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Building Services Engg. Electrical installations. Building services. Introduction To Building Services. Building Services. MEP- Building services. Design considerations of electrical installations. Rio Antirio Bridge - Report. Beijing International Airport Terminal 3. Related Books Free with a 30 day trial from Scribd. Uncommon Carriers John McPhee. The Art of War Sun Tsu. Related Audiobooks Free with a 30 day trial from Scribd. Elizabeth Howell. Jeathmar Aripin. Rohit Mangalekar. Preeti Puranik , Project Coordinator at venkateshwara associates.
Debashis Sarkar. Study China. Jonathan Lim. Show More. Views Total views. Actions Shares. No notes for slide. Electrical Systems in a Building 1. Syllabus 3. With the advent of fluorescent lamp that is compatible with daylight, cheap to run and not emitting heat gain in buildings, it made possible to install electric lighting supplementing day light and in extreme cases provide the only source of light in a windowless environment. Introduction 5. Electricity 7. Electricity Generation 8.
The other method includes fuels Coal, diesel or gas to fire boilers and pass stream and generate electricity through generators. Transformer step up several thousands or even hundreds of thousands of volts before it is supplied to the transmission lines or cable. By transmitting electricity at high voltages less power is lost in the cables. At the receiving end of voltage is stepped down by transforms in local sub-stations to consumers at volts.
Electric Generator In small buildings the cable run is kept as short as possible, terminating in a distribution board at the first convenient position. In these buildings the distribution board will be fitted with a seal box to prevent moisture from entering the insulation of the service cable, a main fuse for the premises in a box sealed by the supply authority and the consumer unit or other switch and fuse gear belonging to the building. The position chosen for the distribution board should be readily accessible both for meter reading and for replacing fuses.
In some cases special glasses are provided so that meter can be read without entering the premises. Entry in the buildings Normally small buildings are supplied with electricity by two wires, one phase wire and the other neutral.
This is known as single phase supply and gives a voltage for the premises of volts. The loading of the supply wiring is balanced between the phases by using the phases in rotation so that each one services every third building. The voltage. The voltage between any two of the phases wires is Volts. And between any phase wire and the neutral is volts.
The balancing of load is then achieved by serving different areas of the building by different phases. Electric motor are usually designed for three phase operation. Single and Three Phases Distribution Most low voltage systems connect one supply conductor to the earth ground. Applications Of Earthing Functions of Earthing Equipment Earth : Path for fault current, lower touch voltage, protection against electric shock Lighting Earth : Low resistance path to diverse the current under lightning attack.
First: Leisure category. Restaurant is a commercial building where meals are prepared and served to customers, it typically include the following spaces: Entry and Waiting Area. Dining Room. Bar or Lounge. Walk-up Service or Take Out Counter. Restrooms ADA compliant. Hostess and Wait Stations. Ample Aisle and Circulation Space. Dry and Refrigerated Storage. Office and Employee Amenities. Are building where people can go to play many different types of sports.
Sports facilities typically include the following spaces:. Table Tennis. Single Phase V AC :. Click image to enlarge. You may also check the related Electrical Wiring Installation Tutorials. Very informative as it really helped me to understand the concept of using MCB and wiring, but I have one query. How much load in k W can a single-phase power supply from LT distribution handle?
Because seeing your scheme above I guess you are supplying a load of around 15 to 20 kW by just tapping single-phase supply from LT distribution. Your valuable suggestion would really help me in this regard. I benefit a lot from your articles and diagrams.
My electrical knowledge has increased please continue doing good. Your email address will not be published. Notify me of follow-up comments by email.
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