various types of electrical services in building'terminology related to electric circuit direct and indirect current conventional symbols electricity distribution diagram

1. DIPLOMA ENGINEERING
CIVIL ENGINREERING DEPARTMENT (06)
SUBJECT:BUILDING SERVICES (3360604)
SEMESTER:VI
CH:2 ELECTRICAL SERVICES & LAYOUT
MISS BHAVIKA H.PATEL

2. TOPICS INCLUDES,
1.Introduction
2.Terminology related to electric
circuit & wiring
3.Direct current & alternating
current
4.Conventional symbols
5.Types of wires and wiring system
6.Layout of house wiring
7.Estimation of wiring

3. SCHEMATIC DIAGRAM OF ELECTRICITY
Hydroelectric
power station
Thermoelectric
power station
Electro
thermonuclear
power station
Step up transformer
National grid pylon
Step down transformer
Local grid
Public and
domestic lighting
Transport(Rails)
Industry & public
services
Radio
communication

4. TERMINOLOGY RELATED TO ELECTRIC CIRCUIT:
1.Electric current:
Electron charge moves one end to another end which known as electric current.it is denoted by ”I”.
2.Ampere:
One coulomb charge pass in one second in conductors is called as ampere. It is denoted by “A”
3.Elecro motive force(EMF):
Energy per unit electric charge that is imparted by an energy source, such as an electric generator or
battery.
4.Potential difference:
The difference of electrical potential between two points.

5. 5.Resistance:
It is a measure of the opposition to current flow in electric circuit.
6.Conductor:
It is an object or material that allows the flow of charge in one or more directions.(Copper,
Aluminium)
7.Insulators:
It is an object or material which dose not allows the flow of charge in one or more
directions.(timber)
8.Semi conductors:
It is a material which allows or not allows flow of charge (conductivity between conductors and
insulators).(sillicon,gallium)
9.Power:
The rate of workdone is known as power.

6. THANK YOU