

    <p>To meet major OHE breakdowns</p> Signup and view all the answers

    What type of wagon is recommended for sections with higher traffic density?

    <p>Eight-wheeled high speed tower wagons</p> Signup and view all the answers

    What is the significance of quick restoration after an accident regarding OHE breakdowns?

    <p>It minimizes service interruptions</p> Signup and view all the answers

    How many Pull-lift 3 Tonne items are recommended for the Breakdown Train?

    <p>Two</p> Signup and view all the answers

    Which of the following is NOT included in the recommended T & P items for OHE Maintenance Organization?

    <p>Heavy machinery for construction</p> Signup and view all the answers

    What is the recommended number of Come-along clamps for Catenary suitable for the specified conductor?

    <p>Four</p> Signup and view all the answers

    What is the purpose of the Dropper making Jig and Wire straightener?

    <p>To create dropper wires</p> Signup and view all the answers

    How many Trifor 5 Tonne / 3 Tonne units are provided for the Major Depot?

    <p>Two</p> Signup and view all the answers

    How many items are listed for the Pull-lift 3/4 Tonne in the OHE Maintenance Organization?

    <p>One</p> Signup and view all the answers

    What is the model specification for the Come-along clamps designed for Aluminium conductor?

    <p>20 mm2</p> Signup and view all the answers

    Which item has the highest quantity listed?

    <p>Flood light fitting with 500 Watt Lamps</p> Signup and view all the answers

    How many types of jumpers are mentioned in the content?

    <p>Two types</p> Signup and view all the answers

    What is the specified range of cutting for the Portable Welding-cum-cutting Set?

    <p>1-100 mm</p> Signup and view all the answers

    What type of equipment does the Aluminium straight ladder extensible (11m) belong to?

    <p>Ladders</p> Signup and view all the answers

    How many Portable Electric Drills are listed?

    <p>1</p> Signup and view all the answers

    Which of the following has no specified quantity mentioned?

    <p>Hydraulic Compressor for return conductor splicing</p> Signup and view all the answers

    Which equipment is specifically mentioned for drilling rails for bonding?

    <p>Portable Electric Drill</p> Signup and view all the answers

    What is the maximum load capacity of the Honda Welding Generating Set?

    <p>200 A</p> Signup and view all the answers

    Which item is commonly used for providing light in outdoor settings?

    <p>Flood light fitting with 500 Watt Lamps</p> Signup and view all the answers

    How many types of voltmeters are included in the equipment list?

    <p>2</p> Signup and view all the answers

    Which of the following equipment is intended for measuring inductance?

    <p>R-L-C Bridge</p> Signup and view all the answers

    In the furniture supplied by R.E. for the OHE and PSI, which item has the least quantity for the AEE?

    <p>Supervisor Table</p> Signup and view all the answers

    What is the total number of chairs provided with hands for OHE?

    <p>7</p> Signup and view all the answers

    Which type of testing equipment has the same quantity listed for both OHE and PSI?

    <p>File racks</p> Signup and view all the answers

    What is the specified capacity range for the Portable Welding-cum-cutting Set?

    <p>Welding 0.5 to 30 mm, Cutting 1-100 mm</p> Signup and view all the answers

    Which item is designed for splicing conductors with a specific function?

    <p>Hydraulic Compressor</p> Signup and view all the answers

    How many Flood light fittings with 500 Watt lamps are listed?

    <p>4</p> Signup and view all the answers

    What type of ladder is listed as extensible?

    <p>Aluminium straight ladder (11m)</p> Signup and view all the answers

    What is the total number of items corresponding to 'Rail jumpers'?

    <p>30</p> Signup and view all the answers

    What is the maximum specified length of the Aluminium straight ladder?

    <p>11m</p> Signup and view all the answers

    What device is recommended for carrying out welding tasks?

    <p>Honda Welding Generating Set</p> Signup and view all the answers

    Which of the following has a specified capacity of 2 liters?

    <p>First Aid Box</p> Signup and view all the answers

    Which item is designed for drilling with a specific diameter?

    <p>Portable Electric Drill 21.0 mm</p> Signup and view all the answers

    What is the minimum total equipped track kilometers typically assigned for maintenance to a single OHE depot?

    <p>150 track kilometers</p> Signup and view all the answers

    Which of the following factors is NOT considered when optimizing the location and spacing of OHE maintenance depots?

    <p>Terrain type of the area</p> Signup and view all the answers

    How does the spacing of OHE maintenance depots change when they are near terminal or major yards?

    <p>Spacing decreases due to large volumes of wired Tkm</p> Signup and view all the answers

    What is the relationship between staff requirement for OHE maintenance and the number of OHE depots?

    <p>Staff requirement is determined independently of the number of depots</p> Signup and view all the answers

    For a normal double line section, what is the recommended spacing of OHE maintenance depots?

    <p>60 RKMs</p> Signup and view all the answers

    What factors influence the total staff required for OHE maintenance?

    <p>Maintenance schedules and existing yard sticks</p> Signup and view all the answers

    What is the general purpose of optimizing the number of OHE maintenance depots?

    <p>To minimize capital and recurring costs</p> Signup and view all the answers

    Which item has the highest individual quantity listed?

    <p>Fire buckets</p> Signup and view all the answers

    Which of the following tools is specifically used for connecting wires in electrical work?

    <p>Crimping tool upto 6 mm2 size</p> Signup and view all the answers

    What is the maximum load capacity of the Chain pulley block listed?

    <p>3 tonnes</p> Signup and view all the answers

    Which type of ladder is designed for maximum reach with additional hook support?

    <p>Aluminium ladder with hook on top 8’</p> Signup and view all the answers

    How many sets of 'D' Shackles are listed?

    <p>3 sets</p> Signup and view all the answers

    Which of the following tools is NOT a type of ladder included in the inventory?

    <p>Magic Pole ladder 10’</p> Signup and view all the answers

    Which item is used for assisting in lifting and pulling heavy loads?

    <p>Chain pulley block</p> Signup and view all the answers

    Which piece of equipment can test insulation at a voltage level of 5 kV?

    <p>Mains operated insulation tester 5 kV</p> Signup and view all the answers

    What is the capacity of the Portable diesel engine operated welding set?

    <p>230V</p> Signup and view all the answers

    Which item listed can create high heat required for metal joining?

    <p>Portable Welding-cum-cutting Set</p> Signup and view all the answers

    What is the primary function of the insulation tester mentioned in the content?

    <p>Test the insulation resistance of electrical equipment</p> Signup and view all the answers

    Which tool is specifically designed for cutting materials like a 75 mm channel?

    <p>Motor driven hacksaw cutting machine</p> Signup and view all the answers

    What is the power capacity of the three-phase welding plant listed in the equipment?

    <p>400 Amps</p> Signup and view all the answers

    In terms of safety, which item is used to extinguish industrial fires effectively?

    <p>Portable Fire extinguisher (Cap. 10 ltr) Dry Chemical Powder</p> Signup and view all the answers

    What is the purpose of the hydraulic compressor as mentioned in the list?

    <p>For hydraulic operations in conductor splicing</p> Signup and view all the answers

    Which equipment would be used for shaping or finishing metals after they have been cut?

    <p>Bench Grinder</p> Signup and view all the answers

    What type of testing is the megger primarily used for according to the listed equipment?

    <p>Insulation testing of wires</p> Signup and view all the answers

    Which of the following tools is essential for cutting the toughest metals on-site?

    <p>Portable Welding-cum-cutting Set</p> Signup and view all the answers

    Which item from the list is integral for conducting electrical insulation tests at 250 V?

    <p>Insulation tester 250 V</p> Signup and view all the answers

    Study Notes

    OHE Maintenance Depots

    • Minimum capital and recurring costs are prioritized for electric traction, optimizing the number of OHE maintenance depots.
    • Location and spacing of depots depend on factors like:
      • Total equipped track kilometers per depot.
      • Area covered by the depot (beat).
      • Traffic density and time to reach the farthest point on the section.
      • Proximity to major yards and supporting infrastructure (medical, educational).
    • Staff required for OHE maintenance is calculated based on maintenance schedules and yard sticks. Maintenance requirements are not directly linked to the number of depots.
    • Normal depot spacing is ~60 RKMs (Electrical Equated Track km) on double-line sections. This spacing might reduce near terminals/major yards.
    • Depot beat should ideally not exceed four block sections to allow quick response to breakdowns.
    • Depot location should have suitable provisions for staff accommodations (educational/ medical facilities).

    PSI Maintenance Depots

    • PSI depots manage power supply equipment like traction substations, switching stations, & transformers.
    • Optimal location is often done in conjunction with OHE depots for cost efficiency and facilities sharing.
    • Normally, PSI depot spacing is 60-70 km (routes with medium traffic) and 40-45 (high traffic). Each depot is responsible for one or two traction sub-stations, and 5-6 switching stations.
    • If a Zonal Repair Shop exists, PSI equipment transport may be unnecessary. Maintenance can occur on-site (but major repairs still go to the repair shop).
    • Combination of OHE and PSI depots reduces costs with shared grounds and security. Shared supervision improves collaboration and rapid response to breakdowns. The ideal location for PSI depots should be close to OHE depots when possible.

    Scale of Transport (T&P) and Equipment for Maintenance

    • Equipment and transport requirements are detailed in Annexures A6.01-A6.06.
    • Annexures outline recommended T&P for OHE and PSI depots, division repair shops. These include items for equipping tower wagons and breakdown trains.
    • T&P lists vary depending on specific departmental needs (field offices and depots).
    • General and user items may be procured by the open line rather than the organization.

    Transport Facilities for Maintenance

    • Each major OHE depot is typically supplied with a heavy-duty truck and an inspection car.
    • A breakdown train, (wiring-cum breakdown train), is provided per division to handle major OHE breakdowns requiring wiring.
    • For normal maintenance and supervisor inspections. A push trolley is provided per depot. A Jeep with a trailer is provided to each field officer.
    • Areas with higher traffic density may use 8-wheeler vehicles for rapid equipment and personnel transport for OHE emergencies.

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    Related Documents

    OHE Maintenance Depots Guidelines PDF

    Description

    This quiz explores the key factors influencing the location and efficiency of OHE maintenance depots for electric traction. It covers considerations like spacing, proximity to major yards, and staff requirements essential for optimal operations. Test your understanding of maintenance strategies and operational logistics in electric railway systems.

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