Table of Contents
What is interlocking system in railways?
In railway signalling, an interlocking is an arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such as junctions or crossings. An interlocking is designed so that it is impossible to display a signal to proceed unless the route to be used is proven safe.
What is solid state interlocking system?
Solid State Interlocking (SSI) is the brand name of the first generation processor-based interlocking developed in the 1980s by British Rail’s Research Division, GEC-General Signal and Westinghouse Signals Ltd in the UK.
What is the function of an interlock system?
In most applications, an interlock is used to help prevent a machine from harming its operator or damaging itself by preventing one element from changing state due to the state of another element, and vice versa.
What is an interlocking system and how it works?
The alcohol interlock device measures the electrical current, and figures out how much alcohol had to be in your breath to create that electrical current. If that amount is under the threshold of 0.02 BAC, the device will allow a signal to pass from the ignition to the starter, and the vehicle’s engine will turn on.
What is micro lock in railway?
MicroLok II application concept On any railway system an interlocking system ensures that rail traffic can pass safely along a section of track. The track is monitored for passing traffic and at crossing points; this information is then used to control signalling.
What is interlock process?
Process Interlock : Something that prevents incorrect operation or possible damage to the process or equipment. Safety Interlock : Something that prevents possible damage or death to people operating that process or equipment.
What is interlocking standard?
Standard I and II stations usually have only one signal cabin. A Standard III interlocked station has points and signals that are either interconnected mechanically within the same mechanism, or electrically as with route-relay and panel interlocking. These are usually stations on trunk routes.
What is panel interlocking?
Panel Interlocking (PI) is the system used in most medium-sized stations on IR. In this, the points and signals are worked by individual switches that control them. Route Relay Interlocking (RRI) is the system used in large and busy stations that have to handle high volumes of train movements.
What is mechanical interlocking?
In the context of metallurgy, mechanical interlocking refers to the first stage in the process of adhesion where adhesives are used to join two or more materials. In order to result in good adhesion, adhesive must penetrate any pores and irregularities.
What is interlock equipment?
An interlock can be defined as a device that prevents you from making an inappropriate maneuver, or adjusts the system to a safe state if you make an inappropriate maneuver.
What is a railway interlocking system?
A railway interlocking system controls the traffic in a railway station, and between adjacent stations. The control includes train routes, shunting moves and the movements of all other railway vehicles in accordance with railway rules, regulations and technological processes required for the operation of the railway station.
What is computer-based interlocking equipment?
Computer-based interlocking (CBI) equipment is safety equipment used to provide functional safety as part of railway signalling interlockings. Other terms used for CBIs are electronic interlockings and processor based interlockings. CBI equipment is stationary trackside equipment located along the railway line or in buildings.
What is a non-interlocked station?
Non-interlocked stations are what their name implies: there is no interlocking of any kind. The points have to be set appropriately and locked manually before pulling off a signal. The station master is personally responsible for ensuring that this is done and is supposed to have the keys to unlock the points with him or under his control.
What is routeroute relay interlocking (RRI)?
Route Relay Interlocking (RRI) is the system used in large and busy stations that have to handle high volumes of train movements. In this, an entire route through the station can be selected and all the associated points and signals along the route can be set at once by a switch for receiving, holding, blocking, or dispatching trains.