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  • Basic Concepts of Railway Signalling
    • Types of Signals
    • Basic Track Structure Point & Crossing
    • Railways Gate Signal | Routing Indicator | Junction type route indicator | Multi lamp route indicator
    • Railways Subsidiary Signals | Shunt signal | Calling-on signal
    • Markers & boards | Shunting Limit Board |  Block Section Limit Board | Outlying Siding
    • Concept of Overlap and Isolation | Overlaps | Block Over Lap (BOL) | Signal Over Lap (SOL)
    • Railways Signalling Cables | Indoor cables | Outdoor cables | Power cables
    • Railway Isolation I Rules regarding isolation | Methods of Isolation
    • Railways Signalling Slip Siding & Catch Siding
    • How to make Railway Signalling Plan
    • Railway Signalling alphabets Abbreviations Equipment
    • Railways Subsidiary Signals
    • Shunt signal
    • Calling-on signal
    • Railways Signalling Relays
    • Railway Signals Location | Home Signal | Distant Signal | Routing Signal | Starter Signal | Advanced Starter
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Tag: pqwl meaning railway

Left-hand Turnout, Double Ended, WL At Both Ends

Railway WL Control

February 4, 2022June 8, 2022adminLeave a Comment on Railway WL Control

Railway WL Control Railway WL Control :- Contact number one on the open switch is used to control the de-energising of the WL in the same way that the AN & BR contacts are used on a set of Four Foots points. In the Normal position (Fig 5.7) the L.H. WL is locking the points. […]

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  • Basic Concepts of Railway Signalling
    • Types of Signals
    • Basic Track Structure Point & Crossing
    • Railways Gate Signal | Routing Indicator | Junction type route indicator | Multi lamp route indicator
    • Railways Subsidiary Signals | Shunt signal | Calling-on signal
    • Markers & boards | Shunting Limit Board |  Block Section Limit Board | Outlying Siding
    • Concept of Overlap and Isolation | Overlaps | Block Over Lap (BOL) | Signal Over Lap (SOL)
    • Railways Signalling Cables | Indoor cables | Outdoor cables | Power cables
    • Railway Isolation I Rules regarding isolation | Methods of Isolation
    • Railways Signalling Slip Siding & Catch Siding
    • How to make Railway Signalling Plan
    • Railway Signalling alphabets Abbreviations Equipment
    • Railways Subsidiary Signals
    • Shunt signal
    • Calling-on signal
    • Railways Signalling Relays
    • Railway Signals Location | Home Signal | Distant Signal | Routing Signal | Starter Signal | Advanced Starter
  • Presentation
  • Indian Railway Signalling
  • Network Rail
  • Metro Rail General Rules
  • Privacy Policy
    • About