DOMESTIC WIRING DIAGRAMSSEMINAR BY- DESAI KARAN ALPESH India1Karan Desai(Follow me on twitter/@karlmit)

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1SYNOPSIS Beginning of domestic wiring. Evolution of domestic wiring diagram. Importance of wiring diagram.Domestic wiring diagram.Principles of circuit design in lighting and power circuits.Simple control circuit in domestic installation.General guidelines for wiring diagrams. Conclusions and summary

21.Beginning of domestic wiring31ST DECEMBER 1879: EDISON SHOWED WORLD HIS DISCOVERY OF ELECTRICITY.

1881: EDISON DISCOVERED INCANDESCENT LAMP WHICH LED TO EARLY WIRING SYSTEM.

1892 ONWARDS: SIMPLE TO COMPLICATED DOMESTIC WIRING METHODS AND THEREBY DIAGRAMS EVOLVED.

3Quick shots31.Beginning of domestic wiring. (contd.)

WOODEN PLANKSIMPLE WIREBULB OR LAMPVERY SIMPLE AND PRIMITIVE WIRING TYPE..

GENERALLY ONE LAMP IN ONE HOUSE

DEPICTED RICHNESS

LIMITATION: USE OF WOODEN ELECTRICAL DEVICES CAUSED GREAT LOSS DUE TO OCCASIONAL FIRE.42. Evolution of domestic wiringFrequent fires caused porcelain electrical devices in great demandThe first manufacturers of electrical porcelain wereEmpire China Worksin Green point andUnion Porcelain Worksin Green point, NY in 1889-90.

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2.Evolution of domestic wiring(contd)Gradually the electrical instruments evolved with more materials and complex wirings.Presently the domestic electrical wirings are made of following materials:CopperCopper alloysAluminumAluminum alloysTungsten

Copper wireAluminum wires63.Importance of wiring diagram.An important tool for installing and testing home electrical circuits.Also help you understand how electrical devices are wired.Will depict how various electrical devices and controls operate.Diagram consist of standard symbols of electrical devices, illustrated colored wires etc; which easily shows what wire goes where.A GOOD DIAGRAM IS, THUS, IMPORTANT FOR WIRING YOUR HOME ACCURATELY AND ACCORDING TO ELECTRICAL CODES..

74.DOMESTIC WIRING DIAGRAMFOR DOMESTIC APPLIANCES, SINGLE PHASE 230V, 50 HZ AC SUPPLY IS MADE AVAILABLE.

SEQUENCE OF EQUIPMENTS IN ELECTRICAL INSTALLATION

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4.Domestic wiring diagramcontHeavy LoadsLight loads95. Principles of circuit design in lighting and power circuits.

DISADVANTAGE OF HAVING LOAD POINTS AFTER THE MAIN DISTRIBUTION BOARD.REASON FOR INTRODUCING SUBCIRCUITS.105.Principles of circuit design in lighting and power circuits(contd)Light and fan circuit: