What is throw of switch in railway?
What is throw of switch in railway?
Explanation. Throw of switch: (i) It is the distance between the running face of the stock rail and the toe of the tongue rail. (ii) Its limiting values are 95-115 mm for BG routes and 89-100 mm for MG routes.
What are the different types of switches and crossing?
Different Types of Rail Switches And Their Features
- Single Rail Switch. The main track of single rail switch is straight line, the siding bifurcates from main track to left or right side.
- Driving Rail Switch.
- Equilateral Rail Switch.
- Three-way Rail Switch.
- Rail Switches Summary.
How many types of railway crossings are there?
Acute angle or V-crossing or Frog. Obtuse angle or Diamond crossing. On the basis of assembly of crossing. Ramped crossing.
What is crossing in railway?
• Crossing: – A crossing is a device introduced at the junction where two rails cross each other to permit the wheel flange of a railway vehicle to pass from one track to another.
What is throw of switch?
Switches in Electrical Circuits: Pole & Throw “Pole” indicates the number of circuits that one switch can control for one operation of the switch. “Throw” indicates the number of contact points. NO and NC contacts are single throw.
What does it mean to throw a switch?
From Longman Dictionary of Contemporary English throw a switch/handle/leverSWITCH ON OR OFFto make something start or stop working by moving a control He threw a switch and the lights all went out.
How many types of railway crossing are there?
1 Types of Crossings Thus, unlike rail crossings form an acute crossing (A and C of Fig. 15.9). (b) An obtuse or diamond crossing in which the two gauge faces meet at an obtuse angle. When a right or left rail crosses a similar rail, it makes an obtuse crossing (B and D of Fig.
What is LC sheet in railway?
letter of credit (LC) – mode of payment as an option in supply/works contracts to improve transparency and the ease of doing business.
https://www.youtube.com/watch?v=rCY2u6rYtY0
