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'l{ffif m<ilN (GOVERNMENT OF lNDIA - -t<'f ~ (MINISTRY OF RAILWAYS) ~ )

~ OJM(RAILWAY BOARD)

'1o.2000/RE/161/I/Pt-III(ACTM) ~~, fil"o, 18.09.2006

The General Manager (Elec)All Indian Railways includingMetro Railway/Kolkata.CORE/Aliahabad, ICF, Chennai,CLW, Chittaninjan, RCF KapurthalaThe Chief Administrative Officer,Metro Railway at Delhi, Mumbai and Chermai.Director, IRIEEN, Nasik and Director, Indian Railway Centre for AdvanceMaintenanceTechnology, Gwalior.Principal, Railway Staff College, VadodaraThe Director General, (TIIElectrical Standard siPS & EMU), RDSO/ LucknowChief Commissioner of Railway Safety, Lucknow,CRSlNorthern Circle/Central Circle/Eastern Circle/Southern CircletSouth Central Circle/South Eastern Circle/Western Circle.MD, RVNL, Aurobindo Marg, Safdarjung Development Area, New Delhi.

Sub: Advance Correction Slip No. 16 to Railways Manual of AC Traction(ACTM) VoUI Pt.Il, Appendix IV, 1994 (Regulations for Power Linecrossings of Railway Tracks).

Ref: (i) GM/CORE's DO No.ELCORE/ACTM dated 25.08.2006(ii) S.Rly's letter No.E31/P dated 06.09.2006

On the recommendations of OM/CORE and Southern Railway, Advance Correction SlipNo.1 6 incorporating the following addendum/corrigendum of ACTM is issued -

(i) Addendum/Corrigendum to Clause 17.3 updated by AC Slip NO.IS of ACTM, VoLII,Part. II, Appendix-lv- (Regulations for Power Li~e Crossings for Railway Tracks-1987) modifying the vertical clearances for conventional routes and incorporating therequirement for double stack container routes. The Table in Clause 17.3 of ACTMVoLII, Part.lI, shall be replaced by the table of Correction Slip No.16 and the Note (i),(ii), (iii), (iv), (v), (vi) (vii) (viii) of ACS-IS remain unchanged arid Note (ix) has beenexpanded,

(ii) Clause 2J.0~ deleted by AC Slip No.IS of ACTM issued vide Board's letterNo.2000/RE/161/1/Pt.l1I (ACTM) dated 24.0S.2006 has been reintroduced withmodification.

Receipt of the letter may please be acknowledged.

Hindi Version will follow.

{~~~k~_(A.K. Dutta)

Executive Director/Railway ElectrificationRailway Board

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Indian Railways Manual of AC Traction Volume 1I Pt. II1994 Edition, Appendix-IV

Advance Correction Slip No.16 dated September, 2006

L Clause 17.3 (ACTM VoLII, Part.II), Appendix-IV (Regulations for Power LineCrossings of Railway Tracks 1987) to be replaced as under:

1.3 Vertical Clearance: The minimum height above rail level of the lowest portion of anyconductor of crossing, including guard wire, under conditions of maximum sag shall beas follows:

VERTICAL CLEARANCES FOR POWER LINE CROSSINGS OF RAILWAY TRACKS

Minimum Clearances required for 25 kV AC traction

clearances. Min. Clearance Minimum clearancesOn non- between highest required from rail level Clearances for double stack

Overhead electrified traction (clearances as per I.E. container ( Stock height 68098.N crossing. routes from conductor & Rule 1956) mm)

voltage rail level (as lowest crossingAt fixed At mid span At fixed At mid spanconductor (asper.J.E Rule per J.E Rule structure (CI.87) structure (CI.80) (CJ.87)

1956,CI. 80) 1956) (CI.80)1 2 3 4 5 6 7 81 Upto& ByCABLE

inclg.llkV2 Up to 33 kV 10860 2440 15010 11763. 16410 131633 Above 33 & 11160 2440 15310 11763 16710 13163

upto 66 kV4 Above 66 & 11760 3050 15910 12370 17310 13770

upto \32 kY

5 Above 132kV 12660 4580 16810 13900 18210 15300& upto 220 kV

6' Above 220 KV 14460 5490 18610 14810 20010 16210& upto 400 kV

7 Above 400 kV 15360 7940 19510 17260 20910 18663& upto 500 kV

8 Above 500 kV 18060 7940, 22210 17260 23610 18663& uoto 800 kV ~

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Note: (I), (ii) and (iii) will remain the same.

(a) (iv) AU heights/clearances are in mm and under maximum sag conditions.

(v) If super mast on fixed structurel mast is to be provided, the height of power line crossing to beraised accordingly.

(vi) If the crossing is provided with a guarding, a minimum clearance of 2000 mm shall bemaintained between the bottom of the guard wire and highest traction conductor.

(vii) Clearance "at fixed structu;e" are to adopted if the OHE structurelfixed structureis within 6000 mrrrof nearest conductor of overhead crossing

(viii) Power line crossings in yard shall be avoided.

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(ix) For double stack coritainer routes, the clearances for electrified/non-electrified willremain the same. The clearances stipulated in Col.7 & 8 are with eference to 9Yz ft. heightcontainer double stacked on BLCA wagons of floor height of I 009 mrn above rail level.

(b) In case of existing crossings a special clearance study shall be made as indicated in Clause21.1 of ACTM to be reintroduced as under: ~

Clause 21.1(revised)

Clause 21.2(Revised)

Clause 21.3(Revised)

CIa use 21.4(He vised)

Clause 21.5

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'-It is desirable to provide maximum possible clearances in the case ofpower line from the highest traction conductor used for electric traction.Based on the clearance study, reduced clearances, with approval of ErG,and subject to observance of clearances in Column 4 of Table in Para 17.3may be adopted.

4Such reduced clearances would be subject to any special safeguards thatmay be prescribed by EIG while granting these relaxations.

Wherever feasible, special design of tr'J,ction overhead equipment, returnconductor, 2S kY feeder or other power line on traction mast/structureshould be developed keeping in view the" need for economy and otherrequirements, if any.

lf nflcr special clcuruncc Sillily of'cxisling crosxing, the power line crossingis to be modified, the SUllie shull be dune to provide the cleuruncesprescribed in columns S, 6, 7 & 8 as the case may be.

The relaxation to adopt reduced clearances shall not be applicable for newpower line crossings .

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