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LETTER NO.
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DESCRIPTION
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DATE OF ISSUE
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Track/21/2007/0110/AT Welding |
The target date of implementation of AT Welding with single shot crucible has been extended upto 01.02.2016.
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01.10.2015 |
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Track/21/2009/0110/7 |
Authorised CAO (Con) to approve SKV AT Welding of 10/20 Rail Panels in Construction projects.
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05.05.2015 |
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Track/21/2007/0110/AT Welding
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All tenders of AT Welding shall be only with single shot crucible after 01.04.2015. (The use of multi-shot crucible in A.T. Welding after 01.04.2015 has to be discontinued and will be permitted only as an exception.)
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02.04.2014
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Track/21/2007/0110/AT Welding |
Implementation of AT Welding with Automatic Thimble Technology on IR. |
01.11.2-12 |
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Track/21/2007/0110/AT Welding
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All tenders from 01.01.12 onwards for AT Welding by zonal railways should invariably be invited with Auto tapping thimble technology.
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06.04.2011
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Track/21/2009/0110/7
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1. Initial track laying for all new line projects should be carried out by using S/H single rails which should be replaced subsequently by 10/20 rail panels and should be implemented w.e.f 01.04.12 without any exception.
2. Use of AT welding in construction projects should be minimized to the extent possible. Not a single AT weld without PCEs approval.
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04.08.2011
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