Cable Route Planning and Management

The cable route plan.

Low lying areas, rocky terrains, and proximity to Electrical Sub Stations.

To ensure proper routing and protection of cables within the tunnel.

<p>Cable drums should not be stacked on flat side and suitable stoppers must be used.</p> Signup and view all the answers

<p>In the direction of the 'arrow' marked on the drum.</p> Signup and view all the answers

<p>Seal the ends with an end cap or in an approved manner.</p> Signup and view all the answers

<p>Labourers should carry the cable at suitable intervals.</p> Signup and view all the answers

<p>In a covered shed to protect against direct sun exposure.</p> Signup and view all the answers

<p>A visual inspection for damage, insulation testing, and continuity of the cores should be checked.</p> Signup and view all the answers

<p>The drum should be mounted on an axle at one end of the trench, and the cable should be paid out and carried by labourers.</p> Signup and view all the answers

<p>The drum must not be rolled off onto the road, nor should the cable be dragged on the ground.</p> Signup and view all the answers

<p>A trained operator should use the equipment under the supervision of SSE/JE(Signal).</p> Signup and view all the answers

<p>The cable may be placed on a horizontal revolving platform and paid out similarly as previously described.</p> Signup and view all the answers

<p>The minimum width of the cable trenches should be 0.3 meters.</p> Signup and view all the answers

<p>The cable should be laid on a layer of sand or sifted earth of 0.05 meters thickness.</p> Signup and view all the answers

<p>The cable should be covered with a layer of sand or sifted earth of 0.10 meters thickness and then a protective cover.</p> Signup and view all the answers

<p>All boulders with sharp edges should be removed from the bottom of the trench.</p> Signup and view all the answers

<p>The cable should be paid out by rotating the cable drum, not by pulling with excessive force.</p> Signup and view all the answers

<p>The conductors should be shorted or earthed to discharge any accumulated electrostatic charge.</p> Signup and view all the answers

<p>Insulation tests should be performed once every three years, or annually if monitored through ELD.</p> Signup and view all the answers

<p>The cause of the sudden drop should be investigated, and immediate repairs or cable replacements should be made.</p> Signup and view all the answers

<p>Random insulation tests in wet weather may be conducted to localize sudden deterioration.</p> Signup and view all the answers

<p>They should be kept clean and dry, with frequent inspections for moisture leaks.</p> Signup and view all the answers

<p>Horizontal directional drilling.</p> Signup and view all the answers

<p>Cable markers of approved type must be provided at suitable intervals and diversion points.</p> Signup and view all the answers

<p>Cables should be firmly held with a suitable clamping arrangement to avoid downward displacement.</p> Signup and view all the answers

<p>Protective measures as shown in Drg.No.15-D2 shall be taken.</p> Signup and view all the answers

<p>Sharp cable bends can cause stress on the cable, potentially leading to damage or failure.</p> Signup and view all the answers

<p>1.0 meters from the top of the cables to the ground level.</p> Signup and view all the answers

<p>Special precautions as detailed in a joint circular should be followed.</p> Signup and view all the answers

<p>Cables should cross the track at right angles.</p> Signup and view all the answers

<p>No less than 0.50 meters.</p> Signup and view all the answers

<p>Cables should be laid in concrete, GI, DWC-HDPE pipes, or other approved methods.</p> Signup and view all the answers

<p>Half Cut DWC-HDPE pipe or approved types of ducts/pipes.</p> Signup and view all the answers

<p>The horizontal directional drilling method may be used where feasible.</p> Signup and view all the answers

<p>Cables should be placed inside a metallic trough or GI pipe, filled with a sealing compound to deter theft.</p> Signup and view all the answers

<p>1.2 meters with anchoring at every 10 meters.</p> Signup and view all the answers

<p>Cables belonging to other departments must not be laid in the same trench.</p> Signup and view all the answers

<p>Trenches should not be excavated in long lengths or left uncovered for extended periods.</p> Signup and view all the answers

<p>Ducts should be designed to prevent/minimize damages from future digging.</p> Signup and view all the answers

<p>Soil should be thrown by the side of the trenches, away from the track.</p> Signup and view all the answers

<p>They ensure safety during trenching or any other works near running trains.</p> Signup and view all the answers

<p>Adequate cable length of 2 to 3 meters should be available.</p> Signup and view all the answers

<p>Trenching must be done with precautions to ensure the safety of running trains and to follow specific rules governing machinery work along the track.</p> Signup and view all the answers

<p>Protective measures as outlined in Drg.No.15-D2 should be implemented.</p> Signup and view all the answers

<p>Cables should normally be buried at a depth of 1.0 meters from the top of the cables to ground level.</p> Signup and view all the answers

<p>These materials provide protection for the cables against potential damages from external factors.</p> Signup and view all the answers

<p>In theft-prone areas, cables should be laid at a depth of 1.2 meters with anchoring at every 10 meters.</p> Signup and view all the answers

<p>Cables belonging to other departments must not be laid in the same trench as Signal &amp; Telecommunication cables.</p> Signup and view all the answers

<p>Cables may need to be laid at a depth of 1.2 meters to reduce theft susceptibility.</p> Signup and view all the answers

<p>Ducts should be designed to minimize damage risk and include suitable covers to prevent water accumulation.</p> Signup and view all the answers

<p>Special precautions must be followed where multiple utilities exist, as detailed in a joint circular.</p> Signup and view all the answers

<p>It is essential to verify that the trench complies with specified dimensions and safety regulations.</p> Signup and view all the answers

<p>Proximity to electrical substations and unsuitable terrains like low lying areas and rocky terrains should be avoided.</p> Signup and view all the answers

<p>Cable drums should not be stacked on their flat side and should have access for lifting and moving.</p> Signup and view all the answers

<p>The cable drums should be mounted on cable wheels to facilitate smooth unwinding without kinks.</p> Signup and view all the answers

<p>The provision of a cable duct should be an integral part of the tunnel design.</p> Signup and view all the answers

<p>Cables should not be dropped directly to the ground; a forklift or ramp must be used for unloading.</p> Signup and view all the answers

<p>A group of laborers should carry cable at intervals to prevent dragging that could damage it.</p> Signup and view all the answers

<p>The ends of the cables should be effectively sealed with end caps or approved methods.</p> Signup and view all the answers

<p>Cables should avoid sharp objects or edges to prevent damage to the protective layers.</p> Signup and view all the answers

<p>A representative from the signal &amp; telecommunication department must be present, and suitable precautions for the safety of existing cables must be taken.</p> Signup and view all the answers

<p>The insulation resistance of main cables should be tested every 2 years.</p> Signup and view all the answers

<p>The ELD is provided for monitoring safety by detecting ground faults in the signaling system.</p> Signup and view all the answers

<p>Regular inspections of protective works at track crossings, culverts, and bridges should be conducted with special attention after the monsoon.</p> Signup and view all the answers

<p>The first measurement of insulation for all conductors should be carried out after laying the cable and after the first monsoon.</p> Signup and view all the answers

<p>Cables should be firmly held with a suitable clamping arrangement to prevent downward displacement.</p> Signup and view all the answers

<p>A minimum of 3 meters separation must be maintained.</p> Signup and view all the answers

<p>The cable should cross the track at right angles.</p> Signup and view all the answers

<p>Cables should be taken underground across drains at a suitable depth.</p> Signup and view all the answers

<p>The order should be telecommunication cable, signalling cable, and then power cable.</p> Signup and view all the answers

<p>They should be suspended in wooden cleats or from cable hangers to prevent mechanical damage.</p> Signup and view all the answers

<p>Cables should be placed inside a metallic trough or GI pipe filled with a sealing compound.</p> Signup and view all the answers

<p>Cables should be laid at not less than 5.5 meters from the nearest track center.</p> Signup and view all the answers

<p>Soil from excavated trenches should not be thrown on the ballast.</p> Signup and view all the answers

<p>The horizontal directional drilling method is preferred where feasible.</p> Signup and view all the answers

<p>An extra loop length of 6 to 8 meters should be kept.</p> Signup and view all the answers

<p>Excavation should not be done in long lengths or remain uncovered for long periods.</p> Signup and view all the answers

<p>Backfilling of the trenches should be done properly, with the soil consolidated.</p> Signup and view all the answers

<p>Cables should be laid in ducts that are suitably protected.</p> Signup and view all the answers

<p>Appropriate cable markers of an approved type should be provided.</p> Signup and view all the answers

<p>Cables must be in approved ducts or pipes to ensure proper protection and installation.</p> Signup and view all the answers

<p>The cables should be carried in trunking, duct, or pipe below the ballast level.</p> Signup and view all the answers

<p>A cable length of 2 to 3 meters should be provided at the approaches of a bridge.</p> Signup and view all the answers

<p>Cable joints of an approved type should be used.</p> Signup and view all the answers

<p>Cable supports should be spaced adequately to prevent sagging.</p> Signup and view all the answers

<p>A representative from the signal &amp; telecommunication department must be present and suitable precautions for the safety of the cables must be taken.</p> Signup and view all the answers

<p>Main cables should undergo insulation resistance testing every 2 years.</p> Signup and view all the answers

<p>Tail cables should be meggered once a year.</p> Signup and view all the answers

<p>The first measurement of insulation for all conductors must be carried out after laying the cable.</p> Signup and view all the answers

<p>An Earth Leakage Detector (ELD) should be provided and interfaced with a Datalogger for remote monitoring.</p> Signup and view all the answers

<p>A minimum of 20% spare conductors is required.</p> Signup and view all the answers

<p>A foot survey helps in determining the best route for laying cables along the track.</p> Signup and view all the answers

<p>Existing routes of power cables should be charted on the cable route plan.</p> Signup and view all the answers

<p>Auxiliary signals should be taken in different cables to minimize disruption during maintenance.</p> Signup and view all the answers

<p>Circuits should be distributed to allow for disconnection with minimal disruption to traffic.</p> Signup and view all the answers

<p>Approval from the S&amp;T open line is also required.</p> Signup and view all the answers

<p>No spare conductors are required if the total number of conductors used is 3 or less.</p> Signup and view all the answers

<p>The plan should indicate various road and track crossings along with other critical points.</p> Signup and view all the answers

<p>Cables must be laid at least one metre away from the independent Earth.</p> Signup and view all the answers

<p>The use of G.I pipes or any metallic pipes is prohibited within a distance of 300 meters from a feeding post.</p> Signup and view all the answers

<p>Insulation resistance should not be less than 5 mega ohms per km at buried temperature.</p> Signup and view all the answers

<p>A 100 V insulation tester should be used for Quad cables.</p> Signup and view all the answers

<p>The cause should be investigated and immediate steps taken to repair or replace the cable.</p> Signup and view all the answers

<p>Insulation resistance tests should be made when conductors, cables, and insulated parts are clean and dry.</p> Signup and view all the answers

<p>All cores of a cable must be disconnected at both ends before the tests.</p> Signup and view all the answers

<p>A metallic sheath or metal work should be bonded to earth during the test.</p> Signup and view all the answers

<p>The cable trenches should be dug not less than 5.5 meters away from the center of the nearest track.</p> Signup and view all the answers

<p>Cables must be laid at a safe distance from O.H.E structures to avoid interference and ensure safety.</p> Signup and view all the answers

<p>To ensure safety and prevent unsafe conditions.</p> Signup and view all the answers

<p>Once every three years, or annually before the monsoon if monitored through ELD.</p> Signup and view all the answers

<p>To discharge any accumulated electrostatic charge and ensure safety.</p> Signup and view all the answers

<p>Investigation of the cause should be conducted, and steps should be taken to repair or replace the cable.</p> Signup and view all the answers

<p>It indicates the trend towards deterioration of the cable's insulating material.</p> Signup and view all the answers

<p>Once a year.</p> Signup and view all the answers

<p>They should be kept clean and dry, with regular inspections for moisture or water leaks.</p> Signup and view all the answers

<p>Random tests in wet weather to find sudden insulation deterioration.</p> Signup and view all the answers

<p>The results should be documented in an approved proforma.</p> Signup and view all the answers

<p>The issues should be immediately attended to.</p> Signup and view all the answers

<p>The minimum distance is one meter.</p> Signup and view all the answers

<p>A minimum distance of 3 meters from the nearest edge of the O.H.E structure must be maintained.</p> Signup and view all the answers

<p>Cables must be at least one meter away from any metallic part of the O.H.E and laid in concrete or approved ducting for 300 meters on either side.</p> Signup and view all the answers

<p>The cable shall be laid in DWC-HDPE/Concrete ducts for a distance of 3 meters on either side of the mast.</p> Signup and view all the answers

<p>Cables must be laid at least 5 meters away from the station earthing.</p> Signup and view all the answers

<p>An official from the Signal and Telecommunication Department, not below the rank of JE/SSE (Signal), must supervise.</p> Signup and view all the answers

<p>It protects the cables from external damage and ensures safe operation.</p> Signup and view all the answers

<p>The cable should be at least one meter away from the substation earthing.</p> Signup and view all the answers

<p>It ensures that the work is completed with least delay to avoid disruptions.</p> Signup and view all the answers

<p>Digging must be done in the presence of an official from the Engineering Department.</p> Signup and view all the answers