CLEARANCE STUDY FOR DFC FOR TRACTION OVERHEAD INSTALLATIONS.

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• CLEARANCE STUDY FOR DFC FOR TRACTION OVERHEAD
  INSTALLATIONS.

PRESENTATION BY RE DIRECTORATE
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POLICY GUIDELINES ISSUED FOR DOUBLE STACK
CONTAINERS

• SALIENT PARAMETERS INVOLVED
• MINIMUM HEIGHT OF HEAVY /LIGHT OVERLINE STRUCTURE
• MINIMUM HEIGHT OF CONTACT WIRE
• POWER LINE CROSSINGS

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DOUBLE STACK CONTAINER MOVEMENT ON FREIGHT
CORRIDOR UNDER WIRE (Vertical Profile Scheduling)
Min. Fixed Dim. 7760/8140 mm
250/630mm
Height of CAT 7507 mm


Height of CONT 7079 mm
270 mm
Max. Mov. Dim. 6809 mm
RAIL LEVEL 0 mm
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COMPARATIVE STRUCTURES
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MINIMUM HEIGHT OF OVERLINE STRUCTURE

• LETTER NO. 2006/RE/161/3 DATED 19/5/06
• HEAVY OVERHEAD STRUCTURE ie ROB 7760mm
• BASIS
• HEIGHT OF CONTACT WIRE - 680925020
  7079 mm
• HEIGHT OF CATENARY -
  707911417 7507 mm
• MIN.HEIGHT OF HEAVY OVERLINE STRUCTURE
• 
  75072507757 SAY 7760 mm

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MINIMUM VERTICAL CLEARANCE OF LIGHT OVERHEAD
STRUCTURE

• REF. LETTER NO. 2006/RE/161/3 DATED 19/5/06( REF.
  ITEM NO. 10(iii)(a) OF REV SOD 2004)
• MIN HEIGHT OF LIGHT OVERLINE STRUCTURE
• eg FOB 8140
• BASIS
• HEIGHT OF LIGHT STRUCTURE 7760380 8140mm

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MINIMUM HEIGHT OF CONTACT WIRE

• BASIS
• MINIMUM HEIGHT OF DOUBLE STACK CONTAINOR LOADED
• ON FLAT WAGON -
  6809 mm
• LONG TIME CLEARANCE - 250
  mm
• ALLOWANCE FOR TRACK RAISING - 20 mm
• 
  7079 mm
• 
  
  

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POWER LINE CROSSINGS

• LETTER NO. 2006/RE/161/1 PT. III DATED 19.05.06
  STIPULATES VERTICAL CLEARANCES FOR POWER LINE
  CROSSINGS OF RAILWAY TRACKS

Voltage Existing Clearance New Clearance New Clearance
Voltage Existing Clearance At Mid span At Fixed Structures
33 KV 14.1 m 13.1 m 16.4 m
66 KV 14.1m 13.1 m 16.7 m
132 KV 14.6m 13.7m 17.3 m
220 KV 15.4m 153 m 18.2 m
400 KV 17.9m 16.2m 20.0 m
500 KV 19.3m 18.66m 20.9 m
800 KV 23.4m 18.66m 23.61 m
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THANK YOU
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DOES IT EXIST ANYWHERE ELSE ?

• CHINA
• Shanghai Kunminng Corridor
• Hangzhou Zhuzhou section
• (Liujhan-Jhegan sub-section) ( 2nd National
  Project)