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Blog Entry# 4639348
Posted: May 28 2020 (19:23)

8 Responses
Last Response: Jul 02 2020 (15:14)
Rail Fanning
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7

May 28 2020 (19:23)  
EMDGT46PAC^~
EMDGT46PAC^~   12014 blog posts
Entry# 4639348               Past Edits
A weird situation.
EMDs aren't allowed in the Pamban Bridge.But,how's WDG-3A allowed?I just went through the mass of locos in a detailed chart available at IRFCA,the mass of WDG-3As is 123 tons,whereas the mass of WDP-4 is 119 tons and WDP-4B is 121.2 tons!Also checked whether WDG-3As haul only short rakes in the section,instead it actually is a link of the full 23 coacher Sethu Express and many other trains that is from the Rameswaram Island!
Is there any reason behind this?People who know this please put light on this :)
Thanks
...
more...
in advance.
Edit:Even though T.E. is a concern,the T.E. of WDG-3A is actually more than all the WDP-4 class locomotives.The T.E. of WDG-3A is 40 ton which is 39600 kg,and the WDP-4B/4D has 39180 kg T.E.
The height of WDG-3A according to an IR document which I got is 4326 mm and the WDP-4/4B are 4264 mm and WDP-4D at 4211.6 mm.

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May 29 2020 (19:19)
TheMadrasMail~
TheMadrasMail~   6349 blog posts
Re# 4639348-8              
I believe the EMDs do not meet the required clearance (height, width etc) for the Scherzer lifting span. For that reason, they may not be allowed onto the bridge.

Let me find out more about this.
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May 29 2020 (19:39)
EMDGT46PAC^~
EMDGT46PAC^~   12014 blog posts
Re# 4639348-9              
Sir,but the height of EMDs is less than WDG-3A
click here -Heights of locos official IR document.
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May 29 2020 (20:12)
EMDGT46PAC^~
EMDGT46PAC^~   12014 blog posts
Re# 4639348-10              
It seems like Width has been the issue,WDG-3A has 3016 mm width,WDP-4D has 3062 mm width.But it is just 6 cm extra sir,is that 6 cm the deciding factor?
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Jul 02 2020 (15:14)
EMDGT46PAC^~
EMDGT46PAC^~   12014 blog posts
Re# 4639348-11               Past Edits
Sir I got info from a SSE who works in GOC DLS,he told that the idling speed of EMDs is 20 and it's risky to try to idle it at a speed less than 20.And he said that the exhausts in GOC WDP-3As are all modified in order to run in the bridge as once an exhaust hit the bridge and they had to replace it.Also he told the LHF of EMDs is also a problem due to the less visibility which is dangerous in that bridge.
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