Kolkata Metro is set to join the elite Metro systems of London, Moscow, Berlin,
\nMunich and Istanbul which have composite aluminium third rail instead of
\nthose made of steel. Third rail is live rail that provides electric power to a train
\nthrough a conductor placed alongside the rails.<\/p>\n
Kolkata Metro Railway has now decided to use composite aluminium third rail
\nin all the upcoming corridors being undertaken for construction along with retro
\nfitment in existing corridor with steel third rail.<\/p>\n
Kolkata Metro has floated a tender for the replacement of the existing third rail
\nto cover the section between the Dumdum and Shyambazar stations in the first
\nphase. In the second phase, work would be taken up from Shyambazar to
\nCentral and J D Park to Tollygunge. In the third phase, the section between the
\nMahanayak Uttam Kumar (Tollygunge) and Kavi Subhash (New Garia) stations
\nwill be taken up.<\/p>\n
The advantage of aluminium composite third rail over steel third rail is that
\nthere will be a reduction in the resistive current loss and an improved traction
\nvoltage level as the resistance of steel third rail is around six times higher than
\ncomposite aluminium third rail.<\/p>\n
On an average, for a 10 km corridor with the use of aluminium composite third
\nrail would require one less traction sub-station compared to steel third rail — a
\nstraight saving of approximately INR 210 crore capital investment for 35 km of
\nthe Metro corridor. The use of composite aluminium will also reduce the
\nmaintenance and lifecycle cost. The energy saving using composite aluminium
\nthird rail may be approximately 6.7 million (67 lakh) units per annum.<\/p>\n","protected":false},"excerpt":{"rendered":"
Kolkata Metro is set to join the elite Metro systems of London, Moscow, Berlin, Munich and Istanbul which have composite aluminium third rail instead of<\/p>\n","protected":false},"author":1,"featured_media":4720,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[181,172],"tags":[],"class_list":["post-4719","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rail-ways","category-transportation"],"_links":{"self":[{"href":"https:\/\/livzzy.in\/index.php?rest_route=\/wp\/v2\/posts\/4719","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/livzzy.in\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/livzzy.in\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/livzzy.in\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/livzzy.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4719"}],"version-history":[{"count":0,"href":"https:\/\/livzzy.in\/index.php?rest_route=\/wp\/v2\/posts\/4719\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/livzzy.in\/index.php?rest_route=\/"}],"wp:attachment":[{"href":"https:\/\/livzzy.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/livzzy.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/livzzy.in\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}