This document discusses different methods of electrical wiring systems. It describes joint box wiring where connections are made through joints in boxes using connectors. Loop-in wiring is also described, where circuits are looped from one outlet to the next in parallel to allow individual control. The advantages of loop-in wiring are easier fault location and no concealed joints, while disadvantages include higher wire lengths and voltage drops. Finally, it briefly mentions cleat wiring as a temporary system that holds wires on walls using cleats.
The wiring is important to every industries and domestic.And how the electrical power comes from transmission line to meter board to our domestic switch board ,switches etc.Here we explain the contents of the domestic wiring and industrial electrification etc.
below shows related documents.
KSRM COLLEGE OF ENGINEERING ,KADAPA.
_________________________
ELECTRIACAL WIRING IN DOMESTIC AND INDUSTRIES
Contents :
Introduction
1.Electrical power supply wiring.
2.Domestic electric circuits.
3.Domestic wiring .
4.Sub-circuits in domestic wiring.
5.Methods of wiring.
6.Industrial Electrification .
7.Types of installation.
8.Electrical installation for power circuits.
INTRODUCTION :
Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets and light fittings in a structure. Wiring is subjected to safety standards for design and installation. Allowable wire and cable types and sixes are specified according to the circuit operating voltage and electric current capability, with further restriction on environmental conditions ,such as ambient temperature range, moisture levels, and exposure to sunlight and chemicals .
Associated circuit protection, control and distribution devices within a building’s wiring system are subject to voltage, current and functional specification. It is necessary to select proper type of wiring scheme for the domestic purpose. Thus a network of wires connecting various accessories for distribution of electrical energy from the supplier meter board to the numerous electrical energy consuming devices through controlling and safety devices is known as Electrical wiring.
Electrical power supply wiring
Fig(1):Electrical power transmission from electric pole to energy meter to distribution board
Domestic electric circuits:
1.Electric power is usually generated at places which are far away from the places where it is consumed . At the generating station, the electric power is generated at 11KV volts . This voltage alternates at a frequency of 50HZ.
2.The power is transmitted over a long distance at high voltages to minimize the loss of energy in the transmission.
3.The electric power line enter our house through three wires -namely the live wire, the neutral wire and the earth wire.
4.To avoid confusion we follow a colour code for insulating these wires.
5.The ted wire is the live wire, and the black wire is neutral, the earth wire is given green plastic insulation.
Domestic wiring
1.The live wire has a high potential of 220V whereas the neutral wire has zero potential .Thus the potential difference between the live wire and the neutral wire is 220-0=220V.
2.The earth wire is much thicker in size and is made of copper. One end of it is connected to a copper plate buried deep under the earth. The earth connection is made to the electric meter and then the main switch.
This presentation includes Electrical services basic layout and basic terminologies related to electrical services and its also includes types of wiring and system of wiring....
Design considerations of electrical installationsvishalgohel12195
Design considerations of electrical installations
Types of Loads
Estimation of load
Demand factor
Load factor
Diversity factor
Electric supply system
Overhead supply system
Underground cable system
Selection of type of wiring
Durability
Appearance
Cost
Safety
Accessibility
Maintenance cost
System of wiring
The wiring is important to every industries and domestic.And how the electrical power comes from transmission line to meter board to our domestic switch board ,switches etc.Here we explain the contents of the domestic wiring and industrial electrification etc.
below shows related documents.
KSRM COLLEGE OF ENGINEERING ,KADAPA.
_________________________
ELECTRIACAL WIRING IN DOMESTIC AND INDUSTRIES
Contents :
Introduction
1.Electrical power supply wiring.
2.Domestic electric circuits.
3.Domestic wiring .
4.Sub-circuits in domestic wiring.
5.Methods of wiring.
6.Industrial Electrification .
7.Types of installation.
8.Electrical installation for power circuits.
INTRODUCTION :
Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets and light fittings in a structure. Wiring is subjected to safety standards for design and installation. Allowable wire and cable types and sixes are specified according to the circuit operating voltage and electric current capability, with further restriction on environmental conditions ,such as ambient temperature range, moisture levels, and exposure to sunlight and chemicals .
Associated circuit protection, control and distribution devices within a building’s wiring system are subject to voltage, current and functional specification. It is necessary to select proper type of wiring scheme for the domestic purpose. Thus a network of wires connecting various accessories for distribution of electrical energy from the supplier meter board to the numerous electrical energy consuming devices through controlling and safety devices is known as Electrical wiring.
Electrical power supply wiring
Fig(1):Electrical power transmission from electric pole to energy meter to distribution board
Domestic electric circuits:
1.Electric power is usually generated at places which are far away from the places where it is consumed . At the generating station, the electric power is generated at 11KV volts . This voltage alternates at a frequency of 50HZ.
2.The power is transmitted over a long distance at high voltages to minimize the loss of energy in the transmission.
3.The electric power line enter our house through three wires -namely the live wire, the neutral wire and the earth wire.
4.To avoid confusion we follow a colour code for insulating these wires.
5.The ted wire is the live wire, and the black wire is neutral, the earth wire is given green plastic insulation.
Domestic wiring
1.The live wire has a high potential of 220V whereas the neutral wire has zero potential .Thus the potential difference between the live wire and the neutral wire is 220-0=220V.
2.The earth wire is much thicker in size and is made of copper. One end of it is connected to a copper plate buried deep under the earth. The earth connection is made to the electric meter and then the main switch.
This presentation includes Electrical services basic layout and basic terminologies related to electrical services and its also includes types of wiring and system of wiring....
Design considerations of electrical installationsvishalgohel12195
Design considerations of electrical installations
Types of Loads
Estimation of load
Demand factor
Load factor
Diversity factor
Electric supply system
Overhead supply system
Underground cable system
Selection of type of wiring
Durability
Appearance
Cost
Safety
Accessibility
Maintenance cost
System of wiring
#Building wiring system#presentation#Wire is a single electrical conductor, w...Bint Shameem
#An “electrical power system” can be defined as a network of electrical components used to supply, transform, transfer and distribute electrical energy. An “electrical wiring system” instead, is responsible for powering specific elements within a system, that need electricity to work.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
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How to Split Bills in the Odoo 17 POS ModuleCeline George
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Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
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Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
2. Methods of Electrical Wiring Systems
• Wiring (a process of connecting various
accessories for distribution of electrical energy
from supplier’s meter board to home appliances
such as lamps, fans and other domestic appliances
is known as Electrical Wiring)
3.
4. Joint Box or Tee or Jointing System
• In this method of wiring, connections to appliances are made through joints.
These joints are made in joint boxes by means of suitable connectors or
joints cutouts. This method of wiring doesn’t consume too much cables size.
• You might think because this method of wiring doesn’t require too much
cable it is therefore cheaper. It is of course but the money you saved from
buying cables will be used in buying joint boxes, thus equation is balanced.
This method is suitable for temporary installations and it is cheap
5.
6. Loop-in or Looping System
• This method of wiring is universally used in wiring. Lamps and other appliances are
connected in parallel so that each of the appliances can be controlled individually.
When a connection is required at a light or switch, the feed conductor is looped in
by bringing it directly to the terminal and then carrying it forward again to the next
point to be fed.
• The switch and light feeds are carried round the circuit in a series of loops from one
point to another until the last on the circuit is reached. The phase or line conductors
are looped either in switchboard or box and neutrals are looped either in
switchboard or from light or fan. Line or phase should never be looped from light
or fan.
7. Advantages of Loop-In Method of Wiring
• It doesn’t require joint boxes and so money is saved
• In loop – in systems, no joint is concealed beneath
floors or in roof spaces.
• Fault location is made easy as the points are made only
at outlets so that they are accessible.
8. Disadvantages of Loop-In Method of
Wiring
•Length of wire or cables required is more
and voltage drop and copper losses are
therefore more
•Looping – in switches and lamp holders is
usually difficult.
9. Different Types of Electrical Wiring
Systems
1. Cleat Wiring
• This system of wiring comprise of ordinary VIR or PVC insulated wires
(occasionally, sheathed and weather proof cable) braided and compounded held on
walls or ceilings by means of porcelain cleats, Plastic or wood.
• Cleat wiring system is a temporary wiring system therefore it is not suitable for
domestic premises. The use of cleat wiring system is over nowadays.
