Computer Studies IRSOD_ACS_10.pdf

B in cases where it is proposed to allow only

Info icon This preview shows pages 7–9. Sign up to view the full content.

(b) In cases, where it is proposed to allow only locomotive or rolling stocks not higher than 4.27m, the minimum height of contact wire, specified under Item 2(i) above may be reduced to 4.54 metre. A board showing this restriction and specifying “locomotives or stocks not permitted to ply on such section”, shall be exhibited at the entrance to the same. (c) For movement of Over Dimensional Consignments, the height specified under Item 2(i) above shall be increased by the difference between the height of the consignment contemplated and 4.42m. In case, such an Over Dimensional Consignment is moved at speed not exceeding 15kmph and is also specially escorted by authorized Railway Staff, the derived height of Contact Wire may be reduced by 50mm. (d) On curves, all vertical distances specified in Item (2) above, shall be measured above the level of the inner rail, increased by half the super-elevation. (e) Suitable prescribed gradient on the height of contact wire shall be provided for connecting these wires installed at different heights.
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Addendum & Corrigendum Slip (ACS) No. 10 To Indian Railways Schedule Of Dimensions (B.G.) 2004 Railway Board’s letter no. 2011/CEDO/SD/IRSOD/Elect./02, Dated 08.11.12 Page 7 of 9 3. Maximum variation in alignment of the live conductor wire on either side of the centre line of track under static condition : (i) On straight track : 200 mm (ii) On curves : 300 mm Note : These limits would not apply to special locations, e.g. insulated overlaps and out of run wires. [There is no change in this Para w.r.t. the existing provisions of IRSOD 2004] 4. (i) Maximum width of Pantograph Collector : 1800 mm (ii) When DC traction is converted to 25 kV AC traction, width of Pantograph Collector {subject to it being within the approved MMD} : 2030 mm Note : A tolerance of plus 10mm on maximum width specified is permissible to accommodate variation in manufacture and mounting with respect to centre line of vehicle. 5. In the case of light structures such as foot-over bridges, it would be desirable to keep a standard height of contact wire of 5.50m. In case of heavy structures, such as flyover bridges or road over bridges, it is desirable to keep the height of contact wire as low as possible, consistent with the requirements of movement of Standard Class ‘C’ Over-Dimensional Consignments of height 4.80m. [There is no change in this Para w.r.t. the existing provisions of IRSOD 2004] VI. Amendment To APPENDIX ‘A’ TO CHAPTER V-A : Clearances Required For 25 kV, Single Phase, AC-Electric Traction {At Page – 38 Of IRSOD 2004 And Subsequently Revised Vide ACS No. 7} [Only Para 2 & 4 are modified and remaining Para 1, 3 & 5 are unchanged] 1. It is desirable to provide the maximum possible clearances in the case of lines equipped for 25 kV AC 50 cycle single phase electric traction. Minimum Clearances between live bare conductors / pantographs and structure – (a) Short Term Clearances - Vertical and lateral distance between live conductors and earth (normally existing only for a brief period) : 200mm (b) Long Term Clearance - Vertical and lateral distance between live
Image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.
  • Fall '18
  • William
  • Rail transport, Light Rail, contact wire, Railway Board, IRSOD

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern