Overhead Construction for Tramways, Trolley Buses and Railways: As we know already that, for trams, trolley buses and for railways operating at 1,500 V and above overhead contact wire is used. The design of overhead…
Current Collector for Overhead System and Types of Current collector in traction: The current in the overhead system is collected with the help of sliding contact collector mounted on the roof of the vehicle. The…
Current Collection System in Electric Traction and Types of Current Collection: There are mainly two systems of current collection system for locoÂmotives, tramways or trolley buses viz Conductor rail system and Overhead system. Current collection…
What is Electric Traction? - Introduction, Definition, Working, Advantages and Disadvantages Electric traction was first introduced in Britian in the year 1890 at 600 V dc using third rail for urban and suburban services. For…
What is Flood Lighting? - Definition and Calculations Flood lighting means flooding of large surfaces with light from powerful projectors. It is employed to serve one or more of the following purposes. Aesthetic Flood lighting:…
What is Street Lighting? - Objectives, Principles and Types The main objects of street lighting are : To make the traffic and obstructions on the road clearly visible in order to promote safety and convenience.…
Methods of Lighting Calculations: The different methods of lighting calculations are Watts per square metre method. Lumen or light flux method. Point to point or inverse-square law method. 1. Watts Per Square Metre Method. This…
Factory Lighting in illumination - Fittings and Maintenance: Adequate factory lighting is of vital importance, as it provides improved amenities for the employees, increased production and has a definite economic value in reducing accidents with…
Design of Lighting Schemes: The Design of lighting schemes should be such that it may, provide adequate illumination, provide light distribution all over the working plane as uniform as possible. provide light of suitable colour,…
Types of Lighting Schemes: The distribution of the light emitted by lamps is usually controlled to some extent by means of reflectors and translucent diffusing screens, or even lenses. The interior types of lighting schemes…
